dc.contributor.author | Strand, Kjersti Opstad | |
dc.contributor.author | Vikebø, Frode | |
dc.contributor.author | Sundby, Svein | |
dc.contributor.author | Sperrevik, Ann Kristin | |
dc.date.accessioned | 2019-03-08T15:23:12Z | |
dc.date.available | 2019-03-08T15:23:12Z | |
dc.date.issued | 2018 | |
dc.identifier.issn | 1939-5590 | en_US |
dc.identifier.uri | https://hdl.handle.net/1956/19189 | |
dc.description.abstract | 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. | en_US |
dc.publisher | Association for the Sciences of Limnology and Oceanography, John Wiley & Sons, Inc. | en_US |
dc.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. | eng |
dc.rights.uri | https://creativecommons.org/licenses/by/4.0/ | eng |
dc.title | Sub-surface maxima in buoyant fish eggs indicate vertical velocity shear and spatially limited spawning grounds | en_US |
dc.type | Peer reviewed | |
dc.type | Journal article | |
dc.description.version | acceptedVersion | en_US |
dc.rights.holder | Copyright the authors. | en_US |
dc.identifier.doi | https://doi.org/10.1002/lno.11109 | |
dc.source.journal | Limnology and Oceanography | |
dc.subject.nsi | VDP::Matematikk og Naturvitenskap: 400::Geofag: 450::Faste jords fysikk: 451 | en_US |