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Reproduction of Eutropiichthys vacha (Schilbeidae) in the Ganges River (NW Bangladesh) with special reference to potential influence of climate variability

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Abstract

The Batchwa vacha, Eutropiichthys vacha is commercially important, supporting a viable small- and large-scale fishery throughout the Ganges River, NW Bangladesh. This study provides detail information on reproduction of E. vacha including size at sexual maturity, spawning and peak spawning season, and fecundity based on 734 female specimens through regular monthly sampling using cast net, gill net, and square lift net in the Ganges River during January to December 2016. Also, our study estimated the effects of climate change including temperature and rainfall on reproduction of E. vacha in the Ganges River. For each individual, lengths (total length, TL; standard length, SL) and body weight (BW) were measured with slide caliper and digital balance, respectively. Gonads (ovaries) were collected carefully by ventral dissection of each female specimen and weighed to the nearest 0.01 g accuracy. The gonadosomatic index (GSI % = (GW/BW) ×100), modified gonadosomatic index (MGSI % = (GW/BW − GW) × 100), and Dobriyal index (DI = \( \sqrt[3]{\mathrm{GW}} \)) were calculated to estimate the size at sexual maturity (L50) and spawning season. Based on GSI, MGSI, and DI, the L50 was calculated as 12.5 cm TL for female. The TL50, the TL at which 50% of individuals become mature, was calculated by logistic equation as 12.7 cm. Also, on the basis of higher values of GSI, MGSI, and DI, spawning season was ranged from April to August, with the peak in June–July, signifying the peak spawning season for E. vacha in the Ganges River. The total fecundity (FT) ranged from 4800 to 77,976 (mean ± SD, 31384 ± 23,747) and was highly correlated with TL and BW. Water temperature during the spawning period ranged from 28 to 34 °C, with an average of 31 °C and there was significant correlation between temperature and GSI. Also, the spawning season coincides with the peak rainfall and there was significant correlation between rainfall and GSI. Additionally, analysis of long data series indicated that annual average air temperature is increasing by 0.0258 °C/year, while the annual average rainfall is decreasing by 3.107 mm/year. Finally, the findings of this study would be very effective to impose specific management for E. vacha in the Ganges River and surrounding ecosystems.

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References

  • Abbas A (2010) Food and feeding habits of freshwater catfish Eutropiichthys vacha (Bleeker). Indian J Sci Res 1:83–86

    Google Scholar 

  • Ahamed F, Ohtomi J (2014) Relative growth and sexual maturity of the pandalid shrimp Plesionika izumiae (Decapoda, Caridea) in Kagoshima Bay, Southern Japan. Crustaceana 87:1567–1577

    Article  Google Scholar 

  • Ahamed F, Saha N, Ahmed ZF, Hossain MY, Ohtomi J (2018) Reproductive biology of Apocryptes bato (Gobiidae) in the Payra River, southern Bangladesh. J Appl Ichthyol:1–7. https://doi.org/10.1111/jai.13781

  • Alonso-Fernández A, Vallejo AC, Saborido-Rey F, Murua H, Trippel EA (2009) Fecundity estimation of Atlantic cod (Gadus morhua) and haddock (Melanogrammus aeglefinus) of Georges Bank: application of the autodiametric method. Fish Res 99:47–54

    Article  Google Scholar 

  • APHA (American Water Works Association and Water Pollution Control Federation) (2005) Standard methods for the examination of water and wastewater, 22nd edn. American Public Health Association, Washington DC

    Google Scholar 

  • Azadi MA, Islam MA, Solaiman S (1990) Some aspects of reproductive biology of Eutropiichthys vacha (Ham.) in Kaptai Lake, Bangladesh. Chittagong Univ Stud Part II Sci 14:43–48

    Google Scholar 

  • Biagi R, Mantelatto FLM (2006) Relative growth and sexual maturity of the hermit crab Paguristes erythrops (Anomura, Diogenidae) from South Atlantic. Hydrobiologia 559:247–254

    Article  Google Scholar 

  • Binohlan C, Froese R (2009) Empirical equations for estimating maximum length from length at first maturity. J Appl Ichthyol 25:611–613

