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Temporal variability of three different macrofauna communities in the northern North Sea

机译：北海北部三种不同大型动物群落的时间变化

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In 1999, 2003 and 2007 macrofauna communities were sampled in three different areas ("Boxes") of 10 × 10 nautical miles in the northern North Sea in order to study the temporal changes in community structure in relation to changes in temperature or changes in hydrography.rnBox D which was influenced by the Fair Isle Current revealed an increase in abundance of sand-licking species between 1999, 2003 and 2007. Significant positive correlations between SST and abundance of characteristic species as well as different feeding types in this mixed water column area seemed to be related to enhanced primary production and SST resulting in higher food supply.rnWithin the East Shetland Basin (Boxes L and M) temporal changes in the macrofaunal communities between 1999 and 2003 were caused by a strong decrease in abundance of surface deposit and suspension feeders which indicated a lower food supply. An increase in abundance of species known for a rapid response to sudden food supply was found in 2007.rnThere is evidence that hydrographic conditions such as stratification and different water masses in this area influence the variability of food supply for the macrofauna and caused changes in community structure.
机译：在1999年，2003年和2007年，在北海北部10×10海里的三个不同区域（“盒子”）中采样了大型动物群落，以便研究与温度变化或水文学变化有关的群落结构的时间变化。 .rnBox D受费尔岛潮流的影响，表明1999年，2003年至2007年之间，沙质物种的丰度有所增加。在该混合水域地区，SST与特征物种的丰度以及不同的摄食类型之间存在显着的正相关关系。似乎与初级生产和SST的提高导致粮食供应增加有关。rn在东设得兰河流域（方框L和M）内，1999年至2003年间大型动物群落的时间变化是由于表层沉积物和悬浮物的丰度大大降低所致。喂食器表示食物供应减少。 2007年发现了对突然食物供应迅速做出反应的已知物种的数量增加。rn有证据表明，该地区的水文条件（例如分层和不同水量）会影响大型动物食物供应的可变性，并引起群落变化。结构体。

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