Thursday, 21 February 2013

Oreochromis mossambica

Local Name: Tilapia 
English : African mouthbrooder ,  Java tilapia ,  Largemouth kurper ,  Mozambique mouthbrooder ,  Tilapia ,  Kurper bream .

Habitat and Biology :Freshwater and brackish water inhabitants. Lives in warm, weedy pools of sluggish stream, canals, and ponds. Is mainly diurnal.Occurs at temperatures ranging from 8º to 42º C.  
The female usually incubates the spawn; the male should be removed as soon after spawning as possible.  May form schools.Omnivorous, feeds on almost anything from algae to insects but also crustaceans, and fishes.Can be reared under hypersaline conditions.
Spawn all year around when kept in warm water (above 20º C)

Fig. Oreochromis mossambica
Diagnostic features:
Body compressed; caudal peduncle longer than deep.  Scales cycloid.  A knob-like protuberance present behind upper jaw on dorsal surface of snout. Upper jaw length shows sexual dimorphism, and mouth of male larger than that of female.  First gill arch with 20 to 22 gillrakers.  Lateral line interrupted.  Spinous and soft ray parts of dorsal fin continuous. Dorsal fin with 15 to 18 spines and 10 to 13 soft rays. Anal fin with 3 spines and 9-10 rays. Caudal fin truncated.  Colour in spawning season, pectoral, dorsal and caudal fins becoming reddish; colour male shows much brighter orange tail than femal.

Size:  36cm

Wednesday, 20 February 2013

Tenualosa ilisha

Ilish (Bengaliইলিশ Ilish Oriyaଇଲିଶି Ilishii Sindhī: پلو مڇي Pallu Machhi Teluguపులస Pulasa or Polasa), also spelled Elish, is a popular fish to eat among the people of the Indian sub-continent


 A tropical fish, it is the most popular fish with Bengalis and Oriyas, the national fish of Bangladesh and extremely popular in parts of India such as West BengalOdishaTripuraAssam and Southern Gujarat. Ilish also can be found in India's Assamese-, Bengali-, Oriya- and Telugu-speaking regions and in Pakistan's Sindh province. In Gujarat it is known as either Modenn or Palva.


Each year a large number of fish are caught in the Padma-Meghna-Jamuna delta, which flows into the Bay of Bengal

As Food Ilish is an oily fish rich in essential fatty acids(omega 3 fatty acids)

                                                                                                Classification:
Fig. Tenualosa ilisha
Kingdom:Animalia
Phylum:Chordata
Class:Actinopterygii
Order:Clupeiformes
Family:Clupeidae
Subfamily:Alosinae
Genus:Tenualosa
Species:T. ilisha
Local name: ilish
Scientific name: Tenualosa ilisha
Location: Padma river, Meghna river, Jamuna river and India

Botia dario


The Bengal Loach, or Queen Loach (Botia dario) is a species of loach fish found in the hill streams of Bangladesh.
These fish are threatened by pesticide used in the cultivation of rice. Since 1997, the Bangladesh government has enforced strict penalties against polluters, with specific rules about the pollution of streams and waterways, so at least some preservation work is afoot.
Fig. Botia dario

Scientific name: Botia dario
Rank: Species
B. dario can be found in the creeks and streams of the northern and eastern regions of the country (bordering India and Myanmar, respectively), and is also known in India. The fish most likely populates the streams that supply the Bengal section of the Ganges river. B. dario is also reported in Bhutan, but only in the Gaylegphug river, which eventually drains into the far north of Bangladesh. In the aquarium: Botia Dario are good fish to have in tropical aquariums, quickly taking care of pest snail populations and less shy than Botia striata. They get as long as 6" and should be kept in groups of 4 or more. They are omnivores, and thus should be fed sinking pellets as well as algae wafers. They also enjoy fresh vegetables, such as cucumberzucchini, and frozen foods like bloodworms and brine shrimp. Also, make sure to provide plenty of caves for hiding in.


Tuesday, 19 February 2013

Fish

Local Name: shol
Scientific Name : Channa striatus
Fig.Channa striatus

Location: Buriganga river
Fishing Net: Cast net
Mesh Size: 1.5cm
Maximum Length: 19cm
Captuer by: Muzammel Hossain