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
Growth in a modular colonial marine invertebrate
In: Estuarine, Coastal and Shelf Science. Academic Press: London; New York. ISSN 0272-7714; e-ISSN 1096-0015, meer
|  |
| Trefwoorden |
Alcyonacea [WoRMS]
Marien/Kust |
| Author keywords |
modular colonial growth; growth rates; production; size; gorgonian; turnover time; production/biomass; Mediterranean Sea |
| Auteurs | | Top |
- Coma, R.
- Ribes, M.
- Zabala, M.
- Gili, J.-M.
|
|
|
| Abstract |
Growth rate, temporal variability and secondary production were quantified for the Mediterranean gorgonianParamuricea clavataoff Medes Islands, NW Mediterranean. Fifty-four colonies ranging in size between 5 and 860 cm in total length (3–55 cm maximum height) were monitored photographically for 2 years. Growth varied between and within years. Primary branches accounted for 91% of production, though their growth rates were highly variable (on average 23% of branches displayed zero growth). The gross growth rate of primary branches in colonies <20 cm was higher (0·8 cm year−1) than that of colonies >20 cm (0·5 cm years−1). On average, net growth of primary branches (0·4 cm year−1) was approximately 60% of positive growth. There was a significant size-specific negative growth effect in which smaller colonies displayed higher rates of loss. Mean growth in colony height was 1·8 cm year−1(range: 0·2–6·4 cm year−1). Based on growth rate data, the largest colonies in the population (55 cm) were around 31 years old. On average, net production for all colonies was 75% of gross production. Gross production was 4·4 g AFDW m−2year−1, the production/biomass value was 0·11, and the turnover time was 9 years. Growth rate and its variation with colony size are discussed within the framework of the life history traits of the species. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
