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Changes in phytoplankton composition in a M editerranean coastal lagoon in the C ullera E stany ( C omunitat V alenciana, S pain)
Author(s) -
Pachés Maria,
Romero Inmaculada,
MartínezGuijarro Remedios,
Martí Carmen M.,
Ferrer José
Publication year - 2014
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/wej.12020
Subject(s) - phytoplankton , salinity , water column , picoplankton , nutrient , plankton , oceanography , algal bloom , environmental chemistry , chemistry , environmental science , ecology , biology , geology
Abstract The C ullera E stany is a coastal lagoon located in a highly intensified agriculture and tourist area in V alencia. This coastal lagoon has connections with the sea that produce marine intrusion and generate a freshwater interface. Four sampling campaigns were carried out during 2010 in order to analyse the phytoplankton composition and its relation to nutrient content through a R edundancy A nalysis. Temperature, dissolved oxygen, nitrite and salinity are the main factors controlling the dynamics of phytoplankton community. During J uly and O ctober, there is water column stratification; meanwhile in M arch, there is a well‐mixed water column. In addition, in M ay and J uly campaigns, hypoxia/anoxia conditions are detected at the bottom. The most abundant phytoplankton groups are D iatoms and C ryptophyceae. D iatoms and C yanophyceae respond positively to temperature while C ryptophyceae, P rasinophyceae and D inophyceae respond to high salinity and dissolved oxygen values. Furthermore, picoplankton is correlated inversely with nutrient concentrations.