    Article  Google Scholar 

  • Chmilevskiy DA, Lavrova TV (1990) The influence of temperature on oogenesis in Tilapia, Oreochroimis mossambicus. J Appl Ichthyol 30:14–24

    Google Scholar 

  • Craig JF, Halls AS, Barr JJF, Bean CW (2004) The Bangladesh floodplain fisheries. Fish Res 66:271–286

    Article  Google Scholar 

  • de Carvalho PA, Paschoalini AL, Santos GB, Rizzo E, Bazzoli N (2009) Reproductive biology of Astyanax fasciatus (Pisces: Characiformes) in a reservoir in southeastern Brazil. J Appl Ichthyol 25:306–313

    Article  Google Scholar 

  • Dobriyal AK, Rautela KK, Rautela AS (1999) Invention of a new index for the determination of sexual maturity in fishes. Uttar Pradesh J Zool 19:207–209

    Google Scholar 

  • Donelson JM, McCormick MI, Booth DJ, Munday PL (2014) Reproductive acclimation to increased water temperature in a tropical reef fish. PLoS One 9(5):e97223

    Article  CAS  Google Scholar 

  • Dulcic J, Skakelja N, Kraljevic M, Cetinic P (1998) On the fecundity of the Black Sea bream, Spondyliosoma cantharus (L.), from the Adriatic Sea (Croatian coast). Sci Mar 62:289–294

    Article  Google Scholar 

  • Eschmeyer W, Fong J (2014) Catalog of fishes: species by family/subfamily electronic version (accessed 23 March 2015). Available at http://research.calacademy.org/research/ichthyology/catalog/SpeciesByFamily.asp

  • Fontoura NF, Braun AS, Milani PCC (2009) Estimating size at first maturity (L 50) from gonadossomatic index (GSI) data. Neotrop Ichthyol 7:217–222

    Article  Google Scholar 

  • Froese R, Pauly D (Eds.) (2018) Fish base 2018, World Wide Web electronic publication. Available at: http://www.fishbase.org (Accessed on 22 March 2018)

  • Gomez KA, Gomez AA (1984) Statistical procedures for agricultural research, 2nd edn. Wiley-Inter Science, New York, p 680

    Google Scholar 

  • Hamilton F (1822) An account of the fishes found in the river Ganges and its branches. Edinburgh & London. An account of the fishes found in the river Ganges and its branches, i–vii + 1–405, Pls. 1–39

  • Hardie SA, White RW, Barmuta LA (2007) Reproductive biology of the threatened goldenGalaxias galaxias Auratus Johnston and the influence of lake hydrology. J Fish Biol 71:1820–1840

    Article  Google Scholar 

  • Hartnoll RG (1982) Growth. In: Bliss DE (ed) The biology of Crustacea. Academic Press, New York, pp 111–197

    Google Scholar 

  • Hora SL (1941) Siluroid fishes of India, Burma and Ceylon. XI. Fishes of the schilbeid genera Silonopangasius Hora, Pseudeutropius Bleaker, Proeutropiichthys Hora and Ailia Gray. Rec Indian Museum 43:97–112

  • Hossain MY (2010) Length-weight, length-length relationships and condition factor of three Schilbid catfishes from the Padma River, northwestern Bangladesh. Asian Fish Sci 23:329–339

    Google Scholar 

  • Hossain MY, Ohtomi J (2008) Reproductive biology of the southern rough shrimp Trachysalambria curvirostris (Penaeidae) in Kagoshima Bay, Southern Japan. J Crustac Biol 28:607–612

    Article  Google Scholar 

  • Hossain MY, Jasmine S, Ibrahim AHM, Ahmed ZF, Rahman MM, Ohtomi J (2009) Length-weight and length-length relationships of 10 small fish species from the Ganges, Bangladesh. J Appl Ichthyol 25:117–119

    Article  Google Scholar 

  • Hossain MY, Jewel MAS, Nahar L, Rahman MM, Naif A, Ohtomi J (2012a) Gonadosomatic index-based size at first sexual maturity of the catfish Eutropiichthys vacha (Hamilton 1822) in the Ganges River (NW Bangladesh). J Appl Ichthyol 28:601–605

