|
|
|
| Registros recuperados: 33 | |
|
| |
|
|
| Joly, Jean-pierre; Bouget, Jean-francois; Hirata, Toshio. |
| L’implantation récente de Rapana venosa, gastéropode prédateur originaire d’Extrême Orient, en plusieurs points du globe (USA, France, Uruguay, Argentine) et son impact sur les populations de bivalves autochtones justifient un certains nombre de recherches engagées par les pays concernés. Le présent rapport compile les dernières informations scientifiques disponibles sur la biologie de R. venosa. Par ailleurs, l’opportunité d’obtenir des pontes en milieu naturel et en captivité en 2001 a permis de faire des observations sur la maturation des larves. Il apparaît que dans les conditions de températures régnant en Baie de Quiberon en été (18 à 22°C), les larves de Rapana venosa sont capables d’éclore. L’impossibilité, dans cette expérimentation, d’amener ces... |
| Tipo: Text |
Palavras-chave: Rapana venosa; Biologie; Larve; Eclosion; Rapana venosa; Biology; Larva; Hatching. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00016/12699/9620.pdf |
| |
|
| |
|
| |
|
| |
|
|
| Martin, Jocelyne; Planque, Benjamin. |
| Long-term monitoring of zooplankton and temperature has been carried out at the nuclear power station of Flamanville (west coast of Cotentin, English Channel, France) since 1977. Zooplankton sampling and temperature measurements took place at fortnightly intervals, particularly during the spring and summer. In addition, daily records of water temperature were recorded since 1986. The seasonal appearance of Maja brachydactyla Balss, 1922 first stage zoeae in the plankton outside the thermal plume near to the power station can greatly vary from year-to-year. Earliest observations have occurred in early June whilst latest observations were made at the end of July. During the period of study, temperature records display a warming trend whilst hatching is... |
| Tipo: Text |
Palavras-chave: Temperature; Larvae; Hatching; Maja brachydactyla. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-1349.pdf |
| |
|
|
| Suquet, Marc; Dreanno, Catherine; Petton, Bruno; Normant, Yvon; Omnes, Marie-helene; Billard, Roland. |
| The survival of turbot eggs and the rearing capacities of larvae stemmed from artificial fertilization practices using frozen-thawed spermatozoa were evaluated. Furthermore, the viability of sperm samples stored during a 9 month period in liquid nitrogen was assessed. No significant difference in the fertilization rate, hatching rate, survival and wet weight of 10-day old larvae were observed using fresh or frozen-thawed spermatozoa. The motility recorded at 10 s and 60 s post-activation and the fertilization capacity of frozen-thawed spermatozoa were not significantly decreased during a 9 month storage period in liquid nitrogen. These results confirm the high quality of the turbot spermatozoa stemmed from the cryopreservation process, allowing their use... |
| Tipo: Text |
Palavras-chave: Turbot; Psetta maxima; Sperm; Cryopreservation; Hatching. |
| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/00176/28721/27176.pdf |
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Fonseca,Alinca Peres da; Volcan,Matheus Vieira; Romano,Luís Alberto; Robaldo,Ricardo Berteaux. |
| ABSTRACT Laboratory breeding of annual fish is often impaired when fish fail to inflate the swim bladder after hatching. These fish, which are known as belly-sliders, cannot swim in the water column, moving mainly on the bottom of water. Therefore, we wanted to understand the factors underlying failed inflation of swim bladder in the annual fish Austrolebias nigrofasciatus and determine the implications of this condition on the growth of juveniles. To identify how the initial filling of the gaseous vesicle is compromised, and to determine the implications of this condition on juvenile growth, we analysed the histology of the swim bladder of both normal swimming fish and belly-sliders during their initial growth phase (first month of life). In addition to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Belly-sliders; Hatching; Killifish; Laboratory breeding; Pathology. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252018000400205 |
