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Length-weight relationship (LWR) and relative condition factor are significant in fishery science as it provides information on fish wellbeing and biological data. The present study describes the LWR and condition factor of five small indigenous fish species of Sareswar Beel, Kokrajhar, Assam of Northeast India for the first time. A total of 443 specimens of five species viz. Nandus nandus, Glossogobius giuris, Puntius sophore, Pethia conchonius and Trichogaster fasciata were sampled from May 2021 to April 2022. All samples were collected using gill nets, bamboo traps, net traps and lift net. The total length and body weight were measured to determine the LWR and Fulton’s condition factor (K). The statistical parameters a, b, and Kn (Relative Condition factor) were also analysed. All species recorded K>1 except Glossogobius giuris (0.909±0.178), and the highest value was recorded in T. fasciata (2.023±0.687). The values of ‘b’ for all five species ranged from 1.643 to 2.961, indicating negative allometric growth pattern. This study is a first report on the LWR and condition factor of these species from Sareswar Beel, Assam. These results may be useful for sustainable management and comparison with future studies.


Glossogobius giuris Fultons’s condition factor Kokrajhar Nandus nandus Sustainable fishery

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NARZARY, B., & KHANGEMBAM, B. K. (2023). A study on the length-weight relationship and condition factor of five small indigenous fish species of Sareswar Beel in lower Assam, Northeast India. Iranian Journal of Ichthyology, 9(4), 204–212.


  1. Abbasi, K.; Mouludi-Saleh, A.; Eagderi, S. & Sarpanah, A. 2019. Length-weight relationship and condition factor of eight species of the genera Capoeta, Garra, Chondrostoma, Schizothorax and Paraschistura from Iranian inland waters. Iranian Journal of Ichthyology 6(4): 264-270.
  2. Ahmadi, A. 2021. Length-weight relationship and relative condition factor of the Kissing Gourami (Helostoma temminckii) from Sungai Batang River, Indonesia. Songklanakarin Journal of Science and Technology 43(1): 210-217.
  3. Anibeze, C.I.P. 2000. Length-weight relationship and relative condition of Heterobranchus longifilis (Valenciennes) from Idodo River, Nigeria. Naga, The ICLARM Quarterly 23(2): 34-35.
  4. Baitha, R.; Sinha, A.; Koushlesh, S.K.; Chanu, T.N.; Kumari, K.; Gogoi, P.; Ramteke, M. H.; Borah, S. & Das, B.K. 2018. Length-weight relationship of ten indigenous freshwater fish species from Gandak River, Bihar, India. Journal of Applied Ichthyology 34(1): 233-236.
  5. Baro, D.C.; Sharma, S. & Baishya, R.A. 2014. Status of ornamental fish diversity of Sonkosh River, Bodoland Territorial Council, Assam, India. Original Research 14(1): 28-33.
  6. Borah, S.; Bhattacharjya, B.K.; Saud, B.J.; Yadav, A.K.; Debnath, D.; Yengkokpam, S.; Das P.; Sharma, N.; Singh, N.S. & Sarma K.K. 2017. Length–weight relationship of six indigenous fish species from Deepor beel, a Ramsar site in Assam, India. Journal of Applied Ichthyology 33(3): 655-657.
  7. Chetia, D.; Pravin, B.R. & Borah, S. 2018. Ornamental Fish Diversity in the Jiadhal/Kumotiya River of Dhemaji District, Assam, India. International Journal of Current Microbiology and Applied Sciences 7(10): 3394-3398.
  8. Das, M.; Das, G. & Deka, P. 2015. Length-Weight relationship and relative condition factor of Puntius sophore (Hamilton, 1822) and Systomus sarana (Hamilton, 1822) of Deepor Beel (wetland) of Assam, India. International Journal of Fisheries and Aquatic Studies 3(2): 476-479.
  9. Datta, S. N.; Kaur, V. I.; Dhawan, A. & Jassal, G. 2013. Estimation of length-weight relationship and condition factor of spotted snakehead Channa punctata (Bloch) under different feeding regimes. SpringerPlus 2(1): 1-5.