    Article  Google Scholar 

  • Hossain MY, Rahman MM, Abdallah EM (2012b) Relationships between body size, weight, condition and fecundity of the threatened fish Puntius ticto (Hamilton, 1822) in the Ganges River, northwestern Bangladesh. Sains Malays 41:803–814

    Google Scholar 

  • Hossain MY, Rahman MM, Jewel MAS, Hossain MA, Ahamed F, Tumpa AS, Abdallah EM, Ohtomi J (2013) Life history traits of the critically endangered catfish Eutropiichthys vacha (Hamilton 1822) in the Jamuna (Brahmaputra River Distributary) River, northern Bangladesh. Sains Malays 42:265–277

    Google Scholar 

  • Hossain MY, Hossen MA, Islam MS, Jasmine S, Nawer F, Rahman MM (2017) Reproductive biology of Pethia ticto (Cyprinidae) from the Gorai River (SW Bangladesh). J Appl Ichthyol 33:1007–1014

    Article  Google Scholar 

  • Huxley JS (1932) Problems of relative growth. Methuen and Co. Ltd., London, p 276

    Google Scholar 

  • IUCN (2016) IUCN Red List of Threatened Species. Version 2016.1 IUCN 2016. IUCN Red List of Threatened Species. Downloaded on 03 December 2016

  • IUCN Bangladesh (2000) Red book of threatened fishes of Bangladesh. In: Mahmud-ul-Ameen, Md. Anwarul Islam, Ainun Nishat (eds). The World Conservation Union, xi, 116p

  • IUCN Bangladesh (2015) Red List of Bangladesh. Volume 5: freshwater fishes. IUCN, International Union for Conservation of Nature, Bangladesh Country Office, Dhaka, Bangladesh. pp. xvi+360

  • Kar D, Laskar BA, Nath D (2006) Fecundity of Eutropiichthys vacha Hamilton-Buchanan: a commercially important fish in Assam. Environ Ecol 24:726–727

    Google Scholar 

  • Kennedy AJ, Sutton TM, Fisher BE (2006) Reproductive biology of female shovelnose sturgeon in the upper Wabash River, Indiana. J Appl Ichthyol 22:177–182

    Article  Google Scholar 

  • Khatun R, Chakrabarti P (2016) Histological and surface ultrastructural observations on the saccus vasculosus of Eutropiichthys vacha (Hamilton). Int J Fish Aquat Stud 4:112–117

  • Khatun D, Hossain MY, Parvin MF, Ohtomi J (2018) Temporal variation of sex ratio, growth pattern and physiological status of Eutropiichthys vacha (Schilbeidae) in the Ganges River, NW Bangladesh. Zool Ecol 28:343–354

    Article  Google Scholar 

  • King M (2007) Fisheries biology, assessment and management, 2nd edn. Wiley-Blackwell Publishing, Oxford

    Book  Google Scholar 

  • Kraus GJ, Tomkiewicz J, Köster FW (2002) Egg production of Baltic cod (Gadus morhua) in relation to variable sex ratio, maturity, and fecundity. Can J Fish Aquat Sci 59:1908–1920

    Article  Google Scholar 

  • Lakra WS, Sarkar UK, Kumar RS, Pandey A, Dubey VK, Gusain OP (2010) Fish diversity, habitat ecology and their conservation and management issues of a tropical river in Ganga basin, India. Environmentalist 30:1–14

    Article  Google Scholar 

  • Lambert Y (2008) Why should we closely monitor fecundity in marine fish populations? J Northwest Atl Fish Sci 41:93–106

    Article  Google Scholar 

  • Le Cren ED (1951) The length–weight relationship and seasonal cycle gonad weight and condition in the perch, Perca fluviatilis. J Anim Ecol 2092:201–219

    Article  Google Scholar 

  • Lovett DL, Felder DL (1989) Application of regression techniques to studies of relative growth in crustaceans. J Crustacean Biol 9:529–539. https://doi.org/10.1163/193724089X00557

  • Lowe-McConnell RH (1987) Ecological studies in tropical fish communities. Cambridge Tropical Biology Series. Cambridge University Press, Cambridge, p 382

