Reasons for massive starfish dieoff still unknown

 

Here’s some shocking news: Since last fall, when I first wrote about Pacific sea stars falling victim to a mysterious disease, turning into goo and dying, the aptly-named “starfish wasting syndrome” has not – as scientists hoped – subsided on its own. It’s gotten much, much worse.

How much worse, you ask? Well, from the get-go, this iteration of starfish wasting was more widespread and severe than previous outbreaks, which have historically spiked during warm-water El Niño years and then quickly subsided. By the time it was identified late last summer, the disease had already caused localized die-offs of up to 95 percent of ochre sea stars in Santa Cruz, California, and was spotted as far north as Alaska. Tens of thousands of starfish simply wasted away and died, literally before researchers’ eyes.

Yet it seemed for a while that Washington and Oregon would be spared. This May, just over 1 percent of ochre sea stars in Oregon were affected. But now – a mere four weeks later – an estimated 30 to 50 percent are dying, and scientists predict a 100 percent mortality rate in some places. In parts of Washington’s San Juan Islands, mortality jumped from 10 to 40 percent over the course of a single week in June, and the disease has now been confirmed in more than a dozen species. “This is an unprecedented event,” says Bruce Menge, a marine biologist at Oregon State University. “We’ve never seen anything of this magnitude before.”

An ochre sea star with starfish wasting syndrome turns to mush. Courtesy Elizabeth Cerny-Chipman/Oregon State University

By now, you might well be wondering what’s behind this intertidal horror show. Funny you should ask. Though the outbreak has prompted a slew of research and emergency funding from the National Science Foundation, no one really knows. We’re 11 months into an epidemic that could wreak havoc on entire ecosystems from Mexico to Alaska, and we can’t pin down the cause. It’s like the bubonic plague is striking our oceans, and we’re stuck in the dark ages.

High Country News Classifieds
  • EXECUTIVE DIRECTOR
    Deschutes River Conservancy in Bend, Oregon
  • WATER POLICY ANALYST WITH WRA (BOULDER)
    Position Summary: Western Resource Advocates seeks a passionate Water Policy Analyst with knowledge of western water issues to join our Healthy Rivers Team to strengthen...
  • GILA NATIONAL FOREST
    9+ acre inholding. Passive solar strawbale off the grid and next to the Continental Divide Trail in ponderosa pine/doug fir forest at 7400.
  • HIRING BEARS EARS EDUCATION CENTER DIRECTOR
    Conservation nonprofit Friends of Cedar Mesa in Bluff, Utah is hiring an Education Center Director to oversee the operation of the Bears Ears Education Center....
  • PROGRAM MANAGER, SUSTAINING FLOWS
    Friends of the Verde River, Cottonwood, AZ. Apply at https://verderiver.org/employment-opportunities/
  • PROGRAM ASSOCIATE - VERDE RIVER EXCHANGE
    Verde River Exchange - Friends of the Verde River, Cottonwood, AZ. Apply at https://verderiver.org/employment-opportunities/
  • CODE COMPLIANCE OFFICER
    Teton County Planning & Building is hiring! Our ideal candidate is a team-player, a problem-solver, pays attention to detail, and can clearly communicate technical material...
  • ARCHITECTURE DRAFTSPERSON/PROJECT MANAGER
    Studio Architects is seeking a full time Architectural drafts-person/project manager with1-3 years of experience to join our firm. At Studio Architects our mission is to...
  • ASSISTANT MANAGER/TRAINEE, COLORADO RANCH
    needed for 16,000+ acre conservation property in south central Colorado. Qualified candidate would have experience working on a ranch or wilderness property, general forestry/fire management...
  • FARM HAND &/OR NANNY IN ESCALANTE
    Nanny for 18-mnth-old. Yearly salary, vacation, health insurance. Spanish/other foreign-language native spkr prefrrd.
  • EXECUTIVE DIRECTOR
    Washington Association of Land Trusts seeks an ED to build on WALTs significant success & to lead the association to new levels of achievement. See...
  • BEAUTIFUL CUSTOM STRAWBALE HOME IN WESTERN COLORADO!
    Secluded, energy efficient Southwestern home on 40 wooded acres. Broker - Rand Porter - United Country Real Colorado Properties. 970-261-1248, $425K
  • FORMER RETREAT CENTER/CONSERVATION PROPERTY FOR SALE
    57 acres in Skull Valley, AZ, 17 miles from Prescott, year-round creek, swimming holes, secluded canyon, hiking/meditation trails, oaks, pines, garden, greenhouse. House, office building,...
  • ARIZONA PUBLIC LANDS ORGANIZER
    Title: Public Lands Organizer About the Arizona Wildlife Federation (AWF) The AWF is a non-profit organization dedicated to educating, inspiring, and assisting individuals and organizations...
  • HISTORIC RANCH HOME W/ 20 ACRES
    Historic 1893 Ranch Headquarters. 4 Bdrm, 3.5 Ba, 4000 ft2. Remodeled 2002. Includes 2 studio apts, stables, arena, workshop, 5 RV hookups. Chirachua & Peloncillo...
  • VICE PRESIDENT OF RETAIL OPERATIONS
    The Vice President of Retail Operations will provide overall leadership and accountability for purchasing, product development, merchandising planning, visual merchandising, retail operational excellence, oversight and...
  • ASSOCIATE DIRECTOR
    Grand Staircase Escalante Partners seeks an experienced fundraiser with excellent communication and organizational skills.
  • PROGRAM MANAGER
    position in Phoenix with the Babbitt Center for Land and Water Policy.
  • ROADS END CABIN NEAR YELLOWSTONE
    Vaulted ceilings, two fireplaces, two bedrooms, loft, jetted tub, wifi. Forest, mountain views. Wildlife. [email protected]
  • ACCOUNTING CLERK
    Our director is seeking to employ the services of an Accounting Clerk to assist with various accounting and administrative tasks. This is a great opportunity...