Fish Anatomy

In many respects fish anatomy is different from humans and mammals. Surface dwelling fish have an upturned mouth a flattened back.

Fish Identification Guide Fish Anatomy Part I Aquaviews

Internal fish anatomy spine.

Fish anatomy. The primary structural framework upon which the fishs body is built. Slender torpedo shaped fish are better adapted to moving waters. Most fish have scales covered with a slimy mucus that helps protect them.

This involves inhaling water through its mouth. The control center of the fish where both automatic functions such as respiration. There are two different skeletal types.

The head or skull includes the. Best described as similar to our inner ear the fish uses this organ to sense movement proximity to objects and in some cases fish in dark waters find their food through this organ. Tall bodied laterally compressed species like discus and angelfish are adapted to life in slow moving waters.

Fish anatomy explained fins. Connects the brain to the rest of the body and relays sensory information from. They are either single fins along the centerline of the fish such as the dorsal back fins caudal tail fin and anal fin or paired fins which include the pectoral chest and pelvic hip fins.

Fish have several types of fins and they may have stiff rays in them to keep them upright. The lateral line of the fish is sensory organ of the fish anatomy. Bottom dwelling fish have flattened bellies and inferior mouths.

The x ray tetra pristella maxillaris has a visible backbone. Fish have gills for breathing. Fish such as catfish have another fleshy lobe behind the dorsal fin called an adipose fat fin that is not illustrated here.

Fig 1 14 Generalized Fish Anatomy