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| Registros recuperados: 28 | |
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| Mahe, Kelig; Bellamy, Elise; Lartaud, Franck; De Rafelis, Marc. |
| This work focuses on investigating the potential of calcein and manganese as growth markers of the common cockle (Cerastoderma edule) in the bay of Somme (France). Recapture of shells, previously marked using a chemical marking and then bred in natural conditions, was performed in order to determine the shell growth patterns. Calcein marking has shown a fluorescent increment in shells after only 30 min immersion time at 150 mg L-1, but also for shells immersed 3 h at 50 mg L-1. Likewise, manganese shell marking was revealed under cathodoluminescence for shells immersed 1 h at 120 mg L-1 as well as for shells which spent 4 h at 90 mg L-1. A numerical analysis performed on each marked cockles has revealed 23 micro-increments between the mark and the ventral... |
| Tipo: Text |
Palavras-chave: Calcein; Manganese; Marking; Cathodoluminescence; Shellfish; Cerastoderma edule. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00025/13649/10758.pdf |
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| Mahe, Kelig; Rabhi, Khalef; Bellamy, Elise; Elleboode, Romain; Aumond, Yoann; Huet, Jerome; Roos, David. |
| The brilliant pomfret (Eumegistus illustris) occurs in the western part of the Indian Ocean and the western and central Pacific Ocean. To date, the biology of E. illustris has never been documented. The aim of the present study was to investigate age and growth of E. illustris along the coasts of Reunion Island, based on calcified structures analysis. One hundred thirty five individuals were sampled in the landings of the French local artisanal fisheries from March 2014 to March 2015. The relationships between two types of body length (Total and Standard lengths, cm) and Total weight (g) were significant (P<0.05). Total length-weight relationship was described by the following parameters: a=0.012 and b=3.015 without significant effect of sexual... |
| Tipo: Text |
Palavras-chave: Eumegistus illustris; Growth; Scale; Otolith; Opercular bone; Indian Ocean; Reunion island. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00307/41861/41113.pdf |
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| Caill-milly, Nathalie; Mahe, Kelig; Bellamy, Elise; D'Amico, Franck. |
| L’exploitation de la palourde japonaise (Venerupis philippinarum) dans le bassin d’Arcachon constitue une activité socio-économique importante pour l’Aquitaine avec environ 500 tonnes capturées pour un chiffre d’affaires annuel estimé à 1,5 M€. Au côté des mesures de conservation (taille minimale fixée à 35 mm) décidées au niveau européen, la gestion de cette espèce est effectuée au niveau régional via des mesures adoptées par les structures représentant la pêche professionnelle. Le choix de ces mesures s’appuie largement sur des travaux scientifiques (suivis et recherches) démarrés en 2005. Ces derniers portent notamment sur l’amélioration des connaissances de la dynamique de ce stock et s’intéressent en particulier aux conditions de croissance... |
| Tipo: Text |
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| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00148/25906/23923.pdf |
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| Khoufi, Widien; Elleboode, Romain; Jaziri, Héla; El Fehri, Safouène; Bellamy, Elise; Ben Meriem, Sadok; Romdhane, Mohamed; Mahe, Kelig. |
| Hake (Merluccius merluccius) is widely distributed in the Atlantic Ocean and the Mediterranean Sea. It is one of the most exploited demersal fish. In Tunisia, hake is captured from the north to the south (KHOUFI et al., 2010). Hake is an important species of economic interest and thus the subject of a large literature, but its biology remains insufficiently known, particularly on terms of age and growth estimations, which are essential for stock assessment and management. Otolith microstructure provides a useful tool for age determination of juvenile hake, based on daily increment deposition (ARNERI & MORALES-NIN, 2000; MORALES-NIN et al., 2005; KACHER & AMARA, 2005; BELCARI et al., 2006). Consequently, we studied growth and estimated age, using... |
| Tipo: Text |
Palavras-chave: Merluccius merluccius; Microstructure journalière; Phase pélagique; Taux de croissance; Merluccius merluccius; Daily microstructure; Pelagic phase; Growth rate. |
| Ano: 2012 |
URL: http://archimer.ifremer.fr/doc/00116/22681/20416.pdf |
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| Mahe, Kelig; Elleboode, Romain; Bellamy, Elise. |
| Chez les poissons, l’âge est estimé à partir de l’analyse de pièces calcifiées (écaille, otolithe, vertèbre…). L'otolithe, situé dans l'oreille interne, est le plus utilisé en écologie car il est métaboliquement inerte et sa croissance est continue tout au long de la vie du poisson. Chaque poisson présente 3 paires d'otolithes (sagitta, lapillus et astericus) et leur forme sont différentes et spécifiques à chaque espèce. Le dénombrement des couches concentriques successives présentes sur les pièces calcifiées permettent d'estimer l'âge et la croissance somatique du poisson. Cependant, ces structures à la surface de l'otolithe peuvent présenter des échelles temporelles différentes. Chez les juvéniles, l'analyse des accroissements primaires traduit une... |
| Tipo: Text |
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| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00148/25904/23921.pdf |
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| Rabhi, Khalef; Bellamy, Elise; Elleboode, Romain; Roos, David; Aumond, Yoann; Huet, Jerome; Mahe, Kelig. |
