Author(s): Rosa, Leonardo Cruz da ; Bemvenuti, Carlos Emilio
Date: 2012
Origin: Oasisbr
Subject(s): Burrowing crab; Biological disturbances; Infaunal recruitment; Intertidal habitats; Patos Lagoon; Burrowing crab; Burrowing crab; Biological disturbances; Biological disturbances; Infaunal recruitment; Infaunal recruitment; Intertidal habitats; Intertidal habitats; Patos Lagoon; Patos Lagoon
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Approved for entry into archive by Michele Fernanda(michele_fernandas@hotmail.com) on 2012-12-19T14:30:11Z (GMT) No. of bitstreams: 1 Infaunal recruitment patterns in soft bottom habitats of the Patos Lagoon estuary.pdf: 109431 bytes, checksum: b197ba5c349f91bc9caf283262c22473 (MD5)
Made available in DSpace on 2012-12-19T14:30:11Z (GMT). No. of bitstreams: 1 Infaunal recruitment patterns in soft bottom habitats of the Patos Lagoon estuary.pdf: 109431 bytes, checksum: b197ba5c349f91bc9caf283262c22473 (MD5) Previous issue date: 2004
A comparative study of the infaunal recruitment patterns among disturbed surface sediment mounds around Chasmagnathus granulata Dana, 1851 burrows and undisturbed adjacent sediments was done in two intertidal soft bottom habitats (an upper and a lower mudflat zone) in an estuarine inlet of Patos Lagoon, southern Brazil. The most abundant infaunal organisms were recruits of the polychaete Laeonereis acuta Treadwell, 1923 and of the tanaid Kalliapseudes schubartii Mañé-Garzón, 1949. The densities of these species did not differ significantly between upper and lower mudflat habitats. These species showed lower densities around crab burrows than in adjacent areas, where differences in sediment characteristics were observed as well. The results indicate that C. granulata disturbances may play an important role in regulating the soft bottom benthic community by controlling infaunal recruitment in the estuarine intertidal mudflats of the Patos Lagoon.
