Navigation Links
'Hot spot' for toxic harmful algal blooms discovered off Washington coast
Date:1/30/2009

A part of the Strait of Juan de Fuca, which separates Washington state from Canada's British Columbia, is a potential "hot spot" for toxic harmful algal blooms affecting the Washington and British Columbia coasts.

Marine scientists found that under certain conditions, toxic algal cells from an offshore "initiation site" break off and are transported to nearshore areas, where they may trigger harmful algal blooms that ultimately force the closure of Washington state shellfish beds along beaches.

"Knowing more about these blooms is critical for protecting human and ecosystem health," said David Garrison, director of the National Science Foundation (NSF)'s Biological Oceanography Program, which co-funded the research. "This research is a very successful step toward addressing harmful algal blooms in the U.S."

The study, conducted by a team of scientists from NOAA's Fisheries Service, San Francisco State University and the universities of Washington, Maine and Western Ontario, is part of the interagency Ecology and Oceanography of Harmful Algal Blooms Pacific Northwest Program.

"Understanding how and where harmful algal blooms originate will help provide early warnings to protect human health and reduce the impact of biotoxins on coastal shellfisheries," said Vera Trainer, lead author of a paper published in the January issue of the journal Limnology & Oceanography, and a scientist at the NOAA Fisheries Northwest Fisheries Science Center in Seattle.

Scientists noted that the Juan de Fuca eddy, a circular water mass rotating some 30 miles off the northern coast of Washington at the mouth of the Juan de Fuca Strait, frequently contained significant populations of the microscopic toxic alga, Pseudo-nitzschia.

Over the course of the five-year study, the researchers took thousands of measurements at sea and conducted experiments onboard research vessels and in their laboratories. They hoped to better understand the factors that initiate and sustain the growth of this toxic alga, and to determine why it produces a deadly biotoxin.

This naturally-produced biotoxin, domoic acid, can accumulate in shellfish, crabs and some fish.

By attacking the nervous system it can cause adverse health effects or death in birds, marine mammals and humans who consume affected marine species. Fishing communities may suffer severe economic losses as a result of closures of recreational, subsistence and commercial harvesting, and lost tourism.


'/>"/>

Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
Source:Eurekalert

Related biology news :

1. Researchers identify 4 genetic hotspots associated with psoriasis
2. BIO-key(R) Fingerprint Biometrics Media Spotlights
3. Molecules in the spotlight
4. New model predicts hot spots for mercury in fish
5. Jupiters shrinking red spot
6. Neuroinformatics special issue spotlights the Neuroscience Information Framework
7. Spotlight on cosmetic ingredients conference
8. Farmers can spot lame sheep, but fail to prevent footrot spread
9. New method identifies meth hot spots
10. Major European program for the environment under the spotlight in Lille, France
11. Fossil and molecular evidence reveals the history of major marine biodiversity hotspots
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/30/2017)... Trends, opportunities and forecast in this market ... (fingerprint, AFIS, iris recognition, facial recognition, hand geometry, vein ... use industry (government and law enforcement, commercial and retail, ... others), and by region ( North America ... Pacific , and the Rest of the World) ...
(Date:3/24/2017)... The Controller General of Immigration from Maldives Mr. Mohamed ... received the prestigious international IAIR Award for the most innovative high security ... ... Maldives Immigration Controller General, ... picture on the right) have received the IAIR award for the "Most ...
(Date:3/22/2017)... 21, 2017   Neurotechnology , a provider ... today announced the release of the SentiVeillance ... improved facial recognition using up to 10 surveillance, ... computer. The new version uses deep neural-network-based facial ... it utilizes a Graphing Processing Unit (GPU) for ...
Breaking Biology News(10 mins):
(Date:8/15/2017)... NC (PRWEB) , ... August 15, 2017 , ... ... 2017, celebrating 10 years of successes helping medical technology companies and inventors develop and ... to a renowned full-service national engineering firm with a portfolio of clients in the ...
(Date:8/15/2017)... , ... August 15, 2017 , ... ... the largest Asian exhibitions for analytical and scientific instruments. This year’s symposium, organized ... “New Approaches in Mass Spectrometry for Bioanalytical Applications.” This dynamic presentation will discuss ...
(Date:8/15/2017)... (PRWEB) , ... August 15, 2017 , ... ... new family of 6” modular downlights designed to stay tightly sealed and perform ... areas where damp and wet location listings just aren't enough, such as: hospitals; ...
(Date:8/15/2017)... ... 15, 2017 , ... Coffea arabica accounts for 70 percent ... During this educational webinar, participants will learn about the importance of genomics for ... understanding of how genomics is important for coffee breeding improvement. , Attendees will ...
Breaking Biology Technology: