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Seafloor habitat definition for spatial management in fisheries: a case study on the continental shelf of southeast Australia ArchiMer
Bax, N; Kloser, R; Williams, A; Gowlett-holmes, K; Ryan, T.
The importance of habitat to Fisheries production on Australia's southeast continental shelf is part of a five-year study of ecosystem functioning and its implications for a sustainable fishery. Benthic habitats from 40 m to similar to 200 m were studied, based on identification of suitable sites from local fishers' information. Results presented here concentrate on data from a single mesohabitat at 40-60 m depth collected over two days. Macrohabitats within this mesohabitat were discriminated as soft, hard and rough from visual inspection of acoustic echograms. Subsequent analysis of the return echoes using roughness and hardness indices did not significantly improve real-time visual discriminations. Macrohabitats were sampled with an underwater video...
Tipo: Text Palavras-chave: Habitat benthique; Acoustique; Communauté biologique; Vidéo sous-marine; Gestion spatiale; Seafloor habitat; Acoustics; Biological communities; Underwater video; Spatial management.
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00325/43594/44035.pdf
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EDENetworks: A user-friendly software to build and analyse networks in biogeography, ecology and population genetics ArchiMer
Kivela, Mikko; Arnaud-haond, Sophie; Saramaki, Jari.
The recent application of graph-based network theory analysis to biogeography, community ecology and population genetics has created a need for user-friendly software, which would allow a wider accessibility to and adaptation of these methods. EDENetworks aims to fill this void by providing an easy-to-use interface for the whole analysis pipeline of ecological and evolutionary networks starting from matrices of species distributions, genotypes, bacterial OTUs or populations characterized genetically. The user can choose between several different ecological distance metrics, such as Bray-Curtis or Sorensen distance, or population genetic metrics such as FST or Goldstein distances, to turn the raw data into a distance/dissimilarity matrix. This matrix is...
Tipo: Text Palavras-chave: Biogeography; Biological communities; Graph theory; Microbial ecology; Network analysis; Population genetics.
Ano: 2015 URL: http://archimer.ifremer.fr/doc/00197/30853/29217.pdf
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