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Growth in a modular colonial marine invertebrate
Coma, R.; Ribes, M.; Zabala, M.; Gili, J.-M. (1998). Growth in a modular colonial marine invertebrate. Est., Coast. and Shelf Sci. 47(4): 459-470. https://dx.doi.org/10.1006/ecss.1998.0375
In: Estuarine, Coastal and Shelf Science. Academic Press: London; New York. ISSN 0272-7714; e-ISSN 1096-0015, meer
Peer reviewed article  

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Trefwoorden
    Alcyonacea [WoRMS]
    Marien/Kust
Author keywords
    modular colonial growth; growth rates; production; size; gorgonian; turnover time; production/biomass; Mediterranean Sea

Auteurs  Top | Dataset 
  • 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.

Dataset
  • Linares, Cristina; Figuerola, Laura; Gómez-Gras, Daniel; Pagès-Escolà, Marta; Olvera, Àngela, Aubach, Àlex; Amate, Roger; Figuerola, Blanca; Kersting, Diego; Ledoux, Jean-Baptiste; López-Sanz, Àngel; López-Sendino, Paula; Medrano, Alba; Garrabou, Joaquim; (2020); CorMedNet- Distribution and demographic data of habitat-forming invertebrate species from Mediterranean coralligenous assemblages between 1882 and 2019, meer

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