Walleye pollock stock assessment in the Sea of Okhotsk in the spring of 2013

Walleye pollock stock assessment in the Sea of Okhotsk in the spring of 2013 The data on the stock assessment and structure of the walleye pollock population in the northern Sea of Okhotsk are based on trawl and ichthyoplankton surveys in April and May of 2013. As compared to the assessment of 2012, the total abundance of walleye pollock decreased by 1.8 times and its biomass decreased by 1.4 times. The low number of young-of-the-year, 1.6 × 109 ind., indicates that the 2012 year-class is weak. Three modal size and age groups of walleye pollock in the Sea of Okhotsk are clearly distinguished: 17–23 cm (2-year-olds), 30–36 cm (5-year-olds), and 37–53 cm (mature fish). In general for the sea, the exploitable walleye pollock stock is estimated at the average level, viz., 6.649 million tons. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Marine Biology Springer Journals

Walleye pollock stock assessment in the Sea of Okhotsk in the spring of 2013

Loading next page...
Pleiades Publishing
Copyright © 2014 by Pleiades Publishing, Ltd.
Life Sciences; Freshwater & Marine Ecology
Publisher site
See Article on Publisher Site


You’re reading a free preview. Subscribe to read the entire article.

DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 12 million articles from more than
10,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Unlimited reading

Read as many articles as you need. Full articles with original layout, charts and figures. Read online, from anywhere.

Stay up to date

Keep up with your field with Personalized Recommendations and Follow Journals to get automatic updates.

Organize your research

It’s easy to organize your research with our built-in tools.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

Monthly Plan

  • Read unlimited articles
  • Personalized recommendations
  • No expiration
  • Print 20 pages per month
  • 20% off on PDF purchases
  • Organize your research
  • Get updates on your journals and topic searches


Start Free Trial

14-day Free Trial

Best Deal — 39% off

Annual Plan

  • All the features of the Professional Plan, but for 39% off!
  • Billed annually
  • No expiration
  • For the normal price of 10 articles elsewhere, you get one full year of unlimited access to articles.



billed annually
Start Free Trial

14-day Free Trial