Recommended
More Related Content
What's hot
What's hot (19)
Similar to A presentation on Fish Diversity of the Meghna River for BFRF conference
Similar to A presentation on Fish Diversity of the Meghna River for BFRF conference (20)
Recently uploaded
Recently uploaded (20)
A presentation on Fish Diversity of the Meghna River for BFRF conference
- 3. Background
- 4. To find out the present fish diversity of the Meghna river Objective METHODOLOGY Study area and duration The present study was carried out in the Meghna River near Narsingdi district (23º54´37.13"N and 90º43´21.63”) during winter and rainy season.
- 5. Preservation • Fishes those appeared difficult to identify on the spot, were preserved with 10% formalin
- 6. Morphometric and meristic characteristics were identified according to Rahman (1989, 2005), Bhuiyan (1964), Rahman et al. (2009), Roy et al. (2007) and Talwar and Jhingran (1991). Identification
- 7. RESULTS
- 8. A total of 69 fish species were identified during the present study under 23 orders and 28 families Number of fish species according to their family
- 9. Serial no. Local Name Common Name Scientific Name IUCN Status 1 Shing Stinging catfish Stinging catfish Not Threatened 2 Magur Walking catfish Clarias batrachus Not Threatened 3 Tengra Day’s mystus Mystus bleekeri Not Threatened 4 Koi Climbing perch Anabus testudineus Not Threatened 5 Rui Rohu Labeo rohita Not Threatened 6 Catol Catla Catla catla Not Threatened 7 Mrigel Mrigal Cirrhinus cirrhosus Not Threatened 8 Chapila Indian river shad Gudusiachapra Not Threatened 9 Khalisha Banded Gourami Colisa fasciatus Not Threatened 10 Boal Freshwater Shark Wallago attu Not Threatened 11 Gutum Guntea loach Lepidocephalichthys guntea Not Threatened 12 Aila/Kajuli Gangetic Ailia Aila coila Not Threatened 13 Mola Mola carplet Amblypharyngnodon mola Not Threatened 14 Jat puti Pool barb Puntius sarena Not Threatened
- 10. Serial no. Local Name Common Name Scientific Name IUCN Status 15 Bele, Baila Tank goby Glossogobius giuris Not Threatened 16 Taki Spotted snakehead Channa punctatus Not Threatened 17 Potka Ocellated Pufferfish Tetraodon cutcutia Not Threatened 18 Kaikka Freshwater Garfish Xenentodon cancila Not Threatened 19 Batasi Indian Potasi Pseudeutropius atherinoides Not Threatened 20 Bojuri tengra Tengara Mystus Mystus tengara Not Threatened 21 Ghagor Menoda Catfish Hemibagrus menoda Not Threatened 22 Shol Striped Snaked Channa striatus Not Threatened 23 Boicha Dwarf Gourami Colisa lalia Not Threatened 24 Pan pata Large Tooth Flounder Pseudorhombus arsius Not Threatened 25 Taka punti Rosy Barb Puntius conchonius Not Threatened 26 Koitor poa Coitor Croaker Johnius coitor Not Threatened
- 11. Serial no. Local Name Common Name Scientific Name IUCN Status 27 Silong Silond Catfish Silonia silondia Endangered 28 Pabda Pabdah Catfish Ompok pabda Endangered 29 Bata Bata Labeo bata Endangered 30 Chitol Clown Knifefish Chitala chitala Endangered 31 Gonia Kuria Labeo Labeo gonius Endangered 32 kachki Ganges river sprat Corica soborna Endangered 33 Dhela Cotio Rohtee cotio Endangered 34 Gazar Great Snakehead Channa marulius Endangered 35 Napit Frail Gourami Ctenops nobilis Endangered 36 Naptey koi Badis Badis badis Endangered 37 Ilish Hilsa shad Tenualosa ilisha Endangered 38 Kalagoni Black Rohu Labeo calbasu Endangered 39 Bangra Squarehead Chaca chaca Endangered 40 Baim Zig-zag eel Mastacembelus armatus Endangered
