Abstract
Shrimp Pandalus goniurus is poorly known in the Tatar Strait. Its distribution, state of stock, and features of biology are described on the data of 7 trawl surveys conducted by RV Buhoro in the western Tatar Strait in April-June 2009-2010 (227 trawls) and September-October 2011-2014 (589 trawls) and commercial catches obtained by fishing vessel Sovetskoye in May 2014 (50 trawls) and April 2015 (59 trawls). Horizontal opening of the scientific and commercial trawls was 16 and 35 m, respectively. About 14,000 individuals of the shrimp were subjected to biological analysis. P. goniurus was distributed along the whole continental coast of the strait northward from 47°20′ N and in spring concentrated at the depth from 50 to 120 m, rarely to 270-300 m, with single findings down to 340 m. Its stock fluctuated from 16 to 70 thousand t, on average 45,000 t (50-70 % within the territorial waters); possible annual catch was estimated as 5,000 t. Commercial fishery of this species was started in 2014 (mean CPUE 1.91 t/hour), the number of fishing vessels increased to 3 in 2015 (mean CPUE 3.26 t/hour, total landing 1160 t). The fishery is distinguished by easy hydroacoustic search of aggregations, long-time fishing within limited areas, high catches, including the catches in nighttime, and low bycatch. The highest concentration of P. goniurus was registered in April 2015: CPUE 11.86 t/hour, density 73.2 t/km 2 or 10 ind./m 2 . Size-weight parameters of P. goniurus in the Tatar Strait were the best for all its populations: their average values in commercial catches in 2014/2015 were: carapace length 20.4/22.4 mm, individual weight 5.7/7.4 g or 165/116 ind./kg. Its larvae hatching was observed in April-May, mass post-hatching molt of females was supposedly in June-July and breeding molt and spawning - in September-October. First results of the fishery are analyzed, its prospects are estimated, and measures for its regulation are proposed.
Highlights
Представлены материалы по углохвостой креветке Pandalus goniurus, собранные в западной части Татарского пролива во время учетных съемок на РКМРТ «Бухоро» в 2009–2014 гг. и ее промысла, проведенного СТР «Советское» в территориальных водах района весной 2014 и 2015 гг
Shrimp Pandalus goniurus is poorly known in the Tatar Strait
State of stock, and features of biology are described on the data of 7 trawl surveys conducted by RV Buhoro in the western Tatar Strait in April-June 2009–2010 (227 trawls) and September-October 2011–2014 (589 trawls) and commercial catches obtained by fishing vessel Sovetskoye in May 2014 (50 trawls) and April 2015 (59 trawls)
Summary
РАСПРЕДЕЛЕНИЕ, ЗАПАСЫ, ОСОБЕННОСТИ БИОЛОГИИ УГЛОХВОСТОЙ КРЕВЕТКИ PANDALUS GONIURUS. Представлены материалы по углохвостой креветке Pandalus goniurus, собранные в западной части Татарского пролива во время учетных съемок на РКМРТ «Бухоро» в 2009–2014 гг. Its stock fluctuated from 16 to 70 thousand t, on average 45,000 t (50–70 % within the territorial waters); possible annual catch was estimated as 5,000 t Commercial fishery of this species was started in 2014 (mean CPUE 1.91 t/hour), the number of fishing vessels increased to 3 in 2015 (mean CPUE 3.26 t/hour, total landing 1160 t). Большая часть исследований углохвостой креветки выполнена в Беринговом море, где были обнаружены ее уникальные по запасам и концентрации ресурсы (Згуровский, Иванов, 1982; Иванов, Столяренко, 1992; Исупов, 1999; Андронов, 2004; и др.) Описаны распределение и особенности биологии вида в Охотском море (Михайлов и др., 2003; Бандурин, 2007). В Татарском проливе был впервые организован траловый промысел углохвостой креветки на СТР «Советское». Цель настоящей работы — описать распределение, состояние запасов и некоторые черты биологии углохвостой креветки в западной части Татарского пролива, охарактеризовать промысловую обстановку в 2014–2015 гг., обсудить дальнейшие перспективы специализированного промысла креветки и меры его регулирования
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