  10. De Giosa, M.; Czerniejewski, P. & Rybczyk, A. 2014. Seasonal changes in condition factor and weight-length relationship of invasive Carassius gibelio (Bloch, 1782) from Leszczynskie Lakeland, Poland. Advances in Zoology 2014: 678763.
  11. Duarah, P. & Das K. 2019. Diversity of Small Indigenous Freshwater Fish Species (SIFs) in Assam; Nutritional Contents and Medicinal Importance: A Review. International Journal on Emerging Technologies 10(2): 357-361.
  12. Eagderi, S.; Mouludi-Saleh, A. & Cicek, E. 2020. Length-weight relationship of ten species of Leuciscinae sub-family (Cyprinidae) from Iranian inland waters. International Aquatic Research 12(2): 133.
  13. Ergüden, S.A. 2021. Length-Weight Relationships and Condition Factor of Garra turcica Karaman, 1971 from Asi River Basin, Turkey. Natural and Engineering Sciences 6(2): 102-111.
  14. Froese, R. 2006. Cube law, condition factor and weight length relationships: history, meta-analysis and recommendations. Journal of Applied Ichthyology 22(4): 241-253.
  15. Gohain, A. & Deka P. 2017. Length-Weight relationship and relative condition factor of Lepidocephalichthys guntea (Hamilton, 1822) of Ghati Beel of Dhemaji District of Assam, India. International Journal of Fisheries and Aquatic Studies 5(2): 514-517.
  16. Hasan, M.R.; Mamun, A.I. & Hossain, M.Y. 2020. Length-weight relationships of 12 indigenous fishes and 3 shellfishes from mangrove and floodplain ecosystems in Southwestern Bangladesh. Egyptian Journal of Aquatic Biology & Fisheries 24(5): 69-76.
  17. Hossain, M. Y.; Hossen, M. A.; Ahmed, Z. F.; Hossain, M. A.; Pramanik, M. N. U.; Nawer, F. & Islam, M. A. 2017. Length - weight relationships of 12 indigenous fish species in the Gajner Beel floodplain (NW Bangladesh). Journal of Applied Ichthyology 33: 842-845.
  18. Hossain, M.Y.; Sayed, S.R.M.; Rahman, M. M.; Ali, M.M.; Hossen, M. A.; Elgorban, A.M. & Ohtomi, J. 2015. Length-weight relationships of nine fish species from the Tetulia River, southern Bangladesh. Journal of Applied Ichthyology 31: 967-969.
  19. Jafari, O.; Hedayati, A. & Keivany, Y. 2016. Length weight relationships and condition factors of Alburnus zagrosensis Coad, 2009, from three rivers of Tigris basin in Iran (Teleostei: Cyprinidae). Iranian Journal of Ichthyology 3(4): 316-320.
  20. Jafari-Patcan, A.; Eagderi, S. & Mouludi-Saleh, A. 2018. Length-weight relationship for four fish species from the Oman Sea, Iran. International Journal of Aquatic Biology 6(5): 294-295.
  21. Jisr, N.; Younesb, G.; Sukhn, C. & El-Dakdouki, M.H. 2018. Length-weight relationships and relative condition factor of fish inhabiting the marine area of the Eastern Mediterranean city, Tripoli-Lebanon. Egyptian Journal of Aquatic Research 44(4): 299-305.
  22. Kalita, L.; Nazir, S.; Ghosh, S.S. & Deka, P. 2016. Length-Weight relationship and relative condition factor of Nandus nandus (Hamilton, 1822) of Garjan Beel (wetland) of Assam, India. International Journal of Biology Research 1(2): 36-39.
  23. Kazemi, H.; Paighambari, S.Y.; Daliri, M. & Naderi, R.A. 2013. Length-weight and length-length relationships, condition factors and optimal length of some fish species from the Persian Gulf and Oman Sea. International Journal of Aquatic Biology 1(4): 167-174.
