Biocomplexity and fisheries sustainability Ray Hilborn Tom Quinn Daniel Schindler School of Aquatic and Fishery Sciences University of Washington.

Slides:



Advertisements
Similar presentations
Spatial scales of homing and the efficacy of hatchery supplementation of wild populations Northwest Fisheries Science Center National Marine Fisheries.
Advertisements

Frank Leonetti, Snohomish County
Fisheries and Climate Change Dr. John T. Everett National Marine Fisheries Service National Oceanic and Atmospheric Administration United States Department.
Overview of Alaska Ecosystem Indicators Relative to EAM/EAF Objectives
Planning for fish bearing waters between Glen Canyon Dam and Lake Mead.
Differential Impacts of Climate Change on Spawning Populations of Atlantic cod in U.S. Waters Lisa Kerr, Steve Cadrin (UMass School for Marine Science.
Issues in fisheries sustainability
Stephanie Carlson 1 and William Satterthwaite 2 1 Department of Environmental Science, Policy & Management, UC Berkeley 2 NOAA-Fisheries, Santa Cruz Managing.
A Study and model Of Sustainability. In the beginning Alaska is one of the cleanest, pristine environments in the world with a wealth of wildlife and.
Population diversity and the portfolio effect in fisheries Daniel Schindler Keeler Professor of Aquatic and Fishery Sciences University of Washington Seattle,
El Niño/Southern Oscillation Major climatic perturbation on the planet Coupled atmosphere ocean process Key is the western tropical Pacific – Ascending.
Fishery selection on Alaskan sockeye salmon and potential changes in size at maturity Neala Kendall Tom Quinn School of Aquatic and Fishery Sciences University.
Importance of Habitat in salmon declines and recovery Ray Hilborn School of Aquatic and Fishery Sciences UW.
Marine Fisheries Terms to Know Fishery – Refers to aspects of harvesting and managing aquatic organisms. Can refer specifically to a species being harvested,
Fishing: An Industry at the Crossroads. Canadian Fisheries Canada’s fishing industry had a bright future up to the 1980’s The fishing industry looked.
A Climate Angle on Uncertainty in Salmon Recovery Scenarios Nate Mantua Ph D Joint Institute for the Study of the Atmosphere and Oceans University of.
Missing collaborator. Conceptual Overview SHIRAZ Landscape Processes Land Use Freshwater Habitat Biological Response Land use & landscape processes affect.
What lies beneath the surface: Exploring our fisheries in depth
Potential Impacts of North Aleutian Basin Oil & Gas Development on Commercial Fisheries: What Do We Know? What Research is Needed? By Gunnar Knapp Professor.
Fisheries and Fishing Techniques. What are fisheries? A fishing ground for commercial fishing.
Geography of Canada Fishing.
Computer modelling ecosystem processes and change Lesson 8 Presentation 1.
Megan Stachura and Nathan Mantua University of Washington School of Aquatic and Fishery Sciences September 8, 2012.
Watershed Assessment and River Restoration Strategies
Building Strong! 1 US Army Corps of Engineers Regulatory Program Kimberly McLaughlin Program Manager Headquarters Operations and Regulatory Community of.
Overfishing and Extinction: Gone Fishing, Fish Gone (1) Fishery: concentration of a particular wild aquatic species suitable for commercial harvesting.
Fishery Biology. Fisheries Management n Provide people with a sustained, high, and ever-increasing benefit from their use of aquatic resources n Problems.
History of Marine Animal Populations. HMAP Executive Committee Chair: Poul Holm Trinity Long Room Hub, Trinity College Dublin Andrew A. Rosenberg Institute.
Canada’s Marine Environments. The Arctic Ocean Coldest ocean area ~ km of coastline Seasonally covered in ice Key Polynyas in the region These.
Life History of Western Washington Winter Steelhead, a 30 Year Perspective Hal Michael Washington Department of Fish and Wildlife
