Overview 1. Yellow perch : great species for Great Lakes aquaculture - - PDF document

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Overview 1. Yellow perch : great species for Great Lakes aquaculture - - PDF document

Dec 29, 2023 264 likes •400 views

5/22/2018 Solving Key Biological Problems Limiting the Expansion of the Yellow Perch Aquaculture Industry Terence P. Barry Aquaculture Research Laboratory Department of Animal Sciences Overview 1. Yellow perch : great species for Great Lakes

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Solving Key Biological Problems Limiting the Expansion of the Yellow Perch Aquaculture Industry

Terence P. Barry

Aquaculture Research Laboratory Department of Animal Sciences

  • 1. Yellow perch: great species for Great Lakes aquaculture
  • 2. Key biological problems with yellow perch aquaculture
  • larval fish production
  • slow growth
  • 3. Innovations to help solve these problems

larval fish production

  • polyculture system with marine rotifers
  • lasers

slow growth

  • genetic manipulation using CRISPR-Cas9
  • growth-promoting pheromone

Overview

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Aquaculture

Human Population Growth World Fish Production

Resource Efficient Production

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Climate Friendly Production

Market for Fish in the Great Lakes Region

65 million people 15 lbs fish consumed/person/yr market size = 975 million lbs

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Yellow Perch is an Excellent Aquaculture Species

  • Large market & high prices
  • Excellent biological attributes

Yellow Perch Market

  • Market size: ~50 million lbs/yr
  • US supply from wild catch: ~15 million lbs/yr
  • Supply from imports: ~2 million lbs/yr
  • Aquaculture potential: 33 million lbs/yr
  • Current aquaculture production: 0.2 million lbs/yr
  • Wholesale value of yellow perch in the round: ~$3/lb
  • Retail value of yellow perch fillets: ~$15/lb

33 million x $15 x (0.45*) = $223 million

*fillet yield

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Favorable Biological Attributes

  • Readily accepts formulated diets
  • Lower on the food chain
  • Relatively disease resistant
  • Stress tolerant
  • Large number of offspring
  • Tolerant of high densities
  • Tolerant of poor water quality
  • Wide temperature range
  • Good flesh yield
  • Meat has excellent freezing and storage qualities

Production Methods

RAS Ponds

Cost of production: ~$2.60/lb Cost of production: ~$2.10/lb

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Key Problems

Larval yellow perch are small and difficult to rear

  • Early stages require live feeds
  • Poor overall survival

Slow growth to market size

  • It takes 2-3 years to grow a fish to market size in ponds and over 1 year in

RAS under optimal environmental conditions

Larval Fish Production

Pond Production

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Larval Fish Production

Induced spawning Live feeds Dry diets

Intensive Culture Indoors

Polyculture with Marine Rotifers

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Lasers to Stimulate Feeding on Dry Diets Problem: Slow growth

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Endocrine Growth Axis in Vertebrates

Genetic Manipulation using CRISPR-Cas9

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Growth-Promoting Pheromone

Accidental discovery

Growth-Promoting Pheromone

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Growth-Promoting Pheromone

Experimental Design

Growth-promoting pheromone

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Implications More Information

  • Dr. Terence P. Barry

Aquaculture Research Laboratory 660 N Park St. Madison, WI 53706 uwaquaculture.com