FINAL REPORT NOAA/NMFS GRANT NA16FM1658. SUBMITTED To:

LIFE HISTORY, ESSENTIAL HABITAT AND STOCK ASSESSMENT OF HIGHLY MIGRATORY SHARKS IN U.S. AND MEXICAN WATERS: FISHERIES RESEARCH BY THE CENTER FOR SHARK RESEARCH, 2001 2002 FINAL REPORT NOAA/NMFS GRANT NA16FM1658 SUBMITTED To: NOAAlNMFS Office of Sustainable Fisheries Highly Migratory Species Division 1315 East-West Highway Silver Spring, MD 20910 SUBMITTED By: Robert E. Hueter Center for Shark Research Mote Marine Laboratory APRIL 30, 2003 Mote Marine Laboratory Technical Report 913 This document is printed on recycled paper

TABLE OF CONTENTS EXECUTIVE SUMMARY.......................................... 1 PROJECT INFORMATION.......................................... 2 SUMMARY OF PROJECT ACCOMPLISHMENTS AND EXPENDITURES......... 3 Work Accomplishments.............................................. 3 Primary Project Tasks................................ 3 Summary of Results.............................................. 3 Field research in MexicofTexas............................ 3 Florida offshore large shark surveys............................... 4 Archival tagging in South Carolina............................. 4 Small coastal shark assessment........................... 4 Florida coastal relative abundance surveys.................... 5 Tagging database...................... 6 Response to NMFS requests............................ 6 Publications and conferences.................................... 7 Major Findings and Conclusions................................... 9 Expenditures..................................................... 10 SIGNATURE........................................ 10 TABLES.......................................... 11-55

EXECUTIVE SUMMARY Mote Marine Laboratory's Center for Shark Research (CSR) is an independent, international research center established by the U.S. Congress in 1991 and dedicated to the multidisciplinary study and public understanding of sharks, skates and rays. In 2001-2002, the CSR continued its mission to conduct scientific studies on sharks in cooperation with the National Marine Fisheries Service (NOAAlNMFS) to respond to the agency's need for biological data in order to manage shark fisheries. The primary emphasis of this research and information program involved biological assessments of sharks as a fishery resource. This project addressed major gaps in our resource information base for the blacktip shark (Carcharhinus limbatus), a common large coastal shark species inhabiting nearshore waters of the U.S. east coast, and other large and small coastal shark species. To assist NMFS in its objective to manage shark fisheries, the primary research activities undertaken by the CSR in this project were new studies on the life history, essential habitat, and population status of the blacktip shark and other large and small coastal sharks inhabiting state and federal waters of the Gulf of Mexico. This research was conducted primarily in the Gulf of Mexico off the U.S. coast (Florida and Texas), along the U.S. southeastern Atlantic coast (South Carolina) and along the Mexican Gulf coast. New technology in the form of archival and satellite tags were deployed on large sharks of the region. The work in Mexico was conducted in collaboration with the Instituto Nacional de la Pesca (INP) as part of the MEXUS-Gulf initiative. The CSR also served as a center for the public understanding and communication of information on sharks and for national and international exchanges on issues relating to shark biology. Through these various activities the CSR significantly advanced the course of shark research and fisheries conservation and management in 2001-02, and continued to serve as a prod uctive partnership between Mote Marine Laboratory and the National Marine Fisheries Service.

PROJECT INFORMATION Award Number: NA16FM1658 Amount of Award: Federal $ 179,000 Applicant Match $ 0 Total $ 179,000 Project Title: Life History, Essential Habitat and Stock Assessment of Highly Migratory Sharks in U.S. and Mexican Waters: Fisheries Research by the Center for Shark Research, 2001-2002. Recipient: Mote Marine Laboratory, Sarasota, Florida Award Period: July 1, 2001 to June 30, 2002 Period Covered by this Report: July 1, 2001 to June 30, 2002 (Final Report) 2

SUMMARY OF PROJECT ACCOMPLISHMENTS AND EXPENDITURES Work Accomplishments Primary Project Tasks: The following primary tasks were scheduled for this project: a. Field research in MexicolTexas b. Florida offshore large shark surveys c. Archival tagging in South Carolina d. Small coastal shark assessment e. Florida coastal relative abundance surveys f. Tagging database g. Response to NMFS requests h. Publications and conferences Summary of Results: a. Field research in MexicolTexas Collaborative research with Mexico's Instituto Nacional de la Pesca (INP) was conducted during the project year. INP scientists in Quintana Roo provided historical information on shark surveys in Laguna Yalahau, where CSR scientists have been collecting and tagging sharks since 1995. Information on. tag returns was collected and plans were made for additional field studies to complement the previous work in the region. Due to factors such as deterioration in the linkage between the INP and NMFS through the MEXUS program, as well as changes in leadership in Mexico, the CSR has begun to experience difficulties in obtaining permits to conduct field research in Mexico. To counteract this, efforts were made to enhance the reporting of tag recaptures from within Mexico by improving the link between the CSR and INP staff that regularlyvisitfishing areas and interact with fishermen directly. Collaborative shark tagging efforts between the CSR and Texas recreational anglers were conducted during the project year. Young blacktip sharks (Carcharhinus limbatus) in their Texas nurseries and other juvenile and small adult sharks in the western Gulf have been targeted to assess the exchange rate of this species between U.S. and Mexican coastal waters. A total of 71 sharks of 6 species were tagged and released including 43 young blacktip sharks, the target species for this work. Fin clips were taken from 31 of these blacktips to aid in an ongoing population genetics study of this species through a collaboration with geneticists at Southern Illinois University. Four blacktip sharks tagged in Texas with CSR tags were recaptured during this period. One of these sharks was recaptured during the fall at the south tip of Texas (south end of Padre Island), about 85 nautical miles south of its tagging site near Corpus Christi. 3

b. Florida offshore large shark surveys Sampling for large coastal sharks (blacktip; bull, C. leucas; great hammerhead, Sphyrna mokarran; and others) was conducted throughout the project year in two primary areas off Florida (Tables 3-4): 1) southwest Florida in the vicinity of Boca Grande Pass, where these sharks congregate in the late spring and summer; and 2) the Florida Keys in the vicinity of Summerland Key, about 20 miles from Key West, where these sharks are found in the late fall and winter. Sharks were caught on longlines or drumlines, tagged with external tags, and released. A total of 241 sharks of nine species were caught and 207 were tagged and released. Of these tagged sharks, 20 were additionally fitted with either satellite or acoustic tags. Some sharks were outfitted with satellite tags (pop-off archival tags [PAT] or satellite position-only tags [SPOT]). Other sharks were outfitted with acoustic telemetry transmitters and tracked for short periods (up to six hours). This exploratory research forms the basis for extended studies on the stock structure and essential habitat of these coastal species. Offshore sampling was undertaken aboard the RN Eugenie Clark in May and June 2002. (Tables 5-6). Fourteen sets of 10 drumlines each were undertaken in May in the eastern Gulf of Mexico between Tampa Bay and Captiva Island. Twenty-nine sharks of seven species were caught and 22 were tagged and released. Live sharks were measured, tagged, had a genetic sample collected and release. Five dead animals were retained, one of which was sampled for studies of yolk proteins. One sandbar shark (C. plumbeus) was fitted with a PAT tag to study its movement patterns. A single large set (20 hooks) was undertaken in June to collect blacktip sharks. This set caught 16 sharks, 10 of them blacktips. Data collected during these sets are being used to examine bait effectiveness and compare inshore and offshore catch rates over the next decade to monitor results and effectiveness of state and federal FMP's for shark fisheries. c. Archival tagging in South Carolina Daily sampling for blacktip sharks off Cape Romain, South Carolina, was conducted in June 2002. A floating longline with 20 hooks was used, and the line was patrolled and checked continuously during the fishing period. The hooks were rebaited as needed. A total of 60 sharks were caught, including twelve large adult blacktip females. Of these eleven were alive on the line. One was found dead on the line after a bull shark broke the line, causing a retrieval delay. Of the eleven live sharks, nine were successfully tagged with both archival and M-type tags (Table 7). All released sharks swam vigorously away after tagging and release. Other species encountered were Atlantic sharpnose, bull, lemon (Negaprion brevirostris) and bonnethead sharks.,~ d. Small coastal shark assessment The current status of four species of small coastal sharks [Atlantic sharpnose (Rhizoprionodon terraenovae), blacknose (C. acronotus), finetooth (C. isodon) and bonnethead (Sphyrna tiburo)] was assessed using Bayesian age-structured population models. The results of the model indicated that the best estimate of the status of Atlantic 4

