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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; 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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