Alexander I. Glubokov

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1 Alexander I. Glubokov

Chart of methods to study the North Bering Sea pollock Genetic studies Ichtyoplankton surveys New techniques Bottom trawl surveys Echointegration trawl surveys

pollock Spawning Feeding Prewintering Genetic studies Ichtyoplankton surveys Bottom trawl surveys Echointegration trawl surveys Conventional techniques Recruitment

2 Chart of methods to study the North Bering Sea pollock Genetic studies Ichtyoplankton surveys New techniques Bottom trawl surveys Echointegration trawl surveys Recruitment trawl surveys Knowledge of seasonal migrations and biology data on stability of spawning grounds, clear picture of the population structure of Bering Sea pollock Spawning Feeding Prewintering Genetic studies Ichtyoplankton surveys Bottom trawl surveys Echointegration trawl surveys Conventional techniques Recruitment trawl surveys No data on seasonal migrations, stability of spawning grounds, conflicting data on Bering Sea pollock population structure Once a year Repeated during the year Not annual

3 1998 October- December JMT «Kaie-maru 28» Bottom trawl, echo-integration trawl surveys D.O.Alekseev 1, S.M.Goncharov 1 List of cruises and types of work the results of which were used 1999 June-August JMT «Kaie-maru 28» Bottom trawl, recruitment trawl surveys V.A. Bizikov 1, A.I.Glubokov August-October JMT «Kaie-maru 28» Bottom trawl survey A.A. Bonk 2, Y.A Fedorets November- December JMT «Kaie-maru 28» Bottom trawl, recruitment trawl surveys D.O.Alekseev 1, V.A. Bizikov April-May RTMS «Novokievka» Ichthyoplancton survey A.M.Privalihin 1, A.V.Startsev 3 Totally: 2000 June-August JMT «Kaie-maru 28» Bottom trawl, recruitment trawl surveys D.O.Alekseev 1, A.I.Glubokov September- JMT «Kaie-maru 28» Bottom trawl, echo-integration trawl surveys S.B.Popov 1, October D.A.Terentiev 2 over 50 months duration 2000 November- JMT «Kaie-maru 28» Bottom trawl, recruitment trawl surveys S.V.Moiseev 1, December E.V.Slobodskoy April-May trawl BMTR «Nikolay surveys Chepik» Ichthyoplancton survey I.N.Kireev 2, A.V.Hodokhov May-July JMT «Kaie-maru 28» Bottom trawl, recruitment trawl surveys A.I.Glubokov 1, Y.A Fedorets 3 11 echointagration trawl surveys 2001 July-August BMRT «Haiduk» Ichthyoplancton survey V.I.Kudriavtsev 1, G.V.Norvillo August-October JMT «Kaie-maru 28» Bottom trawl, recruitment trawl surveys D.O.Alekseev 1, 8 recruitment trawl surveys R.N.Novikov October- JMT «Kaie-maru 28» Bottom trawl, echo-integration surveys S.B.Popov 1, December D.A.Terentiev March-April ichthyoplankton JMT «Kaie-maru 28» Ichthyoplancton survey surveys D.O.Alekseev 1, A.I.Glubokov August-October JMT «Kaie-maru 28» Bottom trawl, recruitment trawl surveys A.O. Zolotov October- December JMT «Kaie-maru 28» Bottom trawl, echo-integration trawl, recruitment trawl surveys A.A.Bonk 2, S.B.Popov October- November BATM «Pioner Nikolaeva» Bottom trawl, echo-integration trawl, mid-layer trawl surveys A.I.Glubokov 1, S.B.Popov October- November RTMS «Bagration» mid-layer trawl surveys A.A. Balanov 4, A.V.Buslov 2, A.O. Zolotov 2, G.V.Norvillo 1, 1

4 Area of studies

5 Spatial distribution of pollock in periods of low and medium abundance Concentration: 1 - Olyutor Karagin; 2 - Koryak; 3 - Navarin; 4 - Matveev; 5 - Pribiloff; 6 - Unimak-Bristol

6 Migration routes of navarin pollock (late 20-th and early 21-st centuries)

7 Migration routes of pollock in Karagin subzone in 1970-s.

8 Spatial differentiation of the main spawning grounds of pollock in the Bering Sea (after Stepanenko,, 2003; Bulatov,, 2004; Glubokov,, 2005) - main spawning grounds; Roman numbers months of intensive spawning

9 b length,cm length, cm North and West Bering Sea pollock ogyvas,, by areas (author s s data). share of mature, % share of mature, % share of mature,% share of mature, % Olyutor females Olyutor males le ng th,cm Navarin самки Наварин females Navarin самцы males Наварин Olyutor самки Олютор females Olyutor самцы males Олютор length,cm самки Navarin Наварин females самцы Navarin Наварин males самки Олютор самцы Олютор самки Koryak Коряк females самцы Koryak Коряк males Olyutor females Olyutor males

10 Cubic condition index by Clark in mature pollock,, by area and year 0,66 Cubic condition index 0,62 0,58 0,54 XI-XII 1998 VI 1999 XI-XII 1999 VII 2000 VI-VII 2001 VIII 2001 IV 2002 navarin region koryak region olyutor region

11 Gonadosomatic index in mature pollock in October November 2003 in northern and western regions of the North Pacific 11 GSI, % females navarin region kronotskiy bay males olyutor region

12 Gonadosomatic index in females (A) and males (B) of pollock from various areas of the North and East Bering Sea, by age (July 2004) A B

13 Hepatosomatic index in mature female pollock in the early feeding period in the Northwest Bering Sea, by area 10 8 HSI, % VI 98 VII 98 VI 99 VII 00 VI 01 VII 01 navarin region koryak region olyutor region

14 Pollock genetic sampling sites,

15 Unrooted Nei genetic distance tree between various concentrations of pollock North Kuril East Bering Sea Karagin Bay Navarin Olyutor Bay 0,1 Shirshov Ridge

16 Scheme of pollock population structure in the North Bering Sea and adjacent waters - stock nucleus; - main migration routes; - migration routes in periods of high abundance; - population range in periods of high abundance.

426 Common Chaffinch. Put your logo here. COMMON CHAFFINCH (Fringilla coelebs) IDENTIFICATION

426 Common Chaffinch. Put your logo here. COMMON CHAFFINCH (Fringilla coelebs) IDENTIFICATION Summer. Adult. Male (01-VI). COMMON CHAFFINCH (Fringilla coelebs) IDENTIFICATION 14-16 cm. Male with head and neck grey; breast and cheeks pinkish, duller in winter. Female and juveniles brownish. Both