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Details van artikel 2 van 19 gevonden artikelen
| Titel: |
Comparative effects of inducers on metamorphosis of the Japanese oyster Crassostrea gigas and the great scallop Pecten maximus |
| Auteur: |
Nicolas, L. Robert, R. Chevolot, L. |
| Verschenen in: |
Biofouling |
| Paginering: | Jaargang 12 (1998) nr. 1-3 pagina's 189-203 |
| Jaar: |
1998-01 |
| Inhoud: |
Variable postlarval mortalities have been recorded regularly in Pecten maximus hatcheries. In an attempt to resolve this problem, the role of physical factors on spat development and the ability of neuro-transmitters to increase metamorphosis have been considered. Although such investigations have been widely reported on oysters, few studies have been carried out on Pectinidae. The present work evaluates the effects of epinephrine, L-Dopa and jacaranone on the metamorphosis of Crassostrea gigas and P. maximus. At concentrations of 1-10mgl-1 (5.5-55 μM), epinephrine increased the rate of metamorphosis significantly in both species (30 to 60%). When exposed to this compound, 90% of cultchless C. gigas spat were found, while no free P. maximus spat were observed. L-Dopa and jacaranone were less effective on both species with a maximal 10 to 15% increase in metamorphosis at 2.5 μM. Compared to C. gigas, P. maximus was less sensitive to chemical inducers and, thus, the use of neurotransmitters for inducing metamorphosis in Pectinidae seems to be of limited interest. |
| Uitgever: |
Taylor & Francis |
| Bronbestand: |
Elektronische Wetenschappelijke Tijdschriften |
Details van artikel 2 van 19 gevonden artikelen
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