Fish belongs to vertebrate group of organisms living in water bodies, either fresh or marine water. ...

1. Different Types of Fish
Fish belongs to vertebrate group of organisms living in water bodies, either fresh or marine water.
As of date, more than 25,000 fish species are identified and scientists are of the opinion that there
are 15,000 more species, which are yet to be identified. The characteristic features of fish are
breathing through gills, and presence of paired and unpaired fins that help them in efficient
swimming. Besides fins, the body of fish is covered with some sort of protective scales.
Most of the fish species are cold-blooded (or ectothermic) and depend on their surrounding
environment to maintain their body temperature. Irrespective of the water chemistry, nearly all
water bodies are inhabited by fish. For example, you can find various types of fish in the ocean at
such a depth where there is very less or no light penetration. Likewise, several fish species are
found dwelling in the streams of high mountains. As far as importance of fish is concerned, they are
eaten as food and also, reared as pets in fish tanks.
Fish is an important source of food for humans. Enriched with healthy proteins, they are a delicacy
for people who eat animal based foods (non-vegetarians). And for aquarists, fish are wonderful pets
kept in decorative aquariums. Great Selection of River deep sea fishing tackle tackle Free UK
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examples are Indeed, rearing them is a relaxing hobby, which you get to enjoy watching colorful fish
swimming, playing, and feeding. Since the demand of fish is very high, fish farming and fishing are
sources of income for several people. Mentioned below are lists of edible fish and aquarium fish
types.
Types of Fish to Eat
Both freshwater and marine fish are consumed as human food since time immemorial. In the market,
they are sold fresh, dried, canned, or pickled. Research studies have shown that fish-derived
proteins and nutrients are healthier than those of poultry and meat. What's more, many saltwater
fish species contain a high percentage of omega-3 essential fatty acids, which help in treating
cardiovascular diseases. Commonly eaten fish are listed below.
Anchovy
Abalone
African butter fish
Bass
Barramundi
Basa

2. Black drum
Bluegill sunfish
Bream
Brill
Carp
Catfish
Clam
Coley
Cod fish
Crab
Croaker
Crayfish
Crawfish
Cuttlefish
Dab fish
Dogfish
Eel
Flounder
Grouper
Gurnard
Haddock
Hake
Halibut
Herring
Hoki
Huss

3. Jacksmelt
Ling
Lobster
Mackerel
Mahi mahi
Milkfish
Monkfish
Mullet
Opakapaka
Orange roughy
Oyster
Perch
Pike
Pollock
Pompano
Redfish
Salmon
Sardines
Scallop
Sheepshead
Shrimp
Skate
Sole
Swordfish
Tilapia
Tripletail

4. Trout
Tuna
Turbot
Wahoo
Weakfish
Whitefish
White grunt
Fish products, either canned or pickled, may contain traces of mercury and harmful chemicals.
Hence, while purchasing them for consumption purpose, make sure you select those of quality
brands. Last but not the least, some edible fish types (e.g. shellfish, sushi) increase the risk of food
poisoning, if proper cooking is not done. Thus, correct preparation and cooking of fish is a must to
avoid the risk of food poisoning.
Types of Fish for Pets
Depending on whether you want to keep freshwater fish or marine fish, you are required to
construct an appropriate aquarium. Marine fish are more varied in color, shape, and size than the
freshwater types. But, they need special care and maintenance. Hence, a freshwater aquarium is an
ideal choice for a novice aquarist. In the United States, the most commonly kept aquarium fish
comprises tropical fish. The list of popular aquarium fish types includes the following.
Anemone fish
Angelfish
African butterfly fish
Arowana
Banded coral shrimp

5. Barb
Betta fish
Biota
Bala shark
Bat fish
Black knife fish
Black-tailed dascyllus
Blennies
Butterfly loach
Bumblebee goby
Catfish
Cypriniformes
Cherubfish
Clownfish
Comet
Copperband butterfly
Cory
Cichlid
Crab
Damsel
Danio
Discus
Elephant nose
Fantail fish
Goldfish
Gourami

6. Guppies
Knife fish
Labyrinth fish
Lionfish
Loach
Molly
Mono
Needle nose
Oscar fish
Pacu
Platy
Scat
Seahorse
Shark
Shubunkin
Silver dollar
Spotted puffer fish
Squirrel fish
Swordtail
Tetra fish
Tiger Barb
Upside down cat
Yellowhead jawfish
Yellow tang
Yellowtail wrasse
In the present scenario, there are different types of fish that are listed in the endangered and near

7. extinction categories. No doubt, some species are already extinct knowingly or unknowingly. But, it
is never too late to conserve the extant fish. It is high time that we should stop overfishing, polluting
water bodies, and destroying habitat to save this aquatic vertebrate animal. These simple
conservatory approaches will surely help preserve fish and other inhabitants of the aquatic
ecosystem.