Data/hora: 13/06/2024 01:31:44

Provedor de dados: | 20
País: | Belgium

Título:

Comunidad macroinfaunal de fondos blandos someros tropicales (Caribe colombiano)

Macroinfaunal communities of shallow tropical soft bottoms (Colombian Caribbean)

Autores: | Guzmán-Alvis, A.I.; Solano, O.D.; Córdoba-Tejada, M.E.; López-R., A.C.
Data: | 2009-07-21
Ano: | 2001
Palavras-chave: | Population structure; Population structure; Http://aims.fao.org/aos/agrovoc/c_6115.
Resumo: | With the aim to characterize tthe soft-bottom macrofauna and its spatial and temporal distribution patterns in the Santa Marta area, a two years sampling program was performed at depths between 7 to 60 m. Density, biomass and diversity of the community were determined. The BIOENV method was applied in order to relate the distribution of the associations and the environmental variables (depth, turbidity, organic matter, organic carbon, organic nitrogen, organic phosphorus and median particle diameter). A density of 1499 indiv *m-2 and 10.9 g*m-2 wet biomass were obtained. The collected organisms belonged to six taxa: polychaetes, crustaceans, sipunculids, molluscs, bryozoans, and echinoderms; the first one was the most important in terms of abundance and biomass. Four clusters were obtained following a depth gradient, but no clear temporal pattern becams evident. Due to a large number of generalist genera among thye clusters, a sole community conformed by several zones with diffuse boundaries was defined. Depth is the variable which better explains the distribution of the community; the corresponding correlationcoeficient was high in comparison with other macrobenthos studies carried out in the Caribbean as well as in template, unpolluted areas. In the Caribbean depth alone, or with other vriable, exhibits the best relationship with the biological structural patterns.
Tipo: | Journal Contribution
Idioma: | Espanhol

Identificador:

Boletín de investigaciones marinas y costeras, 30. p. 39-66

0122-9761

http://hdl.handle.net/1834/3121

Editor: | INVEMAR, Santa Marta - Colombia
Relação: | http://www.invemar.org.co/siad/descarga.jsp?type=documento&amp;id=620