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Fish Dissection

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Learn the key external features of a trout and trout dissection. Practise assessing macroscopic keys to assess the appearance of the fins to indicate the animal's health, and explore the techniques and steps involved in dissection.

Learning Outcomes

  • Identify the key external features
  • Learn how the fins and liver can be used to assess fish health
  • Watch an animation of a fish dissection, answering questions about each of the stages
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Using Instruments and Equipment

  • How to make the initial incisions to open up the peritoneal cavity
  • How to remove the spleen, gonads, digestive tract, liver and gallbladder
  • How to remove the heart, swim bladder, part of the kidney and gills
  • How to separate the head, remove the top of the skull and dissect out the brain

Obtaining and Recording Data

  • How to use a macroscopic key to examine and record the condition of the fins
  • How to determine the hepatosomatic index

Concepts Principles and Theories

  • What external features and fins can be identified on a fish
  • What is the role of the swim bladder and gills
  • How to use the terms dorsal, caudal, ventral and cranial to describe the relative positions of organs

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Prof. Mike Davies-Coleman
University of the Western Cape

"We’ve been bringing the labs to our students online, allowing them to immerse themselves in a user-friendly interactive space, learn the relevant skills and feed that back into their future experiments. As a result of using LabSims to enhance our teaching practice, student grades increased."



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