Finfish

Fin Fish - Species

There are basicaly two type of fishes. Thay are Fin fish and Shellfish. Fin fish is a fish that is a bony fish, such as a salmon, sadain Sardinella longiceps or a cartilaginous fish, such as a shark and southern stingray (Hypanus americanus) especially in contrast to a shellfish or other aquatic animal. Any fish Other than flat fish is technically fin fish. Fish that do have fin, Fin is a thin component or appendage attached to a larger body or structure. There are dorsel fin, Ventral fin Anal fin, Lateral fin, Adipose fin,Caudal fin and Oral fin.

More Facts

In the sea the dorsel fin is on the top of the fish and it can be identified on the top of the fishy body. Fin rays is part of fin and it is projuctions form the dorsal fin it can bleed if touched. A line in the center of the fish is lateral line, Ventral fin It is below the fish and can only see if we take out the fish or in an Aquarium.

Fin fish aqiaculture has been suggested as a vector for intriducing non native and potentially invasive species. (Naylor, Williams, & Strong, 2001). Vivekanand Bharti,CMFRI Finfish can be defined as cold-blooded aquatic craniate vertebrate with fins for locomotion and gill for respiration. About 33,218 species of finfish has been identified in the world at present time. It may live in freshwater, brackish water and marine water. The skeleton of finfish is made up of either bone (called bony finfish) or cartilaginous (called cartilaginous finfish).

Extras

It can be devided into two parts part one is head and it consist of Snout. Lips, Mouth, Jaws, Teeth, Barbels, Norstril, Eyes, Opreculum and gills. in the part two Body includes fins, Lateral line ,Skin and Scales. There are four type of mouths they are Terminal mouth superior mouth, Inferior mouth and Protrusible mouth. There are six type of Caudal fins they are roun fin, forked fin, indented fin, square fin, lunate fin, pointed fin. Fish also have finlets to make the body more aquatic. Body shapes are Anguilliform, Taeniform, ovate, Depressiform.

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Karemeen

Etroplus suratensis Primarily found in brackish water but known to tolerate fresh or marine waters for short periods . Found in large rivers, reservoirs, lagoons and estuaries. Feed on filamentous algae, plant material and insects.

Life cycleAfter spawning, about 500 eggs are laid and attached to a submerged log, rock or sometimes roots and weeds, in still or slow flowing water. Parents guard and fan the eggs until hatching, usually about 4 days. The fry shoal around their parents during the first weeks of growth. Parents refrain from feeding from the time of spawning until the fry become independent.

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Channa striata

Adults inhabit ponds, streams and rivers, preferring stagnant and muddy water of plains . Found mainly in swamps, but also occurs in the lowland rivers. More common in relatively deep (1-2 m), still water. Very common in freshwater plains

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INDIGENOUS INDIANFISH'S

Catla catla

Catla is endemic to the riverine system in northern India, Indus plain and adjoining hills of Pakistan, Bangladesh, Nepal and Myanmar, and has been introduced later into almost all riverine systems, reservoirs and tanks all over India. Adults occur in rivers, lakes and culture ponds. Mature individuals breed in rivers. Surface and mid-water feeders, mainly omnivorous with juveniles feeding on aquatic and terrestrial insects, detritus and phytoplankton.

Labeo rohita

The Rohu (Labeo rohita) is a freshwater fish of the carp family Cyprinidae that is also commonly called the Ruee, Rui or Tapra. Adults inhabit rivers. Are diurnal species and usually solitary. They burrow occasionally. Feed on plants. Spawning season generally coincides with the southwest monsoon. Spawning occurs in flooded rivers. Fecundity varies from 226,000 to 2,794,000 depending upon the length and weight of the fish and weight of the ovary. Widely introduced outside its native range for stocking reservoirs and aquaculture. Utilized fresh.

Cirrhinus mrigala

This is mainly found in fresh water or Northern India, Punjab, West Bengal and Orissa. This carp very much with Labeo rohita except that it has wider mouth and thinner lips. Body is dark grey on the dorsal side while orange colored on the ventral side.

puntius melanostigma

Puntius mahecola has been constantly confused with P. melanostigma, P. filamentosus and P. amphibius. Its distribution range is not properly delineated making the taxon assessment currently imprecise, hence it is assigned to Data Deficient.