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Habitat structure and fish : assessing the role of habitat complexity for fish using a small, semiportable, 3-D underwater observatory

Habitat structure and fish : assessing the role of habitat complexity for fish using a small, semiportable, 3-D underwater observatory

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FISCHER, Philipp, Arnd WEBER, Georg HEINE, Harald WEBER, 2007. Habitat structure and fish : assessing the role of habitat complexity for fish using a small, semiportable, 3-D underwater observatory. In: Limnology and Oceanography : Methods. 5(9), pp. 250-262. eISSN 1541-5856

@article{Fischer2007Habit-7630, title={Habitat structure and fish : assessing the role of habitat complexity for fish using a small, semiportable, 3-D underwater observatory}, year={2007}, doi={10.4319/lom.2007.5.250}, number={9}, volume={5}, journal={Limnology and Oceanography : Methods}, pages={250--262}, author={Fischer, Philipp and Weber, Arnd and Heine, Georg and Weber, Harald} }

<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/7630"> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/7630"/> <dc:contributor>Heine, Georg</dc:contributor> <dc:contributor>Weber, Harald</dc:contributor> <dcterms:issued>2007</dcterms:issued> <dc:language>eng</dc:language> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2011-03-24T17:35:55Z</dc:date> <dcterms:abstract xml:lang="eng">In contrast to terrestrial ecology, three-dimensional (3-D) imaging technology is not well established as a method for studying species-habitat interactions in aquatic ecology. In this study, we used a semi-portable, digital, 3-D underwater observatory designed for long-term exposure in shallow water habitats to assess fish-habitat interactions to artificial structures of different complexity. The observatory was mounted on a cable-car system and was moved along a 50 m transect parallel to five artificial structures of different complexity and one control site. The optical unit took high-resolution digital images, in pairs, from each structure and the control site at a frequency of 30 min over 24 h and was then moved remotely to the next structure. The system was operated for 2 mo without being recovered and took a total of 2160 stereoscopic image pairs. The system proved highly valuable in assessing small-scale temporal patterns in fish-habitat interactions, as well as changes in habitat preferences of fish over the diel cycle. Such small-scale temporal and spatial patterns are important for a detailed understanding of species-habitat interactions, not only in fish but also in most aquatic macro-organisms. Nevertheless, such patterns can hardly be assessed using classical sampling devices due to labor and animal protection restrictions. However, the possibility of a significant increase in quantity of sampling through the use of remote imaging technology is accompanied by a significant increase in labor costs for image analysis. Therefore, further progress in semi- and fully automated systems for image analysis is needed, including 3-D imaging tools, for ecological studies.</dcterms:abstract> <dcterms:title>Habitat structure and fish : assessing the role of habitat complexity for fish using a small, semiportable, 3-D underwater observatory</dcterms:title> <dc:creator>Weber, Arnd</dc:creator> <dcterms:rights rdf:resource="https://creativecommons.org/licenses/by-nc-nd/2.0/legalcode"/> <dc:rights>deposit-license</dc:rights> <dc:format>application/pdf</dc:format> <dc:contributor>Fischer, Philipp</dc:contributor> <dc:contributor>Weber, Arnd</dc:contributor> <dc:creator>Fischer, Philipp</dc:creator> <dcterms:bibliographicCitation>First publ. in: Limnology and Oceanography : Methods ; 5 (2007). - S. 250-262</dcterms:bibliographicCitation> <dc:creator>Weber, Harald</dc:creator> <dc:creator>Heine, Georg</dc:creator> </rdf:Description> </rdf:RDF>

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