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Publications (39)
Swimming performance is a well‐established key physiological parameter of fish that is highly linked to their fitness in the wild. In the context of fish restocking purposes, it therefore appears crucial to study this specific behaviour. Here, the authors investigated intra and interspecies differences in the swimming performance of hatchery‐reared...
Most coastal fish species spend their early life stages in the pelagic environment, before settling in coastal habitats. The variability in the arrival of larvae to coastal habitats provide information on the species’ biology and recruitment potential. To explore the dynamics of larval fish supply to coastal habitats in the NW Mediterranean Sea, 13...
Fish larvae at settlement represent a determining stage for maintaining coastal fish populations. This early life stage is decisive for the dispersal, recruitment, and habitat colonisation of coastal fish species. This study aims at observing the orientation behaviour of eight Mediterranean fish taxa, in four families, at settlement stage in two ex...
Experimental measurements were made in the laboratory to determine the swimming capacities of settlement‐stage fish larvae of several Mediterranean coastal species collected from the nearshore waters of Corsica, France. Critical swimming speed (Ucrit, cm s⁻¹) was measured to provide a realistic laboratory estimate of in situ swimming speed. Morphom...
The Biguglia lagoon is a shallow Mediterranean coastal ecosystem where eutrophication is increasing for years. A channel supplying freshwater was cleared in 2009 to enhance lagoon water circulation and alleviate dystrophic crises. Monthly monitoring was started in 2010 to document the impacts of this action on abiotic characteristics and phytoplank...
Plusieurs études affirment l'importance de la production de larves sur la dynamique des populations locales. Il est admis que le succès du recrutement dans une population de poissons dépend principalement des processus qui se déroulent pendant les premiers stades de vie, où la mortalité est très élevée. La présente étude vise à caractériser la dive...
This guide covers the transition from larvae (often translucent) to juveniles displaying adult characteristics for over 80 fish species from the North-Western Mediterranean Sea. Key development stages are described and illustrated with 380 colour photographs. The guide also summarises general information on the ecology, morphology, distribution, ha...
This work is integrated in a study initiated on post-larval fish biodiversity of Northwest Mediterranean Sea (Life+ SUBLIMO, Life10 Nat/FR/000200). The aim of this work is to highlight a link between post-larval biodiversity and food availability in the marine coastal environment.
This first quantitative and qualitative approach of plankton communi...
This work in close collaboration between the University of Corsica and Ifremer, presents the distribution and dispersal of coastal fish larvae in a transboundary Marine Protected Areas (MPA) of the Mediterranean Sea : the Strait of Bonifacio (between Sardinia, Italy and Corsica, France). The method developed is to provide tools and information to b...
The strait of Bonifacio constitutes one of the rare transboundary Marine Protected Areas (MPA) of the Mediterranean Sea (between Sardinia, Italy and Corsica, France). Based on the hypothesis that no-take zones will produce more fish larvae, compared to adjacent fished areas, we modeled the outcome of larvae released by coastal fishes inside the no-...
Corsica Island is a sub-basin of the Northwestern Mediterranean Sea, with hydrological features typical of both oligotrophic systems and eutrophic coastal zones. Phytoplankton assemblages in two coastal ecosystems of Corsica (the deep Bay of Calvi and the shallow littoral of Bastia) show contrasting patterns over a one-year cycle. In order to deter...
This work aim to improve marine environment knowledge and the causes of loss in marine biodiversity. Main objective of the study is to inventory the fishes’ post-larval biodiversity, a biological compartment not well known in the Mediterranean. The Postlarvae Capture and Culture (PCC) innovative technique (Lecaillon & Lourié, 2007) using new device...
This study is in relation with a study initiated on the fishes’ post-larvae biodiversity monitoring of Northwest Mediterranean (Life+ SUBLIMO). The interest of this work is to check whether if there is a link between biodiversity of these fishes’ post-larvae and food available in the environment.
Thus, the quantification and qualification of plankt...
According to the most recent assessments of the Census of Marine Life (PlosOne 2010), the decrease of marine biodiversity is dramatic in the Mediterranean Sea. Habitat degradation, overexploitation of natural resources, climate change, invasive species and pollution are recognized as the most important. The urgent need to stop the biodiversity decr...
