Introduction to Fisheries Science and Management (ESS 445)
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Introduction to Fisheries Science and Management (ESS 445) Fall 2017 Thought for today: “Science is built with facts as a house is with stones, but a collection of facts is no more a science than a heap of stones is a house.” -Jules Henri Poincaré, mathematician, physicist, and philosopher (29 Apr 1854-1912)
Transcript of Introduction to Fisheries Science and Management (ESS 445)
Introduction to Fisheries
Science and Management
(ESS 445)
Fall 2017
Thought for today: “Science is built with facts as a house is with stones, but a collection
of facts is no more a science than a heap of stones is a house.” -Jules Henri Poincaré,
mathematician, physicist, and philosopher (29 Apr 1854-1912)
Objectives
Define “fishery” or “fisheries” and define the components
Distinguish between fisheries science and fisheries
management
ID the skills needed by fisheries professionals
Defend why we need science and management for
conservation and protection of natural resources
Includes
Recreational
Commercial
All aquatic life
Native fishes (non-game species)
3 Components of a Fishery
Fish (biota)
– Target species / population
– What kind?
Habitat
Human populations
ORGANISMS
Population Dynamics
Behavior
Life History
HABITATS
Water Quality
Habitat Quality
Ecological
Interactions
PEOPLE
Sociology
Economics
Politics
Social Justice
Components of a Fishery
Fig. 5.1
Organisms….
Historical focus
The Fish Community
Current paradigm
Human Dimensions
Angling, boating, swimming, food, water, aesthetics
Commercial
Habitats
Rivers
Habitats Organisms
Community
People
Fisheries Science vs. Fisheries
Management
Fisheries Science
– Research
– Obtaining basic knowledge
Fisheries Management
Applying knowledge
Produce sustainable benefits to people
Fisheries
Management vs. Science
Need
Action
Decision
Question
Project
Results and
Synthesis
Acid mine drainage pollution
Management Challenges...
...and solutions
http://news.sky.com/story/1317804/salmon-
cannon-fires-fish-over-dams-at-22mph
Essential Skills of
Fisheries Managers
KSAs?
Examples:
– Low catch rates
– Stream alteration
Why do we need fisheries
science and management?
We need fisheries science
and management
Conserve
Functional Ecosystems
Life support systems
Handout
Issues in Fisheries Management
Over Harvesting
Agriculture
Mining
Urbanization
Forestry
Transportation
Flood control
By-catch
Sedimentation
Acid precipitation
AMD
Eutrophication
Fish passage
Habitat degradation
and loss
Aquatic ecosystems reflect the action on land
In AppalachiaSedimentation
Acid precipitation
AMD
Eutrophication
Stream filling and alteration
Summary
Fisheries management is complex,
challenging, and rewarding
– Triad
– Each component complex
– Easy if we had to manage fish only
