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Spatial And Temporal Variability Of Fish Assemblage In Kuwait Bay

机译：科威特湾鱼类种群的时空变异

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Spatial and temporal variability of fish assemblages in Kuwait Bay was studied using the catch data acquired through monthly otter trawl sampling from June 2002 through July 2004. We compared species composition using relative species density and cluster analysis among different seasons (summer'02, summer'03, winter'03, and spring'04) and areas (center, south 1, south 2, west, north and east). Significant differences in total species, species richness (SR), diversity (H'), and fish abundance were tested among (between) different seasons and areas using analysis of variance (ANOVA) and Duncan's test. The results showed that the catches consisted of 80 species representing 41 families with Leiognathus bindus and Plicofollis tenuispinis dominating numerically. Spatially, species composition fell into three main areas: (1) east; (2) south 1 and south 2; and (3) north, center, and west. Temporally, winter'03 and spring'04 were closely related, but we found low similarity between the two summers and even lower similarity between the summers and other seasons, indicating high intra-annual variation. L. bindus was abundant in most of the areas except south 1, south 2 and the east area. Spatial changes of abundance of the two dominant species showed a complementary trend. Where L. bindus was numerically high, P. tenuispinis was low, and vice versa. Significant lower total species number and SR were observed in south 2 than all the other areas except the east, and significant higher fish abundance occurred in the summers than during the other seasons.
机译：利用2002年6月至2004年7月通过每月水獭拖网采样获得的捕获数据，研究了科威特湾鱼类种群的时空变化。我们使用相对物种密度和聚类分析比较了不同季节之间的物种组成（“ 02年夏季，夏季” 03、03冬季和04春季）和地区（中，南1，南2，西，北和东）。使用方差分析（ANOVA）和Duncan检验对不同季节和地区之间（之间）的总物种，物种丰富度（SR），多样性（H'）和鱼类丰度的显着差异进行了测试。结果表明，该渔获物由80个物种组成，代表41个科，其中Leiognathus bindus和Plicofollis tenuispinis在数量上占优势。在空间上，物种构成分为三个主要区域：（1）东； （2）南1和南2； （3）北，中和西。从时间上看，冬季'03和春季'04密切相关，但我们发现两个夏季之间的相似度较低，而夏季和其他季节之间的相似度较低，这表明年际变化较大。除南1，南2和东部地区以外，大部分地区的链球菌都丰富。两个优势种的丰度空间变化呈互补趋势。 L. bindus在数值上较高，而P. tenuispinis在数值较低，反之亦然。与东部以外的其他地区相比，南部2地区的总物种数和SR均显着降低，夏季的鱼类丰度明显高于其他季节。

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