HOME >> BIOLOGY >> NEWS
Alaska Sea Grant To Convene Ecosystem Considerations In Fisheries Management Conference

The goal of this symposium is to gather worldwide expertise and discuss how to incorporate ecosystem considerations into practical fishery management advice, and to recommend a process for advancing fishery management beyond the single species model.

In the last 10 years, there has been a growing perception that it is not effective to base fisheries management policies solely on single-species considerations. Large decadal shifts in species composition, abundance, and productivity are common, and are not predictable from single-species models. Climate regime shifts and human activities (e.g., overfishing, pollution, habitat degradation) are implicated in these changes.

North American examples include (1) Georges Bank, where the bottomfish community, once dominated by commercially valuable species such as cod and haddock, shifted to lower-valued species such as skates and dogfish; and (2) Gulf of Alaska and Bering Sea, where declines of crabs and shrimps have given rise to increasing pollock and flatfish. Severe economic hardships are associated with such declines in commercial fisheries.

Beyond consumer preferences, society places high values on marine ecosystem components, such as marine mammals, seabirds, and turtles. Threatened or endangered species warrant special consideration. Population declines often lead to after-the-fact adjustments to fishing regulations without a good understanding of cause and effect. Is it therefore desirable to incorporate ecosystem considerations into fishery management advice?

It may be argued that objectives for optimal yields are best met by applying harvest rate specifications, while no useful objectives exist for incorporating ecosystem considerations in fishery management. It may also be argued that objectives for simultaneous optimal yields from all fisheries are simply impossible, and that fishery management objectives need to be restated with a more holistic view of ecosystem processes.

Although well-
'"/>

Contact: Brenda Baxter
fnbrb@uaf.edu
907-474-6701
University of Alaska Fairbanks/NOAA Sea Grant Program
8-Aug-1998


Page: 1 2

Related biology news :

1. Alaska scientists find Arctic tundra yields surprising carbon loss
2. UAF scientists discover new marine habitat in Alaska
3. Climate change could doom Alaskas tundra
4. Chronic respiratory symptoms prevalent among Alaska natives
5. Spruce bark beetle outbreaks examined at Alaska Symposium
6. Alaska oil and gas exploration good and bad for area life
7. Alaskan waters growing hospitable to sharks while seals and sea lions decline
8. NSF-funded researchers track Alaska seal migration for the first time
9. Betting on climate change: Alaskan gambling contest yields treasure trove of scientific data
10. Warmer periods in Alaskan area not confined to modern times
11. From July 21-Aug. 20, Smith College and collaborators to retrace historic Harriman Expedition to Alaska

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:7/1/2020)... ... July 01, 2020 , ... ... had completed the purchase of Teva-Takeda Pharmaceuticals’ packaging facility in Minakuchi, located in ... Japanese clinical supply facility located in Kakegawa, the new 60,000-square-foot facility will provide ...
(Date:6/25/2020)... ... June 24, 2020 , ... ... and software-driven clinical data services that accelerate drug development, is collaborating with Karyopharm ... XPO1 inhibitor, in hospitalized patients with severe COVID-19. This is the first study ...
(Date:6/23/2020)... ... June 23, 2020 , ... ... pleased to announce the next event in a series of TOPIQ webinars, which ... TOPIQ series of webinars was developed in response to social distancing measures that ...
Breaking Biology News(10 mins):
(Date:7/31/2020)... ... 2020 , ... The SDX® Respiratory Gating System , ... reached its 20th anniversary of worldwide use. Introduced in the US over the ... University of Pennsylvania, University of Michigan, University of Maryland, University of California San ...
(Date:7/18/2020)... TORONTO (PRWEB) , ... July 16, 2020 , ... After ... begins. The completion of a great surgery is only the beginning of a successful ... the research community. , Join Brad Gien, Global Head of Surgery from Envigo ...
(Date:7/18/2020)... ... 2020 , ... dicentra , a leading Contract Research ... is pleased to announce that Charles Galea has joined its clinical trials division ... an accomplished and results-driven sales executive with over 10 years of expertise in ...
(Date:7/10/2020)... HONG KONG (PRWEB) , ... July 09, 2020 ... ... chemical compound called 1-phenyl-2-thiourea (PTU) is commonly used to suppress pigment formation in ... years, the PolyU research team led by Dr MA has been using the ...
Breaking Biology Technology:
Cached News: