Data/hora: 11/06/2024 08:23:09

Provedor de dados: | 5
País: | France
Título: | Effect of shear velocity and flow regimes on scallop post-larval detachment feed on two different diets
Autores: | Gagne, Renee; Tremblay, Rejean; Olivier, Frederic; Pernet, Fabrice; Miner, Philippe; Samain, Jean-francois.
Data: | 2012-12
Ano: | 2012
Palavras-chave: | Attachment; Pecten maximus; Benthic boundary layer; Flume; Diet.
Resumo: | Through biological flume experiments, we studied the effect of shear velocity and attachment period on the percent detachment of Pecten maximus post-larvae of different sizes reared on two experimental diets. The first diet, (Pavlova lutheri, Isochrysis galbana, Chaetoceros calcitrans), which served as a reference diet (PTC), is commonly used in bivalve hatcheries; the second is the PTC diet with the addition of Rhodomonas salina (PTCR). Our results indicate that the detachment of post-larvae fed PTCR diet showed significant interactions between scallop length, attachment period and shear stress, while the post-larvae feed with the PTC diet showed only effect of shear stress factor. Furthermore, post-larvae exposed to various flume velocities showed different percentages of detachment according to diet (PTC=36% and PTCR=57%) for flow velocities between 1.42 to 2.45 cm s(-1) after 12 h attachment periods. This result could be related to differences in the biochemical composition of post-larvae as discussed. (C) 2012 Elsevier B. V. All rights reserved.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00111/22219/20056.pdf

DOI:10.1016/j.aquaculture.2012.10.017

Editor: | Elsevier Science Bv
Relação: | http://archimer.ifremer.fr/doc/00111/22219/
Formato: | application/pdf
Fonte: | Aquaculture (0044-8486) (Elsevier Science Bv), 2012-12 , Vol. 370-371 , P. 172-178
Fonte: | 2012 Elsevier B.V. All rights reserved