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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Organic matter affects fiddler crab distribution? Results from field and laboratorial trials

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Author(s):
Carretero Sanches, Fabio Henrique [3]
Total Authors: 1
Affiliation:
[1] Fed Univ ABC CCNH UFABC, Ctr Nat & Human Sci, BR-09210170 Santo Andre, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: ESTUARINE COASTAL AND SHELF SCIENCE; v. 212, p. 138-145, NOV 15 2018.
Web of Science Citations: 3
Abstract

Fiddler crabs are a key benthic macrofauna group in estuarine environments. Species distribution is determined by relatively distinct zones, based on biotic and abiotic factors. As sediment organic matter is thought to be one of the most important zoning factors of mangrove macrofauna, we tested the effects of organic matter content on the infra-specific distribution of the fiddler crabs Leptuca thayeri and Leptuca uruguayensis. Organic matter content and crab abundance and size were assessed in both species by field observations, while the choice of adult or juvenile L. uruguayensis for high -or low- organic matter was tested in the laboratory. Both species showed no relationship between organic matter and crab abundance or size. Furthermore, L. uruguayensis juveniles or adults did not show any preference for specific organic matter content. Therefore, fiddler crabs intraspecific distribution in mangrove forests is not dependent of the water-land gradient decrease of organic matter. (AU)

FAPESP's process: 14/00456-7 - Intraspecific distribution of fiddler crabs depending on the organic matter content of the sediment: a question of preference?
Grantee:Fernando Rafael de Grande
Support Opportunities: Scholarships in Brazil - Master