Fishery catch is affected by geographic expansion, fishing down food webs and climate change in Aotearoa, New Zealand
文献类型：期刊论文
| 作者 | Lavin, Charles Patrick1; Pauly, Daniel2; Dimarchopoulou, Donna3,4; Liang, Cui5; Costello, Mark John1 |
| 刊名 | PEERJ
 |
| 出版日期 | 2023-09-21 |
| 卷号 | 11页码:27 |
| ISSN号 | 2167-8359 |
| 关键词 | New Zealand Fisheries Ocean warming Mean trophic level Mean temperature of the catch Fishing down marine food webs Fishing-in-Balance index |
| DOI | 10.7717/peerj.16070 |
| 通讯作者 | Lavin, Charles Patrick(charles.p.lavin@nord.no) |
| 英文摘要 | Historical fishing effort has resulted, in many parts of the ocean, in increasing catches of smaller, lower trophic level species once larger higher trophic level species have been depleted. Concurrently, changes in the geographic distribution of marine species have been observed as species track their thermal affinity in line with ocean warming. However, geographic shifts in fisheries, including to deeper waters, may conceal the phenomenon of fishing down the food web and effects of climate warming on fish stocks. Fisheries-catch weighted metrics such as the Mean Trophic Level (MTL) and Mean Temperature of the Catch (MTC) are used to investigate these phenomena, although apparent trends of these metrics can be masked by the aforementioned geographic expansion and deepening of fisheries catch across large areas and time periods. We investigated instances of both fishing down trophic levels and climate-driven changes in the geographic distribution of fished species in New Zealand waters from 1950-2019, using the MTL and MTC. Thereafter, we corrected for the masking effect of the geographic expansion of fisheries within these indices by using the Fishing-in-Balance (FiB) index and the adapted Mean Trophic Level (aMTL) index. Our results document the offshore expansion of fisheries across the New Zealand Exclusive Economic Zone (EEZ) from 1950-2019, as well as the pervasiveness of fishing down within nearshore fishing stock assemblages. We also revealed the warming of the MTC for pelagic-associated fisheries, trends that were otherwise masked by the depth-and geographic expansion of New Zealand fisheries across the study period. |
| WOS关键词 | TOP-DOWN ; MARINE ; OCEAN ; SIZE |
| WOS研究方向 | Science & Technology - Other Topics |
| 语种 | 英语 |
| 出版者 | PEERJ INC |
| WOS记录号 | WOS:001080095000005 |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/181667]  |
| 专题 | 海洋研究所_海洋生态与环境科学重点实验室 |
| 通讯作者 | Lavin, Charles Patrick |
| 作者单位 | 1.Nord Univ, Fac Biosci & Aquaculture, Bodo, Norway 2.Univ British Columbia, Inst Ocean & Fisheries, Sea Around Us, Vancouver, BC, Canada 3.Dalhousie Univ, Biol Dept, Halifax, NS, Canada 4.Woods Hole Oceanog Inst, Biol Dept, Woods Hole, MA USA 5.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Ecol & Environm Sci, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lavin, Charles Patrick,Pauly, Daniel,Dimarchopoulou, Donna,et al. Fishery catch is affected by geographic expansion, fishing down food webs and climate change in Aotearoa, New Zealand[J]. PEERJ,2023,11:27. |
| APA | Lavin, Charles Patrick,Pauly, Daniel,Dimarchopoulou, Donna,Liang, Cui,&Costello, Mark John.(2023).Fishery catch is affected by geographic expansion, fishing down food webs and climate change in Aotearoa, New Zealand.PEERJ,11,27. |
| MLA | Lavin, Charles Patrick,et al."Fishery catch is affected by geographic expansion, fishing down food webs and climate change in Aotearoa, New Zealand".PEERJ 11(2023):27. |
入库方式： OAI收割
来源：海洋研究所
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