State of the California current 2013-14: El niño looming
In 2013, the California current was dominated by strong coastal upwelling and high productivity. Indices of total cumulative upwelling for particular coastal locations reached some of the highest values on record. Chlorophyll a levels were high throughout spring and summer. Catches of upwelling-rela...
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2014
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ftcdlib:oai:escholarship.org:ark:/13030/qt3v89360s 2023-08-27T04:08:46+02:00 State of the California current 2013-14: El niño looming Leising, AW Schroeder, ID Bograd, SJ Bjorkstedt, EP Field, J Sakuma, K Abell, J Robertson, RR Tyburczy, J Peterson, WT Brodeur, R Barceló, C Auth, TD Daly, EA Campbell, GS Hildebrand, JA Suryan, RM Gladics, AJ Horton, CA Kahru, M Manzano-Sarabia, M McClatchie, S Weber, ED Watson, W Santora, JA Sydeman, WJ Melin, SR Delong, RL Largier, J Kim, SY Chavez, FP Golightly, RT Schneider, SR Warzybok, P Bradley, R Jahncke, J Fisher, J Peterson, J 2014-01-01 application/pdf https://escholarship.org/uc/item/3v89360s unknown eScholarship, University of California qt3v89360s https://escholarship.org/uc/item/3v89360s public Fisheries Sciences Fisheries article 2014 ftcdlib 2023-08-07T18:01:50Z In 2013, the California current was dominated by strong coastal upwelling and high productivity. Indices of total cumulative upwelling for particular coastal locations reached some of the highest values on record. Chlorophyll a levels were high throughout spring and summer. Catches of upwelling-related fish species were also high. After a moderate drop in upwelling during fall 2013, the California current system underwent a major change in phase. Three major basin-scale indicators, the PDO, the NPGO, and the ENSO-MEI, all changed phase at some point during the winter of 2013/14. The PDO changed to positive values, indicative of warmer waters in the North Pacific; the NPGO to negative values, indicative of lower productivity along the coast; and the MEI to positive values, indicative of an oncoming El Niño. Whereas the majority of the California Current system appears to have transitioned to an El Niño state by August 2014, based on decreases in upwelling and chlorophyll a concentration, and increases in SST, there still remained pockets of moderate upwelling, cold water, and high chlorophyll a biomass at various central coast locations, unlike patterns seen during the more major El Niños (e.g., the 97-98 event). Catches of rockfish, market squid, euphausiids, and juvenile sanddab remained high along the central coast, whereas catches of sardine and anchovy were low throughout the CCS. 2014 appears to be heading towards a moderate El Niño state, with some remaining patchy regions of upwellingdriven productivity along the coast. Superimposed on this pattern, three major regions have experienced possibly non-El Niño-related warming since winter: the Bering Sea, the Gulf of Alaska, and offshore of southern California. It is unclear how this warming may interact with the predicted El Niño, but the result will likely be reduced growth or reproduction for many key fisheries species. Article in Journal/Newspaper Bering Sea Alaska University of California: eScholarship Bering Sea Gulf of Alaska Pacific |
institution |
Open Polar |
collection |
University of California: eScholarship |
op_collection_id |
ftcdlib |
language |
unknown |
topic |
Fisheries Sciences Fisheries |
spellingShingle |
Fisheries Sciences Fisheries Leising, AW Schroeder, ID Bograd, SJ Bjorkstedt, EP Field, J Sakuma, K Abell, J Robertson, RR Tyburczy, J Peterson, WT Brodeur, R Barceló, C Auth, TD Daly, EA Campbell, GS Hildebrand, JA Suryan, RM Gladics, AJ Horton, CA Kahru, M Manzano-Sarabia, M McClatchie, S Weber, ED Watson, W Santora, JA Sydeman, WJ Melin, SR Delong, RL Largier, J Kim, SY Chavez, FP Golightly, RT Schneider, SR Warzybok, P Bradley, R Jahncke, J Fisher, J Peterson, J State of the California current 2013-14: El niño looming |
