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Title: Interannual variability in early life phenology is driven by climate and oceanic processes in two NE Atlantic flatfishes
Authors: Vaz, Ana 
Primo, Ana Lígia 
Crespo, Daniel 
Pardal, Miguel Ângelo 
Martinho, Filipe 
Issue Date: 11-Mar-2023
Publisher: Scientific Reports
Project: national funds (OE), through Fundação para a Ciência e Tecnologia, I.P. (FCT), in the scope of a PhD Grant (AV; SFRH/BD/137862/2018) and Decree-Law 57/2016 (FM, ALP). This work was supported by the FCT in the scope of the research project “Mytag—Integrating natural and artificial tags to reconstruct fish migrations and ontogenetic niche shifts” (PTDC/MAREST/ 2098/2014), under the Project 9471—Reforçar a Investigação, o Desenvolvimento Tecnológico e a Inovação (Projeto 9471-RIDTI) and subsidized by the European Regional Development Fund (FEDER, POCI-01-0145- FEDER-016787), and by the strategic plan of the Centre for Functional Ecology—Science for People and the Planet (CFE; UIDB/04004/2020), financed by FCT/MCTES through national funds (PIDDAC). Additional support was also obtained via project “RENATURE—Valorization of the Natural Endogenous Resources of the Centro Region” (CENTRO-01-0145-FEDER-000007), funded by the Comissão de Coordenação da Região Centro 
Serial title, monograph or event: Scientific Reports
Volume: 13
Issue: 1
Abstract: Early life phenology is a crucial factor for population dynamics in a climate change scenario. As such, understanding how the early life cycle of marine fishes is influenced by key oceanic and climate drivers is of chief importance for sustainable fisheries. This study documents interannual changes in early life phenology of two commercial flatfishes: European flounder (Platichthys flesus) and common sole (Solea solea) from 2010 to 2015 based on otolith microstructure. Using GAMs, we looked for correlations of the North Atlantic Oscillation (NAO), Eastern Atlantic pattern (EA), sea surface temperature (SST), chlorophyl a concentration (Chla) and upwelling (Ui) variation with the onset of hatch, metamorphosis, and benthic settlement day. We concluded that higher SST, more intensive upwelling, and EA were coincident with a later the onset of each stage, while increasing NAO induces an earlier onset of each stage. Although similar to S. solea, P. flesus showed a more complex interaction with the environmental drivers, most possibly because it is at its southern limit of its distribution. Our results highlight the complexity of the relationship between climate conditions and fish early life history, particularly those with complex life cycles that include migrations between coastal areas and estuaries.
ISSN: 2045-2322
DOI: 10.1038/s41598-023-30384-7
Rights: openAccess
Appears in Collections:FCTUC Ciências da Vida - Artigos em Revistas Internacionais
I&D CFE - Artigos em Revistas Internacionais

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