Data/hora: 29/05/2024 08:49:10

Provedor de dados: 	Institutional Archive of Ifreme (ArchiMer)	
País: 	France	
Título: 	Arctic mid-winter phytoplankton growth revealed by autonomous profilers	
Autores: 	Randelhoff, Achim; Lacour, Léo; Marec, Claudie; Leymarie, Edouard; Lagunas, José; Xing, Xiaogang; Darnis, Gérald; Penkerc’h, Christophe; Sampei, Makoto; Fortier, Louis; D’ortenzio, Fabrizio; Claustre, Hervé; Babin, Marcel.	
Data: 	2020-09	
Ano: 	2020	
Resumo: 	It is widely believed that during winter and spring, Arctic marine phytoplankton cannot grow until sea ice and snow cover start melting and transmit sufficient irradiance, but there is little observational evidence for that paradigm. To explore the life of phytoplankton during and after the polar night, we used robotic ice-avoiding profiling floats to measure ocean optics and phytoplankton characteristics continuously through two annual cycles in Baffin Bay, an Arctic sea that is covered by ice for 7 months a year. We demonstrate that net phytoplankton growth occurred even under 100% ice cover as early as February and that it resulted at least partly from photosynthesis. This highlights the adaptation of Arctic phytoplankton to extreme low-light conditions, which may be key to their survival before seeding the spring bloom.	
Tipo: 	Text	
Idioma: 	Inglês	
Identificador: 	https://archimer.ifremer.fr/doc/00652/76416/77468.pdf

https://archimer.ifremer.fr/doc/00652/76416/77469.pdf

DOI:10.1126/sciadv.abc2678

https://archimer.ifremer.fr/doc/00652/76416/	
Editor: 	American Association for the Advancement of Science (AAAS)	
Formato: 	application/pdf	
Fonte: 	Science Advances (2375-2548) (American Association for the Advancement of Science (AAAS)), 2020-09 , Vol. 6 , N. 39 , P. eabc2678 (10p.)	
Fonte: 	info:eu-repo/semantics/openAccess

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