Hatchery production of European lobster (Homarus gammarus, L.): broodstock management and effects of different holding systems on larval survival

Autor:	John Hickey, Rodolfo Ballestrazzi, Gianni Contarini, Nicoletta Perrella
Rok vydání:	2008
Předmět:	Larva Total body Broodstock Biology biology.organism_classification Reproductive season Hatchery Fishery Stocking Animal science Homarus gammarus Animal Science and Zoology lcsh:Animal culture Carapace lcsh:SF1-1100
Zdroj:	Italian Journal of Animal Science, Vol 7, Iss 3, Pp 351-362 (2010)
ISSN:	1828-051X 2001-3000
DOI:	10.4081/ijas.2008.351
Popis:	The biometry of wild berried females was collected during an entire reproductive season at the South-Wexford Lobster Co-op hatchery in Nethertown, Ireland. Second degree regressions between total body weight (TW, g) and carapace length (CL, mm) (TW=CL2 -36.675CL+1793.2, R2=0.9022) and number of “weaned” larvae and carapace length (Larvae number=1.217CL2–21.777CL-5281.1, R2 =0.743) were observed. Afterwards, berried females were divided according to two variables: 1. holding system: recirculating system (Rs) vs barrel (Bar); 2. CL size: 120 mm (C). The total weight of larvae (212.5 vs 92.4 g) and their numbers (7788 vs 5679) were significantly higher for the largest females than for the smaller sizes (P
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2d9178785e338d9f2bc52d3e79604fb https://doi.org/10.4081/ijas.2008.351 Zobrazit plný text záznamu