Influence of oceanographic variability on recruitment in the Illex argentinus (Cephalopoda:Ommastrephidae) fishery in the South Atlantic
The fishery for Illex argentinus in the Southwest Atlantic is subject to large inter-annual variability in recruitment strength. In this paper we attempt to build a predictive model using sea surface temperature (SST) to examine links between recruitment to the Falkland Islands fishery and environme...
Published in: | Marine Ecology Progress Series |
---|---|
Main Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Inter Research
1999
|
Subjects: | |
Online Access: | https://oceanrep.geomar.de/id/eprint/52942/ https://oceanrep.geomar.de/id/eprint/52942/1/3707.pdf https://www.int-res.com/abstracts/meps/v183/p159-167/ https://doi.org/10.3354/meps183159 |
id |
ftoceanrep:oai:oceanrep.geomar.de:52942 |
---|---|
record_format |
openpolar |
spelling |
ftoceanrep:oai:oceanrep.geomar.de:52942 2023-05-15T14:10:22+02:00 Influence of oceanographic variability on recruitment in the Illex argentinus (Cephalopoda:Ommastrephidae) fishery in the South Atlantic Waluda, C. M. Trathan, P. N. Rodhouse, P. G. 1999 text https://oceanrep.geomar.de/id/eprint/52942/ https://oceanrep.geomar.de/id/eprint/52942/1/3707.pdf https://www.int-res.com/abstracts/meps/v183/p159-167/ https://doi.org/10.3354/meps183159 en eng Inter Research https://oceanrep.geomar.de/id/eprint/52942/1/3707.pdf Waluda, C. M., Trathan, P. N. and Rodhouse, P. G. (1999) Influence of oceanographic variability on recruitment in the Illex argentinus (Cephalopoda:Ommastrephidae) fishery in the South Atlantic. Open Access Marine Ecology Progress Series, 183 . pp. 159-167. DOI 10.3354/meps183159 <https://doi.org/10.3354/meps183159>. doi:10.3354/meps183159 cc_by_4.0 info:eu-repo/semantics/openAccess Article PeerReviewed 1999 ftoceanrep https://doi.org/10.3354/meps183159 2023-04-07T15:56:45Z The fishery for Illex argentinus in the Southwest Atlantic is subject to large inter-annual variability in recruitment strength. In this paper we attempt to build a predictive model using sea surface temperature (SST) to examine links between recruitment to the Falkland Islands fishery and environmental variability during the juvenile and adult life history stages. SST data from the National Center for Atmospheric Research (NCAR) were found to be comparable with near-surface data derived from in situ expendable bathy-thermograph (XBT) profiles in the southern Patagonian shelf. Variation in SST during the early life stages appears to be important in determining recruitment of I. argentinus. SST in the hatching grounds of the northern Patagonian shelf during the period of hatching (particularly June and July) was negatively correlated with catches in the fishery in the following season. SST anomaly data from positions in the Pacific and Southwest Atlantic were used to examine teleconnections between these areas. Links were seen at a lag of 2 yr between the Pacific and southern Patagonian shelf, and at about 5 yr between the Pacific and northern Patagonian shelf. This is consistent with SST anomalies associated with El Niño in the Pacific propagating around the globe via the Antarctic Circumpolar Wave (ACW). Predicting cold events via teleconnections between SST anomalies in the Pacific and Atlantic would appear to have the potential to predict the recruitment strength of I. argentinus in the Southwest Atlantic. Article in Journal/Newspaper Antarc* Antarctic OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) Antarctic Pacific The Antarctic Marine Ecology Progress Series 183 159 167 |
institution |
Open Polar |
collection |
OceanRep (GEOMAR Helmholtz Centre für Ocean Research Kiel) |
op_collection_id |
ftoceanrep |
language |
English |
description |
The fishery for Illex argentinus in the Southwest Atlantic is subject to large inter-annual variability in recruitment strength. In this paper we attempt to build a predictive model using sea surface temperature (SST) to examine links between recruitment to the Falkland Islands fishery and environmental variability during the juvenile and adult life history stages. SST data from the National Center for Atmospheric Research (NCAR) were found to be comparable with near-surface data derived from in situ expendable bathy-thermograph (XBT) profiles in the southern Patagonian shelf. Variation in SST during the early life stages appears to be important in determining recruitment of I. argentinus. SST in the hatching grounds of the northern Patagonian shelf during the period of hatching (particularly June and July) was negatively correlated with catches in the fishery in the following season. SST anomaly data from positions in the Pacific and Southwest Atlantic were used to examine teleconnections between these areas. Links were seen at a lag of 2 yr between the Pacific and southern Patagonian shelf, and at about 5 yr between the Pacific and northern Patagonian shelf. This is consistent with SST anomalies associated with El Niño in the Pacific propagating around the globe via the Antarctic Circumpolar Wave (ACW). Predicting cold events via teleconnections between SST anomalies in the Pacific and Atlantic would appear to have the potential to predict the recruitment strength of I. argentinus in the Southwest Atlantic. |
format |
Article in Journal/Newspaper |
author |
Waluda, C. M. Trathan, P. N. Rodhouse, P. G. |
spellingShingle |
Waluda, C. M. Trathan, P. N. Rodhouse, P. G. Influence of oceanographic variability on recruitment in the Illex argentinus (Cephalopoda:Ommastrephidae) fishery in the South Atlantic |
author_facet |
Waluda, C. M. Trathan, P. N. Rodhouse, P. G. |
author_sort |
Waluda, C. M. |
title |
Influence of oceanographic variability on recruitment in the Illex argentinus (Cephalopoda:Ommastrephidae) fishery in the South Atlantic |
title_short |
Influence of oceanographic variability on recruitment in the Illex argentinus (Cephalopoda:Ommastrephidae) fishery in the South Atlantic |
title_full |
Influence of oceanographic variability on recruitment in the Illex argentinus (Cephalopoda:Ommastrephidae) fishery in the South Atlantic |
title_fullStr |
Influence of oceanographic variability on recruitment in the Illex argentinus (Cephalopoda:Ommastrephidae) fishery in the South Atlantic |
title_full_unstemmed |
Influence of oceanographic variability on recruitment in the Illex argentinus (Cephalopoda:Ommastrephidae) fishery in the South Atlantic |
title_sort |
influence of oceanographic variability on recruitment in the illex argentinus (cephalopoda:ommastrephidae) fishery in the south atlantic |
publisher |
Inter Research |
publishDate |
1999 |
url |
https://oceanrep.geomar.de/id/eprint/52942/ https://oceanrep.geomar.de/id/eprint/52942/1/3707.pdf https://www.int-res.com/abstracts/meps/v183/p159-167/ https://doi.org/10.3354/meps183159 |
geographic |
Antarctic Pacific The Antarctic |
geographic_facet |
Antarctic Pacific The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://oceanrep.geomar.de/id/eprint/52942/1/3707.pdf Waluda, C. M., Trathan, P. N. and Rodhouse, P. G. (1999) Influence of oceanographic variability on recruitment in the Illex argentinus (Cephalopoda:Ommastrephidae) fishery in the South Atlantic. Open Access Marine Ecology Progress Series, 183 . pp. 159-167. DOI 10.3354/meps183159 <https://doi.org/10.3354/meps183159>. doi:10.3354/meps183159 |
op_rights |
cc_by_4.0 info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.3354/meps183159 |
container_title |
Marine Ecology Progress Series |
container_volume |
183 |
container_start_page |
159 |
op_container_end_page |
167 |
_version_ |
1766282426423705600 |