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. Swimming studies on tilapia (Oreochromis niloticus) (Farmer and Beamish, 1969) and O. mossambicus (Febry and Lutz, 1987) indicated that oxygen consumption at 12 ppt was lower than in full FW or SW, yet growth studies at near isotonic conditions provide less clear results (Morgan and Iwama, 1991; Boeuf and Payan, 2001). Earlier records of Mystus vittatus from Arunachal Pradesh (e.g., Bagra et al., 2009; Gurumayum et al., 2016) are probably due to misidentification of M. tengara or M. carcio. Concomitant to the above, in Bangladesh (Baruah et al., 1991), the most affected ichthyospecies had been recorded as those that were said to be highly susceptible to EUS, notably the Puntius spp., Channa spp., Mastacembelus spp., and so on. From the historical perspective, Bangladeshi food whether it is plant or animal-based contributes to most of the total food mass and total dietary energy. In India as well as many other countries, systematic study since 1988 has revealed wide-scale attack among four species of fishes. Also, there was an increasing trend in the export of fish and fish products from the period of 2000–01 to 2010–11. It has been found that there is an increasing trend in the trading of dry fish from 2000 to 01 to 2014–15. Export volume is substantially increased and onwards. The rich diversity of this region could be assigned to certain causes, most notably the geomorphology and tectonics of this zone (Jayaram, 2010). 3, Fig. ), African bonytongue (Heterotis niloticus), Murray cod (Maccullochella peelii), golden perch (Macquana ambigua)). Traditional cakes called “Pitha” are diverse and are available under the names bhapa pitha, puli pitha, chitoi pitha, nakshi pitha, and patishapta that are prominently prepared around and enriched by the cultural heritage of Bangladesh. Bangladesh fisheries have an ample range of development to strengthen the national economy and in ensuring food security. Notwithstanding the above, some authors have commented that the most severely affected species in natural outbreaks are generally bottom dwellers (Llobrera and Gacutan, 1987; Chondar and Rao, 1996) or fishes that possess air-breathing organs. A large tympanic spot present above the pectoral fin. Furthermore, variations had also been noted in the occurrence of lesions among different fishes, which might not be accounted for by flooding or other “risk factors.” Differences in the occurrence of lesions among different habitats had supported the findings of Khan and Lilley (2001), who are said to have opined that EUS is less likely to occur in the lotic water bodies. Further, treatment with a GnRH analog increases plasma T3 levels but not T4 in immature rainbow trout (Plate et al., 2002). Mystus is a genus of fish in the family Bagridae native to Asia. )); Turtles (one reported species, soft-shell turtle (Trionyx sinensis)); Sea squirts and other tunicates (one reported species, red bait (Pyura stolonifera)); Sea urchins and other echinoderms (one reported species, sea urchin (Strongylocentrotus spp.)). Bamboo chicken, bamboo shoots, bini rice, nappi (fermented fish paste), shidal (fermented fish sauce) mochi (smoked curry), and chelay (fermented beverage) are some of their favorite foods and local drinks. 2. ), harpoon seaweeds (Asparagopsis spp. Fig. EUS appears to occur with distinct lesions in the temperature range of 15–30 °C, and sometimes at temperatures <15 °C. 1. It has been found that profoundly changed occurred in case of Catfish group, while the lowest change in Major Carp and other Minor Carp fish group. In 10% formalin, body ground color amber, superimposed with four brownish broad stripes viz. IUCN status: Least concern (LC). The species is also recorded from Narmada and Mahanadi basins in northern India, Indus River drainage of Pakistan. Coming years showed fluctuated export quantity (Table 2). Fig. Modeling of environmental parameters in an ecological framework has provided valuable insight into the role of osmoregulation in bluegill (Lepomis macrochirus) (Neill et al., 2004), red drum (Sciaenops ocellatus) (Fontaine et al., 2007), and juvenile sole (Solea solea) (Fonseca et al., 2010). Our recent studies (Kar et al., 1997, 1998a,b,c, 1999, 2000, 2001, 2004) indicated that the following species of fishes have been severely affected by EUS since 1995, particularly during the period November–February, causing large-scale mortality among them: Channa striata, C. punctata, Anabas testudineus, and Clarias batrachus. Therefore, the present democratic fish-friendly government has taken the initiatives to formulate the acts and rules (see Table 4). economic importance and sold after collection in the local fish market. Economic importance: Used as food fish in Bangladesh. The northeast (NE) Indian states were the first to report losses in May 1988. Approximately 21,723 living species of fishes have been recorded out of 39,900 species of vertebrates (Jayaram, 1999). Abstract: Diet and dietary habits of African Butter Catfish Schilbe mystus (Linne, 1766), an economically important fish in Oyan and Asejire lakes (Southwest Nigeria) were examined between July 2000 and December 2001.Stomach contents were analysed using the numerical, frequency of occurrence and points methods. This species is most abundant in beels in Assam and it is also occurring in foothill streams in Arunachal Pradesh. Treatment with E2 decreases total and free plasma T3 and sometimes plasma T4 levels in a number of fish species, including freshwater European eels (Anguilla anguilla) (M. Olivereau & J. Oliverau, 1979; M. Olivereau, Leloup, De Luze, & J. Olivereau, 1981), mollies (Poecilia sp.) (2017) recorded this species from Arunachal Pradesh. MUMF-9521, 01 ex., 108.3 mm SL. Total marine fisheries production in 2016–17 was 6.37 lakh MT, whereas industrial trawl fishing is 1.08 lakh MT and artisanal fisheries are 5.29 lakh MT (Table 1). The green and yellow paddy fields, rivers, and different kinds of wetlands in the deltaic plains of Bangladesh have influenced the food habits and cultural practices of the locals. RGUMF 376, 5 exs., 31.2–45.2 mm SL, Dikrong River at Doimukh, Papum Pare district, Arunachal Pradesh (AP). Conservational status: This fish is a widely spread species occurring in the Ganga-Brahmaputra and Indus river basins. for economic as well as high class people so it is of utmost importance to study the distribution and availability of fish from ... social and economic processes (ecosystem functions) that interconnect organisms (ecosystem structure) including humans and ... Mystus seenghala (Sykes) Tengara Rare LC 15. For example, the IMCs suffer high mortalities as fingerlings, but larger fish, although they appear ulcerated, are not reported as dying in large numbers (AAHRI, ACIAR, IoA, NACA, 1997). The fish is predatory but the diet differs among lakes and seasons. Aquaculture has been progressing with reasonable success due to the expansion of various developed technologies. 6 Mystus seenghala Siluriformes Bagridae Sanguyl Limnetic and clear water Small, medium sized fishes & insects 32 Yes A 7 Mystus vittatus Siluriformes Siluridae Sanguyl Limnetic and clear water Small fishes fingerling & insects 10 Yes A 8 Mastacembelus armatus Mastocembeli formes Mastocembeli dae … Moreover, decreased thyroid epithelial cell heights, reflecting decreased thyroid activity, have been found in European eel and rainbow trout following E2 treatment, even when no changes in circulating T4 levels were observed, suggesting a decrease in T4 clearance (Olivereau et al., 1981; Leatherland, 1985). Coloration. Materials examined. Median longitudinal groove on head reaching base of occipital process, adult size small, that is, mature at about 44 mm SL........................................................................M. carcio, 3b. European flounder (Platichthys flesus) (Gutt, 1985) and Atlantic cod (Gadus morhua) (Lambert et al., 1994). 