  24. Kurbah, B.M. & Bhuyan, R.N. 2018. Length-weight relationship and relative condition factor (KN) of Monopterus cuchia (Hamilton) in Meghalaya, India. International Journal of Biology Research 3(1): 312-318.
  25. Le-Cren, E.D. 1951. The length-weight relationship and seasonal cycle in gonad–weight and condition in the Perch (Perca fluviatilis). Journal of Animal Ecology 20(2): 201-219.
  26. Lizama, M.L. & Ambrósio, A.M. 2002. Condition factor in nine species of fish of the characidae family in the upper Paraná River floodplain, Brazil. Brazilian Journal of Biology 6: 113-124.
  27. Malakar, M. & Boruah, S. 2017. Diversity and Present Status of Fish Species in Three Floodplain Wetlands of Central Assam, India. IOSR Journal of Environmental Science, Toxicology and Food Technology (IOSR-JESTFT) 11(1): 54-59.
  28. Mouludi-Saleh, A. & Eagderi, S. 2019. Length-weight relationship and condition factor of ten fish species (Cyprinidae, Sisoridae, Mugilidae, Cichlidae, Gobiidae and Channidae) from Iranian inland waters. Journal of Wildlife and Biodiversity 3(4): 12-15.
  29. Oni, S.K.; Olayemi, J.Y. & Adegboye, J.D. 1983. Comparative physiology of three ecologically distinct fresh water fishes, Alestes nurse Ruppell, Synodontis schall Bloch and S. Schneider and Tilapia Zilli Gervais. Journal of Fish Biology 22: 105-109.
  30. Paswan, G.; Abujam, S.K.S.; Dey, M. & Biswas, S.P. 2012. Length-Weight Relationship of two species of Trichogaster (Colisa) from Brahmaputra Basin of Assam. Journal of Bio Innovation 1(1): 6-13.
  31. Paul, S. 2020. Bionomics of Gangetic leaf fish, Nandus nandus (Hamilton, 1822), an important food fish of Assam. International Journal of Fisheries and Aquatic Studies 8(3): 191-195.
  32. Pauly, D. 1984. Fish population dynamics in tropical waters: A manual for use with programmable calculators. ICLARM Studies and Reviews 8: 325.
  33. Phan, G.H.; Linh, L.T.T.; Dinh, Q. M.; Truong, N.T.; Ton, H. & Nguyen, D. 2021. Length-weight relationship, growth pattern and condition factor of Glossogobius giuris caught from coastal areas in the Mekong Delta. Aquaculture, Aquarium, Conservation & Legislation Bioflux 14(3): 1478-1485.
  34. Remya, R.; Amina, S. & Bindu, L. 2021. Length-weight relationships of eight fish species from the Kayamkulam Estuary in Kerala, India. Journal of Aquatic Biology & Fisheries 9: 29-32.
  35. Richter, H.; Lückstädt, C.; Focken, U. & Becker, K. 2000. An improved procedure to assess fish condition on the basis of length-weight relationships. Archive of Fishery and Marine Research 48(3): 255-264.
  36. Ricker, W.E. 1973. Linear regressions in fishery research. Journal of the Fisheries Board of Canada 30(3): 409-434.
  37. Roul, S.K.; Akhil, A. R.; Retheesh, T.B.; Rajesh, K.M.; Ganga, U.; Abdussamad, E.M. & Rohit P. 2020. Length-Weight Relationships of fifty fish species from Indian Water. Thalassas: An International Journal of Marine Sciences 36(2): 309-314.
  38. Roul, S.K.; Kumar, R.; Jaiswar, A.K.; Retheesh, T.B.; Akhil, A.R.; Prakasan, D.; Ganga, U.; Abdussamad, E.M.; Shenoy, L. & Rohit P. 2019. Biometric analysis of the flat needlefish Ablennes hians (Valenciennes, 1846) (Pisces: Belonidae) in the south-eastern Arabian Sea. Indian Journal of Marine Science 48(4): 457-463.
