Microzooplankton grazing activity in the temperate and sub-tropical NE Atlantic: summer 1996

Autor:	Claire E. Stelfox-Widdicombe, Peter H. Burkill, Michael A. Sleigh, Elaine S. Edwards
Rok vydání:	2000
Předmět:	Ecology biology Aquatic Science biology.organism_classification Zooplankton Food web Prochlorophyta Oceanography Phytoplankton Dominance (ecology) Prochlorococcus Eutrophication Picoplankton Ecology Evolution Behavior and Systematics
Zdroj:	Marine Ecology Progress Series. 208:1-12
ISSN:	1616-1599 0171-8630
DOI:	10.3354/meps208001
Popis:	The role of microzooplankton herbivory in the fate of phytoplankton production was quantified within 2 biologically contrasting water masses in the NE Atlantic during the summertime. Seawater dilution experiments were conducted to quantify phytoplankton growth and losses due to grazing during 2 Lagrangian surveys, at 60° N and 37° N, in the vicinity of the 20° W meridian. Phytoplankton growth rates were higher during the northerly study at 60°N (mean 1.54 d -1 ) than at the southerly study, 37° N. Estimates of phytoplankton growth during the southerly study were corrected for photoadaptation, and the mean growth rate was 0.62 d -1 . The day-to-day pattern of phytoplankton mortality due to microzooplankton grazing was similar to the growth rates, with higher values recorded in the northerly study (1.25 d -1 ) and lower values at the southerly site (0.43 d -1 ). In the northerly waters, microzooplankton consumed up to 77% d -1 of the chlorophyll standing stock, while microzooplankton herbivory at the southerly site accounted for
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::077064c09dcc91ec40a1e9d8ca23c32e https://doi.org/10.3354/meps208001 Zobrazit plný text záznamu