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Diel vertical migration of larval and early-juvenile burbot optimises survival and growth in a deep, pre-alpine lake

Diel vertical migration of larval and early-juvenile burbot optimises survival and growth in a deep, pre-alpine lake

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DONNER, Michael, Reiner ECKMANN, 2011. Diel vertical migration of larval and early-juvenile burbot optimises survival and growth in a deep, pre-alpine lake. In: Freshwater Biology. 56(5), pp. 916-925. ISSN 0046-5070. Available under: doi: 10.1111/j.1365-2427.2010.02536.x

@article{Donner2011verti-17844, title={Diel vertical migration of larval and early-juvenile burbot optimises survival and growth in a deep, pre-alpine lake}, year={2011}, doi={10.1111/j.1365-2427.2010.02536.x}, number={5}, volume={56}, issn={0046-5070}, journal={Freshwater Biology}, pages={916--925}, author={Donner, Michael and Eckmann, Reiner} }

<rdf:RDF xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:bibo="http://purl.org/ontology/bibo/" xmlns:dspace="http://digital-repositories.org/ontologies/dspace/0.1.0#" xmlns:foaf="http://xmlns.com/foaf/0.1/" xmlns:void="http://rdfs.org/ns/void#" xmlns:xsd="http://www.w3.org/2001/XMLSchema#" > <rdf:Description rdf:about="https://kops.uni-konstanz.de/rdf/resource/123456789/17844"> <dcterms:available rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2012-02-10T11:07:45Z</dcterms:available> <dc:contributor>Donner, Michael</dc:contributor> <void:sparqlEndpoint rdf:resource="http://localhost/fuseki/dspace/sparql"/> <dcterms:title>Diel vertical migration of larval and early-juvenile burbot optimises survival and growth in a deep, pre-alpine lake</dcterms:title> <dc:creator>Donner, Michael</dc:creator> <dc:contributor>Eckmann, Reiner</dc:contributor> <dspace:isPartOfCollection rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/28"/> <dcterms:rights rdf:resource="https://kops.uni-konstanz.de/page/termsofuse"/> <dcterms:hasPart rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/17844/2/Donner%20etak.pdf"/> <dcterms:bibliographicCitation>First publ. in: Freshwater Biology ; 56 (2011), 5. - pp. 916–925</dcterms:bibliographicCitation> <dc:language>eng</dc:language> <bibo:uri rdf:resource="http://kops.uni-konstanz.de/handle/123456789/17844"/> <dcterms:isPartOf rdf:resource="https://kops.uni-konstanz.de/rdf/resource/123456789/28"/> <dc:creator>Eckmann, Reiner</dc:creator> <dcterms:issued>2011</dcterms:issued> <foaf:homepage rdf:resource="http://localhost:8080/jspui"/> <dcterms:abstract xml:lang="eng">1. Burbot larvae (Lota lota) perform a substantial diel vertical migration (DVM) of increasing amplitude in the pelagic zone during a 3-month period before migrating to the littoral zone as early-juveniles. We hypothesised that feeding in the warm surface layers at night and then spending the day in cold water below the thermocline reduces metabolic costs and earns burbot larvae an energetic advantage. 2. To test our hypothesis, we mimicked the temperature conditions experienced by vertically migrating burbot in the pelagic zone. We also simulated three further scenarios, in which temperature remained constant. 3. Burbot showed the best performance (defined as specific growth rate multiplied by the probability of survival) in the treatments simulating DVM. The high temperature treatment, simulating permanent residence in the warm epilimnion, resulted in high growth combined with high mortality. At a permanently low temperature, simulating life in the hypolimnion, growth was poor and activity reduced. 4. In a deep, temperature-stratified lake, where the apparently beneficial overall medium temperature is found in a restricted layer within the thermocline, DVM optimises performance in young burbot. Various ultimate factors might act synergistically in selecting for DVM in larval and early-juvenile burbot.</dcterms:abstract> <dc:rights>terms-of-use</dc:rights> <dspace:hasBitstream rdf:resource="https://kops.uni-konstanz.de/bitstream/123456789/17844/2/Donner%20etak.pdf"/> <dc:date rdf:datatype="http://www.w3.org/2001/XMLSchema#dateTime">2012-02-10T11:07:45Z</dc:date> </rdf:Description> </rdf:RDF>

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