Caution!

Visiting this web site requires a newer version of Netscape Communicator.

Visit Microsoft's Web site to obtain the newest version of Internet Explorer, or visit Netscape's Web site to obtain the newest version of Netscape Communicator.

Visiting this web site without first upgrading your browser may result in unreliable behavior.













THE BASICS



Home


Contact Us


About Dick Allen


Links

CFN ITQ Columns



Time to Plan for ITQs


ITQs: Initial Allocation


ITQs & High-Grading


ITQs & Concentration


ITQs & Ownership

IFQ INFO



IFQ Fact Sheets


Halibut IFQ


Florida Lobster


Canadian Scallop


Great Lakes


Wreckfish


Surf Clam

KEY CONCEPTS



Recruit Overfishing


Growth Overfishing


Fishing Mortality


Fishery Bioeconomics


Conservation Payoff


Targets vs Thresholds

Stock Stewardship - Beyond IFQs



Introduction to Stock Stewardship Shares

Area 2 Lobster



Fishery Collapse Booklet

INFORMATION



The Lobster Fishery


Map of Mgt Areas


Glossary


Lobster Length-Weight


Mortality Rates


Annual Landings


Overfishing Defined


Catch & Effort

Management Tools



Lobster Business Models


LobSense

FisheryConsulting.com



FisheryConsulting.com

FisheryConservation.com



FisheryConservation.com


Sitemap




    Growth Overfishing





Growth Overfishing

Heavy fishing removes the larger animals and does not give young lobsters a chance to grow to their potential size. Most of the large lobsters in the inshore fishery were caught during the 1800s and early 1900s. Lower fishing pressure on the offshore lobster stocks allows more lobsters to grow to a larger size, but even there the size range is much reduced from the early days of the fishery. The largest lobster ever recorded was a 51 1/2 pound lobster caught in Maine in 1926.

Growth Overfishing

Growth overfishing is much more common than recruitment overfishing, but it does not receive the attention given to recruitment overfishing because it does not pose such a serious threat to the continued existence of the resource. But growth overfishing still reduces the potential yield from a fishery, and thus the economic and other benefits that could be obtained from the stock.

Growth overfishing occurs when animals are harvested at an average size that is smaller than the size that would produce the maximum yield per recruit. The total yield from the fishery is therefore less than it would be if the fishing mortality rate, or percent of the stock removed each year, were lower. In such a case, less fishing would produce higher landings. This is the essence of fishery conservation, and holds true even when the resource is abundant.















Sign In