Cusk-Eels and Relatives: Ophidiiformes - Physical Characteristics, Habitat, Behavior And Reproduction, Pearlfish (carapus Bermudensis): Species Account - GEOGRAPHIC RANGE, DIET, THEIR RELATIVES CUSK-EELS AND PEOPLE, CONSERVATION STATUS
world bottom
Cusk-eels and their relatives live all over the world.
Most cusk-eels and their relatives look for bottom-dwelling animals during evening hours. They eat invertebrates and small bottom fishes.
Cusk-eels are large; their meat is tasty, and they are fished commercially.
The World Conservation Union (IUCN) lists seven species of cusk-eels and their relatives as Vulnerable, or facing high risk of extinction in the wild.
Additional Topics
Most cusk-eels and their relatives are long and thin. The dorsal (DOOR-suhl) and anal (AY-nuhl) fins are very long, reaching the tail fin in some species. The dorsal fin is the fin along the midline of the back. The anal fin is the fin along the midline of the belly. The tail fin of these fishes is small, sometimes just a bony point. Cusk-eels and their relatives are about 1½ inches (4 cent…
Many cusk-eels and their relatives produce sound with their swim bladder, forward vertebrae (ver-teh-BREE), and the ligaments and muscles attached to those vertebrae. The swim bladder is an internal sac that fishes use to control their position in the water. Vertebrae are the bones that make up the spinal column. In some cuskeels and their relatives, the swim bladder is hard and serves as an echo …
Physical characteristics: Pearlfish are long, slender, and eel-like. The skin is cloudy, almost clear, with silvery bands along the sides and black along the back. The cheeks are silver, and there are blotches of color at the bases of the dorsal and anal fins and on the head. The dorsal and anal fins extend almost the length of the body. There are
Pearlfish live in the bodies of sea cucumbers …
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