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Session 5. Harmful algal blooms in a changing world

Co-Convenors: Tatiana Morozova (Russia) and Mark Wells (U.S.A.)

Invited Speaker:
Feixue Fu (University of Southern California, U.S.A.)

The impacts of regional and global climate change and other anthropogenic forcing on the initiation, frequency and severity of harmful algal blooms (HABs) are widely anticipated but are difficult to identify. Often these “blooms” reflect subtle adjustments in the relative proportion of HAB species within a larger, more abundant phytoplankton community. In others, new blooms may reflect the possible climate-driven range extension of HAB species, but direct evidence that previous environmental conditions were unfavorable for bloom development normally is lacking. Ascribing HAB events to specific, but slowly evolving driving forces, will demand comparative observations among similar but geographically separated ecosystems. This session invites papers that focus on emerging toxic and ecosystem disruptive HAB events as well as changing plankton assemblages that are evolving towards more frequent or intense HAB incidents. Papers addressing long-term time series data, land use changes, effects of macro- or micro-nutrient stress on cell physiology, trophic interactions, and the impacts of changing riverine runoff, ocean development (e.g., aquaculture, wind turbines), and ocean acidification are particularly encouraged. The goal of the session is to help formulate a better understanding of conditions enhancing the success of HAB species.

 
Tuesday, October 18
 

Feixue Fu
Global change and the future of toxic algal blooms in the North Pacific Ocean (Invited)
(pdf, 1.6 Mb)

 

Tetsuya Nishikawa, Yutaka Hori, Satoshi Nagai, Kazutaka Miyahara, Yukinobu Nakamura, Kazuhiro Harada, Minoru Tanda, Takehiko Manabe, Kuninao Tada and Ichiro Imai
Long term (35 years) observations in dynamics of nutrients and phytoplankton including the harmful diatom Eucampia zodiacus in Harima-Nada, eastern Seto Inland Sea, Japan
(pdf, 1.1 Mb)

 

Raphael M. Kudela, Mati Kahru, John Ryan and Dave Foley
Decadal changes in dinoflagellate abundance in the Central California Current Region
(pdf, 0.9 Mb)

 
Marina S. Selina, Tatiana V. Morozova, Nellya G. Litvinova, Dmitry I. Vyshkvartsev and Tatiana Yu. Orlova
Seasonal dynamics and spatial distribution of Ostreopsis spp. in the Peter the Great Bay, the Sea of Japan
(pdf, 0.8 Mb)
 
Akira Ishikawa, Yumi Takeichi, Setsuko Sakamoto and Mineo Yamaguchi
Year-round occurrence of the benthic dinoflagellate Gambierdiscus sp. in temperate coastal waters of Japan
(pdf, 1.8 Mb)
 
Mingyuan Zhu and Ruixiang Li
HAB in coastal waters of China in 2010
(pdf, 1.9 Mb)
 
Ekaterina V. Lepskaya
Toxic micro alga in Okhotsk Sea in Kamchatka shore
(pdf, 2 Mb)
 
Stephanie K. Moore, Vera L. Trainer, Nathan J. Mantua and Eric P. Salathé, Jr.
Future scenarios for environmental conditions favoring the accumulation of paralytic shellfish toxins in Puget Sound shellfish
(pdf, 0.9 Mb)
 
Raphael M. Kudela, John P. Ryan and Jenny Q. Lane
Multiple, simultaneous harmful algal bloom organisms and toxins in the California Current: An emerging threat?
(pdf, 0.9 Mb)
 
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