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DOI | 10.1111/fog.12418 |
Environmental associations of Pacific bluefin tuna (Thunnus orientalis) catch in the California Current system | |
Runcie, Rosa M.1; Muhling, Barbara2,3; Hazen, Elliott L.4; Bograd, Steven J.4; Garfield, Toby3; DiNardo, Gerard3 | |
发表日期 | 2019 |
ISSN | 1054-6006 |
EISSN | 1365-2419 |
卷号 | 28期号:4页码:372-388 |
英文摘要 | We investigate the impact of oceanographic variability on Pacific bluefin tuna (Thunnus orientalis: PBF) distributions in the California Current system using remotely sensed environmental data, and fishery-dependent data from multiple fisheries in a habitat-modeling framework. We examined the effects of local oceanic conditions (sea surface temperature, surface chlorophyll, sea surface height, eddy kinetic energy), as well as large-scale oceanographic phenomena, such as El Nino, on PBF availability to commercial and recreational fishing fleets. Results from generalized additive models showed that warmer temperatures of around 17-21 degrees C with low surface chlorophyll concentrations (<0.5 mg/m(3)) increased probability of occurrence of PBF in the Commercial Passenger Fishing Vessel and purse seine fisheries. These associations were particularly evident during a recent marine heatwave (the "Blob"). In contrast, PBF were most likely to be encountered on drift gillnet gear in somewhat cooler waters (13-18 degrees C), with moderate chlorophyll concentrations (0.5-1.0 mg/m(3)). This discrepancy was likely a result of differing spatiotemporal distribution of fishing effort among fleets, as well as the different vertical depths fished by each gear, demonstrating the importance of understanding selectivity when building correlative habitat models. In the future, monitoring and understanding environmentally driven changes in the availability of PBF to commercial and recreational fisheries can contribute to the implementation of ecosystem approaches to fishery management. |
WOS研究方向 | Fisheries ; Oceanography |
来源期刊 | FISHERIES OCEANOGRAPHY |
文献类型 | 期刊论文 |
条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/99425 |
作者单位 | 1.NOAA, Ocean Associates Inc, Southwest Fisheries Sci Ctr, Natl Marine Fisheries Serv, La Jolla, CA 92037 USA; 2.Univ Calif Santa Cruz, Cooperat Inst Marine Ecosyst & Climate, Santa Cruz, CA 95064 USA; 3.NOAA, Southwest Fisheries Sci Ctr, Natl Marine Fisheries Serv, La Jolla, CA USA; 4.NOAA, Southwest Fisheries Sci Ctr, Natl Marine Fisheries Serv, Monterey, CA USA |
推荐引用方式 GB/T 7714 | Runcie, Rosa M.,Muhling, Barbara,Hazen, Elliott L.,et al. Environmental associations of Pacific bluefin tuna (Thunnus orientalis) catch in the California Current system[J],2019,28(4):372-388. |
APA | Runcie, Rosa M.,Muhling, Barbara,Hazen, Elliott L.,Bograd, Steven J.,Garfield, Toby,&DiNardo, Gerard.(2019).Environmental associations of Pacific bluefin tuna (Thunnus orientalis) catch in the California Current system.FISHERIES OCEANOGRAPHY,28(4),372-388. |
MLA | Runcie, Rosa M.,et al."Environmental associations of Pacific bluefin tuna (Thunnus orientalis) catch in the California Current system".FISHERIES OCEANOGRAPHY 28.4(2019):372-388. |
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