期刊
HELGOLAND MARINE RESEARCH
卷 63, 期 4, 页码 293-308出版社
BMC
DOI: 10.1007/s10152-009-0158-7
关键词
Annelida; Polychaeta; Oligochaeta; Intertidal zone; Faunal composition; New species; Spain
资金
- Xunta de Galicia [CGL2004-04680-C10-02]
- Spanish Ministry of Education and Science and FEDER [CGL.2006-13417]
- European Community [DK-TAF-3118]
The species composition and relative abundance of the annelid benthic macrofauna (Polychaeta and Oligochaeta) inhabiting the rocky intertidal zone of the ria of Ferrol (Galicia, NW Spain) were studied during field collections, from 2000 to 2002. A total of 14,619 specimens (11,585 polychaetes belonging to 76 species and 24 families and 3,034 oligochaetes belonging to 18 species and two families) were collected from 98 quantitative samples taken from 13 sampling sites. The general spatial distribution of the annelid fauna reflects an increase of the diversity from the inner to the outer part of the ria. The general patterns found in the annelid composition suggest that the assemblages were dominated by oligochaetes in the inner sheltered sampling sites and polychaetes in the outer more exposed sites. Several faunistical and taxonomical remarks on selected species are presented. Two new species of oligochaetes are described: Coralliodrilus artabrensis sp. n. and Pirodrilus fungithecatus sp. n. (Naididae, Phallodrilinae). A new biological index, based on the oligochaete/polychaete ratio (O/P), is proposed as tool to evaluate environmental quality and to monitor future changes in the environment.
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