Data/hora: 01/06/2024 11:36:20

Provedor de dados: | 5
País: | France
Título: | Scales characterising a high density thin layer of Dinophysis acuta Ehrenberg and its transport within a coastal jet
Autores: | Farrell, Hazel; Gentien, Patrick; Fernand, Liam; Lunven, Michel; Reguera, Beatriz; Gonzalez-gil, Sonsoles; Raine, Robin.
Data: | 2012-03
Ano: | 2012
Palavras-chave: | Coastal jets; Dinophysis; Ireland; Transport.
Resumo: | An investigation into the distribution of Dinophysis spp. in coastal waters off the south coast of Ireland was carried out in July 2007. Dinophysis acuta was present as a sub surface layer containing up to 55,000 cells L-1. The population had a high percentage of viable cells (mean: 89%; median: 94%; n = 24) with a high specific division rate (~0.55 d-1). The layer, of approximately 5 m thickness, did not coincide with the fluorescence maximum and was present as a patch of horizontal dimension less than 10 km x 7 km. Both conventional and towed undulating CTD used in conjunction with high vertical resolution sampling methods showed the patch of Dinophysis to move with a similar speed and direction as the coastal flow, which ran parallel to the coast in the form of a coastal jet with speed of the order of 6.5–7 km day-1. The implications of the alongshore transport of populations of harmful species in coastal jets for monitoring programmes and predictive models are discussed.
Tipo: | Text
Idioma: | Inglês

Identificador:

http://archimer.ifremer.fr/doc/00064/17538/17420.pdf

DOI:10.1016/j.hal.2011.11.003

Editor: | Elsevier Science Bv
Relação: | http://archimer.ifremer.fr/doc/00064/17538/
Formato: | application/pdf
Fonte: | Harmful Algae (1568-9883) (Elsevier Science Bv), 2012-03 , Vol. 15 , P. 36-46
Fonte: | 2011 Elsevier B.V.