sharpnose shark in 2000 was 69.6% of the 1972 biomass. Sensitivity tests indicated that changes in data on catches, catch rates and biology did not significantly change the estimates of biomass. The results of risk assessment indicate that the probability of depletion of the population to below 5% of the 1972 level is low, even with substantial increases in future catches. Model results for the other three species indicate that mature female biomass levels (relative to 1972) were 94.1 %, 9.1 % and 79.7%, for the blacknose, finetooth and bonnethead, respectively. The data used to construct these models was of lower quality than for the Atlantic sharpnose, and the results are highly uncertain. The high level of depletion estimated forthe finetooth shark appears invalid due to conflicting natural mortality and reproductive data. The results for all species show a high level of uncertainty, indicating a need to improve the quality of data collected if assessments are to be improved. Figure 1: Biomass depletion estimates of Atlantic sharpnose sharks in the Gulf of Mexico and Atlantic. Dashed lines are 90% confidence intervals; solid lines are median values. --- 100 <l> 80 > " <l> N r-- en 60 -.,. -- --.... -0 0 ~ "--' (f) (f) (ti E 0 co 4 0 20 Year e. Florida coastal relative abundance surveys Field trips to two shark nursery areas in the Florida Gulf (Pine Island Sound and Yankeetown) were conducted during the project year to assess the relative abundar1ce of blacktip shark neonates, young-of-the-year (YaY) and older juveniles (Tables 8-11). These field trips comprised 100 gillnet sets (50 in each area) using a standardized, randomstratified design, the identical methodology used during previous CSR studies in these same areas, resulting in the capture of 1,502 sharks of 7 species including 738 blacktips. Of these captured sharks, 857 were tagged and released using conventional dart tags designed for small sharks. Additionally, 143 fin clip samples were collected from neonate and yay blacktip sharks during these surveys as part of an ongoing population-level 5

genetics study of this species with geneticists at Southern Illinois University. All bycatch was identified, measured, and released. A total of 652 specimens were captured comprising 29 species. f Tagging database The CSR shark tagging database was maintained and updated throughout the project year as new tagging was conducted and recaptured tags were reported. Efforts were also made to improve the information structure of some of the data tables in order to make the querying process more efficient. Preliminary analyses of the most recent relative abundance data were initiated and compared to other years data in orderto detect changes in juvenile blacktip shark abundance and gauge the rebuilding of this stock. Additionally, a total of 63 recaptures were reported and incorporated into the database for later analysis (Table 12). One great hammerhead shark (Sphyrna mokarran) tagged in the Florida Keys was recaptured by a commercial fisherman in the Atlantic (off Port Salerno) after being at large for 3 days. This represents a minimum movement of 198 nautical miles. Tag rewards were paid to fishermen for recovery of dart, roto, M-type and for one PAT satellite tag that had prematurely separated from a large blacktip shark. Effort was made to improve satellite tag attachment techniques during the period of this report. Part of these efforts consisted of attaching a "dummy" PAT tag to a large bull shark in the lab's public aquarium and observing how the tag and shark responded to biofouling and other associated stresses. g. Response to NMFS Needs A full report on all CSR data on shark nursery areas collected over the past ten years was prepared for submission to the NMFS Narragansett Laboratory in early 2002. During July and August 2001, the CSR was inundated with requests for information on sharks in response to the summer's media focus on shark attack. Numerous media interviews were given by CSR scientists and much of the substance of these interviews involved questions of shark fisheries management. Information on shark migratory patterns and attack behavior was provided to NMFS on an as-needed basis during this unusual period. CSR Director Dr. Robert Hueter made a special presentation to the staff of NMFS/SERO in October 2001 on CSR research and related information. In April 2002, Dr. Hueter participated in the annual meeting of the Highly Migratory Species Advisory Panel at NMFS headquarters in Silver Spring in April. Information was provided on the status of shark stocks along the U.S. east coast. Also in April, Dr. Hueter participated in a NMFS workshop in Tampa on Southeast Region Cooperative Research. In May, Dr. Hueter participated in a NMFS-sponsored effort in Washington DC to inform the national media on issues related to shark attack, with a press conference at the National Press Club and corollary activities. Dr. Hueter and Staff Scientist Dr. Colin Simpfendorfer also participated in the 2002 Shark Stock Evaluation Workshop (SEW) at the NMFS Laboratory in Panama City in June. Six CSR documents were prepared and submitted to the SEW that were used in the data presentations and analyses for the workshop. 6

h. Publications and Conferences CSR researchers participated in a number of scientific conferences during this project year, including the American Society of Ichthyologists and Herpetologists & American Elasmobranch Society annual meetings in State College, Pennsylvania (July 2001) and Kansas City, Missouri (June 2002), the American Fisheries Society annual meeting in Phoenix, Arizona (August 2001), the 1 51 International Elasmobranch Husbandry Symposium in Orlando, Florida (October 2001), and a NMFS-sponsored conference on shark attack in Tampa, FL (June 2002). Scientific presentations in shark biology were made at all of these meetings by CSR staff. Results of CSR research also were reported through scientific publications during the project. Among the more than 40 publications produced by the CSR scientific staff during the 2001-02 project year were the following (CSR staff in bold): Hueter, RE. and C.A. Simpfendorfer (2002) Trends in blue shark abundance in the western North Atlantic as determined by a fishery-independent survey. ill Sharks of the Open Ocean (in press). Wilga, C.D., R.E. Hueter, P.C. Wainwright and P.J. Motta (2002) Evolution of upper jaw protrusion mechanisms in elasmobranchs. American Zoologist (in press). Pretlow-Edmonds, M.A., P.J. Motta and R.E. Hueter (2001) Food capture kinematics of the suction feeding horn shark, Heterodontus francisci. Environmental Biology of Fishes 62:415-427. C. Manire, R. Hueter, E. Hull and R Spieler (2001) Serological changes associated with gill-net capture and restraint in three species of sharks. Transactions of the American Fisheries Society 130: 1 038-1 048. Hueter, R.E., C.J. Murphy, M. Howland, J.G. Sivak, J.R Paul-Murphy and H.C. Howland (2001) Dynamic refractive state and accommodation in the eyes of free-swimming vs. restrained juvenile lemon sharks (Negaprion brevirostris). Vision Research 41: 1885-1889. Hueter, R.E. (2001) Historical perspectives: Perry W. Gilbert. Copeia 2001 (1 ):279-284. Heupel, M.R. and R.E. Hueter (2002) Importance of prey density in relation to the movement patterns of juvenile blacktip sharks (Carcharhinus Iimbatus) within a coastal nursery area. Marine and Freshwater Research 53 :543-550. Hueter, R.E., M.R. Heupel, E.J. Heist and 0.8. Keeney (2002) The implications of philopatry in sharks for the management of shark fisheries. NW Atl. Fisheries Org. Research Document SCR Doc. 02/122:1-9. Hueter, R.E., M.R. Heupel, E.J. Heist and 0.8. Keeney (In review) The implications of philopatry in sharks for the management of shark fisheries. Journal of Northwest Atlantic Fishery Science. Motta, P.J., R.E. Hueter, T.C. Tricas and AP. Summers (2002) Kinematic analysis of suction feeding in the nurse shark, Ginglymostoma cirratum (Orectolobiformes, Ginglymostomatidae). Copeia 2002:24-38. Sasko, D.E., R.E. Hueter and P.J. Motta (In review) Prey capture behavior and kinematics of the Atlantic cownose ray, Rhinoptera bonasus. Copeia. Simpfendorfer, C.A., M.R. Heupel and R.E. Hueter (2002) Estimation of short-term centers of activity from an array of omnidirectional hydrophones and its use in studying animal movements. Canadian Journal of Fisheries and Aquatic Sciences 59 :23-32. 7

