Epibenthic diversity and productivity on a heavily trawled Barents Sea bank (Tromsøflaket)
Shallow Arctic banks have been observed to harbour rich communities of epifaunal organisms, but have not been well-studied with respect to composition or function due to sampling challenges. In order to determine how these banks function in the Barents Sea ecosystem, we used a combination of video a...
Published in: | Oceanologia |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Elsevier
2017
|
Subjects: | |
Online Access: | https://doi.org/10.1016/j.oceano.2016.12.001 https://doaj.org/article/3ce3ba91e05d444aa9f57f21985e65e1 |
id |
ftdoajarticles:oai:doaj.org/article:3ce3ba91e05d444aa9f57f21985e65e1 |
---|---|
record_format |
openpolar |
spelling |
ftdoajarticles:oai:doaj.org/article:3ce3ba91e05d444aa9f57f21985e65e1 2023-05-15T15:07:39+02:00 Epibenthic diversity and productivity on a heavily trawled Barents Sea bank (Tromsøflaket) Monika Kędra Paul E. Renaud Hector Andrade 2017-04-01T00:00:00Z https://doi.org/10.1016/j.oceano.2016.12.001 https://doaj.org/article/3ce3ba91e05d444aa9f57f21985e65e1 EN eng Elsevier http://www.sciencedirect.com/science/article/pii/S007832341630118X https://doaj.org/toc/0078-3234 0078-3234 doi:10.1016/j.oceano.2016.12.001 https://doaj.org/article/3ce3ba91e05d444aa9f57f21985e65e1 Oceanologia, Vol 59, Iss 2, Pp 93-101 (2017) Epibenthos Benthic secondary production Shallow banks Trawling impacts Oceanography GC1-1581 article 2017 ftdoajarticles https://doi.org/10.1016/j.oceano.2016.12.001 2022-12-30T22:40:58Z Shallow Arctic banks have been observed to harbour rich communities of epifaunal organisms, but have not been well-studied with respect to composition or function due to sampling challenges. In order to determine how these banks function in the Barents Sea ecosystem, we used a combination of video and trawl/dredge sampling at several locations on a heavily trawled bank, Tromsøflaket – located at the southwestern entrance to the Barents Sea. We describe components of the benthic community, and calculate secondary production of dominant epifaunal organisms. Forty-six epibenthic taxa were identified, and sponges were a significant part of the surveyed benthic communities. There were differences in diversity and production among areas, mainly related to the intensity of trawling activities. Gamma was the most diverse and productive area, with highest species abundance and biomass. Trawled areas had considerably lower species numbers, and significant differences in epifaunal abundance and biomass were found between all trawled and untrawled areas. Trawling seems to have an impact on the sponge communities: mean individual poriferan biomass was higher in untrawled areas, and, although poriferans were observed in areas subjected to more intensive trawling, they were at least five times less frequent than in untrawled areas. Article in Journal/Newspaper Arctic Barents Sea Tromsøflaket Directory of Open Access Journals: DOAJ Articles Arctic Barents Sea Tromsøflaket ENVELOPE(18.500,18.500,71.500,71.500) Oceanologia 59 2 93 101 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Epibenthos Benthic secondary production Shallow banks Trawling impacts Oceanography GC1-1581 |
spellingShingle |
Epibenthos Benthic secondary production Shallow banks Trawling impacts Oceanography GC1-1581 Monika Kędra Paul E. Renaud Hector Andrade Epibenthic diversity and productivity on a heavily trawled Barents Sea bank (Tromsøflaket) |
topic_facet |
Epibenthos Benthic secondary production Shallow banks Trawling impacts Oceanography GC1-1581 |
description |
Shallow Arctic banks have been observed to harbour rich communities of epifaunal organisms, but have not been well-studied with respect to composition or function due to sampling challenges. In order to determine how these banks function in the Barents Sea ecosystem, we used a combination of video and trawl/dredge sampling at several locations on a heavily trawled bank, Tromsøflaket – located at the southwestern entrance to the Barents Sea. We describe components of the benthic community, and calculate secondary production of dominant epifaunal organisms. Forty-six epibenthic taxa were identified, and sponges were a significant part of the surveyed benthic communities. There were differences in diversity and production among areas, mainly related to the intensity of trawling activities. Gamma was the most diverse and productive area, with highest species abundance and biomass. Trawled areas had considerably lower species numbers, and significant differences in epifaunal abundance and biomass were found between all trawled and untrawled areas. Trawling seems to have an impact on the sponge communities: mean individual poriferan biomass was higher in untrawled areas, and, although poriferans were observed in areas subjected to more intensive trawling, they were at least five times less frequent than in untrawled areas. |
format |
Article in Journal/Newspaper |
author |
Monika Kędra Paul E. Renaud Hector Andrade |
author_facet |
Monika Kędra Paul E. Renaud Hector Andrade |
author_sort |
Monika Kędra |
title |
Epibenthic diversity and productivity on a heavily trawled Barents Sea bank (Tromsøflaket) |
title_short |
Epibenthic diversity and productivity on a heavily trawled Barents Sea bank (Tromsøflaket) |
title_full |
Epibenthic diversity and productivity on a heavily trawled Barents Sea bank (Tromsøflaket) |
title_fullStr |
Epibenthic diversity and productivity on a heavily trawled Barents Sea bank (Tromsøflaket) |
title_full_unstemmed |
Epibenthic diversity and productivity on a heavily trawled Barents Sea bank (Tromsøflaket) |
title_sort |
epibenthic diversity and productivity on a heavily trawled barents sea bank (tromsøflaket) |
publisher |
Elsevier |
publishDate |
2017 |
url |
https://doi.org/10.1016/j.oceano.2016.12.001 https://doaj.org/article/3ce3ba91e05d444aa9f57f21985e65e1 |
long_lat |
ENVELOPE(18.500,18.500,71.500,71.500) |
geographic |
Arctic Barents Sea Tromsøflaket |
geographic_facet |
Arctic Barents Sea Tromsøflaket |
genre |
Arctic Barents Sea Tromsøflaket |
genre_facet |
Arctic Barents Sea Tromsøflaket |
op_source |
Oceanologia, Vol 59, Iss 2, Pp 93-101 (2017) |
op_relation |
http://www.sciencedirect.com/science/article/pii/S007832341630118X https://doaj.org/toc/0078-3234 0078-3234 doi:10.1016/j.oceano.2016.12.001 https://doaj.org/article/3ce3ba91e05d444aa9f57f21985e65e1 |
op_doi |
https://doi.org/10.1016/j.oceano.2016.12.001 |
container_title |
Oceanologia |
container_volume |
59 |
container_issue |
2 |
container_start_page |
93 |
op_container_end_page |
101 |
_version_ |
1766339108818386944 |