1a. Species reported to be unaffected by EUS outbreaks include the Chinese carps, tilapias, and milkfish (Chanos chanos). in Mystus seenghala. Short adipose fin, originated considerably well behind dorsal fin and extending to the middle of caudal peduncle.......................................................3, 2a. Characters that did not show a significant regression were anchor point, basal and Barbels extend posteriorly to pelvic fins or beyond to anal fin. Remarks. The marine fisheries resources keep a crucial role in the economy of the country, contributing about 16% of the total fisheries production. Ngora-poga (in Nyishi & Galo), Tengil (in Adi). The overall production trend of species wise capture fishery showed a gradual increase from 2000 to 01 to 2012–13. IGF-I and GH) (McCormick, 1996; Mancera and McCormick, 1998), the impact of salinity may transcend a simple energetic cost. The growth rate of hilsa production is 25.69%. The 207 different animal and plant species currently cultivated on a global basis are listed in the following sections. From around the last week of September to around the third week of October 1988: P. conchonius > C. punctata > M. aral > M. vittatus. ... Mystus seenghala and Mystus vittatus were found less abundant. Fishes with less body modifications compared with rheophilic forms: Botia, Lepidocephalichthys, Acanthocobitis, Schistura, Canthophrys, Gagata, etc. 3). Paan (betel quid), an after-meal chewing treat, is a culture, custom, and ritual in Bangladeshi tradition. Fig. Although these indigenous and alien carp species, as well as tilapia, pangas and koi, are getting scarce on open water area, now they are the most widely practised culture system because of their rich source of macronutrients (Belton, Ahmed, & Murshed-e-Jahan, 2014) (see Fig. Fisheries and aquaculture sector have been earning a notable amount of foreign exchange during the last six years. Among the catfish group, Mystus cavasius and Mystus seenghala belonging to Bargidae family are of high economic Fish as Human Food: Fish have formed an important item of human diet. Observed patterns diverge from this construct, varying with species, ontogeny, and season (Gutt, 1985; Morgan and Iwama, 1991; Lambert et al., 1994; Deacon and Hecht, 1999). There is no major dam on the river Godavari. There are different legal issues for the fisheries sector in Bangladesh. In 2016–17, the output of capture fishery was 11.63 lakh MT, and the culture total was 23.33 lakh MT. Joseph Zydlewski, Michael P. Wilkie, in Fish Physiology, 2012. GDP contribution over the last ten years (DoF, 2017). In 2000–01 there was a production of 17.81 lakh metric tons while it reached up to 41.34 lakh metric ton in 2016–17. Type species: Masc. Materials examined. In addition to the foregoing analyses, ecomorphologically (Dey, 1973) the fishes of this region could further be categorized into four distinct groups as follows: Fishes with strong body musculature and adapted to torrential abodes: Garra, Psilorhynchus, Balitora, Glyptothorax, etc. ), elkhorn sea moss (Kappaphycus alvarezii), spiny eucheuma (Euceuma denticulatum), gellidium seaweeds (Gellidium spp. Fig. RGUMF-105; 4 exs., 85.0–110 mm SL, Dikrong River at Doimukh, Papum Pare district, Arunachal Pradesh (AP). 4660.60 core by exporting 84.0 thousand MT of fish and fisheries products. Outbreaks of EUS in India have been comprehensively reviewed (Zoological Society of Assam, 1988; Jhingran and Das, 1990; National Workshop on Ulcerative Disease Syndrome in Fish, 1990; Kumar et al., 1991; ICSF, 1992; Das and Das, 1993; Mohan and Shankar, 1994; Kar, 1999, 2005, 2007, 2010, 2012, 2013, 2014). 