Simpfendorfer, C.A., R.E. Hueter, U. Bergman and S.M.H. Connett (2002) Results of a fishery-independent survey for pelagic sharks in the western North Atlantic, 1977-1994. Fisheries Research 55: 175-192. Simpfendorfer, CA, Kitchingman, AM, and McAuley, RB. 2002. Distribution, biology and fishery importance of the pencil shark, Hypogaleus hyugaensis (Elasmobranchii: Triakidae), in the waters off south-western Australia. Marine and Freshwater Research 53: 781-789. Simpfendorfer, CA, McAuley, RB, Chidlow J, and Unsworth, P. 2002. Age and growth of the dusky shark, Carcharhinus obscurus, from Western Australian waters. Marine and Freshwater Research 53: 567-573. Heupel, MR and Simpfendorfer, CA. 2002. Estimation of survival and mortality of juvenile blacktip sharks, Carcharhinus limbatus, within a nursery area based on telemetry data. Canadian Journal of Fisheries and Aquatic Sciences 59:6 24-632. Simpfendorfer, CA. 2002. Smalltooth sawfish: the USA's first endangered elasmobranch? Endangered Species Update, 19: 45-49. Heupel, MR and Simpfendorfer, CA. Submitted. Intra-specific interactions between juvenile sharks within a nursery area. Marine Biology. Simpfendorfer, CA, Goodreid, AB, and McAuley, RB. 2001. Size, sex and geographic v!3riation in the diet of the tiger shark (Galeocerdo cuvier) in Western Australian waters. Environmental BioI. of Fishes, 61 :37-46. Simpfendorfer, CA, Goodreid, A, and McAuley, RB. 2001. The diet of three commercial important sharks from Western Australian waters. Marine and Freshwater Research, 52 :975-985. M.R. Heupel & R.E Hueter (2001). Use of an automated acoustic telemetry system to passively track juvenile blacktip shark movements. In: Electronic Tagging and Tracking in Marine Fisheries J.R. Sibert & J.L. Nielsen (eds.) pp. 217-236 Kluwer Academic Publishers, Netherlands. C.A. Simpfendorfer, M.R. Heupel & R.E. Hueter (2002). Estimation of short-term centers of activity from an array of omnidirectional hydrophones, and its use in studying animal movements. Canadian Journal of Fisheries and Aquatic Sciences 59, 23-32. M.R. Heupel, C.A. Simpfendorfer & R.E. Hueter (In review). E.stimation of shark home ranges using passive monitoring techniques. Environmental Biology of Fishes. Heithau5, M. R, L. M. Dill, G. J. Marshall, and B. Buhleier. 2002. Habitat use and foraging behavior of tiger sharks (Galeocerdo cuvier) in a seagrass ecosystem. Marine Biology 140: 237-248. Heithau5, M. R. and A. Frid. 2002. Species and sex-class differences in shark-inflicted injury frequencies, escape ability, and habitat use of green and loggerhead turtles. Marine Biology 140: 229-236. Heithau5, M. R. and L. M. Dill. 2002. Feeding Tactics and Strategies. Pages 412-422 in Perrin, W. F., B. Wursig, and H. G. M. Thewissen (eds.). The Encyclopedia of Marine Mammals. Academic Press.. of. Heithau5, M. R. and L. M. Dill. 2002. Food availability and tiger shark predation risk influence bottlenose dolphin habitat use. Ecology 83: 480-491. Dill, L. M., M. R. Heithau5, and C. J. Walters. in press. Behaviorally-mediated indirect species interactions in marine communities and their importance to conservation and management. Ecology. Heithau5, M. R. in review. Fish communities of seagrass meadows and associated habitats in Shark Bay, Western Australia. Bulletin of Marine Science. 8

Heithau5, M. R. in review. A trade-off between prey abundance and predation risk influence habitat use by a marine bird. Marine Biology. Heithau5, M. R. and A. Frid. in review. Optimal diving under the risk of predation. Journal of Theoretical Biology. Frid, A., M. R. Heithau5, and L. M. Dil l. in review. Sea turtles modify diving behavior in response to tiger shark predation risk. Animal Behavior. Major Findings and Conclusions: 1) Our studies of the blacktip shark nursery in Laguna Yalahau, Quintana Roo, Mexico have revealed that this area is a primary nursery for the species, fishing pressure on these juvenile sharks is extremely high in local Mexican waters, CPUE of the young blacktips in the lagoon has remained relatively stable since 1995, and migration patterns indicate a generally westerly movement out of the lagoon. No evidence of movements into the Caribbean or the U.S. eastern Gulf of Mexico has been found. 2) Young blacktip sharks in the western Gulf of Mexico comprise a different population from the eastern Gulf (both U.S. and Mexican) as revealed through both tagging studies and genetic analyses. 3) New fishery-independent surveys by the CSR in the Florida Gulf have been established to build an historical record of CPUE of large sharks in coastal and offshore waters. Satellite tag technology has been deployed to track long-term movements of large sharks in these waters and archival tags have been deployed in large blacktip sharks off South Carolina to track their movements. 4) Best estimate of the status of the Atlantic sharpnose shark in 2000 is 69.6% of the 1972 biomass and the probability of depletion of the population to below 5% of the 1972 level is low, even with substantial increases in future catches. Model results for the other small coastal shark species indicate that mature female biomass levels (relative to 1972) were 94.1 %, 9.1 % and 79.7%, for the blacknose, finetooth and bonnethead, respectively. The data used to construct these models was of lower quality than for the Atlantic sharpnose, and the results are highly uncertain. 5) Through its shark-tagging database, providing of data to NMFS for various management and public information needs, and participation of CSR scientists in,..: numerous scientific conferences as well as the publication of over 40 scientific papers, the Mote Center for Shark Research continued in a leading role of conducting excellent scientific research on sharks to improve our understanding of their role as a valuable marine resource. 9

Expenditures A total of $179,000 in project costs was scheduled for this one-year project. Actual expenditures during the project were $198,690. The project cost overrun of $19,690 was absorbed by Mote Marine Laboratory internal (nonfederal) programmatic funding as an applicant match to the project. SIGNATURE 30 April 2003 Robert E. Hueter, Ph.D. Principal Investigator Director, Center for Shark Research Mote Marine Laboratory Date 10

