The Great Melting Pot. Common Sole Population Connectivity Assessed by Otolith and Water Fingerprints
| Type | Article | ||||||||||||||||||||||||
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| Date | 2014-01 | ||||||||||||||||||||||||
| Language | English | ||||||||||||||||||||||||
| Author(s) | Morat Fabien1, 2, Letourneur Yves3, Dierking Jan4, Pecheyran Christophe5, Bareille Gilles5, Blamart Dominique6, Harmelin-Vivien Mireille1, 2 | ||||||||||||||||||||||||
| Affiliation(s) | 1 : Aix Marseille Univ, CNRS INSU, Mediterranean Inst Oceanog MIO UM 110, IRD, Marseille, France. 2 : Univ Toulon & Var, CNRS INSU, Mediterranean Inst Oceanog MIO UM 110, IRD, La Garde, France. 3 : Univ Nouvelle Caledonie, Lab LIVE & LABEX Corail, Noumea, New Caledonia. 4 : Helmholtz Ctr Ocean Res GEOMAR, Kiel, Germany. 5 : Univ Pau & Pays Adour, LCABIE, UMR CNRS IPREM 5254, Pau, France. 6 : UMR 8212 CEA CNRS UVSQ, Lab Sci Climat & Environm, Gif Sur Yvette, France. |
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| Source | Plos One (1932-6203) (Public Library Science), 2014-01 , Vol. 9 , N. 1 , P. 1-15 | ||||||||||||||||||||||||
| DOI | 10.1371/journal.pone.0086585 | ||||||||||||||||||||||||
| WOS© Times Cited | 18 | ||||||||||||||||||||||||
| Abstract | Quantifying the scale and importance of individual dispersion between populations and life stages is a key challenge in marine ecology. The common sole (Solea solea), an important commercial flatfish in the North Sea, Atlantic Ocean and the Mediterranean Sea, has a marine pelagic larval stage, a benthic juvenile stage in coastal nurseries (lagoons, estuaries or shallow marine areas) and a benthic adult stage in deeper marine waters on the continental shelf. To date, the ecological connectivity among these life stages has been little assessed in the Mediterranean. Here, such an assessment is provided for the first time for the Gulf of Lions, NW Mediterranean, based on a dataset on otolith microchemistry and stable isotopic composition as indicators of the water masses inhabited by individual fish. Specifically, otolith Ba/Ca and Sr/Ca profiles, and delta C-13 and delta O-18 values of adults collected in four areas of the Gulf of Lions were compared with those of young-of-the-year collected in different coastal nurseries. Results showed that a high proportion of adults (>46%) were influenced by river inputs during their larval stage. Furthermore Sr/Ca ratios and the otolith length at one year of age revealed that most adults (similar to 70%) spent their juvenile stage in nurseries with high salinity, whereas the remainder used brackish environments. In total, data were consistent with the use of six nursery types, three with high salinity (marine areas and two types of highly saline lagoons) and three brackish (coastal areas near river mouths, and two types of brackish environments), all of which contributed to the replenishment of adult populations. These finding implicated panmixia in sole population in the Gulf of Lions and claimed for a habitat integrated management of fisheries. | ||||||||||||||||||||||||
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