Can mineralogical features influence distribution patterns of fish? A case study in shallow Mediterranean rocky reefs

被引:17
|
作者
Guidetti, P
Cattaneo-Vietti, R
机构
[1] Univ Lecce, Lab Zool & Biol Marina, DiSTeBA, CoNISMa, I-73100 Lecce, Italy
[2] Univ Genoa, DipTeRis, I-16132 Genoa, Italy
关键词
D O I
10.1017/S0025315402006653
中图分类号
Q17 [水生生物学];
学科分类号
071004 ;
摘要
Spatial distribution patterns of two small serranids, Serranus scriba and S. cabrilla, have been investigated in June 2001 in northeastern Sardinia (Tyrrhenian Sea, Italy). Density and size of both species were estimated by visual census on shallow (5-7 m) rocky reefs constituted by different mineralogical types (granites vs carbonates), at different locations (several kilometres apart from each other) and sites (hundreds of metres from each other). Serranus scriba was significantly more abundant on granite rocks (where it also showed a greater frequency of large specimens) than on carbonates, while S. cabrilla displayed opposite patterns.
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页码:1043 / 1044
页数:2
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