    Book  Google Scholar 

  • Lowerre-Barbieri SK, Brown-Peterson NJ, Murua H, Tomkiewicz J, Wyanski DM, Saborido-Rey F (2011) Emerging issues and methodological advances in fisheries reproductive biology. Mar Coast Fish 3:32–51

    Article  Google Scholar 

  • Lucifora LO, Valero JL, García VB (1999) Length at maturity of the Greeneye Spurdog Shark, Squalus mitsukurii (Elasmobranchii: Squalidae), from the SW Atlantic, with comparisons with other regions. Mar Freshw Res 50:629–632

    Article  Google Scholar 

  • Lynch AJ, Myers BJE, Chu C, Eby LA, Falke JA, Kovach RP (2016) Climate change effects on North American inland fish populations and assemblages. Fish 41:346–361

    Article  Google Scholar 

  • Lyons J, Rypel AL, Rasmussen RW, Burzynski TE, Eggold BT, Myers JT (2015) Trends in the reproductive phyolgeny of two great lakes fishes. Trans Am Fish Soc 144:1263–1274

    Article  Google Scholar 

  • Manjon-Cabeza ME, Garcia-Raso JE (1999) Relative growth of the dominant hermit crabs (Decapoda, Anomura) of detritic bottoms from southern Spain. Crustaceana 72:507–515

    Article  Google Scholar 

  • Murua HG, Kraus F, Saborido-Rey PR, Witthames A, Thorsen A, Junquera S (2003) Procedures to estimate fecundity of marine fish species in relation to their reproductive strategy. J Northwest Atl Fish Sci 33:33–54

    Article  Google Scholar 

  • Ng HH (2010) Eutropiichthys vacha. The IUCN Red List of Threatened Species 2010: e.T166491A6220391. https://doi.org/10.2305/IUCN.UK.2010,4.RLTS.T166491A6220391.en. Downloaded on 05 February 2018.

  • Ng HH, Lalramliana, Lalronunga S, Lalnuntluanga (2014) Eutropiichthys cetosus, a new riverine catfish (Teleostei: Schilbeidae) from northeastern India. J Threat Taxa 6:6073–6081

    Article  Google Scholar 

  • Nikolsky GV (1963) The ecology of fishes. Academic Press, New York

    Google Scholar 

  • Nitschke P, Mather M, Juanes F (2001) A comparison of length-, weight-, and age-specific fecundity relationships for cunner in Cape Cod Bay. N Am J Fish Manag 21:86–95

    Article  Google Scholar 

  • Owiti DO, Dadzie S (1989) Maturity, fecundity and the effect of reduced rainfall on the spawning rhythm of a siluroid catfish, Clarias mossambicus (Peters). Aquac Res 20:355–368

    Article  Google Scholar 

  • Pankhurst NW, Munday PL (2011) Effects of climate change on fish reproduction and early life history stages. Mar Freshw Res 62:1015–1026

    Article  CAS  Google Scholar 

  • Pankhurst NW, Porter MJR (2003) Cold and dark or warm and light: variations on the theme of environmental control of reproduction. Fish Physiol Biochem 28:385–389

    Article  CAS  Google Scholar 

  • Panukhurst NW, King HR (2010) Temperature and salmonid reproduction: implications for aquaculture. J Fish Biol 76:69–85

    Article  Google Scholar 

  • Park CB, Kim YJ, Soyano K (2017) Effects of increasing temperature due to aquatic climate change on the self-fertility and the sexual development of the hermaphrodite fish, Kryptolebias marmoratus. Environ Sci Pollut Res 24:1484–1494

    Article  CAS  Google Scholar 

  • Parkinson D, Philipport JC, Barras E (1999) A preliminary investigation of spawning migration of grayling in a small stream determined by radio-tracking. J Fish Biol 55:172–182

    Article  Google Scholar 

  • Parvej MR, Islam MR, Minar MH, Hossain MB, Tushar MR (2014) Landmark-based morphometric andmeristic variations of the critically endangered catfish, Eutropiichthys vacha from three different populations in Bangladesh. World J Fish & Marine Sci 6:378–385