  39. Roul, S.K.; Retheesh, T.B.; Ganga, U.; Abdussamad, E.M.; Rohit, P. & Jaiswar, A.K. 2018. Length-weight relationships of five needlefish species from Kerala waters, south‐west coast of India. Journal of Applied Ichthyology 34(1): 190-192.
  40. Safran, P. 1992. Theoretical analysis of the weight-length relationships in fish juveniles. Marine Biology 112(4): 545-551.
  41. Salvador, G.B.; Frederico, R.C.; Pessali, T.C.; Vieira, F. & Freitas, T.M.S. 2018. Length-weight relationship of 21 fish species from Rio Doce River basin, Minas Gerais, Brazil. Journal of Applied Ichthyology 34(5): 1198-1201.
  42. Sandhya, K.M.; Karnatak, G.; Amluaia, L.; Sarkar, U.K.; Kumari, S.; Mishal, P.; Kumar, V.; Panda, D.; Ali, Y. & Naskar, B. 2020. Length-weight relationships of eighteen species of freshwater fishes from Panchet Reservoir in Ganges basin, Jharkhand, India. Indian Journal of Fisheries 67(1): 47-55.
  43. Sheikh, Z.A. & Ahmed I. 2019. Length-weight relationships of seven indigenous fish species of Kashmir Himalaya, India. Iranian Journal of Ichthyology 6(3): 240-243.
  44. Singh, M. & Serajuddin, M. 2017. Length-weight, length- length relationship and condition factor of Channa punctatus collected from three different rivers of India. Journal of Entomology and Zoology Studies 5(1): 191-197.
  45. Sonowal, N.; Nayak, N.; Dohutia, S.; Borah, R. & Biswas, S.P. 2019. Length-Weight Relationship of Fingerlings of Channa stewartii (Family: Channidae) Reared under Captive Condition. Journal of Bioresources 6(2): 80-84.
  46. Talwar, P.K. & Jhingran, A.G. 1991. Inland Fishes of India and Adjacent Countries (Vols. 1 & 2). Oxford and IBH Publishing Co.Pvt. Ltd., New Delhi.
  47. Tarkan, A.S.; Gaygusuz, O.; Acipinar, H.; Gürsoy, C. & Ozulug, M. 2006. Length-weight relationship of fishes from the Marmara region (NW-Turkey). Journal of Applied Ichthyology 22: 271-273.
  48. Türker, D.; Zengin, K. & Tünay, Ö.K. 2018. Length-Weight relationships for nine chondrichthyes fish species from Edremit Bay (North Aegean Sea). Turkish Journal of Fisheries and Aquatic Science 19(1): 71-79.
  49. Vishwanath, W. 2017. Diversity and conservation status of freshwater fishes of the major rivers of northeast India. Aquatic Ecosystem Health & Management 20(1-2): 86-101.
  50. Wootton, R.J. 1992. Fish ecology: Tertiary level biology. Blackwell, London.
  51. Zakaria, Z.M.; Jalal, K.C.A. & Ambak M.A. 2000. Length -weight relationship and relative condition factor of Sebarau, Hampala macrolepidota (Van Hasselt) in Kenyir, Malaysia. Pakistan Journal of Biological Science 3(5): 721-724.
  52. Zare-Shahraki, M.; Keivany, Y.; Ebrahimi, E.; Bruder, A.; Flotemersch, J. & Blocksom, K.A. 2020. Length-weight relationships of seven fish species from the Karun River system, southwestern Iran. Iranian Journal of Ichthyology 7(4): 352-355.
  53. Zuev, I.V.; Trofimova, E. A. & Zotina, T.A. 2018. Seasonal variability of length-weight relationships of Arctic grayling (Thymallus arcticus) and Siberian dace (Leuciscus baicalensis) inhabiting the middle reaches of the Yenisei River, Siberia, Russia. Turkish Journal of Fisheries and Aquatic Sciences 19(10): 893-89.