Length-Weight Relationship and Relative Condition Factor of Hilsa ( Tenualosa Ilisha Tenualosa Ilisha ) Fishes in the Bay of Bengal, Bangladesh

The present study describes the associated relationship between the length-weight, sex ratio and related condition factor of Tenualosa ilisha based on the length and weight data collected from the commercial landing station of BFDC, Cox’s Bazar, from January 2019 to December2019. The work was carried out on 866 specimens (307 male and 559 female) ranging from 8.4 to 53.6 cm in length and weight of fishes ranging from 7 to 1977g, respectively. The reproductive attributes of T. ilisha appeared in the sex proportions (M: F=1:2) which revealed the prevalence of females in comparison with males. The external observation was taken into consideration to determine the gender of Hilsa. The relationship of length-weight was fitted with the pooled data for males and females independently of all month-to-month samples which results the BW=0.0104TL 2.9795 (R 2 =0.9636) and BW=0.0019TL 3.4689 (R 2 =0.8461) respectively. The results expressed a higher correlation in between the length-weight (r>0.91). The length wise relative condition factor of T. ilisha was estimated as 1.02, 0.9, 1.05, 1.03, and 1.02 at the length group of 0-20, 21-30, 31-40, 41-50, 51-60 respectively indicating fluctuation of condition factor within the size group. The overall K R for T. ilisha was 0.9-1.22 in which maximum K R was found in July while the minimum was in March. The K R was strongly correlated with TL and BW.

[1]  Md. Akhtarul Islam,et al.  Temporal variations of length, weight, and condition of Hilsa shad, Tenualosa ilisha (Hamilton, 1822) in the Meghna River, Southeastern Bangladesh , 2020 .

[2]  K. Vijayan,et al.  Nutritional profiling of hilsa (Tenualosa ilisha) of different size groups and sensory evaluation of their adults from different riverine systems , 2019, Scientific Reports.

[3]  S. Das,et al.  Season-wise length-weight relationship and relative condition factor of Tenualosa ilisha (Hamilton, 1822) at Narmada estuary, Gujarat, India , 2019 .

[4]  Lily G C Genevier,et al.  Biology and fisheries of Hilsa shad in Bay of Bengal. , 2019, The Science of the total environment.

[5]  J. Jena,et al.  Comparative length-weight relationship and condition factor of hilsa shad Tenualosa ilisha (Hamilton, 1822) from freshwater, estuarine and marine environments in India , 2018, Indian Journal of Fisheries.

[6]  Nibedita Nayak.  Studies on length-weight relationship and condition factor of Hilsa ilisha from Chilika Lake, Odisha , 2017 .

[7]  M. Hossain,et al.  Growth, Condition, Maturity and Mortality of the Gangetic Leaffish Nandus nandus (Hamilton, 1822) in the Ganges River (Northwestern Bangladesh) , 2017 .

[8]  S. Jentoft,et al.  Fishers’ perceptions of the performance of hilsa shad (Tenualosa ilisha) sanctuaries in Bangladesh , 2016 .

[9]  Md. Mosaddequr Rahman,et al.  Life history traits of the flying barb Esomus danricus (Hamilton, 1822) (Cyprinidae) in the Ganges River, northwestern Bangladesh. , 2016 .

[10]  Alam,et al.  Length-weight relationship and GSI of hilsa , Tenualosa ilisha ( hamilton , 1822 ) fishes in Meghna river , Bangladesh , 2015 .

[11]  Sanjeev Kumar,et al.  Length-Weight Relationships And Condition Factors Of Big Eye Hilsa, Ilisha Megaloptera From Estuarine Region Of Diamond Harbour, West Bengal , 2015 .

[12]  Md. Mosaddequr Rahman,et al.  Length‐weight and length‐length relationships and form factor of three threatened fishes from the Ganges River (NW Bangladesh) , 2014 .

[13]  L. Roomiani,et al.  Reproductive biology of Hilsa shad (Tenualosa ilisha) in coastal waters of the Northwest of Persian Gulf. , 2014 .

[14]  Md. Mosaddequr Rahman,et al.  Life history traits of the critically endangered catfish eutropiichthys vacha (Hamilton 1822) in the Jamuna (Brahmaputra River Distributary) River, Northern Bangladesh , 2013 .

[15]  K. Bhatta,et al.  LENGTH WEIGHT RELATIONSHIP AND CONDITION FACTOR OF LIZA MACROLEPIS (SMITH, 1946) IN CHILIKA LAGOON, ODISHA, INDIA , 2013 .

