Skip to Main content Skip to Navigation
Journal articles

Trophic ecology of Pomatoschistus microps within an intertidal bay (Roscoff, France), investigated through gut content and stable isotope analyses

Abstract : The diet of Pomatoschistus microps has been studied using both gut content and stable isotope analyses. In the Roscoff Aber Bay (Brittany, France), this fish is commonly found on sandy muddy intertidal flats. Gut content analyses were also interpreted using trophic indices. Owing to the large diversity of prey consumed, these indices emphasised the opportunistic feeding behaviour of P.microps. Here, this species fed mainly on endofauna with meiofauna being of high relative importance. The main biotic components of its trophic habitat, characterized by C-13 and N-15, provided evidence of a major trophic pathway based on drift Enteromorpha sp. Trophic positions estimated by both diet analyses and isotopic analyses led to similar results. In this bay, P.microps is a first-order predator with a low degree of omnivory. Despite a preferential consumption of the amphipod Corophium arenarium, we assumed that this goby behaves as a generalist feeding on a uniform variety of endofauna taxa.
Document type :
Journal articles
Complete list of metadata

https://hal.archives-ouvertes.fr/hal-01250904
Contributor : Gestionnaire Hal-Upmc <>
Submitted on : Tuesday, January 5, 2016 - 2:27:34 PM
Last modification on : Monday, February 1, 2021 - 12:06:02 PM

Links full text

Identifiers

Citation

Jean-Charles Leclerc, Pascal Riera, Laure M-L J. Noël, Cédric Leroux, Ann C. Andersen. Trophic ecology of Pomatoschistus microps within an intertidal bay (Roscoff, France), investigated through gut content and stable isotope analyses. Marine Ecology, Wiley, 2014, 35 (2), pp.261-270. ⟨10.1111/maec.12071⟩. ⟨hal-01250904⟩

Share

Metrics

Record views

292