State-space modeling of multi-decadal mark-recapture data reveals low adult dispersal in a nursery-dependent fish metapopulation

Type Article
Date 2020-02
Language English
Author(s) Lecomte Jean-Baptiste1, Le Pape Olivier2, Baillif Hélène2, Nevoux Marie3, Vermard YouenORCID4, 5, Savina-Rolland MarieORCID5, 6, Veron MatthieuORCID2, Lehuta SigridORCID7, Hunter Ewan8, Rivot Etienne9
Affiliation(s) 1 : AGROCAMPUS OUEST, 124109, Research Unit Ecology and Ecosystem Health, 65 rue de Saint Brieuc, CS 84215, Rennes, France
2 : AGROCAMPUS OUEST, 124109, Research Unit Ecology and Ecosystem Health, Rennes, France
3 : INRA, UMR Ecologie et Santé des Ecosystèmes, 65 rue de St Brieuc, Rennes, France
4 : IFREMER, Unité EMH, Nantes, France
5 : IFREMER, Unité d’Halieutique Manche Mer du Nord, F-62321, Boulogne, France
6 : IFREMER, Laboratoire Ressources Halieutiques - Fisheries Resources Laboratory, Lorient, France
7 : Ifremer, Ecologie et Modèles pour l'Halieutique, Nantes, France
8 : Centre for Environment Fisheries and Aquaculture Science, 41843, Lowestoft, Suffolk, United Kingdom of Great Britain and Northern Ireland
9 : Agrocampus Ouest, UMR 0985 INRA / Agrocampus Ouest ESE, Agrocampus, Ecologie Halieutique, 65, rue de St Brieuc, Rennes, France
Source Canadian Journal Of Fisheries And Aquatic Sciences (0706-652X) (Canadian Science Publishing), 2020-02 , Vol. 77 , N. 2 , P. 342-354
DOI 10.1139/cjfas-2019-0037
Abstract

Quantifying connectivity within fish metapopulations is an important component in understanding population dynamics and providing an evidence base for assessment and management. We investigate meta-population connectivity of the common sole (Solea solea L.) in the Eastern English Channel (EEC). The EEC common sole stock is currently assessed as a single and spatially homogeneous population but connectivity induced through adult movements within this stock and with nearby stocks remains unknown. To fill this knowledge gap, we developed a state-space mark-recovery model, designed to estimate adult connectivity, using mark-recapture data from multiple release experiments from 1970 to 2018 across the EEC and adjacent management areas. The model estimates seasonal fish movements between five pre-defined areas, Western English Channel, Eastern English Channel (split into three discrete sub-areas) and North Sea. Over 32000 fish were tagged, 4036 of which were recovered via fisheries. Our results suggest minimal large-scale adult movements between these areas: movements among spatial units within the EEC were very low with even lower levels of immigration from areas adjoining the EEC. Our results support the hypothesis of segregated populations within the EEC. The importance of accommodating population substructure in the fisheries management is considered.

Full Text
File Pages Size Access
Author's final draft IN PRESS 47 820 KB Open access
13 1 MB Access on demand
6 490 KB Access on demand
Top of the page

How to cite 

Lecomte Jean-Baptiste, Le Pape Olivier, Baillif Hélène, Nevoux Marie, Vermard Youen, Savina-Rolland Marie, Veron Matthieu, Lehuta Sigrid, Hunter Ewan, Rivot Etienne (2020). State-space modeling of multi-decadal mark-recapture data reveals low adult dispersal in a nursery-dependent fish metapopulation. Canadian Journal Of Fisheries And Aquatic Sciences, 77(2), 342-354. Publisher's official version : https://doi.org/10.1139/cjfas-2019-0037 , Open Access version : https://archimer.ifremer.fr/doc/00515/62634/