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Settlement and recruitment in fishes: The role of coastal areas

 

作者: Franco Biagi,   Silvia Gambaccini,   Massimo Zazzetta,  

 

期刊: Italian Journal of Zoology  (Taylor Available online 1998)
卷期: Volume 65, issue sup1  

页码: 269-274

 

ISSN:1125-0003

 

年代: 1998

 

DOI:10.1080/11250009809386831

 

出版商: Taylor & Francis Group

 

关键词: Coastal zone management;Fishes;Microhabitat;Recruitment;Settlement;Visual census

 

数据来源: Taylor

 

摘要:

A three‐year investigation was conducted in littoral areas of Elba Island using visual census to investigate settlement and recruitment of several coastal fish species both unfished and those important to small‐scale fisheries. Fish microhabitat preferences at different stages of development were examined to determine features that make these coastal areas suitable for their settlement and recruitment. Post‐larvae and recruits of46species, belonging to 18 families, were observed in the study area; the most important families were labrids (11 species) and sparids (10 species). Many of the species observed settled in shallow water (< 1 m) and near shore (< 2 m from shore) of littoral rocky areas. Three sparids,Diplodus puntazzo, D. sargusandD. vulgaris, settle in shallow water with a slope of less than 30° and reduced algal cover. They have very similar spatial requests during the first year of their life and they use the nurseries at different time. This is probably an adaptive strategy to reduce inter‐specific competition among sea‐bream settlers and recruits. Knowledge of fish settlement and spatial requirements are important to develop models for integrated and sustainable coastal zone management.

 

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