Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
The physiology of the larva of the Chilean oyster Ostrea chilensis and the utilisation of biochemical energy reserves during development: an extreme case of the brooding habit
Chaparro, O.R.; Navarrete, L.R.; Thompson, R.J. (2006). The physiology of the larva of the Chilean oyster Ostrea chilensis and the utilisation of biochemical energy reserves during development: an extreme case of the brooding habit. J. Sea Res. 55(4): 292-300. https://dx.doi.org/10.1016/j.seares.2005.11.003
In: Journal of Sea Research. Elsevier/Netherlands Institute for Sea Research: Amsterdam; Den Burg. ISSN 1385-1101; e-ISSN 1873-1414, meer
|  |
| Trefwoorden |
Biological development > Larval development
Biology > Physiology
Brood care
Chemical elements > Nonmetals > Atmospheric gases > Oxygen
Energy
Excretion
PSW, Chile, Chiloe I.
Ostrea chilensis Küster, 1844 [WoRMS]
Marien/Kust |
| Auteurs | | Top |
- Chaparro, O.R.
- Navarrete, L.R.
- Thompson, R.J.
|
|
|
| Abstract |
In the oyster Ostrea chilensis the adult female broods the young for almost the entire developmental period, releasing a large pediveliger larva (450 μm shell length) with an extremely short pelagic phase. In this study of the larval physiology, the dry weight of the embryo or larva remained constant during the early developmental stages (as far as, and including, the trochophore), but the veliger grew steadily to reach 8 μg at 450 μm shell length, the stage at which it was ready for release. During this growth period the veliger consumed metabolic reserves (62% protein and 38% lipid). Carbohydrate levels were negligible. Chilean oyster veligers larger than 275 μm shell length were able to remove particles from suspension, but clearance rate (2 μl h-1 larva-1 at 450 μm shell length) was much lower than published values for planktotrophic veligers. Low clearance rate in the veliger of O. chilensis is probably attributable to the absence of the postoral ciliary band. Oxygen uptake increased from 19-22 nl O2 h-1 ind-1 for pre-veliger stages to 32 nl O2 h-1 ind-1 for a veliger 450 μm long, which is consistent with published values for veligers in general when corrected for body weight. Excretion rate was low, increasing from 0.04 ng NH4-N h-1 larva-1 in the trochophore to 0.13 ng NH4--N h-1 larva-1 in a pediveliger of shell length 450 μm. Biochemical energy reserves were insufficient to meet the metabolic demands of the developing larva, suggesting that uptake of particles and/or dissolved organic matter from the mantle cavity of the female is necessary for successful development. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