Table 1. location data for Texas recreational angler-tagged sharks during the period of this report. Sample Month Day Year Gear location latitude longitude Depth # (ft.) 98.0 7 8 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 99.0 7 9 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 100.0 7 11 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 101.0 7 12 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 102.0 7 12 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 103.0 7 20 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 104.0 8 2 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 105.0 9 6 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 106.0 9 7 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 107.0 9 10 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 108.0 9 11 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 108.5 9 11 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 108.6 9 12 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 109.0 9 15 2001 RR FP-Surfside Beach, Access 7 29'03.43N 95'08.55W 7 109.5 9 15 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 110.0 9 16 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 111.0 9 26 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 112.0 10 5 2001 RR Matagorda-Matagorda Beach 28'40.50N 95'49.80W 10 113.0 10 6 2001 RR Matagorda-Matagorda Beach 28'40.50N 95'49.80W 15 114.0 10 9 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 115.0 10 13 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 115.1 10 13 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 116.0 10 14 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 117.0 10 15 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 117.1 10 15 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 118.0 10 24 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 119.0 10 25 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 120.0 10 26 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 121.0 11 5 2001 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 122.0 11 10 2001 RR Matagorda-East Matagorda Beach 28'39.62N 95'49.36W 8 123.0 11 11 2001 RR Matagorda-East Matagorda Beach 28'39.09N 95'50.51W 7 124.0 3 25 2002 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86N 97'12.98W 15 125.0 3 25 2002 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86 N 97'12.98 W 15 126.0 3 30 2002 RR Corpus Christi-Bob Hall Pier, Padre Is. 27'34.86 N 97'12.98 W 15 127.0 6 2 2002 RR Corpus Christi-PINS 27'10.49 N 97'22.14 W 128.0 6 8 2002 RR Matagorda-10 mile marker, Matagorda 28'55.00 N 96'20.00W 129.0 6 8 2002 RR Matagorda-8 mile marker, Matagorda 28'50.00 N 96'25.00W 130.0 6 8 2002 RR Matagorda-8 mile marker, Matagorda 28'50.00 N 96'25.00W 131.0 6 15 2002 RR Corpus Christi-40 mile marker, PINS 132.0 6 19 2002 RR Corpus Christi-Bob Hall Pier, Padre Is. 2734.86 N 97'12.98 W 15 Table 2. Sharks caught, tagged and released in Texas coastal waters during the period of this report (n=71) Sample # Gear Scientific Name Sex Repro. PCl Fl Tl STl Tag # Condition (cm) (cm) (cm) (cm) 98.0 RR Carcharhinus limbatus M 1 42 47 57 59 1903 1 99.0 RR Carcharhinus limbatus M 1.5 44 49 60 62 1904 1 99.0 RR Carcharhinus limbatus F 1.5 45 50 61 63 1905 1 100.0 RR Carcharhinus limbatus F 1.5 44 49 58 60 1906 1 101.0 RR Sphyma lewini F 1.5 42 46 50 60 1907 2 101.0 RR Sphyma lewini F 1.5 43 47 59 61 1908 2 101.0 RR Sphyrna lewini F 1.5 39 49 55 57 1909 2 11

101.0 RR Sphyma lewini F 1.5 42 46 58 60 1910 2 101.0 RR Sphyma lewini F 1.5 40 44 59 57 1911 1 102.0 RR Sphyma lewini M 1.5 38 42 53 55 1912 2 103.0 RR Carcharhinus brevipinna F 1.5 53 59 71 73 1913 1 104.0 RR Carcharhinus limbatus M 1.5 55 62 74 78 1946 1 105.0 RR Carcharhinus limbatus F 1.5 53 59 71 73 1914 1 105.0 RR Sphyma lewini F 1.5 50 55 72 73 1915 1 106.0 RR Carcharhinus limbatus F 1.5 52 59 72 74 1916 1 107.0 RR Sphyma lewini M 1.5 55 69 71 1917 1 108.0 RR Carcharhinus limbatus M 1.5 52 59 71 73 1920 1 108.0 RR Carcharhinus limbatus M 1.5 48 55 66 68 1919 2 108.0 RR Carcharhinus isodon F 2 92 102 125 127 1918 1 108.5 RR Carcharhinus limbatus F 1.5 53 62 72 75 1947 1 108.5 RR Carcharhinus limbatus F 1.5 50 55 67 69 1900 1 108.5 RR Carcharhinus brevipinna F 1.5 56 63 73 77 1899 1 108.6 RR Carcharhinus limbatus M 1.5 50 56 68 70 1949 1 109.0 RR Carcharhinus limbatus F 1.5 55 61 75 77 1921 2 109.5 RR Carcharhinus limbatus F 1.5 58 63 76 80 1950 1 110.0 RR Carcharhinus limbatus F 1.5 56 63 77 79 1923 1 110.0 RR Carcharhinus limbatus M 1.5 57 64 77 79 1922 1 111.0 RR Carcharhinus limbatus M 1.5 51 58 71 73 1925 1 111.0 RR Carcharhinus limbatus F 1.5 56 62 74 78 1924 1 112.0 RR Carcharhinus limbatus F 1.5 58 65 80 82 1926 1 113.0 RR Carcharhinus isodon F 2 58 64 78 80 1928 1 113.0 RR Carcharhinus isodon M 2 71 79 97 99 1929 1 113.0 RR Carcharhinus leucas M 2 68 76 92 95 1927 1 114.0 RR Carcharhinus limbatus F 1.5 51 57 70 71 1930 1 115.0 RR Carcharhinus limbatus M 1.5 53 59 71 73 1931 1 115.1 RR Carcharhinus limbatus F 1.5 50.5 56 68 70 2126 1 116.0 RR Carcharhinus limbatus M 1.5 59 65 79 81 1932 1 116.0 RR Carcharhinus isodon M 1.5 52 58 72 73 1934 1 116.0 RR Carcharhinus limbatus M 1.5 57 64 78 80 1933 1 117.0 RR Carcharhinus limbatus F 1.5 56 63 77 79 1935 1 117.1 RR Carcharhinus limbatus F 1.5 58 64 79 81 2135 1 118.0 RR Carcharhinus limbatus F 1.5 59 65 80 82 1938 1 118.0 RR Carcharhinus limbatus M 2 72 80 98 100 1937 1 118.0 RR Carcharhinus limbatus M 1.5 60 67 81 83 1936 1 118.0 RR Carcharhinus limbatus F 1.5 59 66 80 82 1939 1 118.0 RR Carcharhinus limbatus F 1.5 57 64 78 80 2136 1 118.0 RR Carcharhinus limbatus F 1.5 59 65 79 81 2137 1 119.0 RR Carcharhinus isodon M 2 56 62 76 78 2142 1 119.0 RR Carcharhinus limbatus M 1.5 54 61 74 76 2141 1 119.0 RR Carcharhinus limbatus F 1.5 55 62 75 77 2140 2 119.0 RR Carcharhinus limbatus F 1.5 49 54 65 67 2139 1 119.0 RR Carcharhinus isodon F 2 55 60 73 75 2138 1 120.0 RR Carcharhinus limbatus F 1.5 59 66 80 82 2127 1 121.0 RR Carcharhinus limbatus F 2 63 71 84 86 2143 1 122.0 RR Carcharhinus isodon M 2 58 65 78 80 1213 2 123.0 RR Carcharhinus isodon F 2 53 59 74 75 1215 1 123.0 RR Carcharhinus isodon F 2 46 52 67 69 1216 1 123.0 RR Carcharhinus leucas M 2 65 75 90 92 1217 1 123.0 RR Carcharhinus isodon F 2 55 61 75 76 1214 1 124.0 RR Carcharhinus isodon F 2 50 55 64 67 2134 1 125.0 RR Carcharhinus isodon F 2 50 55 64 67 2134 1 126.0 RR Carcharhinus plumbeus M 2 66 73 88 90 2144 2 126.0 RR Carcharhinus plumbeus F 2 71 78 95 97 2145 1 127.0 RR Carcharhinus limbatus F 1 39 44 55 57 1219 ~ 128.0 RR Carcharhinus leucas M 2 102 112 136 140 2146 3 129.0 RR Carcharhinus limbatus M 1 38 43 53 54 2147 1 129.0 RR Carcharhinus limbatus F 1.5 45 51 62 64 2148 1 129.0 RR Carcharhinus limbatus F 1 43 48 57 59 2149 1 130.0 RR Carcharhinus limbatus F 1 41 46 57 58 2150 1 131.0 RR Carcharhinus brevipinna M 1.5 56 61 75 76 2201 2 132.0 RR Carcharhinus limbatus F 1 40 45 54 56 2202 1 12

