Descripción
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.
Versiones
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¿Cómo referenciar?
Los usuarios deben citar este trabajo de la siguiente manera:
Journal of Fish Biology (2005) 67, 652—668 doi:10.1111/j.1095-8649.2005.00766.x, availableonline athttp://www.blackwell-synergy.com
Derechos
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El publicador y propietario de los derechos de este trabajo es Hellenic Center for Marine Research. En la medida de lo posible según la ley, el publicador ha renunciado a todos los derechos sobre estos datos y los ha dedicado al Dominio público (CC0 1.0). Los usuarios pueden copiar, modificar, distribuir y utilizar la obra, incluso con fines comerciales, sin restricciones.
Registro GBIF
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Palabras clave
Metadata; Dicentrarchus; sex differentiation; growth; temperature; Metadata
Contactos
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Cobertura geográfica
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).
| Coordenadas límite | Latitud Mínima Longitud Mínima [30,77, 29,553], Latitud Máxima Longitud Máxima [32,528, 35,112] |
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Cobertura taxonómica
European sea bass Dicentrarchus labrax
| Especie | Dicentrarchus labrax (European sea bass) |
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Cobertura temporal
| Fecha Inicial / Fecha Final | 2001-01-01 / 2003-01-01 |
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Datos del proyecto
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.
| Título | PROBASS |
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| Identificador | Grant agreement ID: Q5RS-2000-31365 |
| Fuentes de Financiación | EU FP5 |
Personas asociadas al proyecto:
- Investigador Principal
Métodos de muestreo
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
| Área de Estudio | 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. |
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Descripción de la metodología paso a paso:
- 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.
Metadatos adicionales
| Identificadores alternativos | http://192.135.166.161/resource?r=fish_probass1 |
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