Assessment of rock pool fish assemblages along a latitudinal gradient
Assessment of rock pool fish assemblages along a latitudinal gradient
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沿纬度梯度评估岩池鱼群
DOI：
10.1007/s12526-016-0560-8
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发表时间：
2018
影响因子：
1.6
通讯作者：
N. Moltschaniwskyj
中科院分区：
文献类型：
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作者：
D. Harasti;Catherine McLuckie;C. Gallen;H. Malcolm;N. Moltschaniwskyj
出于多种原因（例如生物多样性保护、物种管理、气候变化），加强对区域范围内生物多样性纬度梯度和模式的了解非常重要。这项研究评估了澳大利亚东部新南威尔士州 (NSW) 海岸 860 公里的 39 个地点的岩池鱼类组合及其与纬度的关系，从桑顿到梅林布拉（南纬 29.67816° 至南 36.90046°）。使用微型诱饵远程水下视频 (mini-BRUV) 部署 30 分钟，在每个位置调查 5 个或更多重复项目（岩石池），了解物种丰富度和个体鱼类的最大数量 (MaxN)。总共对 371 个岩池进行了采样，记录了来自 46 个科、115 个物种的 7070 条鱼类。新南威尔士州北部的鱼类物种丰富度最高，随着纬度的增加，物种丰富度显着下降，以南每纬度 1.7 种的速度下降。热带物种在新南威尔士州北部（考夫斯港南纬 30°）占主导地位，而温带物种多样性在新南威尔士州中部（斯蒂芬斯港南纬 32.7°）最为丰富。岩石池组合之间的差异主要是由来自八个不同科的八个物种造成的。这项研究记录了澳大利亚东海岸沿纬度的鱼类聚集模式，并为阐明未来的变化提供了基线。
Increased understanding of latitudinal gradients and patterns of biodiversity at a regional scale is important for many reasons (e.g. biodiversity conservation, species management, climate change). This study assessed rock pool fish assemblages and their relationship to latitude at 39 locations along 860 km of the New South Wales (NSW) coast, eastern Australia, from Sandon to Merimbula (29.67816°S to 36.90046°S). Thirty-minute deployments of miniature baited remote underwater video (mini-BRUV) were used to survey five or more replicates (rock pools) at each location for species richness and maximum number (MaxN) of individual fishes. A total of 371 rock pools were sampled, with 7070 fish recorded from 46 families and 115 species. Fish species richness was greatest in northern NSW, with a significant decline in species richness with increasing latitude, at a rate of 1.7 species per degree of latitude south. Tropical species were dominant in northern NSW (Coffs Harbour ∼30°S), whilst temperate species diversity was greatest towards central NSW (Port Stephens 32.7°S). Differences amongst rock pool assemblages were primarily driven by eight species from eight different families. This study documents latitudinal fish assemblage patterns along the east Australian coast and provides a baseline for elucidating future changes.