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首页> 外文期刊>ICES Journal of Marine Science >Abundance, composition, and development of zooplankton in the Subarctic Iceland Sea in 2006, 2007, and 2008
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Abundance, composition, and development of zooplankton in the Subarctic Iceland Sea in 2006, 2007, and 2008

机译：2006年，2007年和2008年冰岛亚北极海域浮游动物的丰度，组成和发育

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摘要

A large-scale study of zooplankton from surface waters and depth-stratified sampling at selected sites in the Iceland Sea was conducted during the years 2006-2008. The abundance of mesozooplankton was low during winter, when animals were mostly confined to the colder (～0℃) and deeper (~200-1000 m) layers, and peaked during late summer (～11 -18 g dry weight m~(-2), ～ 300 000-400 000 ind. m~(-2)), when animals resided mainly above the 50-100-m depth range. Diversity was greatest near the shelf edges and least in the central Iceland Sea. Around 32% of mesozooplankton variability was explained by six variables [longitude, year 2008, temperature, bottom depth, chlorophyll a (Chl a), and salinity]. Three main mesozooplankton communities were identified: (ⅰ) an Atlantic community in the east, with Calanus finmarchicus and Pseudocalanus spp. most abundant, (ⅱ) an Arctic community at high latitudes, with large numbers of C hyperboreus and C. glacialis, and (ⅲ) a community with coastal affinities at lower latitudes, with large numbers of Temora longicornis and Acartia spp. Longitude and Chi a explained ~43% of macrozooplankton variability (euphausiids and amphipods). Results show that the region is a meeting place of Arctic and Atlantic species, with the copepods C. finmarchicus and C hyperboreus, the amphipod Themisto abyssorum, and the euphausiid Thysanoessa longicaudata the key players.
机译：在2006年至2008年期间，对冰岛海中选定地点的地表水和深度分层采样的浮游动物进行了大规模研究。中层浮游动物的丰度在冬季较低，主要是将动物局限于较冷的（〜0℃）和较深的（〜200-1000 m）层，并在夏末（〜11 -18 g干重m〜（- 2），〜300 000-400 000 ind。m〜（-2）），而动物主要居住在50-100-m深度范围内。架子边缘附近的多样性最大，而在冰岛中部海域则最少。中生浮游生物约32％的变异性由六个变量[经度，2008年，温度，底部深度，叶绿素a（Chl a）和盐度]解释。确定了三个主要的中层浮游动物群落：（ⅰ）东部的一个大西洋群落，其中有Calaus finmarchicus和Pseudocalanus spp。最丰富的地区是（ⅱ）高纬度的北极社区，有大量的C. hyperboreus和C. glacialis；以及（ⅲ）在较低的纬度具有沿海亲和力的社区，有大量的Temora longicornis和Acartia spp。经度和Chi解释了约43％的巨足动物浮游动物（真鱼和两栖动物）变异。结果表明，该地区是北极和大西洋物种的交汇处，the足类的C. finmarchicus和C. hyperboreus，两栖纲Themisto abyssorum和euphausiid Thysanoessa longicaudata是主要参与者。

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