  • Peer AC, Miller TJ (2014) Climate change, migration phenology, and fisheries management interact with unanticipated consequences. N Am J Fish Manag 34:94–110

    Article  Google Scholar 

  • Qasim SZ, Qayyum A (1961) Spawning frequencies and breeding season of some fresh water fishes with special reference to those occurring in the plains of Northern India. Indian J Fish 8:27–43

    Google Scholar 

  • Rahman MM, Hossain MY, Tumpa AS, Hossain MI, Billah MM, Ohtomi J (2018) Size at sexual maturity and fecundity of the mola carplet Amblypharyngodon mola (Hamilton 1822) (Cyprinidae) in the Ganges River, Bangladesh. Zool Ecol 28:429–436. https://doi.org/10.1080/21658005.2018.1537906

    Article  Google Scholar 

  • Rao BJ, Karamchandani SJ (1986) On the spawning biology of Ompok bimaculatus (Bloch) from Kulgarhi reservoir of Madhya Pradesh. J Inland Fish Soc India 18:40–47

    Google Scholar 

  • Ridha MT, Cruz EM, Al-Ameeri AA, Al-Ahmed AA (1998) Effects of controlling temperature and light duration on seed production in tilapia, Oreochromis spilurus (Gunther). Aquac Res 29:403–410

    Article  Google Scholar 

  • Rose GA (2005) On distributional responses of North Atlantic fish to climate change. ICES J Mar Sci 62:1360–1374

    Article  Google Scholar 

  • Ruzzante DE, Taggart CT, Cook D (1998) A nuclear DNA basis for shelf-and bank-scale population structure in Northwest Atlantic cod (Gadus morhua): Labrador to Georges Bank. Mol Ecol 7:1663–1680

    Article  Google Scholar 

  • Sani R, Gupta BK, Sarkar UK, Pandey A, Dubey VK, Lakra WS (2016) Length-weight relationships of 14 Indian freshwater fish species from the Betwa (Yamuna river tributary) and Gomti (Ganga river tributary) rivers. J Appl Ichthyol 26:456–459

  • Sarkar UK, Naskar M, Roy K, Sudheesan D, Srivastava PK, Gupta S, Bose AK (2017) Benchmarking pre-spawning fitness, climate preferendum of some catfishes from river Ganga and its proposed utility in climate research. Environ Monit Assess 189:491

    Article  Google Scholar 

  • Sarkar UK, Naskar M, Roy K, Sudheesan D, Gupta S, Bose AK, Srivastava PK, Nandy SK, Verma VK, Sarkar SD, Karnatak G (2018) Baseline information of reproduction parameters of an amphidromous croaker Johnius coitor (Hamilton, 1822) from Ganga River basin, India with special reference to potential influence of climatic variability. Aquat Living Resour 31:4

    Article  Google Scholar 

  • Shimizu A (2003) Effect of photoperiod and temperature on gonadal activity and plasma steroid levels in a reared strain of the mummichog (Fundulus heteroclitus) during different phases of its annual reproductive cycle. Gen Comp Endocrinol 131:310–324

    Article  CAS  Google Scholar 

  • Shoji J, Toshito S, Mizuno K, Kamimura Y, Hori HK (2011) Possible effects of global warming on fish recruitment: shifts in spawning season and latitudinal distribution can alter growth of fish early life stages through changes in day length. ICES J Mar Sci 68:1165–1169

    Article  Google Scholar 

  • Sokal RR, Rohlf FJ (1987) Introduction to biostatistics, 2nd edn. Freeman Publication, New York, ISBN: 9780716718055, p 363

    Google Scholar 

  • Soomro AN, Baloch WA, Jafri SIH, Suzuki H (2007) Studies on length-weight and length-length relationship of catfish Eutropiichthyes vacha Hamilton (Schilbeidae- Siluriformes) from Indus River, Sindh, Pakistan. Caspian J Environ Sci 5:143–145

    Google Scholar 

  • Soomro AN, Baloch WA, Jafri SIH, Burdi GH, Fulanda B (2012) Reproduction and feeding habits of the river catfish Eutropiichthys vacha (Hamilton, 1822) (Siluriformes. Schilbidae) in an impacted habiat. Kotri hydrodam, river Indus, Pakistan. Our Nat 10:269–280

