Large tropical fishes and their use of the nearshore littoral, intertidal and subtidal habitat mosaic

被引:11
|
作者
Adkins, Merritt E. [1 ]
Simpfendorfer, Colin A. [1 ]
Tobin, Andrew J. [1 ]
机构
[1] James Cook Univ, Coll Marine & Environm Sci, Ctr Sustainable Trop Fisheries & Aquaculture, Townsville, Qld 4811, Australia
关键词
Cleveland Bay; fish communities; shallow-coastal habitats; sharks; SURF-ZONE; SPECIES COMPOSITION; SHALLOW-WATER; CARCHARHINUS-TILSTONI; NURSERY FUNCTION; TIDAL MOVEMENTS; ESTUARINE; COASTAL; SHARKS; AUSTRALIA;
D O I
10.1071/MF14339
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
Shallow-coastal habitats are highly productive environments supporting a diverse community of fishes. Historical research suggests these habitats primarily function to support and nurture juvenile fishes; however, contemporary research indicates large and mature fishes also utilise these habitats. Moreover, few studies have considered the continuous cross-shore nature (i.e. extending seaward) of shallow-coastal habitats consisting of conjoined littoral, intertidal and subtidal habitats. To investigate the community of large-bodied fishes (>200mm) and how they distribute themselves across a mosaic of littoral, intertidal and subtidal habitats, seasonal sampling was conducted over 1 year in north-eastern Australia. A total of 1119 individuals from 26 families and 36 species were sampled, though four families accounted for 79.1% of the total sample (Latidae, Polynemidae, Ariidae and Carcharhinidae). The littoral and subtidal communities differed significantly from each other, whereas the intertidal community shared some species-specific characteristics with both adjacent fish communities. Teleosts were the dominant group in the littoral and intertidal habitats, whereas sharks dominated the subtidal. These patterns are likely driven by a combination of biological and ecological processes; however, further research is necessary to better understand the role of these processes on shaping the large-bodied fish communities of shallow-coastal waters.
引用
收藏
页码:1534 / 1545
页数:12
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