Phytoplankton production and community structure in an unstable frontal region

Autor:	M. J. R. Fasham, Adrian Martin, Kelvin J. Richards
Rok vydání:	2001
Předmět:	Biomass (ecology) fungi Community structure Aquatic Science Biology Plankton Oceanography Zooplankton chemistry.chemical_compound Nitrate chemistry Phytoplankton Upwelling Ecosystem Ecology Evolution Behavior and Systematics
Zdroj:	Journal of Marine Systems. 28:65-89
ISSN:	0924-7963
DOI:	10.1016/s0924-7963(00)00084-1
Popis:	Results are presented for a two-phytoplankton model of an unstable frontal ecosystem. Vertical transport results in both an increased flux of nitrate to surface waters and to a transport of phytoplankton communities at a rate too rapid to track equilibrium. The former leads to an increase in primary production within the region by ∼10%. The latter is responsible for transient heterogeneity in distributions, especially of phytoplankton ratios. Although the inclusion of two size classes of phytoplankton does not appear to change significantly the total primary production compared to a single phytoplankton model, it does allow for a dynamic partitioning of phytoplankton biomass and production between the classes. This partitioning is controlled by biological responses to transport, dictated here by inter-class differences in nutrient limitation and mortality. Biological responses to upwelling are also shown to be dependent on the background nitrate profile.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::943cdb1a06873671a3a6e617e57f4698 https://doi.org/10.1016/s0924-7963(00)00084-1 Zobrazit plný text záznamu Full Text from ScienceDirect