渔业科学进展
漁業科學進展
어업과학진전
MARINE FISHERIES RESEARCH
2015年
4期
1-9
,共9页
李显森%张吉昌%赵宪勇%左涛%朱建成%王新良%徐国栋%孟涛%徐玉成%张鹏%应一平%孙珊
李顯森%張吉昌%趙憲勇%左濤%硃建成%王新良%徐國棟%孟濤%徐玉成%張鵬%應一平%孫珊
리현삼%장길창%조헌용%좌도%주건성%왕신량%서국동%맹도%서옥성%장붕%응일평%손산
南极磷虾%拖网调查%CPUE指数%时空分布
南極燐蝦%拖網調查%CPUE指數%時空分佈
남겁린하%타망조사%CPUE지수%시공분포
Antarctic krill%Trawl survey%CPUE index%Spatiotemporal distribution
根据2013年1–9月辽宁远洋渔业有限公司“福荣海”轮南极磷虾拖网调查数据，以3n mile/h拖曳获得的产量作为 CPUE 指标，对南极磷虾资源时空分布进行了分析。结果显示，1–6月的月均CPUE 值相对稳定，7–9月逐月下降。各渔区中平均 CPUE 值以48.1区最高，为(25.12±31.04) t/h；48.3区最低，为(11.49±12.06) t/h；CPUE 值的波动幅度48.1区大于48.2和48.3区。48.1区的南极磷虾群主要分布于0–100 m 水层，CPUE 值以25–50 m 水层为最高；48.2区虾群主要分布于50–150 m水层，CPUE 值以100–150 m 水层最高；48.3区虾群主要分布于100–250 m 水层，CPUE 值以200–250 m 水层最高。海底深度<500 m 的近岸海域是磷虾主要集群分布区和商业捕捞渔场，以水深<250 m 的浅水区渔场虾群密度最大，平均 CPUE 值为(17.54±35.26) t/h，水深250–1500 m 的深水区渔场平均CPUE 值变化较小，在12.0–14.0 t/h 之间波动，但水深>1500 m 时，平均 CPUE 值降到(9.62±9.54) t/h。作业渔场的表温 SST 主要集中在－1–2℃，当 SST 为－1–0℃时，平均 CPUE 值最高。探捕调查发现了5个主要的磷虾集群，集群时间可达30 d 以上，但集群密度随时间发生变化。调查结果可为研究南极磷虾渔场形成机制和渔业管理提供基础数据，并为商业捕捞提供参考。
根據2013年1–9月遼寧遠洋漁業有限公司“福榮海”輪南極燐蝦拖網調查數據，以3n mile/h拖抴穫得的產量作為 CPUE 指標，對南極燐蝦資源時空分佈進行瞭分析。結果顯示，1–6月的月均CPUE 值相對穩定，7–9月逐月下降。各漁區中平均 CPUE 值以48.1區最高，為(25.12±31.04) t/h；48.3區最低，為(11.49±12.06) t/h；CPUE 值的波動幅度48.1區大于48.2和48.3區。48.1區的南極燐蝦群主要分佈于0–100 m 水層，CPUE 值以25–50 m 水層為最高；48.2區蝦群主要分佈于50–150 m水層，CPUE 值以100–150 m 水層最高；48.3區蝦群主要分佈于100–250 m 水層，CPUE 值以200–250 m 水層最高。海底深度<500 m 的近岸海域是燐蝦主要集群分佈區和商業捕撈漁場，以水深<250 m 的淺水區漁場蝦群密度最大，平均 CPUE 值為(17.54±35.26) t/h，水深250–1500 m 的深水區漁場平均CPUE 值變化較小，在12.0–14.0 t/h 之間波動，但水深>1500 m 時，平均 CPUE 值降到(9.62±9.54) t/h。作業漁場的錶溫 SST 主要集中在－1–2℃，噹 SST 為－1–0℃時，平均 CPUE 值最高。探捕調查髮現瞭5箇主要的燐蝦集群，集群時間可達30 d 以上，但集群密度隨時間髮生變化。調查結果可為研究南極燐蝦漁場形成機製和漁業管理提供基礎數據，併為商業捕撈提供參攷。
근거2013년1–9월료녕원양어업유한공사“복영해”륜남겁린하타망조사수거，이3n mile/h타예획득적산량작위 CPUE 지표，대남겁린하자원시공분포진행료분석。결과현시，1–6월적월균CPUE 치상대은정，7–9월축월하강。각어구중평균 CPUE 치이48.1구최고，위(25.12±31.04) t/h；48.3구최저，위(11.49±12.06) t/h；CPUE 치적파동폭도48.1구대우48.2화48.3구。48.1구적남겁린하군주요분포우0–100 m 수층，CPUE 치이25–50 m 수층위최고；48.2구하군주요분포우50–150 m수층，CPUE 치이100–150 m 수층최고；48.3구하군주요분포우100–250 m 수층，CPUE 치이200–250 m 수층최고。해저심도<500 m 적근안해역시린하주요집군분포구화상업포로어장，이수심<250 m 적천수구어장하군밀도최대，평균 CPUE 치위(17.54±35.26) t/h，수심250–1500 m 적심수구어장평균CPUE 치변화교소，재12.0–14.0 t/h 지간파동，단수심>1500 m 시，평균 CPUE 치강도(9.62±9.54) t/h。작업어장적표온 SST 주요집중재－1–2℃，당 SST 위－1–0℃시，평균 CPUE 치최고。탐포조사발현료5개주요적린하집군，집군시간가체30 d 이상，단집군밀도수시간발생변화。조사결과가위연구남겁린하어장형성궤제화어업관리제공기출수거，병위상업포로제공삼고。
Based on the trawl survey data of krill (Euphausia superba) fishery from the vessel“FURONGHAI” in 2012/2013 fishing season, the temporal and spatial distribution of krill resources were analyzed with the index of CPUE which was standardized as the yield of 3 n mile drag distance in one hour. The results showed that the monthly average of CPUE was relatively stable from January to June, but declined after July. The mean CPUE on sub-area 48.1 was the highest with (25.12 ± 31.04) t/h, and the lowest mean CPUE was on sub-area 48.3 with (11.49 ± 12.06) t/h. The change of net CPUE was greater in sub-area 48.1 than those in sub-area 48.2 and 48.3. Antarctic krill aggregated mainly in the depth of 0-100 m in sub-area 48.1 with the highest CPUE in 25-50 m layer, but they gathered in sub-area 48.2 mainly in 50-150 m layer with the highest CPUE in 100-150 m layer and in sub-area 48.3 mainly in 100-250 m layer with the highest CPUE in 200-250 m layer. Antarctic krill aggregations were mainly found in the coastal areas less than 500 m in depth which were formed as commercial fishing grounds, and the highest population density was in shallow water of 250 m with the CPUE of (17.54 ± 35.26) t/h. The average CPUE was lightly changed between 12–14 t/h in the grounds of 250–1500 m in depth, and the average CPUE was decreased to (9.62±9.54) t/h while the grounds was more than 1500 m in depth. The ground SST was mainly between –1–2℃, and the average CPUE was higher when the SST was in the range of –1–0℃. There were 5 major aggregations found in this survey, which could last more than 2 months with various densities over time. These results provide the basic data for searching Antarctic krill fishing ground and fisheries management, and provide some reference for commercial fishing as well.
