Contrasted optimal environmental windows for both sardinella species in Senegalese waters
We investigate Sardinella aurita and Sardinella maderensis recruitment success relative to the variability of oceanographic conditions in Senegalese waters using generalized additive models (GAM). Results show that recruitment of both species is marked by a strong intra-annual (seasonal) variation w...
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fttriple:oai:gotriple.eu:10670/1.62wrd6 2023-05-15T17:33:08+02:00 Contrasted optimal environmental windows for both sardinella species in Senegalese waters Diankha, Ousmane Ba, Aliou Brehmer, Patrice Brochier, Timothee Sow, Bamol Ali Thiaw, Modou Gaye, Amadou Thierno Ngom, Fambaye Demarcq, Herve https://doi.org/10.1111/fog.12257 https://archimer.ifremer.fr/doc/00611/72299/71189.pdf https://archimer.ifremer.fr/doc/00611/72299/71190.pdf https://archimer.ifremer.fr/doc/00611/72299/ en eng Wiley doi:10.1111/fog.12257 10670/1.62wrd6 https://archimer.ifremer.fr/doc/00611/72299/71189.pdf https://archimer.ifremer.fr/doc/00611/72299/71190.pdf https://archimer.ifremer.fr/doc/00611/72299/ Archimer, archive institutionnelle de l'Ifremer Fisheries Oceanography (1054-6006) (Wiley), 2018-07 , Vol. 27 , N. 4 , P. 351-365 envir geo Text https://vocabularies.coar-repositories.org/resource_types/c_18cf/ fttriple https://doi.org/10.1111/fog.12257 2023-01-22T17:01:24Z We investigate Sardinella aurita and Sardinella maderensis recruitment success relative to the variability of oceanographic conditions in Senegalese waters using generalized additive models (GAM). Results show that recruitment of both species is marked by a strong intra-annual (seasonal) variation with minimum and maximum in winter and summer, respectively. Their interannual variations are synchronous until 2006 (recruitment decreasing), while from 2007 there is no synchrony. The model developed shows that sardinella recruitment variability is closely related to the tested environmental variables in the study area. However, the key environmental variables influencing the recruitment success are different for both species: the Coastal Upwelling Index and the sea surface temperature for S.aurita and S.maderensis, respectively. We report that recruitment success of S.aurita and S.maderensis are associated with distinct ranges of sea surface temperature, upwelling intensity, wind-induced turbulence, concentration of chlorophyll-a and north Atlantic oscillation index. Considering food security and socio-economic importance of both stocks, we recommend that consideration is given to the environmental variability in the small pelagic fish national management plans, particularly in the context of climate change. Text North Atlantic North Atlantic oscillation Unknown Gam ENVELOPE(-57.955,-57.955,-61.923,-61.923) Fisheries Oceanography 27 4 351 365 |
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language |
English |
topic |
envir geo |
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envir geo Diankha, Ousmane Ba, Aliou Brehmer, Patrice Brochier, Timothee Sow, Bamol Ali Thiaw, Modou Gaye, Amadou Thierno Ngom, Fambaye Demarcq, Herve Contrasted optimal environmental windows for both sardinella species in Senegalese waters |
topic_facet |
envir geo |
description |
We investigate Sardinella aurita and Sardinella maderensis recruitment success relative to the variability of oceanographic conditions in Senegalese waters using generalized additive models (GAM). Results show that recruitment of both species is marked by a strong intra-annual (seasonal) variation with minimum and maximum in winter and summer, respectively. Their interannual variations are synchronous until 2006 (recruitment decreasing), while from 2007 there is no synchrony. The model developed shows that sardinella recruitment variability is closely related to the tested environmental variables in the study area. However, the key environmental variables influencing the recruitment success are different for both species: the Coastal Upwelling Index and the sea surface temperature for S.aurita and S.maderensis, respectively. We report that recruitment success of S.aurita and S.maderensis are associated with distinct ranges of sea surface temperature, upwelling intensity, wind-induced turbulence, concentration of chlorophyll-a and north Atlantic oscillation index. Considering food security and socio-economic importance of both stocks, we recommend that consideration is given to the environmental variability in the small pelagic fish national management plans, particularly in the context of climate change. |
format |
Text |
author |
Diankha, Ousmane Ba, Aliou Brehmer, Patrice Brochier, Timothee Sow, Bamol Ali Thiaw, Modou Gaye, Amadou Thierno Ngom, Fambaye Demarcq, Herve |
author_facet |
Diankha, Ousmane Ba, Aliou Brehmer, Patrice Brochier, Timothee Sow, Bamol Ali Thiaw, Modou Gaye, Amadou Thierno Ngom, Fambaye Demarcq, Herve |
author_sort |
Diankha, Ousmane |
title |
Contrasted optimal environmental windows for both sardinella species in Senegalese waters |
title_short |
Contrasted optimal environmental windows for both sardinella species in Senegalese waters |
title_full |
Contrasted optimal environmental windows for both sardinella species in Senegalese waters |
title_fullStr |
Contrasted optimal environmental windows for both sardinella species in Senegalese waters |
title_full_unstemmed |
Contrasted optimal environmental windows for both sardinella species in Senegalese waters |
title_sort |
contrasted optimal environmental windows for both sardinella species in senegalese waters |
publisher |
Wiley |
url |
https://doi.org/10.1111/fog.12257 https://archimer.ifremer.fr/doc/00611/72299/71189.pdf https://archimer.ifremer.fr/doc/00611/72299/71190.pdf https://archimer.ifremer.fr/doc/00611/72299/ |
long_lat |
ENVELOPE(-57.955,-57.955,-61.923,-61.923) |
geographic |
Gam |
geographic_facet |
Gam |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Archimer, archive institutionnelle de l'Ifremer Fisheries Oceanography (1054-6006) (Wiley), 2018-07 , Vol. 27 , N. 4 , P. 351-365 |
op_relation |
doi:10.1111/fog.12257 10670/1.62wrd6 https://archimer.ifremer.fr/doc/00611/72299/71189.pdf https://archimer.ifremer.fr/doc/00611/72299/71190.pdf https://archimer.ifremer.fr/doc/00611/72299/ |
op_doi |
https://doi.org/10.1111/fog.12257 |
container_title |
Fisheries Oceanography |
container_volume |
27 |
container_issue |
4 |
container_start_page |
351 |
op_container_end_page |
365 |
_version_ |
1766131541818212352 |