| |
|
| |
|
|
| Aziz, F.K.; Zaki, M.I.; El-Absawy, M. El-G.. |
| Sparus aurata females in captivity were injected with human chorionic gonadotropin hormone (HCG), pituitary extraction and both them during the spawning season. First hormonal treatment was applied as cumulative doses required for successful ovulation ranged from 4500 to 7500 IU\fish, the maximum fertilization percent was 71. The ovulation period under the influence of this treatment extended up to 14 days. In the second experiment, the total dose requirement for successful ovulation ranged from 2 to 4 pituitary extractions. Fish and the maximum fertilization percent recorded was 81, while the longest ovulation period obtained was 15 days. In the third experiment the total doses required for successful ovulation ranged from 2 pituitary extractions and 4500... |
| Tipo: Journal Contribution |
Palavras-chave: Field Study; Biological fertilization; Spawning; Hatching; Larval development; Survival; Spawning; Hatching; Survival. |
| Ano: 2007 |
URL: http://hdl.handle.net/1834/1908 |
| |
|
| |
|
|
| Medina Cruz, Y.; Moncada Gavilán, F.; Nodarse Abreu, G.. |
| Se analizó la “Conducta selección del sitio de anidación” y su influencia sobre el éxito de eclosión en nidos de tortuga carey Eretmochelys imbricata en nueve playas índices del archipiélago Jardines de la Reina (El Guincho, Caballones Oeste, Caballones Este, El Dátiri, Los Pinos, Cachiboca, El Faro, La Ballena y Boca Seca). Se comprobó que la tortuga carey prefiere anidar en zonas de vegetación (Zona C), en la cual el número de nido resultó estadísticamente superior a la zona desprovista de vegetación (Zona B) y la zona intermareal (Zona A), encontrándose diferencias significativas entre la zona A y B solo en dos playas (El Guincho y la Ballena) con un nivel de confianza del 95 %. El éxito de eclosión entre la zona C y B, solo resultó estadísticamente... |
| Tipo: Journal Contribution |
Palavras-chave: Nesting; Turtle fisheries; Beaches; Hatching; Beaches; Nesting; Hatching; Http://aims.fao.org/aos/agrovoc/c_850; Http://aims.fao.org/aos/agrovoc/c_5140; Http://aims.fao.org/aos/agrovoc/c_3504. |
| Ano: 2010 |
URL: http://hdl.handle.net/1834/4095 |
| |
|
| |
|
|
| Vanhaecke, P.; Sorgeloos, P.. |
| A comparative hatching study has been carried out with reference <i>Artemia</i> cysts as well as cysts from Argentina, Australia, Brazil, Canada, France, Italy, the People' s Republic of China, the Philippines and the USA. Hatching rate, percentage and efficiency vary considerably from one cyst source to another. These hatching criteria are, however, not strainspecific since significant variation is found among cyst batches from the same geographical origin. The limitations of the "hatching efficiency" concept are discussed and a new criterion "hatching output", i.e. the biomass of nauplii expressed in mg dry weight produced per gram cyst product, is proposed for evaluation of the hatching quality of <i>Artemia</i> cyst brands. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Efficiency; Hatching; Artemia. |
| Ano: 1983 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3399 |
| |
|
|
| Lavens, P.; Tackaert, W.; Sorgeloos, P.. |
| Using cyst material produced in an indoor cyst production system from 4 <i>Artemia</i> strains belonging to the species <i>A. franciscana</i> (San Francisco Bay, California, USA; Macau, Brazil; Great Salt Lake, Utah, USA) and <i>A. parthenogenetica</i> (Lavalduc, France), different factors were studied that affect dormancy in brine shrimp cysts. Preliminary experiments under varying (a)biotic culture conditions revealed an interaction between environmental conditions and hatching characteristics. Results obtained under better-defined conditions demonstrated a significant positive correlation between the amount of food available to the adult <i>Artemia</i> populations and the hatchability of their encysted... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cysts; Diapause; Food availability; Hatching; Artemia; Artemia franciscana; Artemia parthenogenetica. |
| Ano: 1986 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3227 |
| |
|
| |
| Registros recuperados: 33 | |
|
|
|
