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동중국해에 분포하는 물가자미(Eopsetta grigorjewi)의 연령과 성장
김영혜 ( Yeong Hye Kim ),김영섭 ( Young Seop Kim ),강현정 ( Hyun Jung Kang ),김진구 ( Jin Koo Kim ),전영열 ( Young Yull Chun ) 한국어류학회 2011 韓國魚類學會誌 Vol.23 No.1
물가자미의 표본은 동중국해 및 동해에서 중형 외끌이기선저인망에 의해 2004년 2월부터 2005년 1월까지 어획된 것이다. 총 389개체 표본의 오른쪽 이석을 연령형질로 사용하여 연령과 성장을 추정하였다. 윤문은 12~3월(주형성시기 2월), 연 1회 형성되는 것으로 나타났다. 산란시기는 2~4월(주산란시기 3월)이었다. 전장과 전중과의 상대성장식은 TW=0.5091×10(-2)TL(3.222)(r2=0.92)로 나타났고, 암·수간의 상대성장식 유의한 차이가 없는 것으로 나타났다(P>0.05). 추정된 von Bertalanffy 성장식은 L1=46.58(1-e(-0.14(t+1.32)))로 추정되었다. 암·수간의 연령별 성장에는 차이가 없는 것으로 나타났다(P>0.05). Age and growth of shotted halibut Eopsetta grigorjewi were estimated using right sagittal otoliths of 389 fish specimens from February 2004 to January 2005 in the East China Sea. Examination of outer margins of the otolith showed that the opaque zone was formed once a year and annual rings were formed from December to March. The age of specimens examined ranged from 3 to 5 years. Shotted halibut begin spawning in February and show a peak in March. Length and weight relationships showed no significant difference between females and males (P>0.05), and can be expressed as TW=0.5091×10(-2)TL(3.222)(r2=0.92). Estimated von Bertalanffy growth curve was Lt=46.58(1-e(-0.14(t+1.32))).
동해안 도루묵, Arctoscopus japonicus의 회유와 분포변동 특성
양재형 ( Jae Hyeong Yang ),이성일 ( Sung Il Lee ),박기영 ( Kie Young Park ),윤상철 ( Sang Chul Yoon ),김종빈 ( Jong Bin Kim ),전영열 ( Young Yull Chun ),김상우 ( Sang Woo Kim ),이재봉 ( Jae Bong Lee ) 한국어업기술학회 2012 수산해양기술연구 Vol.48 No.4
Distribution pattern and fishing conditions of sandfish, Arctoscopus japonicus in the East Sae were explored using catch and catch per unit effort (CPUE) by eastern sea Danish seine and coastal gill net fisheries from 2004 to 2008. A. japonicus was one of major target species for the eastern sea Danish seine and coastal gill net fisheries in the East Sea, which were caught from April to October for the eastern Danish seine, and from October to December for the coastal gill net, respectively. In recent, the distribution and centroid of fishing ground moved northward, as seawater temperature increased. The species spawned in the coastal areas of Gangwon, northern East Sea, during winter, started to move to deeper water after spawning from spring, extended widely from Gangwon to Ulsan, southern East Sea, during summer, and migrated back to the spawning ground off Gangwon during autumn.