Staff Publications

  • external user (warningwarning)
  • Log in as
  • language uk
Record number 399968
Title Heritability of shape in common sole, Solea solea, estimated from image analysis data
Author(s) Blonk, R.J.W.; Komen, J.; Tenghe, A.; Kamstra, A.; Arendonk, J.A.M. van
Source Aquaculture 307 (2010)1-2. - ISSN 0044-8486 - p. 6 - 11.
Department(s) Animal Breeding and Genetics
IMARES Aquaculture
Publication type Refereed Article in a scientific journal
Publication year 2010
Keyword(s) quantitative genetic-parameters - oreochromis-niloticus l. - large rainbow-trout - salmon salmo-salar - body measurements - fillet traits - color - morphometrics - quality - growth
Abstract The spider crab Maja squinado is an endangered Mediterranean species; therefore, culturing it successfully is essential for developing restocking programs. The survival, growth and development of post-larval stages (juvenile crabs, C1–C8) were studied using larvae obtained from adult individuals collected in the Catalan Sea. The juvenile crab stages were cultured individually from a megalopal stage using a semi-open recirculation system to obtain the precise growth data of each juvenile crab stage until C8. Development up to C8 at 20 °C lasted 154 ± 10 days. Survival from C1 to C8 was 5.8%. Moult increment values in cephothoracic length were similar in all the crab stages (21–35%). Intermoult duration (9 ± 1 in C1–C2 to 51 ± 8 days in C7–C8) increased sharply from juvenile stage 5. Males and females can be distinguished from C4 based on sexual dimorphism in the pleopods and the presence of gonopores. The allometric growth of the pleon is sex-dependent from C4, with females showing positive allometry and males isometric growth. The juvenile growth rate was lower compared with that of the previously studied Atlantic species Maja brachydactyla.
There are no comments yet. You can post the first one!
Post a comment
Please log in to use this service. Login as Wageningen University & Research user or guest user in upper right hand corner of this page.