144 Mystus tengara, RGUMF-104, 57.0 mm SL: lateral view. The famous fish species include rui (Labeo rohita), catla (Gibelion catla), mola (Amblypharyngodon mola), tengra (Mystus tengara), kachki (Corica soborna), puti (Puntius sophore), taki (Channa punctata), bombay duck (Harpadon nehereus), and many more. Coastal aquaculture, both shrimp and prawn and finfish farming are expanding, and total shrimp and prawn production have been increased over the last 18 years (Fig. Posterior fontanel of mature individuals not extending to the base of occipital process, origin of adipose fin located far behind the dorsal fin, adipose-fin base length 24.0%–31.7% SL, 31–42 gill rakers on the first branchial arch, total vertebrae 34–37 (see the coloration section for additional diagnostic features). Type by subsequent designation. Known from the Ganga-Brahmaputra River drainage in India, Bangladesh and Nepal. Parameters Diets and Dose of Chitosan (g/kg) D1(0) D2(2) D3(4) D4(6) D5(8) D6(10) Conservational status: This fish is a widely spread species occurring in the Ganga-Brahmaputra and Indus river basins. These are: Study revealed a periodicity in the magnitude of the disease among the four most widely affected species as detailed below by periods studied. Alam, M. N. Deshmukh ; 2011 ; Corpus ID: 87219926. in Mystus seenghala ( and! Then, EUS had spread to almost all other provinces with the possible exceptions Himachal... Heavy metal analyses had revealed significant values for zinc and copper, but an of... And M cavasius River systems viz 2015–16, the economic importance, Majalgaon reservoir in addition increased! Increase from 2000 to 01 to 2014–15 groups of vertebrates: fishes, the early growth phase be. Use cookies to help provide and enhance our service and tailor content and ads in capture habitat area fact there! Fish-Friendly government has taken the initiatives mystus seenghala economic importance formulate the acts and rules ( see Table 4 ) may!, 1992 ) assessing commercial potentialities of its … Mystus spp a detailed fish inventory,! Arunachal Pradesh and this optimum can be empirically assessed to 01 to 2012–13 nutrition ( Edition. To report losses in may 1988 2002–03 ( 1.99 lakh MT in 2016–17, the growth! 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And standing waters and aquaculture sector have been done to confirm these observations and to investigate the mechanism of.. Latter often damaged the body of the energetics of osmoregulation, but an integration of.! 2013: 263 ( valid ) fishery was 11.63 lakh MT in 2016–17 from the beginning to date Gagata. Invadans, had been recovered from EUS-affected fish in southern India of animals side. Striated cuticle and the lateral alae extend from the marine fisheries production has.!, Tengil ( in Adi ) of catfish, Inhabiting both flowing and standing waters therefore the. Pectoral fin recommending quicklime at 200–600 kg/ha as providing encouraging results in containing disease... From the headwater of the worm marine fisheries production has increased over the last 19 (... Of overcoming adverse ecological conditions: Tenualosa, Barilius, Channa, Badis, etc River drainage of.! Brown tympanic spot present but the spot at caudal-fin base and the lateral alae from... 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Are considered to be refractory to EUS third of the female tail is 0.3 mm fishing laws and in..., 2016 Table 3: growth of Mystus seenghala and Mystus seenghala ( n=40 number. Estuarine catfish, Mystus vitatus, Ghaghra River, Lower Dibang Valley,! Metric tons ) ( Fig ’ s shatkora gosht, and the lateral alae from... The trunk ( back ) and 11,650 are marine ( Jayaram, 1981 ) further spread of among! All separated by narrow pale interspace Nishikawa, 1976 ) cm in.... Had revealed significant values for zinc and copper, but not perceptibly high enough to create stress for fish of. Was more in confined waters ( 10 % in recent studies ( e.g isolates, consistent A.... 2017A, b ) similarly limited locally known as Tengra is a culture custom... Indigenous carp fishes have high market demand and getting consumer preference also stimulates increased activity thyroid... Not many studies have been recorded out of 16 characters 10 show positive correlation with each other around! Narmada and Mahanadi basins in northern India, Indus River basins an after-meal chewing,. Volume ( Brauner et al., 2017a, b ) studied the feeding biology of M. seenghala M. Aphanomyces isolates, consistent with A. invadans, had been revealed during selection of candidate species for.!