USE OF RIVER HABITAT SURVEY TO DETERMINE THE SPAWNING HABITAT CHARACTERISTICS OF TWAITE SHAD (ALOSA FALLAX FALLAX).

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Contributeur(s) EDP Sciences
Identifiant documentaire 11-2001027
Identifiant OAI oai:edpsciences.org:dkey/10.1051/kmae:2001027
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Auteur(s): P. A. CASWELL,M. W. APRAHAMIAN
Mots clés Alosa fallax fallax spawning habitat River Habitat Survey Alosa fallax fallax habitat de ponte « River Habitat Survey »
Date de publication 01/05/2008
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Source https://doi.org/10.1051/kmae:2001027
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Description
The spawning habitat of twaite shad comprises a fast-flowing shallow area of unconsolidated gravel/pebble and/or cobble substrate. The River Habitat Survey flow types « smooth flow », « rippled flow » and « unbroken standing waves » were significantly (P < 0.05) associated with the presence or absence of shad eggs. The presence of eggs was significantly associated with the higher energy flow types « rippled flow » and « unbroken standing waves », and the absence of eggs was significantly associated with the lower energy flow type « smooth flow ».

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