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| DOI | 10.3354/meps14485 |
| Size-fractioned zooplankton biomass in the Barents Sea: macroecological patterns across biogeography, climate, and varying ecosystem state (1989-2020) | |
| 发表日期 | 2024 |
| ISSN | 0171-8630 |
| EISSN | 1616-1599 |
| 起始页码 | 726 |
| 卷号 | 726 |
| 英文摘要 | The zooplankton community in the Barents Sea was monitored during autumn cruises from 1989-2020, with biomass determined as the depth-integrated dry weight (g m(-2)) of 3 size fractions (>2 mm, 1-2 mm, <1 mm). A large data set of 4543 sampling stations encompassing a subdivision of the Barents Sea was spatially averaged into 15 polygons based on topography. The resulting data set is used to describe relationships between the biomass of size fractions as expressions of the size structure of the zooplankton communities. Each of the 3 size fractions was positively related to the total zooplankton biomass (sum of fractions). The medium size fraction, which contained on average 48% of the total biomass, showed a strong linear correlation with total biomass (R-2 approximate to 0.8). The medium fraction contained the older copepodite stages of Calanus species (C. finmarchicus and C. glacialis), which are dominant species interpreted to drive the overall changes in zooplankton biomass. The biomass of the small size fraction decreased with decreasing total biomass, but less so than the medium fraction. Thus, the small/medium biomass ratio increased as the total biomass decreased. This trend was most pronounced for shallow and central polygons, which coincide with the core feeding area of the large Barents Sea stock of capelin Mallotus villosus. The change in the small/medium biomass ratio is interpreted to reflect a shift from Calanus to smaller zooplankton in response to predation by capelin and other planktivorous predators, and possibly also by warming due to climate change. |
| 英文关键词 | Calanus; Capelin; Climate change; Fish predation; Marine ecosystem; Plankton dynamics; Size fractions; Zooplankton biomass |
| 语种 | 英语 |
| WOS研究方向 | Environmental Sciences & Ecology ; Marine & Freshwater Biology ; Oceanography |
| WOS类目 | Ecology ; Marine & Freshwater Biology ; Oceanography |
| WOS记录号 | WOS:001183510500002 |
| 来源期刊 | MARINE ECOLOGY PROGRESS SERIES
 |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/289786 |
| 作者单位 | Institute of Marine Research - Norway; Universitat Greifswald |
| 推荐引用方式 GB/T 7714 | . Size-fractioned zooplankton biomass in the Barents Sea: macroecological patterns across biogeography, climate, and varying ecosystem state (1989-2020)[J],2024,726. |
| APA | (2024).Size-fractioned zooplankton biomass in the Barents Sea: macroecological patterns across biogeography, climate, and varying ecosystem state (1989-2020).MARINE ECOLOGY PROGRESS SERIES,726. |
| MLA | "Size-fractioned zooplankton biomass in the Barents Sea: macroecological patterns across biogeography, climate, and varying ecosystem state (1989-2020)".MARINE ECOLOGY PROGRESS SERIES 726(2024). |
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