I need a topic to write about for my fisheries class. Just looking for a topic to write about. A friend of mine in the class wrote about the cancer fighting properties of shark cartilage for example.
Tuna is one fish that can generate internal body heat to elevate its body temperature. You may write about the advantages and costs of endothermy in tuna, and possibly how tuna achieve endothermy when most fish are ectotherms.
a) Discuss how some aquatic animals can transition between fresh and salt water (some eels, salmon, bull sharks)
b) Another one is that some fish are technically considered warm blooded (sharks, tuna, most apex predatory animals). this gives them an advantage when the hunt. Their prey are dependent on their surrounding temp. If its too cold they are slower while the warm blooded ones are faster
c) Some animals, particularly intertidal organisms like urchins, snails, anemones) can tolerate extreme fluctuations in temperature, salinty, ph, oxygen and even survive large amounts of time out of the water.