HOME >> BIOLOGY >> NEWS
Small, slow growing urchin variety could affect commercial harvest

ORONO, Maine -- The discovery of a type of slow growing sea urchin that never attains legal size for harvesting in Maines coastal waters has been reported by a team of scientists led by Robert Vadas, marine biologist at the University of Maine. If the finding is supported by further research, it suggests that harvesting legal size urchins could cause a shift in the urchin population toward a non-harvestable stock.

The report was published in the scientific journal Ecological Monographs in February. Vadas is a professor in the UMaine Department of Biological Sciences and School of Marine Sciences. Co-authors include Barry D. Smith of the Canadian Wildlife Service, Brian Beal of the University of Maine at Machias and Tim Dowling, a former UMaine graduate student now of Tenants Harbor. The Island Institute of Rockland assisted by providing ship time.

Worldwide, the U.N. Food and Agriculture Organization reports that fishermen harvested about 262 million pounds of urchins in 1999.

In Maine, the urchin harvest is down considerably from its 1993 peak but still brings in significant revenue. In 2000, harvesters landed about 12 million pounds of urchins worth more than $17 million. The 1993 record of 41 million pounds was worth about $26 million, according to the Maine Department of Marine Resources. Vadas and his colleagues began planning the research in the mid-1990s. "Our original idea was to use a new technique that I had brought back from Norway for determining the age of sea urchins," says Vadas. "We wanted to understand basic aspects of urchin biology, such as their life expectancy, how fast they grow and when they reach reproductive age. Finding two separate groups within the population was a real surprise to us."

The scientists collected urchins from carefully selected spots in two locations along the Maine coast, the Schoodic Peninsula just east of Ellsworth and Allen Island southwest of Port Clyde. After tallying
'"/>

Contact: Robert Vadas
vadas@maine.edu
207-581-2974
University of Maine
28-Mar-2002


Page: 1 2 3

Related biology news :

1. Small, Smac-like molecule encourages death of cancer cells
2. Small, cold, & hungry: Ultra-small microbes from 120,000-year-old glacier ice sample
3. Small, mountain rivers play big role in ocean sediment
4. Symposium examines the growing influence of aerosols on climate
5. Report details growing climate change threat to coral reefs
6. Eastern Europe urged to prepare now for growing threat of HIV resistance
7. Nerac again named one of Connecticuts fastest growing technology companies
8. UMHS researchers find clues to growing new jawbones in cancer patients after radiation therapy
9. New findings in yeast may reveal why growing older is the greatest carcinogen in humans
10. Long-term natural gas supplies should meet growing demand in coming decades, study finds
11. Carnegie Mellon develops new process for growing bone

Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Small slow growing urchin variety could affect commercial harvest

(Date:4/22/2014)... to Asia to coordinate with allies and reconfirm ... the Office of Naval Research (ONR) emphasized today ... an example of strong and growing ties between ... region. , The APTEP program, centered in Hawaii ... development of alternative energy technologies. It takes a ...
(Date:4/22/2014)... French . ... the complete genome and subsequent phylogenetic analysis show that ... that is distinct from strains previously identified in the ... also linked the laboratory confirmed cases with the initial ... virus is a lethal, highly contagious virus for which ...
(Date:4/22/2014)... that exposure to environmental enrichment can induce ... learning and memory. Previous studies have demonstrated ... the superficial layer of the cerebral cortex ... and these neurons exhibit very weak properties ... Whether environmental enrichment has an impact on ...
Breaking Biology News(10 mins):Full power: Alternative energy partnerships flourish in Asia 2Full power: Alternative energy partnerships flourish in Asia 3Inserm and the Institut Pasteur identify a new variant of Ebola virus in Guinea 2
(Date:1/14/2014)... Jan. 14, 2014 As pet owners drew up their lists ... them wrote: "Take better care of my furry companion." Nowadays there ... and top-brand carrying cases to take the little canine or feline ... feel compelled to buy some pricey toys at the pet store. ...
(Date:1/14/2014)... and BETHESDA, Md. , Jan. 14, ... with two institutes from the National Institutes of Health ... bringing safer, more effective treatments to patients on a ... for Advancing Translational Sciences (NCATS) and the National Eye ...
(Date:1/14/2014)... 2014  RXi Pharmaceuticals Corporation (OTCQX: RXII), a biotechnology ... therapies addressing major unmet medical needs using RNA-targeted ... of Allowance from the United States Patent and ... (sd-rxRNA®), for the treatment of fibrosis. The patent ...
(Date:1/14/2014)... USA, and Cardiff, UK (PRWEB) January 13, 2014 ... technology development leader with more than 20 years in ... for optics and photonics . Hainsey will serve as ... delighted to have Dr. Hainsey join SPIE as our ...
Breaking Biology Technology:New Year's Resolution: Give Pets the Gift of Top-Notch Health Care 2Organovo Announces Collaboration with National Institutes of Health 2Organovo Announces Collaboration with National Institutes of Health 3RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 2RXi Pharmaceuticals Receives US Notice of Allowance for a Key Patent Relating to its Self-Delivering Technology with sd-rxRNAs targeting CTGF, including RXI-109, for the Treatment of Fibrotic Disorders 3Photonics R&D Leader Bob Hainsey Joins SPIE Technical Staff 2
Cached News: