Sub-surface maxima in buoyant fish eggs indicate vertical velocity shear and spatially limited spawning grounds
Observed vertical profiles of buoyant particles, in this case pelagic Northeast Arctic cod eggs, occasionally deviate from the vertical diffusion-buoyancy balance by displaying sub-surface maxima. Here we present a mechanism that may explain this phenomenon by combining in situ measurements of North...
Published in: | Limnology and Oceanography |
---|---|
Main Authors: | , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
Published: |
Association for the Sciences of Limnology and Oceanography, John Wiley & Sons, Inc.
2018
|
Subjects: | |
Online Access: | https://hdl.handle.net/1956/19189 https://doi.org/10.1002/lno.11109 |
id |
ftunivbergen:oai:bora.uib.no:1956/19189 |
---|---|
record_format |
openpolar |
spelling |
ftunivbergen:oai:bora.uib.no:1956/19189 2023-05-15T14:30:23+02:00 Sub-surface maxima in buoyant fish eggs indicate vertical velocity shear and spatially limited spawning grounds Strand, Kjersti Opstad Vikebø, Frode Sundby, Svein Sperrevik, Ann Kristin 2018 application/pdf https://hdl.handle.net/1956/19189 https://doi.org/10.1002/lno.11109 unknown Association for the Sciences of Limnology and Oceanography, John Wiley & Sons, Inc. urn:issn:1939-5590 https://hdl.handle.net/1956/19189 https://doi.org/10.1002/lno.11109 This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. https://creativecommons.org/licenses/by/4.0/ Copyright the authors. Limnology and Oceanography VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Faste jords fysikk: 451 Peer reviewed Journal article 2018 ftunivbergen https://doi.org/10.1002/lno.11109 2023-03-14T17:39:00Z Observed vertical profiles of buoyant particles, in this case pelagic Northeast Arctic cod eggs, occasionally deviate from the vertical diffusion-buoyancy balance by displaying sub-surface maxima. Here we present a mechanism that may explain this phenomenon by combining in situ measurements of Northeast Arctic cod eggs and concurrent environmental conditions with biophysical modeling of Vestfjorden, Norway. Due to limited observational information, we constructed a spawning season by dispersing eggs with an individual-based biophysical model forced by a three-dimensional ocean model including data assimilation improving upper ocean stratification. We show that transient sub-surface maxima in eggs are caused by the combination of vertical velocity shear and spatial limitations of spawning grounds. This demonstrates the need for resolving upper ocean small-scale dynamics in biophysical models to predict horizontal and vertical planktonic dispersal. This is also a precondition for predicting environmental exposure along drift routes, including natural and anthropogenic stressors. acceptedVersion Article in Journal/Newspaper Arctic cod Arctic Northeast Arctic cod Vestfjorden University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic Norway Limnology and Oceanography 64 3 1239 1251 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
unknown |
topic |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Faste jords fysikk: 451 |
spellingShingle |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Faste jords fysikk: 451 Strand, Kjersti Opstad Vikebø, Frode Sundby, Svein Sperrevik, Ann Kristin Sub-surface maxima in buoyant fish eggs indicate vertical velocity shear and spatially limited spawning grounds |
topic_facet |
VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Faste jords fysikk: 451 |
description |
Observed vertical profiles of buoyant particles, in this case pelagic Northeast Arctic cod eggs, occasionally deviate from the vertical diffusion-buoyancy balance by displaying sub-surface maxima. Here we present a mechanism that may explain this phenomenon by combining in situ measurements of Northeast Arctic cod eggs and concurrent environmental conditions with biophysical modeling of Vestfjorden, Norway. Due to limited observational information, we constructed a spawning season by dispersing eggs with an individual-based biophysical model forced by a three-dimensional ocean model including data assimilation improving upper ocean stratification. We show that transient sub-surface maxima in eggs are caused by the combination of vertical velocity shear and spatial limitations of spawning grounds. This demonstrates the need for resolving upper ocean small-scale dynamics in biophysical models to predict horizontal and vertical planktonic dispersal. This is also a precondition for predicting environmental exposure along drift routes, including natural and anthropogenic stressors. acceptedVersion |
format |
Article in Journal/Newspaper |
author |
Strand, Kjersti Opstad Vikebø, Frode Sundby, Svein Sperrevik, Ann Kristin |
author_facet |
Strand, Kjersti Opstad Vikebø, Frode Sundby, Svein Sperrevik, Ann Kristin |
author_sort |
Strand, Kjersti Opstad |
title |
Sub-surface maxima in buoyant fish eggs indicate vertical velocity shear and spatially limited spawning grounds |
title_short |
Sub-surface maxima in buoyant fish eggs indicate vertical velocity shear and spatially limited spawning grounds |
title_full |
Sub-surface maxima in buoyant fish eggs indicate vertical velocity shear and spatially limited spawning grounds |
title_fullStr |
Sub-surface maxima in buoyant fish eggs indicate vertical velocity shear and spatially limited spawning grounds |
title_full_unstemmed |
Sub-surface maxima in buoyant fish eggs indicate vertical velocity shear and spatially limited spawning grounds |
title_sort |
sub-surface maxima in buoyant fish eggs indicate vertical velocity shear and spatially limited spawning grounds |
publisher |
Association for the Sciences of Limnology and Oceanography, John Wiley & Sons, Inc. |
publishDate |
2018 |
url |
https://hdl.handle.net/1956/19189 https://doi.org/10.1002/lno.11109 |
geographic |
Arctic Norway |
geographic_facet |
Arctic Norway |
genre |
Arctic cod Arctic Northeast Arctic cod Vestfjorden |
genre_facet |
Arctic cod Arctic Northeast Arctic cod Vestfjorden |
op_source |
Limnology and Oceanography |
op_relation |
urn:issn:1939-5590 https://hdl.handle.net/1956/19189 https://doi.org/10.1002/lno.11109 |
op_rights |
This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. https://creativecommons.org/licenses/by/4.0/ Copyright the authors. |
op_doi |
https://doi.org/10.1002/lno.11109 |
container_title |
Limnology and Oceanography |
container_volume |
64 |
container_issue |
3 |
container_start_page |
1239 |
op_container_end_page |
1251 |
_version_ |
1766304227897901056 |