| Ces dernières années, la petite pêche réunionnaise qui ciblait traditionnellement les espèces récifales et démersales peu profondes, a évolué progressivement vers l’exploitation des stocks de poissons plus profonds (au-delà de 200 m). Ces nouvelles espèces économiquement importantes font l’objet d’une forte exploitation mais sont cependant fragiles d’un point de vue biologique (croissance lente, maturité sexuelle tardive, recrutement aléatoire, écosystème sensible, habitats restreint à La Réunion). Ainsi, il y a une nécessité de mettre en place des mesures de gestion rationnelles et durables de ces ressources. Pour répondre à cela, le projet de recherche DMX (Indicateurs biologiques et écologiques pour une gestion durable des stocks de poissons DéMersauX... |
| Tipo: Text |
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| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00256/36687/35293.pdf |
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| Mahe, Kelig; Bellamy, Elise; Delpech, Jean-paul; Lazard, Coline; Salaun, Michele; Verin, Yves; Coppin, Franck; Travers-trolet, Morgane. |
| Weight–Body Length relationships (WLR) of 45 fish species (37 Actinopterygii and eight Elasmobranchii) were investigated. A total of 31,167 individuals were caught and their biological parameters measured during the four quarters from 2013 to 2015, on five scientific surveys sampling the North-eastern Atlantic Ocean from the North Sea to the Bay of Biscay (ICES Divisions IVb, IVc, VIId, VIIe, VIIg, VIIh, VIIj, VIIIa and VIIIb). Among 45 tested species, all showed a significant correlation between total length (L) and total weight (W). The influence of sex on WLR was estimated for 39 species and presented a significant sexual dimorphism for 18 species. Condition factor (K) of females was always higher than for males. Moreover, a spatial effect on the WLR... |
| Tipo: Text |
Palavras-chave: Weight-length relationship; Condition factor; Bay of Biscay; Celtic Sea; English Channel; North Sea; Sexual dimorphism; Seasonality. |
| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00363/47418/47513.pdf |
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| Khoufi, Widien; Dufour, Jean-louis; Jaziri, Hela; Elfehri, Safouene; Elleboode, Romain; Bellamy, Elise; Ben Meriem, Sadok; Romdhane, Mohamed Salah; Mahe, Kelig. |
| Growth parameters of any species are fundamental for biological or dynamic studies. The quality of the estimation for these parameters directly impacts on species stock assessment and, as a consequence, on fisheries management. In order to improve fishery and species stock management, growth analysis, especially by sex, is recommended. In this study, otoliths were used to estimate growth parameters of Merluccius merluccius Rafinesque, 1810. Hake is well-known as being a species in which otolith interpretation is extremely difficult. To estimate growth parameters, the first daily increment was validated as the tool for age determination. Otolith interpretation was done according to the last results of ICES cooperative research report. In total, a sample of... |
| Tipo: Text |
Palavras-chave: Merlucciidae; Merluccius merluccius; Tunisia; Western Mediterranean; Age estimation; Growth model; Otolith. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00191/30238/28662.pdf |
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| Bellamy, Elise; Mahe, Kelig; De Rafelis, Marc; Lartaud, Franck. |
| Cockle (Cerastoderma edule) growth has not been studied a lot yet and the current approach of counting external ridges in order to make age estimation is limited. Nevertheless, growth is a key parameter for monitoring bivalves populations, which are heavily exploited in French estuaries. The Bay of Somme which is located in the eastern Channel in the north of France, is the first French field of cockles (Cerastoderma edule). In order to improve stock management, it is necessary to increase our knowledge of this species. This study is looking at the growth of the common cockle. In this way, recapture of shells previously marked under calcein marker and then breed in natural conditions in the Bay of Somme, was performed in order to determine the shell... |
| Tipo: Text |
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| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00011/12268/9053.pdf |
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| Caill-milly, Nathalie; Bellamy, Elise; D'Amico, Franck; Mahe, Kelig. |
| Arcachon Bay is the first French field of Manila clam (Ruditapes philippinarum) with an annual production comprised between 500 and 1000 tons in the recent years. In order to improve stock management,an in situ experimentation of chemical marking, using calcein, has been undertaken to validate the periodicity of increment deposition and the optimal conditions of chemical marking in Arcachon Bay. Later on, daily growth rates will be analysed regarding to environmental parameters to increase our knowledge on this species.Manila clam were collected and divided into groups of 80 animals (including control group) which size distribution spread over a large range. Identified groups were marked by immersion in a calcein solution (CAS 1461-15-0), using different... |
| Tipo: Text |
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| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00039/15066/12401.pdf |
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| Mahe, Kelig; Rabhi, Khalef; Bellamy, Elise; Elleboode, Romain; Aumond, Yoann; Huet, Jerome; Cresson, Pierre; Roos, David. |
