Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.

2011 plan stock health 2. recap on pests, predators and diseases

530 views

Published on

Published in: Technology, Business
  • Be the first to comment

  • Be the first to like this

2011 plan stock health 2. recap on pests, predators and diseases

  1. 1. SFIAQUA505B Plan stock health management Recap: Fish Health ManagementAugust 10 SFIAQUA505B Plan stock health management - Introduction 1
  2. 2. Stock health management • A wide variety of parasites and pathogens can and do infect fish • Most disease agents are naturally present in low numbers • NOT usually a problem… but…August 10 SFIAQUA505B Plan stock health management - Introduction 2
  3. 3. Stock health management • Disease rarely results from simple contact between the fish and a pathogen… • Example 1: • 1995 & ‘98 pilchard kill:August 10 SFIAQUA505B Plan stock health management - Introduction 3 SARDI
  4. 4. Stock health management • Disease rarely results from simple contact between the fish and a pathogen… • Example 2: • 2006 Abalone Viral Ganglioneuritis:August 10 SFIAQUA505B Plan stock health management - Introduction 4 VADA
  5. 5. Stock health management • Disease rarely results from simple contact between the fish and a pathogen… • Environmental problems, such as poor water quality, or other stressors often contribute to the outbreak of diseaseAugust 10 SFIAQUA505B Plan stock health management - Introduction 5
  6. 6. Stock health management • Environmental problems, such as poor water quality, or other stressors often contribute to the outbreak of diseaseAugust 10 SFIAQUA505B Plan stock health management - Introduction 6
  7. 7. Stock health management • Case Study 1 • Chiles salmonid farming industry, second only to NorwayAugust 10 SFIAQUA505B Plan stock health management - Introduction 7 http://www.thefishsite.com/articles/427/chile-salmon-and-trout-report-april-2008
  8. 8. Infectious Salmon Anaemia (ISA) 2007http://en.mercopress.com/2009/10/27/chilean-salmon-industry-expects-worst-production-ever-in-2010 SFIAQUA505B Plan stock healthAugust 10 8 management - Introduction
  9. 9. Stock health management • Case Study 1 • Chiles salmonid farming industry, second only to Norway • 2008 -> 750,000 T • 2010 -> half that • Infectious Salmon Anaemia (ISA) Caligus (sea lice) Plan stock health management - IntroductionAugust 10 SFIAQUA505B 9
  10. 10. Abandoned farms http://www.ourrivers.ca/video-library-mainmenu-29/salmon-farming-chile SFIAQUA505B Plan stock healthAugust 10 10 management - Introduction
  11. 11. Abandoned boats and equipment http://www.ourrivers.ca/video-library-mainmenu-29/salmon-farming-chile SFIAQUA505B Plan stock healthAugust 10 11 management - Introduction
  12. 12. Abandoned workers and jobs http://www.ourrivers.ca/video-library-mainmenu-29/salmon-farming-chile SFIAQUA505B Plan stock healthAugust 10 12 management - Introduction
  13. 13. Chile salmonid farming industry 1990 – 2008 RIP • Case Study 1 • Infectious Salmon Anaemia (ISA) • Unsustainable growth • Overcrowding • Poor sanitation practices • Reliance on antibiotics & drugs • Catastrophic losses SFIAQUA505B Plan stock healthAugust 10 13 management - Introductionhttp://en.mercopress.com/2009/10/27/chilean-salmon-industry-expects-worst-production-ever-in-2010
  14. 14. Stock health management Types of Fish Diseases • There are two broad categories of disease that affect fish, • Infectious and • Non-infectious diseases.August 10 SFIAQUA505B Plan stock health management - Introduction 14
  15. 15. Stock health management Types of Fish Diseases • There are two broad categories of disease that affect fish, • Infectious and • Non-infectious diseases.August 10 SFIAQUA505B Plan stock health management - Introduction 15
  16. 16. Stock health management Infectious Fish Diseases broadly categorized as: • parasitic • bacterial • viral • fungal diseasesAugust 10 SFIAQUA505B Plan stock health management - Introduction 16
  17. 17. Stock health management NON-Infectious Fish Diseases broadly categorized as: • Environmental • Nutritional • GeneticAugust 10 SFIAQUA505B Plan stock health management - Introduction 17
  18. 18. Stock health management SFIAQUA505B Plan stock healthAugust 10 18 management - Introduction
  19. 19. Assessment for this Unit *• Case study: – A stock health issue affecting a culture species of your choice (local?) – Prepare a report covering the • Disease • Species • Treatment options • Issues (regulatory etc) • Other * Assessment matrix will be posted on Moodle. As will a Report Template & More detail soon SFIAQUA505B Plan stock healthAugust 10 19 management - Introduction
  20. 20. Assessment for this Unit (cont.)• Case study: • Tuna • Oysters Choose one: • Marine fin-fish Choose a sector that • Abalone interests you, is • Salmonids relevant, preferably one • RAS you can visit… • Hatchery • Other? SFIAQUA505B Plan stock healthAugust 10 20 management - Introduction
  21. 21. SFIAQUA505B Plan stock healthAugust 10 21 management - Introduction

×