Title
Composition and distribution of macrobenthos in the Bay of Sechura, Piura, Peru
Other title
Composición y distribución del macrobentos en la Ensenada de Sechura, Piura, Perú
Date Issued
01 August 2007
Access level
metadata only access
Resource Type
journal article
Author(s)
Publisher(s)
Facultad de Ciencias Biologicas, Universidad Nacional Mayor de San Marcos
Abstract
It was analyzed the spatial distribution of the benthic macrofauna of the Bay of Sechura (5°12’ - 5°50’S and 81°12’ - 80°51’W) right after the end the 1997-98 El Niño. Temperature, dissolved oxygen, sand content (%), exhibited a decreasing trend from shallow to deep stations, while organic matter content, equitability and diversity increased with depth. The Polychaeta were the most abundant taxonomic group (81 %). The composition was very heterogenous at shallower depths (5 - 11 m), and the polychaete Polydora socialis tended to dominate in sandy and rocky bottoms with 54 %. Polychaetes from the family Capitellidae (17 %) dominated at intermediate depths (21 - 35 m), while the spionid polychaete Paraprionospio pinnata (27 %) was the dominant species at deeper locations (42-72 m). The dominant feeding guilds were surface deposit feeders and interface feeders. In comparison with information collected at the onset of El Niño 1997-98, there were differences in the composition of dominant species, especially at intermediate depths, but there were not found significant differences in the community parameters.
Start page
75
End page
85
Volume
14
Issue
1
Language
Spanish
OCDE Knowledge area
Agricultura, Silvicultura, Pesquería
Subjects
Scopus EID
2-s2.0-39549085767
Source
Revista Peruana de Biologia
ISSN of the container
15610837
Sources of information:
Directorio de Producción Científica
Scopus