What makes mangroves attractive to fish? Use of artificial units to test the influence of water depth, cross-shelf location, and presence of root structure

dc.contributor.authorNagelkerken, I.
dc.contributor.authorFaunce, C.
dc.date.issued2008
dc.description.abstractMangroves are an attractive fish habitat because they provide shelter and food for juvenile fishes. However, because mangroves are almost always located in shallow water and in sheltered (i.e., lagoonal, estuarine or bay) environments, the degree to which the latter two factors contribute to the attractiveness of mangrove prop-roots as a fish habitat is unknown. Artificial Mangrove Units (AMUs) were placed at multiple depths and along a gradient from an embayment to, and including, the coral reef. Total fish density and species richness in AMUs placed in the embayment was lower at 1 m depth than at 2 and 3 m depth, suggesting that shallow water is not a prerequisite for the attractiveness of mangrove prop-roots as a fish habitat. Total fish density and species richness were equal or greater in AMUs on the coral reef than in the embayment, suggesting that placement of mangroves in a sheltered lagoonal environment is not solely responsible for the attractiveness of mangrove prop-roots either. After 3 weeks, removal of AMUs did not have a negative effect on total fish density or species richness. However, within the embayment AMU removal resulted in the complete collapse of the assemblage component comprised of species that use mangroves as juvenile habitats, highlighting the need for a species-based approach towards assessing the benefits provided by the presence of mangrove root structure for fishes. © 2008 Elsevier Ltd.
dc.description.statementofresponsibilityI. Nagelkerken, C.H. Faunce
dc.identifier.citationEstuarine, Coastal and Shelf Science, 2008; 79(3):559-565
dc.identifier.doi10.1016/j.ecss.2008.04.011
dc.identifier.issn0272-7714
dc.identifier.orcidNagelkerken, I. [0000-0003-4499-3940]
dc.identifier.urihttp://hdl.handle.net/2440/75692
dc.language.isoen
dc.publisherAcademic Press Ltd Elsevier Science Ltd
dc.rightsCopyright © 2008 Elsevier Ltd.
dc.source.urihttps://doi.org/10.1016/j.ecss.2008.04.011
dc.subjectcoral reef fish
dc.subjectartificial mangrove units
dc.subjectstructure
dc.subjectCaribbean
dc.titleWhat makes mangroves attractive to fish? Use of artificial units to test the influence of water depth, cross-shelf location, and presence of root structure
dc.typeJournal article
pubs.publication-statusPublished

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