Table 3. Offshore sampling efforts for large sharks in Boca Grande and Florida Keys. Sample # Month Day Year Gear Location Latitude Longitude Depth (ft.) 2489.020 6 29 2001 DL C 1-Boca Grande Pass 26'43.0302N 82'16.3188W 15 2489.230 7 13 2001 DL C7-Charlotte Harbor 26'43.3320N 82'17.646W 23 2489.270 7 17 2001 DL C1-Boca Grande Pass 26'42.302N 82'16.108W 21 2489.260 7 17 2001 DL C1-Boca Grande Pass 26'42.353N 82'16.03W 24 2489.250 7 17 2001 DL C1-Boca Grande Pass 26'42.383N 82'15.974W 24 2489.240 7 17 2001 DL C1-Boca Grande Pass 26'42.462N 82'15.869W 30 2489.320 7 18 2001 DL C1-Boca Grande Pass 19.4 2489.310 7 18 2001 DL C1-Boca Grande Pass 26'42.533N 82'1 5.581W 21 2489.300 7 18 2001 DL C1-Boca Grande Pass 26'42.447N 82'1 5.809W 18 2489.290 7 18 2001 DL C1-Boca Grande Pass 26'42.324N 82'16.07W 21 2489.280 7 18 2001 DL C1-Boca Grande Pass 26'42.304N 82'16.211W 27 2499.130 7 25 2001 DL C1-Boca Grande Pass 26'42.06N 82'16.5720W 25 2499.120 7 25 2001 DL C1-Boca Grande Pass 26'42.1200N 82'16.5359W 24 2499.110 7 25 2001 DL C1 -Boca Grande Pass 26'42.06N 82'1 6.5720W 24 2499.100 7 25 2001 DL C1-Boca Grande Pass 26'42.1919N 82'1 6.4220W 28 2505.130 7 26 2001 DL C1-Boca Grande Pass 26'42N 82'1 6.722W 25 2505.120 7 26 2001 DL C1-Boca Grande Pass 26'41.97N 82'16.6319W 22 2505.110 7 26 2001 DL C1-Boca Grande Pass 26'42.1139N 82'16.4700W 24 2505.100 7 26 2001 DL C1-Boca Grande Pass 26'42.1139N 82' 16.4700W 24 2506.100 7 27 2001 DL C 1-Boca Grande Pass 26'42.5639N 82'16.5960W 23 2509.180 7 31 2001 DL C1-Boca Grande Pass 26'42.18N 82'16.4339W 26 2509.170 7 31 2001 DL C1-Boca Grande Pass 26'42.168N 82'16.4279W 24 2509.160 7 31 2001 DL C1-Boca Grande Pass 26'42.3779N 82'15.9840W 24 2509.150 7 31 2001 DL C1 -Boca Grande Pass 26'42.4860N 82'15.7800W 28 2509.200 8 1 2001 DL C1-Boca Grande Pass 26'42.2819N 82'1 6.1759W 22 2509.190 8 1 2001 DL C1-Boca Grande Pass 26'42.42N 82'1 5.8760W 22 2509.310 8 7 2001 DL C 1-Boca Grande Pass 26'42.0239N 82'17.1 539W 24 2509.300 8 7 2001 DL C1-Boca Grande Pass 26'42.0239N 82'17.1539W 24 2509.290 8 7 2001 DL C1-Boca Grande Pass 26'42.078N 82'1 6.8060W 30 2509.280 8 7 2001 DL C1-Boca Grande Pass 26'42.078N 82'1 6.8060W 30 2509.270 8 7 2001 DL C1-Boca Grande Pass 26'42.078N 82'16.8060W 30 2509.260 8 7 2001 DL C 1-Boca Grande Pass 26'42.078N 82'1 6.8060W 30 2509.250 8 7 2001 DL C 1-Boca Grande Pass 26'42.0959N 82'16. 5299W 24 2509.240 8 7 2001 DL C1 -Boca Grande Pass 26'42.258N 82'16.2479W 24 2509.230 8 7 2001 DL C 1-Boca Grande Pass 26'42.42N 82 '1 0.0260W 33 2509.220 8 7 2001 DL C 1-Boca Grande Pass 26'42.42N 82'10.0260W 33 2509.210 8 7 2001 DL C1 -Boca Grande Pass 26'42.42N 82'10.0260W 33 2509.420 8 8 2001 DL C1-Boca Grande Pass 26'41.604N 82'17.9040W 19 2509.410 8 8 2001 DL C1-Boca Grande Pass 26'41.604N 82'17.9040W 19 2509.400 8 8 2001 DL C1-Boca Grande Pass 26'41.7299N 82'17.6820W 19 2509.390 8 8 2001 DL C1-Boca Grande Pass 26'41.7299N 82'17.6820W 19 2509.380 8 8 2001 DL C1-Boca Grande Pass 26'41.8319N 82'1 7.1180W 19 2509.370 8 8 2001 DL C1-Boca Grande Pass 26'41.982N 82'17.0580W 25 2509.360 8 8 2001 DL C1-Boca Grande Pass 26'41.982N 82'17.0580W 25 2509.350 8 8 2001 DL C1-Boca Grande Pass 26'41.982N 82'17.0580W 25 2509.340 8 8 2001 DL C1-Boca Grande Pass 26'42.0480N 82'16.7399W 28 2509.330 8 8 2001 DL C1-Boca Grande Pass 26'42.252N 82'16.3019W 28 2509.320 8 8 2001 DL C1-Boca Grande Pass 26'42.45N 82'15.9300W 34 2509.460 8 9 2001 DL C1-Boca Grande Pass 26'42.3899N 82'16.0979W 29 2509.450 8 9 2001 DL C1-Boca Grande Pass 26'42.3899N 82'1 6.0979W ~ 9 2509.440 8 9 2001 DL C1-Boca Grande Pass 26'42.426N 82'1 5.9300W 30 2509.430 8 9 2001 DL C1-Boca Grande Pass 26'42.6000N 82'15.6839W 33 2512.010 8 10 2001 DL C1 -Boca Grande Pass 26'42.1 200N 82'1 6.5240W 25 2534.200 9 9 2001 DL C1-Boca Grande Pass 26'42.3269N 82'15.8153W 22 2554.500 10 2 2001 DL C 1-Boca Grande Pass 26'42.4625N 82'15.8507W 28 2554.400 10 2 2001 DL C1-Boca Grande Pass 26'42.3258N 82'16.1106W 22 2554.300 10 2 2001 DL C 1-Boca Grande Pass 26'42.4625N 82'15.8507W 28 2554.200 10 2 2001 DL C1-Boca Grande Pass 26'42.3912N 82'15.9665W 23 2554.700 10 3 2001 DL C1 -Boca Grande Pass 26'42.2664N 82'16.2455W 24 2554.600 10 3 2001 DL C1-Boca Grande Pass 26'42.36N 82'16.0553W 24 13

