Environmental Pollution

, volume 170 , pages 15-25

Biogeochemical malfunctioning in sediments beneath a deep-water fish farm

Thomas Valdemarsen ¹

Raymond J Bannister ²

Pia K. Hansen ²

Marianne Holmer ¹

Arne Ervik ²

Hide authors affiliations Show authors affiliations: 2 affiliations

Institute of Biology, University of Southern Denmark, Campusvej 55, DK‐5230 Odense M, Denmark |

Institute of Marine Research, PO Box 1870, 5817 Bergen, Norway |

Publication type: Journal Article

Publication date: 2012-11-01

Elsevier

Environmental Pollution

scimago Q1

wos Q1

SJR: 2.205

CiteScore: 16.0

Impact factor: 7.3

ISSN: 02697491, 18736424

DOI: 10.1016/j.envpol.2012.06.007

Copy DOI

PubMed ID: 22763326

General Medicine

Health, Toxicology and Mutagenesis

Pollution

Toxicology

Abstract

We investigated the environmental impact of a deep water fish farm (190 m). Despite deep water and low water currents, sediments underneath the farm were heavily enriched with organic matter, resulting in stimulated biogeochemical cycling. During the first 7 months of the production cycle benthic fluxes were stimulated >29 times for CO(2) and O(2) and >2000 times for NH(4)(+), when compared to the reference site. During the final 11 months, however, benthic fluxes decreased despite increasing sedimentation. Investigations of microbial mineralization revealed that the sediment metabolic capacity was exceeded, which resulted in inhibited microbial mineralization due to negative feed-backs from accumulation of various solutes in pore water. Conclusions are that (1) deep water sediments at 8 °C can metabolize fish farm waste corresponding to 407 and 29 mmol m(-2) d(-1) POC and TN, respectively, and (2) siting fish farms at deep water sites is not a universal solution for reducing benthic impacts.

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GOST |

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GOST Copy

Valdemarsen T. et al. Biogeochemical malfunctioning in sediments beneath a deep-water fish farm // Environmental Pollution. 2012. Vol. 170. pp. 15-25.

GOST all authors (up to 50) Copy

Valdemarsen T., Bannister R. J., Hansen P. K., Holmer M., Ervik A. Biogeochemical malfunctioning in sediments beneath a deep-water fish farm // Environmental Pollution. 2012. Vol. 170. pp. 15-25.

RIS |

Cite this

RIS Copy

TY - JOUR

DO - 10.1016/j.envpol.2012.06.007

UR - https://doi.org/10.1016/j.envpol.2012.06.007

TI - Biogeochemical malfunctioning in sediments beneath a deep-water fish farm

T2 - Environmental Pollution

AU - Valdemarsen, Thomas

AU - Bannister, Raymond J

AU - Hansen, Pia K.

AU - Holmer, Marianne

AU - Ervik, Arne

PY - 2012

DA - 2012/11/01

PB - Elsevier

SP - 15-25

VL - 170

PMID - 22763326

SN - 0269-7491

SN - 1873-6424

ER -

BibTex

Cite this

BibTex (up to 50 authors) Copy

@article{2012_Valdemarsen,

author = {Thomas Valdemarsen and Raymond J Bannister and Pia K. Hansen and Marianne Holmer and Arne Ervik},

title = {Biogeochemical malfunctioning in sediments beneath a deep-water fish farm},

journal = {Environmental Pollution},

year = {2012},

volume = {170},

publisher = {Elsevier},

month = {nov},

url = {https://doi.org/10.1016/j.envpol.2012.06.007},

pages = {15--25},

doi = {10.1016/j.envpol.2012.06.007}

}

Publisher

Elsevier

Journal

Environmental Pollution

scimago Q1

wos Q1

SJR

2.205

CiteScore

16.0

Impact factor

7.3

ISSN

02697491 (Print)

18736424 (Electronic)