You are here: Home / News /

News and Features by Region Oregon Archives - News and Features

Upwelling Controls HAB Movement toward Pacific NW Coast

Models developed by NCCOS-sponsored researchers will predict the transport of harmful algal blooms (HABs) to coastal beaches or offshore from two locations off of Washington and Oregon, based on the influence of the Columbia River Plume and seasonal upwelling (displacement of surface water by cool, nutrient rich, deep water). A recent study determined that upwelling plays […]

Continue reading

Primary Cause of Dead Zones is Biological on Pacific Northwest Continental Shelves

Coastal waters of the northern portion of the California Current System experience a seasonal decline in oxygen concentrations and increasing hypoxia (dead zones) over the summer upwelling season resulting in negative impacts to many organisms. NCCOS-sponsored research modelling determined that plankton respiration was the leading influence on seasonal and interannual fluctuations in oxygen concentration and hypoxia in the […]

Continue reading

Origins of Harmful Alga Scourge in Pacific Northwest Confirmed

Researchers have identified the oceanographic causes and routes for the harmful alga Pseudo-nitzschia in offshore waters of the Pacific Northwest. The team’s validated model shows that toxic Pseudo-nitzschia cells arrive at the coast, not from a single source (as previously thought), but from two sources, one north and one south of Washington’s beaches. The northern source […]

Continue reading

NCCOS HAB Partner Honored by White House

On June 25, NCCOS HAB Program partner Dr. Julia K. Parrish was honored as a Champion of Change by the White House.  Dr. Parrish is the founder and executive director of the Coastal Observation and Seabird Survey Team (COASST), a group that organizes coastal residents to monitor beach-cast seabird carcasses in California, Oregon, Washington and […]

Continue reading

West Coast Harmful Algal Bloom Observing System Design Paper Published

A recently published research paper describes the minimum requirements for an effective harmful algal bloom (HAB) observing system for the U.S. west coast to mitigate HAB impacts.  HAB observing systems provide early warning and forecasting of HAB events to guide decisions to close shellfish harvesting to protect human health, avoid mortality of protected species, and encourage aquaculture […]

Continue reading

Extreme Weather: A Mixed Bag for Dead Zones | WRI Insights

This post was co-authored with Bob Diaz, a WRI partner and professor at the Virginia Institute of Marine Science. This year’s extreme weather events—a warm winter, even warmer summer, and a drought that covered nearly two-thirds of the continental United States—has certainly caused its fair share of damages. But despite the crop failures, water shortages, […]

Continue reading

Research Paper Documents History, Impacts of West Coast Harmful Algae Species

A recent research paper presents the state-of-knowledge on harmful algae along the west coast of North America. Along the Pacific coast of North America, from Alaska to Mexico, harmful algal blooms (HABs) are responsible for losses to natural resources and coastal economies, and have sickened and killed humans and animals for decades. Recent reports indicate […]

Continue reading

Algae Monitoring Protects Oregon Recreational Shellfish Gatherers–For Now

On July 6th, the Oregon Department of Agriculture (ODA) and the Oregon Department of Fish and Wildlife (ODFW) announced the closure of recreational mussel harvesting for over 120 miles of Oregon Coast from Tillamook Head south to Heceta Head due to elevated levels of paralytic shellfish toxins (PST).  The closure includes mussels found on the […]

Continue reading