2554.800 10 4 2001 DL C1-Boca Grande Pass 26'42.1374N 82'1 6.3686W 23 2557.100 10 25 2001 DL C1-Boca Grande Pass 26'42.3768N 82'15.9918W 22 2561.030 11 13 2001 DL Keys-Nr Tarpon Belly Key 24'43.6277N 81 '31.5960W 8 2561.020 11 13 2001 DL Keys-Nr Tarpon Belly Key 24'43.7424N 81'31.6230W 9 2561.010 11 13 2001 DL Keys-Nr Tarpon Belly Key 24'43.8972N 81 '31.6937W 16 2561.050 11 14 2001 DL Keys-N of Sawyer Key - channel 24'45.5676N 81 '32.6291W 15 2561.040 11 14 2001 DL Keys-N of Sawyer Key - channel 24'45.72N 81'32.6766W 16 2561.070 11 15 2001 DL Keys-Carol's Reef 24'33.6839N 81'22.6860W 23 2561.060 11 15 2001 DL Keys-Carol's Reef 24'33.6300N 81'22.6739W 20 2561.080 11 16 2001 DL Keys-Racoon Key 24'44.358N 81 '30.1380W 15 2561.090 11 20 2001 DL Keys-American Shoal - coral/sg shoal 24'31.6980N 81 '30.7919W 19 2561.120 11 21 2001 DL Keys-Carol's Reef - edge 24'33.267N 81 '22.6188W 21 2561.110 11 21 2001 DL Keys-Carol's Reef - edge 24'33.141N 81 '22.8228W 23 2561.100 11 21 2001 DL Keys-Carol's Reef - edge 24'33.1362N 81'22.8059W 25 2561.170 11 27 2001 DL Keys-Tarpon Belly Key 24'43.7718N 81 '31.5726W 17 2561.160 11 27 2001 DL Keys-Tarpon Belly Key 24'43.9902N 81'31.7243W 20 2561.150 11 27 2001 DL Keys-Tarpon Belly Key 24'44.0022N 81 '31.7544W 20 2561.140 11 27 2001 DL Keys-Tarpon Belly Key 24'43.6686N 81 '31.5024W 13 2561.130 11 27 2001 DL Keys-Tarpon Belly Key 24'44.2919N 81'32.0411W 19 2561.240 11 30 2001 DL Keys-Bahia Honda-Bay Side-bridge 24'39.7128N 81'17.5805W 10.6 2561.230 11 30 2001 DL Keys-Bahia Honda-Bay Side-brige 24'39.678N 81 '17.6622W 9.1 2561.220 11 30 2001 DL Keys-Bahia Honda-Bay Side-bridge 24'39.7464N 81'17.4780W 13.5 2561.210 11 30 2001 DL Keys-Bahia Honda-Bay Side-bridge 24'39.7595N 81'17.3532W 17.4 2561.200 11 30 2001 DL Keys-Bahia Honda-Ocean Side-bridge 24'39.0816N 81'17.4845W 21 2561.190 11 30 2001 DL Keys-Bahia Honda-Ocean Side - bridge 24'39.2322N 81'17.2218W 25 2561.180 11 30 2001 DL Keys-Bahia Honda-Bay Side -bridge 24'39.774N 81'17.1029W 15.4 2561.270 12 1 2001 DL Keys-Bahia Honda-Mid&Ocean Side 24'39.0882N 81'17.3346W 27 2561.260 12 1 2001 DL Keys-Bahia Honda-Mid&Ocean Side 24'39.2423N 81 '17.133W 20 2561.250 12 1 2001 DL Keys-Bahia Honda - Btwn bridges 24'39.4602N 81'17.028W 13.5 2561.290 12 2 2001 DL Keys-Newfound Harbour 24'36.414N 81'23.5824W 24 2561.280 12 2 2001 DL Keys-Newfound Harbour 24'36.4416N 81 '22.8263W 28 2561.300 12 3 2001 DL Keys-Bunson Key 24'36.5466N 81 '23.5949W 24 2561.360 12 4 2001 DL Keys-Tarpon Belly Key 24'44.3448N 81 '32.1395W 17 2561.350 12 4 2001 DL Keys-Tarpon Belly Key 24'44.0592N 81 '31.7957W 17 2561.340 12 4 2001 DL Keys-Tarpon Belly Key 24'43.8821 N 81 '31.6548W 12 2561.330 12 4 2001 DL Keys-Tarpon Belly Key 24'44.1239N 81 '31.8378W 16 2561.320 12 4 2001 DL Keys-Tarpon Belly Key 24'44.286N 81 '32.0286W 16 2561.310 12 4 2001 DL Keys-Tarpon Belly Key 24'44.3526N 81 '32.1336W 16 2561.380 12 8 2001 DL Keys-Gulf - off Riding 24'47.2836N 81 '32.1671W 25 2561.370 12 8 2001 DL Keys-Gulf - off Riding 24'47.223N 81 '32.3220W 24 2561.400 12 9 2001 DL Keys-Tarpon Belly Key 24'44.2529N 81 '31.9973W 18 2561.390 12 9 2001 DL Keys-Tarpon Belly Key 24'44.2776N 81 '32.0148W 19 2561.420 12 10 2001 DL Keys-Tarpon Belly Key 24'44.4858N 81 '32.2410W 14 2561.410 12 10 2001 DL Keys-Tarpon Belly Key 24'44.1984N 81'31.9391W 19 2561.470 12 11 2001 DL Keys-Gunbar Wreck - on Sea Boots 2561.460 12 11 2001 DL Keys-Gunbar Wreck - on Sea Boots 2561.450 12 11 2001 DL Keys-Gunbar Wreck - on Sea Boots 2561.440 12 11 2001 DL Keys-Gunbar Wreck - on Sea Boots 24'34.2222N 81 '27.8531W 50 2561.430 12 11 2001 DL Keys-Gunbar Wreck - on Sea Boots 24'34.2654N 81 '27.9899W 50 2566.010 1 9 2002 DL Keys-Bahia Honda Bridge-between them 24'39.4103N 81 '17.1948W 19 2566.020 1 11 2002 DL Keys-Newfound Harbour 24'36.144N 81'22.5486W 27 2566.080 1 12 2002 DL Keys-Carol's Reef 24'33.3228N 81'22.0650W 22 2566.070 1 12 2002 DL Keys-Carol's Reef 24'33.5207N 81'22.3133W 21 2566.060 1 12 2002 DL Keys-Carol's Reef 24'33.1547N 81'22.5030W 33 2566.050 1 12 2002 DL Keys-Carol's Reef 24'33.1512N 81 '22.527W 33 2566.040 1 12 2002 DL Keys-Carol's Reef 24'33.3174N 81'22.3608W 2566.030 1 12 2002 DL Keys-Carol's Reef 24'33.0828N 81'22.9505W 2566.130 1 13 2002 DL Keys-Carol's Reef 24'33.6462N 81 '21.9731W 21 2566.120 1 13 2002 DL Keys-Carol's Reef 24'33.5424N 81'22.1832W 24 2566.110 1 13 2002 DL Keys-Carol's Reef 24'33.5424N 81'22.1 862W 24 2566.100 1 13 2002 DL Keys-Carol's Reef 24'33.3185N 81 '22.5803W 21 2566.090 1 13 2002 DL Keys-Carol's Reef 24'33.1512N 81 '22.8744W 18 2566.180 1 14 2002 DL Keys-Bahia Honda Bridge-Gulf side 24'39.741N 81 '17.5530W 13.6 2566.170 1 14 2002 DL Keys-Bahia Honda Bridge-Gulf side 24'39.7487N 81'17.0567W 15 2566.160 1 14 2002 DL Keys-Bahia Honda Bridge-Gulf side 24'39.708N 81'17.6153W 11.9 2566.150 1 14 2002 DL Keys-Bahia Honda Bridge-btwn brgs 24'39.4044N 81 '17.3849W 22 2566.140 1 14 2002 DL Keys-Bahia Honda Bridge-outside 24'39.2238N 81 '17.3730W 25 ~ ~ 14

