Relationships between the Dominant Phytoplankton and DIN:DIP Ratios in Osaka Bay and Harima-nada

Autor:	Masaki Nakajima, Kazutaka Miyahara, Koji Tsujino, Yutaka Hori, Nobuo Araki, Yoichi Yoshida, Yasuhiko Sakai, Satoshi Nagai, Keigo Yamamoto
Rok vydání:	1998
Předmět:	biology Ecology Environmental chemistry Noctiluca scintillans Phytoplankton Ceratium furca Chaetoceros Water quality Aquatic Science biology.organism_classification Gymnodinium mikimotoi Bay Rhizosolenia fragilissima
Zdroj:	NIPPON SUISAN GAKKAISHI. 64:243-248
ISSN:	1349-998X 0021-5392
DOI:	10.2331/suisan.64.243
Popis:	The relationships between the dominant phytoplankton and the water quality factors were examined at seven stations in Osaka Bay and Harima-nada (1995-1996).Monthly changes of water quality factors in Osaka Bay and Harima-nada showed that DIN (dissolved inorganic nitrogen):DIP (dissolved inorganic phosphorus) and TP (total phosphorus):DIP ratios were high in May and June, while DIN:DIP ratio was low and TN (total nitrogen):DIN ratio was high in August and September.The relationships between the dominant phytoplankton and the water quality factors were considerably variable and complex. Skeletonema costatum, Pseudonitzschia spp., Rhizosolenia fragilissima, and Eucampia zodiacus occurred in waters with high DIN:DIP ratio (>100), Ceratium furca, Noctiluca scintillans, Prorocentrum micans, Leptocylindrus danicus, Gyrodinium spirals, Mesodinium rubrum, and Prorocentrum triestinum did with moderate DIN:DIP ratio, and Gymnodinium mikimotoi, Rhizosolenia setigera, Chaetoceros curvisetum, and C. affinis did with low DIN:DIP ratio (
Databáze:	OpenAIRE
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