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Use of shallow water habitats by fish assemblages in a Mediterranean coastal lagoon

Franco, Anita; Franzoi, Piero; Malavasi, Stefano; Riccato, Federico; Torricelli, Patrizia; Mainardi, Danilo

Authors

Piero Franzoi

Stefano Malavasi

Federico Riccato

Patrizia Torricelli

Danilo Mainardi

Abstract

The present study investigates the different uses and the functional roles of shallow habitats for fish fauna in the Venice Lagoon, by applying the functional guilds approach. Temporal (seasons) and spatial (location) changes within the lagoon show different habitat uses by fish assemblages, not influenced by local factors. Unvegetated mud habitats (salt marsh creeks and sub-tidal mud flats) and sparsely vegetated (seagrass) habitats show a common nursery role, especially for marine migrant fishes; but, contrary to other similar areas elsewhere shallow seagrass beds in the Venice Lagoon do not have a primary nursery role. This latter habitat has a more important role as a spawning ground for a resident, highly specialized component of the fish community. The habitat uses and their role to fish fauna illustrate the balance between predation risk and foraging profitability, as major factors structuring the fish assemblages. Spatial effects at a larger scale also highlight general characteristics of the fish assemblages in the Venice Lagoon. These indicate differences between the Northern sub-basin and the other two lagoon sub-basins, due to differences in the hydrodynamic regime, habitats distribution, and contributions from land and sea. (c) 2005 Published by Elsevier Ltd.

Journal Article Type Article
Publication Date 2006-01
Journal Estuarine, Coastal and Shelf Science
Print ISSN 0272-7714
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 66
Issue 1-2
Pages 67-83
Institution Citation Franco, A., Franzoi, P., Malavasi, S., Riccato, F., Torricelli, P., & Mainardi, D. (2006). Use of shallow water habitats by fish assemblages in a Mediterranean coastal lagoon. Estuarine, coastal and shelf science, 66(1-2), 67-83. https://doi.org/10.1016/j.ecss.2005.07.020
DOI https://doi.org/10.1016/j.ecss.2005.07.020
Keywords Fish assemblages; Shallow waters; Functional guilds; Habitat use; Spatial change; Mediterranean Lagoon
Publisher URL https://www.sciencedirect.com/science/article/pii/S0272771405002702?via%3Dihub

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