2566.240 1 15 2002 DL Keys-Carel's Reef 24'33.3024N 81 '22.6452W 20.5 2566.230 1 15 2002 DL Keys-Carol's Reef 24'33.2051 N 81 '22.3331W 29 2566.220 1 15 2002 DL Keys-Carol's Reef 24'33.3030N 81 '22.2882W 25 2566.210 1 15 2002 DL Keys-Carol's Reef 24'33.1452N 81 '22.6145W 31 2566.200 1 15 2002 DL Keys-Carol's Reef 24'33.1206N 81 '22.7214W 32 2566.190 1 15 2002 DL Keys-Carel's Reef 24'33.1110N 81 '22.6709W 35 2566.270 1 17 2002 DL Keys-Carol's Reef 24'33.3077N 81'22.7430W 20.3 2566.260 1 17 2002 DL Keys-Carol's Reef 24'33.3006N 81 '22.5546W 21.9 2570.052 1 25 2002 DL Keys-Carol's Reef 24'33.2526N 81 '22.2354W 28 2570.051 1 25 2002 DL Keys-Carel's Reef 24'33.2034N 81 '22.4358W 28 2570.053 1 27 2002 DL Keys-Carol's Reef 24'33.2208N 81 '22.6566W 18 2570.057 2 3 2002 DL Keys-Carel's Reef 24'33.2484N 81 '22.5276W 16 2570.056 2 3 2002 DL Keys-Carol's Reef 24'33.1277N 81'22.9686W 25 2570.055 2 3 2002 DL Keys-Carel's Reef 24'33.2496N 81'22.4448W 23 2570.054 2 3 2002 DL Keys-Carol's Reef 24'33.3917N 81'22.7742W 19.1 2570.150 2 12 2002 DL Keys-Carol's Reef 24'33.366N 81 '23.1467W 20.9 2570.140 2 12 2002 DL Keys-Carel's Reef 24'33.1476N 81 '23.1204W 24.9 2570.130 2 12 2002 DL Keys-Carol's Reef 24'33.4566N 81'23.1275W 18 2570.160 2 13 2002 DL Keys-Carol's Reef 24'33.165N 81'23.1221W 25 2570.310 2 15 2002 DL Keys-Marquesa's South 24'31.6511N 81 '9.77519W 33.7 2570.300 2 15 2002 DL Keys-Marquesa's South 24'31.8312N 81 '9.92219W 19.6 2570.290 2 15 2002 DL Keys-Marquesa's South 24'31.6181N 81 '9.37979W 32.8 2570.280 2 15 2002 DL Keys-Marquesa's South 24'31.6938N 81 '9.40079W 33.1 2570.270 2 15 2002 DL Keys-Marquesa's South 24'31.7303N 81 '9.26040W 31.4 2570.260 2 15 2002 DL Keys-Marquesa's South 24'31.6938N 81 '9.42360W 32.8 2570.250 2 15 2002 DL Keys-Marquesa's South 24'31.812N 81 '9.29339W 30.8 2570.240 2 15 2002 DL Keys-Marquesa's South 24'31.6764N 81 '9. 70620W 33.1 2570.230 2 15 2002 DL Keys-Marquesa's South 24'31.6314N 81'9.4314W 33.4 2570.220 2 15 2002 DL Keys-Marquesa's South 24'31.5335N 81 '9.51719W 33.4 2570.210 2 15 2002 DL Keys-Marquesa's South 24'31.6374N 81 '9.22260W 32.4 2570.200 2 15 2002 DL Keys-Marquesa's South 24'31.8048N 81 '10.0055W 19 2570.190 2 15 2002 DL Keys-Marquesa's South 24'31.5845N 81 '9.65820W 34.1 2570.180 2 15 2002 DL Keys-Marquesa's South 24'31.8006N 81 '9.81779W 22.6 2570.170 2 15 2002 DL Keys-Marquesa's South 24'31.8576N 81 '10.0865W 20.6 2574.960 2 16 2002 DL Keys-Marquesa's South 24'31.8719N 81 '10.2756W 21.3 2574.950 2 16 2002 DL Keys-Marquesa's South 24'32.1612N 81 '1 0.6896W 17 2574.940 2 16 2002 DL Keys-Marquesa's South 24'31.6973N 81 '10.5239W 34.4 2574.930 2 16 2002 DL Keys-Marquesa's South 24'31.9032N 81 '10.3914W 24.6 2574.920 2 16 2002 DL Keys-Marquesa's South 24'31.7303N 81'10.3571W 34.1 2574.910 2 16 2002 DL Keys-Marquesa's South 24'31.7568N 81'10.1885W 31.4 2574.900 2 16 2002 DL Keys-Marquesa's South 24'31.8390N 81 '9.76800W 20 2574.890 2 16 2002 DL Keys-Marquesa's South 24'31.7748N 81 '1 0.3800W 32. 1 2574.880 2 16 2002 DL Keys-Marquesa's South 24'32.0664N 81 '1 0.5930W 19 2574.870 2 16 2002 DL Keys-Marquesa's South 24'31.7568N 81 '1 0.1885W 31.4 2574.860 2 16 2002 DL Keys-Marquesa's South 24'31.7496N 81'9.92999W 31.1 2574.850 2 16 2002 DL Keys-Marquesa's South 24'31.8719N 81'10.2756W 21.3 2574.840 2 16 2002 DL Keys-Marquesa's South 24'31.7748N 81 '10.0511W 30.1 2574.830 2 16 2002 DL Keys-Marquesa's South 24'31.77 48N 81'10.0511W 30.1 2574.820 2 16 2002 DL Keys-Marquesa's South 24'31.8203N 81'10.2527W 29.5 2574.810 2 16 2002 DL Keys-Marquesa's South 24'31.7352N 81'10.6734W 34.4 2574.994 2 17 2002 DL Keys-Marquesa's South 24'32.0244N 81'9.08820W 18.7 2574.993 2 17 2002 DL Keys-Marquesa's South 24'31.9824N 81'9.31019W 18.7 2574.992 2 17 2002 DL Keys-Marquesa's South 24'31.8198N 81 '9.25619W 30.8 2574.991 2 17 2002 DL Keys-Marquesa's South 24'31.8881 N 81 '9.33540W 24.9 2574.990 2 17 2002 DL Keys-Marquesa's South 24'31.9824N 81'9.31019W 18.7 2574.980 2 17 2002 DL Keys-Marquesa's South 24'31.8198N 81 '9.25619W 30.8 2574.970 2 17 2002 DL Keys-Marquesa's South 24'31.6980N 81 '8.93760W,4>30.5 2577.003 2 21 2002 DL Keys-Carol's Reef 24'33.3480N 81 '22.9103W 22 2577.002 2 21 2002 DL Keys-Carol's Reef 24'33.4500N 81 '22.3757W 21 2577.001 2 21 2002 DL Keys-Carol's Reef 24'33.2057N 81 '22.5635W 23 2577.009 2 22 2002 DL Keys-Carel's Reef 24'19.8882N 81 '13.8378W 24 2577.008 2 22 2002 DL Keys-Carol's Reef 24'22.8750N 81 '13.6349W 26 2577.007 2 22 2002 DL Keys-Carol's Reef 24'19.8738N 81 '13.6974W 22 2577.006 2 22 2002 DL Keys-Carol's Reef 24'19.821 N 81'13.8102W 30 2577.005 2 22 2002 DL Keys-Carol's Reef 24'19.821N 81'13.8102W 30 2577.004 2 22 2002 DL Keys-Carel's Reef 24'19.8768N 81'13.9014W 22 2580.600 4 2 2002 DL Keys-Carel's Reef - Patch Reef 24'33.366N 81 '22.6985W 21 15

