Genetic characterization and gene banking is a step forward toward further confirmation of the species at the molecular level. On the basis of economic importance fishes were divided into three major groups viz. Fish production of Bangladesh from different aquatic resources in 2016–17 (FRSS, 2017). Economic importance: Used as food fish in Bangladesh. Alternatively, E2 enhances thyroidal status in the climbing perch (A. testudineus), dwarf snakehead (Channa gachua), and striped dwarf catfish (Mystus vittatus) (Singh, 1968; 1969; Chakraborti, Rakshit, & Bhattacharya, 1983; Chakraborti & Bhattacharya, 1984; Bandyopadhyay, Banerjee, & Bhattacharya, 1991). Conservational status: This species is endemic only to the upper Brahmaputra basin. Incidentally, these ichthyospecies, in addition to being from this region, also occur in many other parts of India, Pakistan, Bangladesh, Sri Lanka, and Malaya. After declining, the output again started to boom, and there remains an increased general trend during the period 2003–04 to 2016–17. Fishes having minimum body modifications and insignificant migratory habits: Pisodonophis, Gudusia, Notopterus, Chitala, Amblypharyngodon, Aspidoparia, Catla, Cirrhinus, Cyprinus, Danio, Esomus, Labeo, Puntius, Rasbora, Salmophasia, Mystus, Sperata, Ompok, Wallago, Rita, Clupisoma, Eutropiichthys, Silonia, Pangasius, Clarias, Heteropneustes, Chaca, Xenentodon, Aplocheilus, Monopterus, Chanda, Nandus, Sicamugil, Rhinomugil, Anabas, Trichogaster, Glossogobius, Macrognathus, Mastacembelus, and Tetraodon. In marked contrast to terrestrial animal livestock production systems, where farming is usually restricted to the production of a handful of different animal species (i.e., pigs, cattle, poultry, sheep) under a relatively narrow range of habitats and farming systems (i.e., grazing, mixed, and industrial farming systems), aquaculture is more akin to agriculture in the wide diversity of species cultivated and farming systems employed. Genera-wise, the breakup under this group includes, among others, Gudusia, Tenualosa, Pisodonophis, Chanda, Xenentodon, Aplocheilus, Monopterus, Sicamugil, Rhinomugil, and Glossogobius. Conservational status: This fish is a widely spread species occurring in the Ganga-Brahmaputra and Indus river basins. In live, dorsal surface of head and body, light gray with bluish and golden reflection; flank silvery and lacking lateral stripes; belly whitish; and presence of a small blackish triangular nuchal spot at dorsal-fin origin and another small semi-ocellate humeral spot above the pectoral fin. About 65% of Bangladesh's total catch of Hilsa currently originates from the marine environment. Channa marulius, Mystus seenghala and Wallago attu. For turbot (Scophthalmus maximus), greater growth at or near isosmotic salinity was linked to increased food ingestion (Gaumet et al., 1995; Imsland et al., 2001). Vijayan, in Aquaculture, 2019. IUCN status: Least concern (LC). As a result of recently achieved an enormous amount of maritime boundary, marine fisheries production has increased. Fig. At the same time, there has been little study with regard to details of endemism and species richness in Northeast India. Table 1. While the estuary may be viewed as an environment to which many SW fishes are not adapted, many species exhibit greater growth at lower salinities, e.g. Distribution. Effect of sub lethal concentrations of a household detergent on certain biochemical constituents of catfish, Mystus seenghala. We use cookies to help provide and enhance our service and tailor content and ads. Species reported to be unaffected by EUS outbreaks include the Chinese carps, tilapias, and milkfish (Chanos chanos). RGUMF-105; 4 exs., 85.0–110 mm SL, Dikrong River at Doimukh, Papum Pare district, Arunachal Pradesh (AP). Sperata seenghala constitutes an important capture shery of all the major rivers and reservoirs of India, Bangladesh and Pakistan. Wada et al. Conservational status: A widely distributed species in Northeast India and Bangladesh. shortnose sturgeon) (Jarvis and Ballantyne, 2003). The common vegetables are potato, cauliflower, cabbage, tomato, beans, peas, carrot, radish, pumpkin, eggplants, bitter gourd, and others. Further, as reported by a number of other workers and mentioned earlier in this treatise, EUS is said to be caused by a fungus called A. invadans. sturgeons, paddlefishes (two species, including Siberian sturgeon (Acipenser beeri), beluga (Huso huso)); river eels (three species, including Japanese eel (Anguilla japonica), European eel (Anguilla anguilla), Short finned eel (Anguilla australis)); salmons, trouts, smelts (11 species, including Atlantic salmon (Salmo salar), rainbow trout (Oncorhynchus mykiss), coho salmon (Oncorhynchus kisutch), chinook salmon (Oncorhynchus tshawytscha), ayu sweetfish (Plecoglossus altivelis), sea trout (Salmo trutta), Arctic char (Salvelinus alpinus), brook trout (Salvelinus fontinalis), European whitefish (Coregonus lavaretus), chum salmon (Oncorhynchus keta), grayling (Thymallus thymallus)); miscellaneous diadromous fishes (two species, including milkfish (Chanos chanos), barramundi (giant sea perch; Lates calcarifer)); flounders, halibuts, soles (five species, including bastard halibut (Paralichthys olivaceus), turbot (Psetta maxima), other flatfishes (Pleuronectiformes), common sole (Solea vulgaris), Atlantic halibut (Hippoglossus hippoglossus)); cods, hakes, haddocks (one species, including Atlantic cod (Gadus morhua)); redfishes, basses, congers (18 species, including Japanese seabream (Pagrus major), gilthead seabream (Sparus auratus), European seabass (Dicentrarchus labrax), puffers (Tetraodontidae; species not given), blackhead seabream (Acanthopagrus schlegeli), mangrove red snapper (Lutjanus argentimaculatus), greasy grouper (Epinephelus tauvina), sharpsnout seabream (Diplodus puntazzo), Russells snapper (Lutjanus russelli), goldlined seabream (Rhabdosargus sarba), areolate grouper (Epinephelus areolatus), goldsilk seabream (Acanthopagrus berda), red drum (Sciaenops ocellatus), goatfishes (Upeneus spp. Zoogeographically, FW fishes have been classified differently by different workers. 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