| The oblique-banded grouper, Epinephelus radiatus (Day, 1968), occurred within the whole Indo- West Pacific where it is harvested by small-scale coastal fisheries. The aim of this study was to estimate the growth of this species at Reunion Island (South-West Indian Ocean) since no study investigated this topic so far. Fifty-seven individuals were sampled in the landings of the French local artisanal fisheries from March 2014 to March 2015. The relationships between two types of body length (total and standard lengths, cm) and total weight (g) were significant (p < 0.05). Total length-weight relationship was described by the following parameters: a = 0.01 and b = 3.098. For each individual, morphometry of the whole otolith was described with several... |
| Tipo: Text |
Palavras-chave: Epinephelidae; Epinephelus radiatus; Otolith; Indian Ocean; Ageing; Otolith weight. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00313/42385/41723.pdf |
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| Mahe, Kelig; Bellamy, Elise; Bourjea, Jerome. |
| Ce guide présente les modes et règles de prélèvement des otolithes de légines australes à bord des navires professionnels de pêche puis d’envoi à l’institut scientifique IFREMER (Institut Français de Recherche pour l'Exploitation de la Mer ; www.ifremer.fr). La France qui exploite la légine en particulier dans les terres australes et antarctiques françaises (TAAF) à partir d’armements basés à l’île de La Réunion se doit de fournir des données biologiques et en particulier l’âge, aux instances d’évaluation de stock (CCAMLR - Commission for the Conservation of Antarctic Marine Living Resourceswww.ccamlr.org). |
| Tipo: Text |
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| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00180/29135/27543.pdf |
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| Mahe, Kelig; Bellamy, Elise; D'Amico, Franck; Caill-milly, Nathalie. |
| Arcachon Bay, in the southern Bay of Biscay, is the first French production area of Manila clam (Ruditapes philippinarum) with an annual commercial fisheries production around 400 tons in recent years. This bivalve mollusc was introduced into the bay in the 1980s for aquaculture purpose and quickly succeeded in natural settlement so that its high market value led to the progressive establishment of a perennial fishery from the mid-1990s. Local management plans applied to this species are based on a licensing system for the commercial, protected fishery areas and days of prohibited fishing for both commercial and recreational fishermen. A minimum catch size is also prescribed by European regulation, and so growth rates are an important matter in this... |
| Tipo: Text |
Palavras-chave: Calcein; In-situ marking; Ruditapes philippinarum; Bivalve mollusks; Fisheries. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00665/77693/79770.pdf |
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| Bellamy, Elise; Mahe, Kelig; Lefebvre, Alain. |
| Cockle (Cerastoderma edule) growth has not been studied a lot yet and the current approach of counting external ridges in order to make age estimation is limited. Nevertheless, growth is a key parameter for the monitoring of bivalve populations, which are heavily exploited in French estuaries. This morphometric study is based on the analysis of cockles shells collected in the Bay of Somme. This site, which has an area of 70 km², is located in the eastern Channel in the north of France, and is one of the most important French cockles fields. This analysis is part of a study of the dynamic of cockles stocks in the Bay of Somme, which shows sharp inter-annual abundance fluctuations. High-resolution pictures analysis were performed with the TNPC software... |
| Tipo: Text |
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| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/00011/12269/9055.pdf |
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| Bellamy, Elise; Lefebvre, Alain; Mahe, Kelig. |
| Strong mortalities have occured May, 2008 in the bay of Somme, in two distinct areas named “CH4” and “Voie de Rue”. This document lays out methods and results of the sampling realised in both areas. CH4 as Voie de Rue show strong death rates, respectively 99,74 % (mostly animals size bounded between 20 and 36 mm)and 93,18 % (mostly animals size bounded between 22 and 30 mm), in comparison with the 8,5 % due to natural mortality in reference area. Zoosanitary analysis of the cockle point out that infectious hypothesis would not be the reason of these mortalities. |
| Tipo: Text |
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| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/00011/12274/9065.pdf |
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| Bellamy, Elise; Caill-milly, Nathalie; Lissardy, Muriel; Mahe, Kelig. |
| Ce poster présente les pièces calcifiées utilisées pour estimer l'âge des principales espèces de poissons du sud du golfe de Gascogne. La sclérochronologie, du grec “scleros” = pièces dures, “chronos” = temps, “logos” = étude, est la discipline s’intéressant à la croissance des organismes. Chez les poissons osseux, les estimations d’âge sont réalisées à partir de leurs pièces calcifiées et chaque année, ce sont quelques 35 000 pièces qui sont traitées par l’institut Ifremer. Pour la majorité des espèces, l’otolithe, composant de l’oreille interne, est la pièce calcifiée utilisée. |
| Tipo: Text |
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| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00256/36688/35296.pdf |
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| Registros recuperados: 28 | |
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