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Cristin-resultat-ID:
1715371
Sist endret:
12. mars 2020, 13:59
Resultat
Fagartikkel
2019
Enhancing opportunistic polychaete communities under fish farms: an alternative concept for integrated aquaculture
Thomas Gunnar Dahlgren
Tidsskrift
Tidsskrift
Aquaculture Environment Interactions
ISSN 1869-215X
e-ISSN 1869-7534
NVI-nivå 1
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Om resultatet
Om resultatet
Fagartikkel
Publiseringsår: 2019
Publisert online: 2019
Trykket: 2019
Volum: 11
Sider: 331 - 336
Open Access
Lenker
Lenker
original online (doi)
https://doi.org/10.3354/aei00318
Beskrivelse
Beskrivelse
Engelsk
Tittel
Enhancing opportunistic polychaete communities under fish farms: an alternative concept for integrated aquaculture
Sammendrag
This note presents the development of benthic integrated aquaculture, addressing a novel cultivation concept for open-water aquaculture. We introduce an approach that supports the colonization of indigenous polychaete communities on benthic cultivation trays deployed in the vicinity of fish-farming cages. Enhancement and subsequent harvest of polychaetes that naturally dominate the local benthic response is essentially different from the classical IMTA approach wherein juveniles and/or seedlings of the extractive species are introduced to the farm site. Results of a field trial showed quick and massive colonization of cultivation trays by polychaetes (predominantly Ophryotrocha craigsmithi) and large spatial variability within the salmon farm site. Our results suggest that enhancing indigenous opportunistic polychaetes is a promising cul- tivation concept making use of the deposition of organic wastes such as fish faeces and uneaten feed. The methods and results presented here contribute to solutions for technical optimization of benthic IMTA techniques. We expect that further advances in benthic IMTA production will con- tribute to the expansion of open-water finfish aquaculture within environmentally sustainable boundaries.
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Thomas Gunnar Dahlgren
Forfatter
ved NORCE Klima og miljø ved NORCE Norwegian Research Centre AS
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