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Assessment of faunal communities and habitat use within a shallow water system using non-invasive BRUVs methodology

Aquaculture and Fisheries 2020年第5期5卷 224-233页

作者： Henriette M.V.Grimmel Robert W.Bullock Simon L.Dedman Tristan L.Guttridge Mark E.Bond Bimini Biological Field Station Foundation South BiminiBahamas Hull International Fisheries Institute University of HullHullHU67RXUnited Kingdom Independent Researcher San CarlosCAUSA Department of Biological Sciences Florida International University3000 NE 151th StreetNorthMiamiFL33181USA Saving the Blue KendallMiami33186USA

Seagrass and mangrove habitats have long been established as critical for diverse species at various life-stages,particularly as nursery ***,despite their intrinsic and environmental value,these ecosystems are increasingly threatened by anthropogenic *** Bimini,Bahamas,where ongoing development threatens ecosystem integrity,baited remote underwater video surveys(BRUVs)were used to examine faunal communities in both nearshore habitat and a shallow water central lagoon(average depth 1 m).The study assessed species abundances and spatial distribution in a currently unperturbed of the North Bimini Marine Reserve(NBMR).A total of 140 BRUVs,conducted over a 13-month period,recorded 62 species from 27 different *** was used to assess relative abundances and multivariate analyses(***,PCA,PERMANOVA)investigated differences in community composition across discrete factors and environmental *** Regression Trees(BRTs)were used to explore environmental variables for their uncorrelated influences on recorded species *** evidenced the importance of habitat diversity and particularly mangroveadjacent habitat for teleost fishes in Bimini with species diversity and abundance being significantly greater in the mangrove-adjacentdge ***,the study highlighted differences in environmental conditions between habitat types and the association this had with species diversity,abundance and *** the shallow water environment,BRUVs served as a scalable,non-invasive technique to assess community structures within the study *** from this study should inform ongoing decision-making processes regarding the protection of the Bimini Islands ecosystem.

关键词： Baited remote underwater video MaxN mangrove edge habitat Bahamas Bimini

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