Chattonella (Raphidophyceae) bloom spatio-temporal variations in Tachibana Bay and the southern area of Ariake Sea, Japan: Interregional displacement patterns with Skeletonema (Bacillariophyceae). Issue 1 (15th October 2015)

• Record Type: Journal Article
• Authors: Aoki, Kazuhiro; Onitsuka, Goh; Shimizu, Manabu; Yamatogi, Toshifumi; Ishida, Naoya; Kitahara, Shigeru; Hirano, Keiji
• Is Part Of: Marine pollution bulletin. Volume 99:Issue 1/2(2015)
• Page Start: 54
• Page End: 60
• Publication Date: 2015-10-15
• Subjects: Chattonella -- Skeletonema -- Low salinity water -- Tachibana Bay -- Ariake Sea; Marine pollution -- Periodicals; Marine Biology -- Periodicals; Water Pollution -- Periodicals; Mer -- Pollution -- Périodiques; Publications périodiques; Pollution des mers; Lutte antipollution; Electronic journals; 363.7394
• DOI: 10.1016/j.marpolbul.2015.07.063
• Languages: English
• ISSNs: 0025-326X

Abstract

Graphical abstract: Highlights: In 2010, a massive bloom of the Chattonella occurred in the Ariake Sea and Tachibana Bay. The development and decline of the bloom occurred three times in Tachibana Bay. The bloom was transported with the low salinity water from the Ariake Sea to Tachibana Bay. The predominant species changed from Chattonella to Skeletonema along the Shimabara Peninsula. 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.