2580.500 4 2 2002 DL Keys-Carol's Reef - Patch Reef 24'33.7758N 81 '22.3061W 22 2580.400 4 2 2002 DL Keys-Carol's Reef - Patch Reef 24'33.3359N 81 '22.9367W 22 2580.300 4 2 2002 DL Keys-Carol's Reef - Patch Reef 24'33.2700N 81 '23.1005W 24 2580.200 4 2 2002 DL Keys-Carol's Reef - Patch Reef 24'33.5616N 81 '22.6344W 20 2580.100 4 2 2002 DL Keys-Carol's Reef - Patch Reef 24'33.3359N 81 '22.7940W 22 2586.400 4 4 2002 DL Keys-Carol's Reef - Patch Reef 24'33.1740N 81 '23.1768W 24 2586.300 4 4 2002 DL Keys-Carol's Reef - Patch Reef 24'33.6227N 81'22.5419W 20 2586.200 4 4 2002 DL Keys-Carol's Reef - Patch Reef 24'33.3288N 81'22.9349W 21 2586.100 4 4 2002 DL Keys-Carol's Reef - Patch Reef 24'33.6227N 81'22.5419W 20 2589.008 4 14 2002 DL Keys-Bahia Honda - bridge 24'39.579N 81 '17.5092W 15 2589.007 4 14 2002 DL Keys-Bahia Honda - bridge 24'39.4308N 81 '17.3514W 28 2589.006 4 14 2002 DL Keys-Bahia Honda - bridge 24'39.3666N 81 '17.5049W 18 2589.005 4 14 2002 DL Keys-Bahia Honda - bridge 24'39.2243N 81 '17.2872W 25 2589.004 4 14 2002 DL Keys-Bahia Honda - bridge 24'39.5706N 81 '1 7.4089W 19 2589.003 4 14 2002 DL Keys-Bahia Honda - bridge 24'39.5706N 81 '17.4089W 19 2589.002 4 14 2002 DL Keys-Bahia Honda - bridge 24'39.2346N 81 '1 7.2056W 24 2589.001 4 14 2002 DL Keys-Bahia Honda - bridge 24'39.3642N 81 '17.0759W 17 2589.075 4 16 2002 DL Keys-Tarpon Belly - channel 24'44.3904N 81'32.235W 19 2589.074 4 16 2002 DL Keys-Tarpon Belly - channel 24'44.3142N 81 '32.0616W 17 2589.073 4 16 2002 DL Keys-Tarpon Belly - channel 24'44.3321 N 81 '32.1852W 18 2589.072 4 16 2002 DL Keys-Tarpon Belly - channel 24'43.3919N 81'31.7766W 18 2589.071 4 16 2002 DL Keys-Tarpon Belly - channel 24'44.0598N 81 '31.8263W 24 2589.091 4 17 2002 DL Keys-Tarpon Belly - channel 24'44.2440N 81'32.106W 15 2589.210 4 18 2002 DL Keys-Rock Humps 24'39.3760N 82'14.589W 45 2589.190 4 18 2002 DL Keys-Northwest Marquesas - flats 24'36.651N 82'9.17879W 9 2589.1 80 4 18 2002 DL Keys-Northstar Wreck 24'31.632N 82'1 3.3698W 36 2589.170 4 18 2002 DL Keys-Northwest Marquesas - flats 24'37.3129N 82'1 0.0020W 10 2589.160 4 18 2002 DL Keys-Northstar Wreck 24'31.6840N 82'13.3668W 35 2589.150 4 18 2002 DL Keys-Patricia Wreck 24'34.5289N 82'13.9800W 12 2589.140 4 18 2002 DL Keys-Patricia Wreck 24'34.4159N 82'1 4.0982W 12 2589.130 4 18 2002 DL Keys-Northstar Wreck 24'31.6530N 82'13.3158W 34 2589.120 4 18 2002 DL Keys-Northstar Wreck 24'31.632N 82'13.3698W 36 2589.110 4 18 2002 DL Keys-Northwest Marquesas - flats 24'36.8830N 82'9.41999W 10 2628.003 6 13 2002 DL C1-Boca Grande Pass 26'42.534N 82'15.418W 20 2628.005 6 13 2002 DL C1-Boca Grande Pass 26'42.612N 82'15.218W 20 2628.013 6 13 2002 DL C1-Boca Grande Pass 26'42.632N 82'14.745W 20 2628.023 6 13 2002 DL C1-Boca Grande Pass 26'43.077N 82'1 4.339W 20 2628.027 6 13 2002. DL C1-Boca Grande Pass 26'42.832N 82'14.266W 16 2628.029 6 14 2002 DL C1-Boca Grande Pass 26'42.480N 82'1 5.610W 15 2629.031 6 16 2002 DL C1-Boca Grande Pass 26'42.487N 82'1 5.687W 18 2639.023 6 20 2002 DL C1-Boca Grande Pass 26'42.446N 82'1 5814W 20 2640.011 6 21 2002 DL C1-Boca Grande Pass 26'42.645N 82'1 5.550W 34 2640.02 6 21 2002 DL C1-Boca Grande Pass 26'42.652N 82'15.151W 30 2640.023 6 21 2002 DL C1-Boca Grande Pass 26'42.381N 82'15.909W 16 2640.025 6 21 2002 DL C1-Boca Grande Pass 26'42.478N 82'1 5.651W 15 2640.057 6 23 2002 DL C1 -Boca Grande Pass 26'42.575N 82'15.344W 18 2640.058 6 23 2002 DL C1-Boca Grande Pass 26'42.602N 82'15.314W 25 Table 4. Sharks captured in fishery-independent offshore sampling in the Keys and Boca Grande. Sample Scientific Name Sex PCl Fl Tl STl Tag Electronic Tag Conaition # (cm) (cm) (cm) (cm) Number(s) 2489.020 Ginglymostoma eiffatum M 207 262 R0226 1 2489.230 Careharhinus aeronotus F 82 91 115 117 R0276 1 2489.240 Ginglymostoma eiffatum F 187 251 0 2489.250 Ginglymostoma ciffatum F 159 202 1 2489.260 Carcharhinus leueas F 198 218 245 254 J1186 1 2489.270 Sphyma mokaffan F 225 240 315 R0250 I R0268 0 2489.280 Careharhinus aeronotus F 75 83 102 104 R0277 1 2489.290 Carcharhinus Iimbatus F 126 140 165 171 J1177 Transmitter #5251 34.5 1 2489.300 Carcharhinus aero notus F 76 84 103 105 R0282 I R0281 1 16