Back to Search Start Over

Chattonella (Raphidophyceae) bloom spatio-temporal variations in Tachibana Bay and the southern area of Ariake Sea, Japan: Interregional displacement patterns with Skeletonema (Bacillariophyceae)

Authors :
Toshifumi Yamatogi
Goh Onitsuka
Shigeru Kitahara
Keiji Hirano
Manabu Shimizu
Kazuhiro Aoki
Naoya Ishida
Source :
Marine Pollution Bulletin. 99:54-60
Publication Year :
2015
Publisher :
Elsevier BV, 2015.

Abstract

In 2010, a massive bloom of the raphidophycean flagellate Chattonella occurred in the Ariake Sea and Tachibana Bay. Bloom dynamics and hydrographical conditions were examined by field survey. The development and decline of the bloom occurred three times in Tachibana Bay. First and third bloom developments synchronized with precipitation, and the second bloom developed in synchronization with a salinity decrease which occurred in relation to an increase of river discharge from the Chikugo River which takes several days to flow from the Ariake Sea. These results imply that the bloom was transported with the low salinity water from the Ariake Sea to Tachibana Bay. During blooms along the northern coast of Shimabara Peninsula, the predominant phytoplankton species changed from Chattonella to Skeletonema. Low salinity water intrusion induced an interregional difference of the Chattonella and Skeletonema bloom spatially-differentiated by the salinity in the Ariake Sea and Tachibana Bay.

Details

ISSN :
0025326X
Volume :
99
Database :
OpenAIRE
Journal :
Marine Pollution Bulletin
Accession number :
edsair.doi.dedup.....3d78fc73fc8bb4f56e0b9396f325a960
Full Text :
https://doi.org/10.1016/j.marpolbul.2015.07.063