- 12. Serial no. Local Name Common Name Scientific Name IUCN Status 41 Silver carp Silver carp Hypophthalmichthys molitrix Not Listed 42 Grass carp Grass carp Ctenopharyngodon idella Not Listed 43 Mirror carp Mirror carp Cyprinus carpio var specularis Not Listed 44 Nile Tilapia Mozambique tilapia Oreochromis mossambicus Not Listed 45 Lal chanda Highfin Glassy Perchlet Parambasis lala Not Listed 46 Boro Icha Giant freshwater prawn Macrobrachium rosenbergii Not Listed 47 Big head Carp Bighead carp Hypophthalmichthys nobilis Not Listed 48 Haush Bleeker's Whipray Himantura bleekeri Not Listed 49 Sarputi Punta Olive barb Barbodes sarana Critically Endangered 50 Kalibaus Orange-fin labeo Labeo calbasu Critically Endangered 51 Pangas Pungas Pangasius pangasius Critically Endangered 52 Snake eel Longfin snake-eel Pisodonophis cancrivorus Critically Endangered 53 Rida Rita Rita rita Critically Endangered 54 Ghaura Garua Bacha Clupisoma garua Critically Endangered 55 Vacha Batchwa Bacha Eutropichthys vacha Critically Endangered
- 13. Serial no. Local Name Common Name Scientific Name IUCN Status 56 Choto Kolisha Dwarf gourami Colisa chuna Vulnerable 57 Tara baim Lesser spiny eel Macrognathus aculeatus Vulnerable 58 Chanda Elongate Glass-perchlet Chanda nema Vulnerable 59 Bheda Gangetic Leaffish Nandus nandus Vulnerable 60 Ayre Long whiskered catfish Aorichthys aor Vulnerable 61 Foli Bronze Featherbac Notopterus notopterus Vulnerable 62 Tit puti Ticto barb Puntius ticto Vulnerable 63 Gulsha Gangetic mystus Mystus cavasius Vulnerable 64 RagaTaki Walking Snakehead Channa orientalis Vulnerable 65 Tek chanda Indian Glassy Fish Parambasis ranga Vulnerable 66 Icha Freshwater prawn Unidentified Data deficient 67 Gura Icha Freshwater prawn Unidentified Data deficient 68 Darkina Flying barb Parluciosoma daniconius Rare 69 Common carp Common Carp Cyprinus caprio Most common
- 14. 26 14 8 7 10 2 1 1 0 5 10 15 20 25 30 Not Threatened Endangered Not Listed Critically Endangered Vulnerable Data deficient Rare Most common Numberofspecies IUCN Status Present status of fishes at the Meghna River
- 15. 110 126 71 71 69 0 20 40 60 80 100 120 140 Islam and Hossain (1983) Mortuza (1992) Mohsin et al. (2013) Joadder et al. (2015)Bhuyan et al. (2016) Numberoffishspecies Researches Comparison of present results with past results From the graph it can be concluded that there is a dramatical decrease in number of fish species from 1983 to 2016
- 16. Causes of fish depletion o Pollution (industrial, domestic, agro-chemical and other pollution) o Over Fishing (Fishing; Dulvy et al. 2003; Garcia et al. 2006) o Overexploitation (Dulvy et al. 2003) o Climate change, o Habitat loss, o Invasive species oEutrophication
- 17. CONCLUSIONS In the present findings, 7 species were found critically endangered, 15 species were endangered and 12 species were vulnerable while 26 species were not found in threatened position. The fish diversity of Bangladesh undoubtedly undergoing critical stage than the past. On the basis of our research findings and other similar studies of recent times, we can conclude that high attention should be given on the conservation and management of riverine/open water fisheries diversity. To achieve the conservation goal, in depth research on different areas such as minimizing the pollution threats from the industries and agrochemical inputs in the river Meghna, use of destructive nets and indiscriminate fishing, impacts of invasive species on the native ones and maintaining data base of fish diversity etc. are a priority.
- 18. THANKS TO ALL!!