Description
This dataset examines the effect of three different early life rearing temperatures on the process of sex differentiation of two populations of Europea seabass from the Mediterranean Sea, and the resulting growth and sex ratio. In particular, European sea bass Dicentrarchus labrax of the north-western (NW) and south-eastern (SE) Mediterranean Sea strains were exposed to different temperatures (13, 17 or 21oC) during the larval rearing (11—51 days post hatching, dph) or nursery periods (55—95 dph), in order to examine the effects of temperature on sex differentiation and subsequent growth during the first year of life.
Versions
Le tableau ci-dessous n'affiche que les versions publiées de la ressource accessibles publiquement.
Comment citer
Les chercheurs doivent citer cette ressource comme suit:
Journal of Fish Biology (2005) 67, 652—668 doi:10.1111/j.1095-8649.2005.00766.x, availableonline athttp://www.blackwell-synergy.com
Droits
Les chercheurs doivent respecter la déclaration de droits suivante:
L’éditeur et détenteur des droits de cette ressource est Hellenic Center for Marine Research. En vertu de la loi, l'éditeur a abandonné ses droits par rapport à ces données et les a dédié au Domaine Public (CC0 1.0). Les utilisateurs peuvent copier, modifier, distribuer et utiliser ces travaux, incluant des utilisations commerciales, sans aucune restriction.
Enregistrement GBIF
Cette ressource n'a pas été enregistrée sur le portail GBIF
Mots-clé
Metadata; Dicentrarchus; sex differentiation; growth; temperature; Metadata
Contacts
- Fournisseur Des Métadonnées ●
- Créateur ●
- Personne De Contact
- Fournisseur De Contenu
- Fournisseur De Contenu
- Fournisseur De Contenu
- Fournisseur De Contenu
- Fournisseur De Contenu
- Fournisseur De Contenu
- Fournisseur De Contenu
- Fournisseur De Contenu
- Fournisseur De Contenu
Couverture géographique
The experiments were undertaken in two locations, using two strains of European sea bass from the north-western (NW) and south-eastern (SE) Mediterranean Sea. NW strains are from the coasts of Israel and the SE from the Lake Edku (Nile River estuarine zone, Egypt).
| Enveloppe géographique | Sud Ouest [30,77, 29,553], Nord Est [32,528, 35,112] |
|---|
Couverture taxonomique
European sea bass Dicentrarchus labrax
| Species | Dicentrarchus labrax (European sea bass) |
|---|
Couverture temporelle
| Date de début / Date de fin | 2001-01-01 / 2003-01-01 |
|---|
Données sur le projet
A very important problem of the European sea bass (Dicentrarchus labrax) aquaculture industry is the occurrence of 70-99% males. Male-dominant stocks are undesirable, because males exhibit reduced somatic growth compared to females, resulting in 20-40% smaller body weight at harvest. Therefore, it is desirable to culture predominantly female stocks. The overall objective of PROBASS is to understand the mechanisms regulating sex differentiation in cultured sea bass, in order to develop methodologies to minimise the proportion of males in cultured stocks. This will result in an increase in production efficiency and profitability of the EU sea bass industry, since femaledominant stocks will reach market size earlier and produce more muscle mass. There is accumulating evidence that sex differentiation in sea bass may be under the control of complex genetic and environmental interactions.
| Titre | PROBASS |
|---|---|
| Identifiant | Grant agreement ID: Q5RS-2000-31365 |
| Financement | EU FP5 |
Les personnes impliquées dans le projet:
- Chercheur Principal
Méthodes d'échantillonnage
The NW strain was maintained at the Institute of Aquaculture, Hellenic Center for Marine Research (previously Institute of Marine Biology of Crete), Crete, Greece, and the SE strain at the National Center for Mariculture, Eilat, Israel. The broodstock of the SE strain were the offsprings of wild fish originally collected in the mid 1980s from the brackish-water Lake Edku (Nile River estuarine zone, Egypt).Parameters measured: Sex ratio:%, Length: mm, Weight: g
| Etendue de l'étude | The experiments were undertaken in two locations, using two strains of European sea bass from the north-western (NW) and south-eastern (SE) Mediterranean Sea. The SE strain was compared with the NW because it inhabits waters of higher annual temperatures (coast of Israel and Egypt) and could have adapted to different thermal preferences. |
|---|
Description des étapes de la méthode:
- NORTH-WESTERN MEDITERRANEAN SEA STRAIN: Fertilized eggs were obtained on 22 February, 2001 from a spontaneously spawning stock of wild origin, exposed to ambient temperature and photic conditions throughout the year. SOUTH-EASTERN MEDITERRANEAN SEA STRAIN: Fertilized eggs were obtained on 14 March, 2001 from a broodstock maintained in tanks under natural photoperiod and a thermal regime simulating the annual fluctuations of temperature in the Mediterranean Sea.
Métadonnées additionnelles
| Identifiants alternatifs | http://192.135.166.161/resource?r=fish_probass1 |
|---|