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Exploring Fish Physiology: Adaptations and Functions in Aquatic Environments

Discover the advantages of a lunate form caudal fin, color of swimbladder, forms of gill ventilation, marine fish urine production, osmotic terms meaning, catadromous vs. anadromous fish, fish ladder, stenohaline marine species adaptation, toothed whales, cetacean adaptations, and wholphin evidence.

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Exploring Fish Physiology: Adaptations and Functions in Aquatic Environments

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  1. Warm-Up 12/9 • What are some advantages of having a lunate form caudal fin? • What color was the swimbladder during the perch dissection? • What are the two forms of gill ventilation we discussed in class?

  2. Warm-Up 12/10 • Why do marine fish only produce a small amount of concentrated urine? • What internal organ is responsible for regulating the body’s water, salt and nitrogenous waste via selective elimination? • What do the terms hypoosmotic and hyperosmotic mean?

  3. Warm-Up 12/11 • What is the difference between a catadromous fish and an anadromous fish? • What is a fish ladder? • What would happen if you put a stenohaline marine species into a freshwater pond? Why?

  4. Warm-Up 12/12 • Name 2 toothed whales. • What are 2 adaptations of cetacean’s physiology that allow them to swim for extended periods without breathing. • Why does the existence of a wholphin provide strong evidence for classification of bottlenose dolphins as toothed whales?

  5. Warm-Up 12/13

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