March 14, Homework.docx - Jacob Nilson Tuesday March 14...

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Jacob Nilson Tuesday March, 14 Homework Ichthyology The group Otocephela includes fishes such as sardines, anchovies, and herrings. The group Ostariophysi includes 5 orders of fish: the milkfishes, the American knifefishes, the catfishes, the characins, and the carps and minnows. The sardines and anchovies are distinguished from other groups of fished by sensory canals that join the ear to the swim bladder to amplify sound. Herrings are very easily recognized by their sleek appearance. Light countershading and rough keeled belly. They have overlapping cycloid scales and no spines, which helps with the sleek appearance description. Anchovies can be distinguished from herrings by their relatively large mouth. These fish live in the epipelagic zone of the ocean or in lakes. Some marine species release buoyant eggs into open water but the
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  • Spring '14
  • ChristopherHoagstrom

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