Modeling physical environmental impacts on survival: the SHIRAZ model Ecosystem based management FISH 507.
Fishing = Harvesting = Predation Predator-Prey Interaction +- with Humans as Predator Very high-tech hunting- gathering –Fast boats –Sonar, fish finders.
Comparative selectivity on length at maturity among Alaskan sockeye salmon fisheries Neala Kendall Tom Quinn School of Aquatic and Fishery Sciences University.
Fisheries in the Seas Fish life cycles: Egg/sperm pelagic larvaejuvenile (first non-feeding – critical period – then feeding) (first non-feeding – critical.
Framework for adaptation control information system in the Rio de la Plata: the case of coastal fisheries Walter Norbis – AIACC LA 32.
Module 2 Biocomplexity of the North Dactylica arctica Algae under Arctic sea ice Xanthoria elegens Poripidia flavocaerulescens.
Summary of Atlantic Swordfish Species Working Group Discussion (see also SCI -021)
Ecosystem Based Modeling for Sustainable Regional Development of the Marine and Estuarine Resources in Coastal NSW Philip Gibbs Karen Astles.
Wetland Wetland San Francisco Bay & Delta San Francisco Bay & Delta Wetland Wetland Steven Ortiz Per.1.
Effects of Marine-Derived Nutrients on Productivity in Sockeye Systems.
Oceans 11. What is “fishing”? Exploitation of marine organisms for sustenance, profit, or fun. Examples: –Fish- cod, halibut, salmon, redfish, stripped.
Lloyd C. Mohr Upper Great Lakes Management Unit Owen Sound, ON and Mark P. Ebener Chippewa Ottawa Resource Authority Sault Ste. Marie, MI The Fisheries.
Flow, Fish and Fishing Dave Siegel, Chris Costello, Steve Gaines, Bruce Kendall, Satoshi Mitarai & Bob Warner [UCSB] Ray Hilborn [UW] Steve Polasky [UMn]
Are the objectives for EAF-SW achievable? Steve Mackinson, Gurpreet Pada and Rob Forster.
Chapter 3: The Big Picture: Systems of Change. Systems A system is a set of components or parts that function together to act as a whole. –E.g. Body,
Overfishing Fisheries. Fishing Catching marine organisms.
Why do we fish? Survival- many costal communities, particularly in developing countries, fish as a primary food source. Recreation- fishing for fun.
1 Assessing Vulnerability of Living Marine Resources in a Changing Climate Roger Griffis Climate Change Coordinator, NOAA Fisheries Service.
Georges Bank East Scotian Shelf Grand Banks.
Academic contributions to natural resource management Ray Hilborn School of Aquatic and Fishery Sciences University of Washington.
Discussion of Ocean Salmon Sportfishing Regulations Fish and Game Commission Meeting February 5, 2014 Marci Yaremko 1.
1 Lisa Hutchinson-Scarbrough Division of Subsistence Alaska Department of Fish and Game Chignik Management Area Subsistence Salmon Fisheries Overview Chignik.
Salmon Maia Janz Geography 12 Mrs. Hayter. What are Salmon? Salmon are anadromous fish which means they breed and spawn in freshwater but spend most of.
Quiz 7. Harvesting strategies and tactics References Hilborn R, Stewart IJ, Branch TA & Jensen OP (2012) Defining trade-offs among conservation, profitability,
COLUMBIA RIVER SALMON CUMULATIVE IMPACTS EXAMPLE.
Population Growth CENV 110. Topics Basic Population Dynamics Human Population Dynamics Sustainable Harvesting of Wild Populations.
Daniel Schindler, Ph.D., University of Washington Fisheries Research Institute Salmon research in Western Alaska
Understanding sockeye salmon production in the Kvichak
Climate Change Impacts on Marine Ecosystems
IBFMPs Goals and Objectives
Fishing: An Industry in Crisis
Lecture 12: Population dynamics
Missing collaborator.
Over Fishing Oceans 11.
Fishing: An Industry in Crisis
The use of Data in Fisheries Management
Fishing at a Crossroads Text Answers
Fishing: An Industry in Crisis
OVERFISHING.
11-3 How Should We Manage and Sustain Marine Fisheries?
Presentation transcript:

