Titre :
|
Habitat linkages : the effect of intertidal saltmarshes and adjacent subtidal habitats on abundance, movement, and growth of an estuarine fish
|
Auteurs :
|
E. Irlandi ;
M. Crawford
|
Type de document :
|
article/chapitre/communication
|
Année de publication :
|
1997
|
Format :
|
p. 222-230
|
Langues:
|
= Anglais
|
Catégories :
|
Environnement
|
Mots-clés:
|
ESTUAIRE
;
HABITAT
;
ECOLOGIE DU PAYSAGE
;
POISSON
;
MARAIS SALANT
|
Résumé :
|
In this study we used pinfish (Lagodon rhomboides) in field experiments to examine linkages between intertidal saltmarsh and adjacent subtidal habitats. Pinfish are more than twice as abundant in intertidal marshes adjacent to seagrass beds than in those adjacent to the unvegetated subtidal bottom. Movement of pinfish between the marsh edge and the adjacent subtidal habitat was greater for fish captured in areas with both intertidal and subtidal vegetation than in those with intertidal vegetation and adjacent unvegetated mudflats. This movement provides an important link between habitats, allowing transfer of marsh-derived secondary production to subtidal seagrass beds and vice versa. Pinfish held in enclosures with both intertidal and subtidal vegetation were, on average, approximately 90% heavier than fish held in enclosures with intertidal vegetation and unvegetated subtidal bottom.
|
Source :
|
Oecologia, vol.110
|