Main objective of the study is to inventory the fishes’ post-larval diversity, a biological compartment not well known in the Mediterranean. The Postlarvae Capture and Culture (PCC) innovative technique (Lecaillon & Lourié, 2007)) is used in order to collect, identify and quantify post-larvae coastal fishes on 3 marine sites of the Corsican coasts...
Main objective of the study is to inventory the fishes’ post-larval diversity, a biological compartment not well known in the Mediterranean. The Postlarvae Capture and Culture (PCC) innovative technique (Lecaillon & Lourié, 2007)) is used in order to collect, identify and quantify post-larvae coastal fishes on 3 marine sites of the Corsican coasts...
According to the most recent assessments of the Census of Marine Life (Coll and al., 2010), the decrease of marine biodiversity is particularly drastic in the Mediterranean Sea. The causes of biodiversity loss are multiple and mainly due to human activities. Habitat degradation, overexploitation, climate change, invasive species and pollution are r...
According to the most recent assessments of the Census of Marine Life published in August 2010 in the review PlosOne (Coll and al., 2010), the decrease of marine biodiversity is particularly dramatic in the Mediterranean Sea. Causes of biodiversity loss are multiple and mainly due to human activities, but habitat degradation, overexploitation of na...
Early life history stages (ELHS) constitutes a poorly known phase of fish life cycle, in which at least 90% of mortality occurs, therefore affecting directly adult population dynamics. A detailed knowledge of the events taking place during these stages is crucial to explain connectivity patterns and thus helping the proper management of marine popu...
The parasitofauna of 148 salmonids has been analyzed. Three host species have been recorded in the insular hydrographic network: the brown trout, Salmo trutta, the rainbow trout, Oncorhynchus mykiss and the brook trout, Salvelinus fontinalis. In order to characterize the parasites in these salmonids a Factorial Analysis of Correspondances (FCA) has...
This work describes the first ultrastructural results on spermiogenesis and on the mature spermatozoon of Dicrocoelium hospes (Trematoda, Digenea) collected in Bos indicus from Senegal (Africa). Examination of this species was processed by TEM. Spermiogenesis follows the general pattern found in the digenean, but reveals a particularity consisting...
In the preoncospheral stage of development of Joyeuxiella echinorhyncoides three primary embryonic envelopes are formed: (1) the capsule; (2) the outer envelope formed by two macromeres, and (3) the inner envelope originating from fusion of three mesomeres. Both the outer and inner envelopes of J. echinorhyncoides are therefore cellular in origin a...
This paper describes the ultrastructure of spermiogenesis and the mature spermatozoon of two Dipylidiidae cestodes, Joyeuxiella echinorhynchoides and J. pasqualei. In both species, spermiogenesis follows the type III described by Bâ and Marchand for the cyclophyllideans. Nevertheless, it is interesting to note the presence of striated roots associa...
Cymodocea nodosa meadows within the Urbinu lagoon showed unimodal growth during an annual cycle (1998–1999), reaching maximum development in summer, minimal development in winter, and a particularly active phase in spring. The below-ground biomass (446 g dry wt. m−2) was higher than the above-ground biomass (332 g dry wt. m−2). Leaf production was...
The surface area covered by three protected seagrass species (Cymodocea nodosa, Zostera noltii and Ruppia cirrhosa) and their distribution in the Urbinu Lagoon were estimated for the first time by surveying 206 ha area, representing 29% of the total area, using field data, aerial photography and image processing. These methods allowed evaluation of...
Cymodocea nodosa meadows within the Urbinu lagoon showed unimodal growth during an annual cycle (1998–1999), reaching maximum development in summer, minimal development in winter, and a particularly active phase in spring. The below-ground biomass (446 g dry wt. m −2) was higher than the above-ground biomass (332 g dry wt. m −2). Leaf production wa...
Aerial photographs and in situ data of the Urbinu Lagoon (one of the largest and deepest ponds in Corsica, Mediterranean Sea) permit the establishment of a cartography of its aquatic benthic assemblages and types of sea-beds. It was possible to distinguish in the photographs submerged structures such as: sand, pebbles, mud and seagrass meadows. Sea...
The identification and quantification of phenolic compounds was carried out in various Posidonia oceanica foliar tissues using high performance liquid chromatography (HPLC). Samples were taken during the spring and correspond to sites presenting different environmental conditions: over-grazing by herbivores (Sarpa salpa, Paracentrotus lividus), pre...
