Habitat association and distribution of Nauticaris marionis at the Sub-Antarctic Prince Edward Islands

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dc.contributor.advisorAtkinson, Lara Janeen_ZA
dc.contributor.advisorVon der Meden, Charlesen_ZA
dc.contributor.advisorReed, Cecile Cen_ZA
dc.contributor.authorHaley, Craigen_ZA
dc.date.accessioned2016-07-20T06:50:27Z
dc.date.available2016-07-20T06:50:27Z
dc.date.issued2016en_ZA
dc.description.abstractThe habitat associations between the caridean shrimp Nauticaris marionis and sessile epibenthic assemblages and substratum types of the Sub-Antarctic Prince Edward Islands were investigated. Twenty five stations, varying in substratum type, depth and location on the shelf and slope around the islands were sampled photographically with a towed benthic camera sled. At each station the substratum type was classified, sessile epibenthic cover was quantified through the use of digital quadrats and shrimp density was estimated. Results add to the broadly described distribution patterns of N. marionis by identifying specifically the habitat characteristics they generally utilize. The distribution of N. marionis was found to be influenced by a combination of substratum and sessile epibenthic assemblages, but not substratum type alone. Shrimp inhabited stations with >50 % biogenic cover on mud and gravel substrata, but were not found at stations with rocky-sand or rocky-mud substrata. Their distribution appears to also be influenced by depth, as shrimp were only found within a depth range of 50 - 160 m in this study. A strong correlation was found between N. marionis density and depth. Shrimp were found both inshore around the islands, and on the relatively shallow saddle between the islands. In comparison with previous studies, N. marionis was found at similar, if not higher, densities in this study, although they occupied a narrower depth range.en_ZA
dc.identifier.apacitationHaley, C. (2016). <i>Habitat association and distribution of Nauticaris marionis at the Sub-Antarctic Prince Edward Islands</i>. (Thesis). University of Cape Town ,Faculty of Science ,Marine Research (MA-RE) Institute. Retrieved from http://hdl.handle.net/11427/20471en_ZA
dc.identifier.chicagocitationHaley, Craig. <i>"Habitat association and distribution of Nauticaris marionis at the Sub-Antarctic Prince Edward Islands."</i> Thesis., University of Cape Town ,Faculty of Science ,Marine Research (MA-RE) Institute, 2016. http://hdl.handle.net/11427/20471en_ZA
dc.identifier.citationHaley, C. 2016. Habitat association and distribution of Nauticaris marionis at the Sub-Antarctic Prince Edward Islands. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Haley, Craig AB - The habitat associations between the caridean shrimp Nauticaris marionis and sessile epibenthic assemblages and substratum types of the Sub-Antarctic Prince Edward Islands were investigated. Twenty five stations, varying in substratum type, depth and location on the shelf and slope around the islands were sampled photographically with a towed benthic camera sled. At each station the substratum type was classified, sessile epibenthic cover was quantified through the use of digital quadrats and shrimp density was estimated. Results add to the broadly described distribution patterns of N. marionis by identifying specifically the habitat characteristics they generally utilize. The distribution of N. marionis was found to be influenced by a combination of substratum and sessile epibenthic assemblages, but not substratum type alone. Shrimp inhabited stations with >50 % biogenic cover on mud and gravel substrata, but were not found at stations with rocky-sand or rocky-mud substrata. Their distribution appears to also be influenced by depth, as shrimp were only found within a depth range of 50 - 160 m in this study. A strong correlation was found between N. marionis density and depth. Shrimp were found both inshore around the islands, and on the relatively shallow saddle between the islands. In comparison with previous studies, N. marionis was found at similar, if not higher, densities in this study, although they occupied a narrower depth range. DA - 2016 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 2016 T1 - Habitat association and distribution of Nauticaris marionis at the Sub-Antarctic Prince Edward Islands TI - Habitat association and distribution of Nauticaris marionis at the Sub-Antarctic Prince Edward Islands UR - http://hdl.handle.net/11427/20471 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/20471
dc.identifier.vancouvercitationHaley C. Habitat association and distribution of Nauticaris marionis at the Sub-Antarctic Prince Edward Islands. [Thesis]. University of Cape Town ,Faculty of Science ,Marine Research (MA-RE) Institute, 2016 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/20471en_ZA
dc.language.isoengen_ZA
dc.publisher.departmentMarine Research (MA-RE) Instituteen_ZA
dc.publisher.facultyFaculty of Scienceen_ZA
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherZoologyen_ZA
dc.subject.otherMarine Biologyen_ZA
dc.titleHabitat association and distribution of Nauticaris marionis at the Sub-Antarctic Prince Edward Islandsen_ZA
dc.typeMaster Thesis
dc.type.qualificationlevelMasters
dc.type.qualificationnameMScen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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