Biocomplexity and fisheries sustainability Ray Hilborn Tom Quinn Daniel Schindler School of Aquatic and Fishery Sciences University of Washington

What is biocomplexity Biodiversity is the diversity of life forms including species diversity, and diversity of stocks, life histories and morphologies within a species Biocomplexity is the “complex chemical, biological and social interactions in our planet’s systems” (Colwell 98)

The Earth is a living, ever-changing planet. Its environment is defined by the interaction of many complex systems that are structured or influenced by living organisms, their components or biological processes. These systems are the source of our sustenance, well being and quality of life. Biocomplexity is the defining property of these systems, resulting in the `whole being greater than the sum of its parts'. The area of biocomplexity that will come to the forefront in coming years is that of interactions of living organisms with all facets of their external environment. In particular, research on interactions involving multiple levels of biological organization and/or multiple spatial (microns to thousands of kilometres) and temporal (nanoseconds to aeons) scales will be of great importance. (Colwell 2000)

Fisheries Sustainability: The Litany “Most of the world's major fisheries are depleted or rapidly deteriorating. Wherever they operate, commercial fishing fleets are exceeding the oceans' ecological limits.” Greenpeace

What is wrong with the litany? Most of the worlds fisheries are not collapsed and produce substantial yield In the US we are obtaining 85% of the maximum possible yield The authors of the Litany argue fisheries management has failed and we need to look for new solutions

We have the solutions in hand There are many successful fisheries We need to look to the successful examples and learn from them, not look for “new” solutions

Bristol Bay sockeye stand out as a success story in sustainable biological management A single management agency with clear biological objectives Good ocean conditions from

A key to this sustainability is management by escapement goal In escapement goal management the fishery is regulated to assure that a target number of fish “escape” the fishery and reach the spawning grounds, assuring the long term productivity of the stock

Biocomplexity of the stocks is also a key Diversity in life history –Spawning on beaches, in creeks, in rivers –Diversity of freshwater life 0, 1 and 2 years –Diversity of marine life, 1, 2, 3 and 4 years Diversity in morphology

Female Male Hansen Creek sockeye salmon

Bear Creek sockeye salmon

Beach spawning sockeye salmon

Diversity of Habitats and Geography Many different lake systems –different physical regimes Different times of smolt and adult migration Long term changes associated with Pacific Decadal Oscillation

Large rivers between lakes have stable flows, no bear predation Often high density spawning

Small streams often have very high density spawning: also high bear predation Beach spawning occurs where there is upwelling or wind driven currents

Importance of climate The Pacific Decadal Oscillation

Warm Phase Cool Phase

Lake Nerka, SW Alaska Historical sockeye population dynamics Year Salmon density (1000s/km 2 ) + fishery catch escapement Schindler and Leavitt (2001)

Different systems have been important at different times

Recruits per spawner

Changing perceptions In the 1940s 50s or 60s no one would have ever expected Egegik to be the most important system in Bristol Bay In the 1970s no one would have expected the Nushagak to be the most important system in the bay Many had never heard of the Alagnak! Not on many maps

Alagnak River Alagnak

Spatial scale hypotheses The role of biocomplexity and response to climate extends to all spatial scales –We know it occurs on Pacific wide scales Documented negative correlation between lower 48 and Alaskan salmon productivity –We see it at smaller scales At different spawning sites in a stream Even within sections of a stream

The human side of the story For all of the excitement over the biological success, the social and economic success has faded It was once possible to clear $50,000 in a 6 week season

The human biocomplexity The fishing fleet and processing industry is as diverse as the fish Diversity of fishing gears Diversity of strategies – mobile, stationary, resident non resident, high capital input, low capital input

The fishery 2000 drift gillnet boats and 1000 shore based “set net” gill nets Fishery from 25 June to 15 July Product is both canned and frozen Canned market UK and Europe, Frozen Japan

Photo Robert Kope

The race for fish Is widely recognized as the primary economic problem in worlds fisheries In the 1930’s 30 million salmon were caught in Bristol Bay by 2000 sail powered boats We don’t need 2000 high powered vessels State policy is to spread the wealth to as many as possible

The management system The Management System

The fish The fleet The managers The biocomplexity of Bristol Bay Price and Revenue Climate

The potential adaptation of the human system is restricted by regulation Regulations determine how many and what type of fishing takes place There is very limited ability to adapt We expect that “the struggle for existence” will by default take place within existing regulations We are modelling alternatives to the current regulatory structure including cooperative fishing programs as seen at Chignik

General Lessons Biocomplexity appears to be important in stabilizing total productivity over a range of spatial scales in both fish and human systems Systems that are productive in one epoch are much less productive in other epochs –The lesson is maintain the stock structure – what seems unimportant now may be very important later The regulatory structure imposed threatens the ability of the human system to adapt

Some other examples Ecosystems change The productivity of different species changes

52 The “worst” fisheries disaster of the last 20 years Collapse of the Northern Cod fishery in Newfoundland

Gulf of Alaska – Small set of structuring variables operating at different speeds - Whammo!

“If the biota, in the course of aeons, has built something we like but do not understand, then who but a fool would discard seemingly useless parts? To keep every cog and wheel is the first precaution of intelligent tinkering.” Aldo Leopold Round River Conclusions

Final Lessons Maintain flexible social institutions: fishing communities need to adapt This issue has not been on the legislative agenda The fisheries crisis is one of governance We know what to do: solutions are available

Acknowledgements The FRI pioneers who started and maintained 57 years of continuous data –Bud Burgner, Ole Matiesen, Don Rogers The staff of Alaska Department of Fish and Game who continue much of the original work and maintain many of the data bases: Lowell Fair, Jeff Regnart, Jim Browning, Brian Bue