topic_facet |
Fisheries Sciences Fisheries |
description |
In 2013, the California current was dominated by strong coastal upwelling and high productivity. Indices of total cumulative upwelling for particular coastal locations reached some of the highest values on record. Chlorophyll a levels were high throughout spring and summer. Catches of upwelling-related fish species were also high. After a moderate drop in upwelling during fall 2013, the California current system underwent a major change in phase. Three major basin-scale indicators, the PDO, the NPGO, and the ENSO-MEI, all changed phase at some point during the winter of 2013/14. The PDO changed to positive values, indicative of warmer waters in the North Pacific; the NPGO to negative values, indicative of lower productivity along the coast; and the MEI to positive values, indicative of an oncoming El Niño. Whereas the majority of the California Current system appears to have transitioned to an El Niño state by August 2014, based on decreases in upwelling and chlorophyll a concentration, and increases in SST, there still remained pockets of moderate upwelling, cold water, and high chlorophyll a biomass at various central coast locations, unlike patterns seen during the more major El Niños (e.g., the 97-98 event). Catches of rockfish, market squid, euphausiids, and juvenile sanddab remained high along the central coast, whereas catches of sardine and anchovy were low throughout the CCS. 2014 appears to be heading towards a moderate El Niño state, with some remaining patchy regions of upwellingdriven productivity along the coast. Superimposed on this pattern, three major regions have experienced possibly non-El Niño-related warming since winter: the Bering Sea, the Gulf of Alaska, and offshore of southern California. It is unclear how this warming may interact with the predicted El Niño, but the result will likely be reduced growth or reproduction for many key fisheries species. |
format |
Article in Journal/Newspaper |
author |
Leising, AW Schroeder, ID Bograd, SJ Bjorkstedt, EP Field, J Sakuma, K Abell, J Robertson, RR Tyburczy, J Peterson, WT Brodeur, R Barceló, C Auth, TD Daly, EA Campbell, GS Hildebrand, JA Suryan, RM Gladics, AJ Horton, CA Kahru, M Manzano-Sarabia, M McClatchie, S Weber, ED Watson, W Santora, JA Sydeman, WJ Melin, SR Delong, RL Largier, J Kim, SY Chavez, FP Golightly, RT Schneider, SR Warzybok, P Bradley, R Jahncke, J Fisher, J Peterson, J |
author_facet |
Leising, AW Schroeder, ID Bograd, SJ Bjorkstedt, EP Field, J Sakuma, K Abell, J Robertson, RR Tyburczy, J Peterson, WT Brodeur, R Barceló, C Auth, TD Daly, EA Campbell, GS Hildebrand, JA Suryan, RM Gladics, AJ Horton, CA Kahru, M Manzano-Sarabia, M McClatchie, S Weber, ED Watson, W Santora, JA Sydeman, WJ Melin, SR Delong, RL Largier, J Kim, SY Chavez, FP Golightly, RT Schneider, SR Warzybok, P Bradley, R Jahncke, J Fisher, J Peterson, J |
author_sort |
Leising, AW |
title |
State of the California current 2013-14: El niño looming |
title_short |
State of the California current 2013-14: El niño looming |
title_full |
State of the California current 2013-14: El niño looming |
title_fullStr |
State of the California current 2013-14: El niño looming |
title_full_unstemmed |
State of the California current 2013-14: El niño looming |
title_sort |
state of the california current 2013-14: el niño looming |
publisher |
eScholarship, University of California |
publishDate |
2014 |
url |
https://escholarship.org/uc/item/3v89360s |
geographic |
Bering Sea Gulf of Alaska Pacific |
geographic_facet |
Bering Sea Gulf of Alaska Pacific |
genre |
Bering Sea Alaska |
genre_facet |
Bering Sea Alaska |
op_relation |
qt3v89360s https://escholarship.org/uc/item/3v89360s |
op_rights |
public |
_version_ |
1775349633352990720 |