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首页> 外文期刊>Journal of plankton research >North Atlantic right whale (Eubalaena glacialis) and its food: (I) a spatial climatology of Calanus biomass and potential foraging habitats in Canadian waters
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North Atlantic right whale (Eubalaena glacialis) and its food: (I) a spatial climatology of Calanus biomass and potential foraging habitats in Canadian waters

机译：北大西洋右鲸（Eubalaena Glacialis）及其食物：（i）加拿大水分的气体生物质和潜在觅食栖息地的空间气候

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摘要

This study aimed at identifying potentially suitable foraging habitats for the North Atlantic right whale (NARW; Eubalaena glacialis) in the Gulf of St Lawrence (GSL), on the Scotian Shelf (SS) and in the Bay of Fundy (BoF), Canada, based on the distribution densities of their main prey, Calanus copepod species. More than 4800 historical Calanus spp. water column integrated samples as well as 221 vertically stratified sampling stations were used to create a 3D (latitude, longitude and vertical) climatology of Calanus spp. biomass densities for spring and summer-fall when NARW are feeding in Canadian waters. We then combined this 3D preyscape with bio-energetic considerations to highlight potentially suitable NARW foraging habitats in the region. Our 3D climatological approach successfully identified the known feeding areas of Grand Manan (BoF) and Roseway Basin (western SS), confirming its validity. Expanding our analyses to the GSL and other parts of the SS, we identified in both regions areas previously unknown where Calanus spp. biomass densities exceeded minimum levels suitable for foraging NARW. Our results represent a key contribution to the identification of important foraging areas for NARW in Canadian waters, especially in the context of climate change and the documented shift in NARW distribution.
机译：这项研究旨在识别斯科鲁斯（GSL）海湾的北大西洋右鲸（NARW; Eubalaena Glacialis）的潜在合适的觅食栖息地，在Scotian货架（SS）和Canada的Fundy（BOF）湾，基于其主要猎物的分布密度，Calanus Copepod物种。超过4800名历史calanus spp。水柱集成样本以及221个垂直分层的采样站用于创建Calanus SPP的3D（纬度，经度和垂直）气候学。当NARW在加拿大水域喂食时，春天和夏季秋​​天的生物质密度。然后，我们将这3D占地面积与生物能量的考虑相结合，以突出该地区突出潜在的合适的纳瓦尔居住栖息地。我们的3D气候方法成功地确定了Grand Manan（BOF）和罗斯韦州盆地（西部SS）的已知喂养区，确认其有效性。扩展我们对SS的GSL和SS的其他部分的分析，我们在Palanus SPP之前先前未知的两个地区识别。生物质密度超过适合于凹槽的最小水平。我们的业绩代表了对加拿大水域纳瓦尔的重要觅食地区的重要贡献，特别是在气候变化和纳沃分布的记录转变的范围内。

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