    Article  Google Scholar 

  • Soria FN, Strüssmann CA, Miranda LA (2008) Higher water temperature impair the reproductive ability of the Pejerrey fish Odontesthes bonariensis: effects on the hypophyseal-gonadal axis. Physiol Biochem Zool 81:898–905

    Article  CAS  Google Scholar 

  • Stoumboudi MTH, Villwock W, Sela J, Abraham M (1993) Gonadosomatic index in Barbus longiceps, Capoeta damascina and their natural hybrid (Pisces, Cyprinidae), versus spermatozoan index in the parental males. J Fish Biol 43:865–875

    Article  Google Scholar 

  • Talwar PK, Jhingran AG (1991) Inland fishes of India and adjacent countries, vol 2. A. A. Balkema, Rotterdam, p 541

    Google Scholar 

  • Templeman W (1987) Differences in sexual maturity and related characteristics between populations of thorny skate (Raja radiate) from the Northwest Atlantic. J Northwest Atl Fish Sci 7:155–167

    Article  Google Scholar 

  • Tracey SR, Lyle J, Haddon M (2007) Reproductive biology and per-recruit analyses of striped trumpeter (Latris lineata) from Tasmania, Australia: implications for management. Fish Res 84:358–368

    Article  Google Scholar 

  • Tripathi S, Gopesh A, Joshi KD, Amitabh CD (2015) Size composition, exploitation pattern, sex ratio and sex structure of Eutropiichthys vacha (Hamilton, 1822) from middle stretch of the river Ganga at Allahabad, India. Adv Biol Sci Technol 116–120

  • Tripathi S, Gopesh A (2017) Reproductive profile of Eutropiichthys vacha (Hamilton, 1822) from the middle stretch of the Ganga River, India. J Nehru Gram Bharati Univ 6:20–26

    Google Scholar 

  • Trippel EA, Harvey HH (1991) Comparison of methods used to estimate age and length of fishes at sexual maturity using populations of White sucker (Catostomus commersoni). Can J Fish Aquat Sci 48:1446–1459

    Article  Google Scholar 

  • Watters G, Hobday AJ (1998) A new method for estimating the morphometric size at maturity of crabs. Can J Fish Aquat Sci 55:704–714

    Article  Google Scholar 

  • West G (1990) Methods of assessing ovarian development in fishes: a review. Mar Freshw Res 41:199–222

    Article  Google Scholar 

  • Wilding T, Young K, Pitkethley R (2000) Bay of plenty freshwater fish calendar. In. Environmental Report 00/26. Environment Bay of Plenty, Whakatane

  • Wootton RJ (1979) Energy costs of egg production and environmental determinants of fecundity in Teleost fishes. In: Miller PJ (ed) Fish phenology: anabolic adaptiveness in Teleosts. Academic Press, London, pp 133–159

    Google Scholar 

  • Zar JH (1984) Biostatistical analysis, 2nd edn. Prentice-Hall Inc., Englewood Cliffs

    Google Scholar 

Download references

Acknowledgements

The authors extend their appreciation to the Deanship of Scientific Research at King Saud University for funding the work through the research group project No. RGP-1438-90.

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Authors and Affiliations

  1. Department of Fisheries, Faculty of Agriculture, University of Rajshahi, Rajshahi, 6205, Bangladesh

    Dalia Khatun, Md. Yeamin Hossain & Fairuz Nawer

  2. Faculty of Fisheries, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, 890-0056, Japan

    Md. Yeamin Hossain & Fairuz Nawer

  3. Department of Botany and Microbiology, College of Science, King Saud University, Riyadh, Kingdom of Saudi Arabia

    Ashraf A. Mostafa & Abdulaziz A. Al-Askar

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  1. Dalia Khatun
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Khatun, D., Hossain, M.Y., Nawer, F. et al. Reproduction of Eutropiichthys vacha (Schilbeidae) in the Ganges River (NW Bangladesh) with special reference to potential influence of climate variability. Environ Sci Pollut Res 26, 10800–10815 (2019). https://doi.org/10.1007/s11356-019-04523-5

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