[16]  S. Hazra,et al.  Length Weight Relationship of Four Commercially Important Marine Fishes of Northern Bay of Bengal, West Bengal, India , 2012 .

[17]  S. Jamili,et al.  Population Dynamics and Stock Assessment of Hilsa Shad, Tenualosa ilisha in Iran (Khuzestan Province) , 2011 .

[18]  Anil Sharma,et al.  SIZE DISTRIBUTION, LENGTH-WEIGHT RELATIONSHIP AND SEX RATIO OF HILSA (TENUALOSA ILISHA) IN THE HOOGHLY ESTUARINE SYSTEM , 2011 .

[19]  J. Ragle,et al.  IUCN Red List of Threatened Species , 2010 .

[20]  A. Delgado,et al.  Reproductive biology of yellowfin tuna ( Thunnus albacares) in the Western and Central Indian Ocean. , 2010 .

[21]  J. Swaine,et al.  An Account of the Fishes Found in the River Ganges and Its Branches , 2009 .

[22]  Mohammad Mustafizur Rahman,et al.  Length–weight and length–length relationships of 10 small fish species from the Ganges, Bangladesh , 2009 .

[23]  M. Mortuza,et al.  Notes on Length-Weight Relationship and Condition Factor of Fresh Water Fish, Labeo boga (Hamilton) (Cypriniformes: Cyprinidae) , 2009 .

[24]  I. Aydin,et al.  Length-Weight Relationship for 16 Fish Species From the Eastern Black Sea, Türkiye , 2009 .

[25]  T. Takita,et al.  Reproductive biology of Ilisha elongata (Teleostei: Pristigasteridae) in Ariake Sound, Japan: Implications for estuarine fish conservation in Asia , 2009 .

[26]  A. Rypel,et al.  Empirical Percentile Standard Weight Equation for the Blacktail Redhorse , 2008 .

[27]  Liuxiong Xu,et al.  Reproductive biology of yellowfin tuna T. albacares in the west-central Indian Ocean , 2008 .

[28]  Abubaker Sharif,et al.  Age, Growth and Mortality of Hilsa Shad, Tenualosa ilisha in the River Meghna, Bangladesh , 2008 .

[29]  M. King.  Fisheries Biology, Assessment and Management , 2007 .

[30]  Mazid,et al.  Source and abundance of jatka (juvenile hilsa, Tenualosa ilisha) in the Gajner beel, sujanagar, Pabna. , 2007 .

[31]  I. Cowx,et al.  Lunar periodicity in growth increment formation in otoliths of hilsa shad (Tenualosa ilisha, Clupeidae) in Bangladesh waters , 2006 .

[32]  Rainer Froese,et al.  Cube law, condition factor and weight-length relationships: history, meta-analysis and recommendations , 2006 .

[33]  M. Kulbicki,et al.  A general approach to length-weight relationships for New Caledonian lagoon fishes , 2005 .

[34]  S. Blaber,et al.  Stock Assessment and Management of Tenualosa ilisha in Bangladesh , 2004 .

[35]  K. Stergiou,et al.  Length-weight and length-length relationships of fish species from the Aegean Sea (Greece) , 2002 .

[36]  M. Rahman,et al.  Population Dynamics of Jatka (Juvenile Hilsa) in the Meghna River, Bangladesh , 2000 .

[37]  K. Ahmed,et al.  Length-weight relationships of major carps in Kaptai Lake, Bangladesh , 1996 .

[38]  T. Sathianandan,et al.  The resources of hilsa shad, Hilsa ilisha (Hamilton), along the northeast coast of India , 1992 .

[39]  D. K. De,et al.  AGE, GROWTH, LENGTH-WEIGHT RELATIONSHIP AND RELATIVE CONDITION IN HILSA, TENUALOSA ILISHA (HAMILTON) FROM THE HOOGHLY ESTUARINE SYSTEM , 1990 .

[40]  M. Shimizu,et al.  Meristic and morphometric differences between two types of Hilsa ilisha in Bangladesh waters , 1984 .

[41]  清水 誠,et al.  Comparison of age and growth of two types of Hilsa ilisha in Bangladesh waters. , 1984 .

[42]  R. Saxena.  Studies on the maturity and fecundity of Rita rita (Hamilton) of Ganga river system , 1972 .