A catfish has a spine so is a vertebrate.
yes, cat fish is a vertibrate because it has a spine and bones projecting from its spine.
No, catfish aren't arthropods, they have a backbone and are thus in a different phylum, Chordata. Arthropods are characterized by having an exoskeleton; bones for an internal skeleton would indicate a non-arthropod.
Very carefully! Seriously, I remember seeing people wearing gloves to hold the catfish, while another person removes the hook. How your deal with hook removal depends on the size of the of the catfish caught. For small to moderate sized catfish put the catfish on the ground (or a non-slide surface on the boats). There are four things to be careful of when dealing with a catfish. The two pectoral spines (the front two fins have spines), the dorsal spine (the fin on top has a spine) and the hook. You can hold the catfish by the belly with the thumb and the forefinger behind each of the pectoral spines. Holding it by the belly just means you have to worry less about the dorsal spine. You can hold it the same way from the top, there is plenty of room for you hand in front of the dorsal spine. I would hold the catfish with my non-dominant hand (left hand if you are right handed) so you can use a set of pliers to remove the your dominant had (right hand if you are right handed). The moth of a catfish is fleshy and hooks tend to get set very well. If the hook is set deeply or difficult to remove you may have to cut your line and release the fish with the hook. Catfish are strong but small to moderate catfish are easy to control with a firm grip. Large catfish are another kettle of fish and may require the assistance of another person. Rubberized gloves can be useful in controlling the catfish. A hemostat and needle-nose pliers are useful for the hook removal. ?You may also want to carry bolt cutters.
catfish use their whiskers to feel and taste in the mud and the water.
a starfish does not have a spine.
no if you are trying to catch catfish use clams. worms might work and big catfish will bite anchovies
you can use bluegill or you can go to a store and buy catfish bait
Any person that usually fishes for Catfish will say ''Soap is an excellent bait for Catfish''. And anyway, they use Soap a lot in Africa and they catch plenty of Catfish with it.
They use their poisonous fins
An Adaptation of catfish is their whiskers that they use to feel movement. Some catfish have pectoral fins adapted to walking out of water.
They use their spine.