First biometrics record of bartail flathead, Platycephalus indicus ( ) from the Bay of Bengal, Bangladesh

Ullah, Md. Rahamat; Mredul, Md. Mahamudul Hasan

doi:10.1016/j.heliyon.2022.e11124

Cited by 3 publications

(3 citation statements)

References 33 publications

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“…weight relationships (LWRs) represent pivotal metrics, enabling an exploration of how a fish's weight varies in relation to its length. This relationship serves as a valuable lens through which to assess the overall health and growth patterns of fish population, contributing to our understanding of their ecological dynamics (Yamamoto et al, 2006;Ullah and Mredul, 2022;Manon et al, 2023). LWRs are particularly instrumental for evaluating diverse factors, including nutrition, habitat quality, and the potential impact of environmental stressors on a fish's condition (Froese, 2006).…”

Section: Original Research Articlementioning

confidence: 99%

“…Previous studies have reported instances of positive allometric growth within the Hilsa population, as documented by Flura The variations observed in the exponent 'b' or regression coeffi-cient can be attributed to a multitude of factors, encompassing differences in sampling methodologies, seasonal variations, sample size, and length ranges. Additionally, localities, habitats, sex (Hossain, 2010;Hossen et al, 2017;Ullah and Mredul, 2022), temperature fluctuations, feeding rates, overfishing, and food competition (Tesch, 1971;Rahman et al, 2012) may influence these 'b' values. Furthermore, factors such as fish behavior (active or passive swimming), ecological aspects (availability of forage organisms) (Le Cren, 1951), preservation techniques, disparities in the observed length ranges of captured specimens (Hossain et al, 2012), water flow, maturity levels, stages of maturity, metamorphosis, seasonal effects, gonadal development, growth phases, and trophic potential within rivers and ponds of aquatic organisms (Garcia, 2010;Alam et al, 2012) are recognized as additional influencers on these 'b' values.…”

Section: Length-weight Relationships (Lwrs)mentioning

confidence: 99%

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Length frequency distribution, length-weight relationship and condition factors of Hilsa Shad, Tenualosa ilisha from Bangladesh

Alam,

Ullah,

Flura

et al. 2024

Arch. Agric. Environ. Sci.

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Hilsa shad, Tenualosa ilisha, a cherished and economically vital species, thrives in the waters of Bangladesh. It holds a prominent role in bolstering the nation's food security and influencing the ecological dynamics of aquatic ecosystems along the Bangladeshi coast and estuaries. This comprehensive study encompasses data collection efforts on the Hilsa fish species, conducted at 12 commercial landing centers throughout Bangladesh over the course of 2020. The study describes some fundamental components, including length frequency distribution, length-weight relationships, and condition factors, offers invaluable insights into the growth, health, and overall well-being of Hilsa population. Notably, the length-weight relationship analysis revealed size ranges of 11.5-59.2 cm and 11.0-49.0 cm total length for females and males, respectively. The observed b values indicated positive allometric growth (b > 3.00) for female population and negative allometric growth (b < 3.00) for male population in the length-weight relationship. Among the condition factors scrutinized, Fulton's condition factor emerged as the most reliable indicator for assessing the health and condition of the Hilsa population. This study offers valuable insights for biologists, aiding in the assessment of the species' status and providing essential information for fishery biologists and conservation biologists. Such insights are instrumental in the management and ultimate conservation of this iconic species in Bangladesh.

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Section: Original Research Articlementioning

confidence: 99%

Section: Length-weight Relationships (Lwrs)mentioning

confidence: 99%

Length frequency distribution, length-weight relationship and condition factors of Hilsa Shad, Tenualosa ilisha from Bangladesh

Alam,

Ullah,

Flura

et al. 2024

Arch. Agric. Environ. Sci.

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“…Approximately 740 marine fish species can be found in the Bay of Bengal's waters (Habib andIslam, 2020, Ullah andMredul, 2022). Bangladesh produced 46,21,228 metric tons of fish with 6,81,239 metric tons from marine water accounting for 14.74% of total fish production (DoF, 2022).…”

Section: Introductionmentioning

confidence: 99%

Weight-length, length-length relationships and form factor of three flatfish species from the Bay of Bengal, Bangladesh

Ullah

Mredul²,

Alam

et al. 2022

Arch. Agric. Environ. Sci.

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Biometrics such as weight-length relationships (WLRs), length-length relationships (LLRs), as well as form factor (a3.0) were investigated for three flatfish species, Cynoglossus lingua, Cynoglossus arel, and Brachirus pan which were captured using seines and gill nets between September 2021 and March 2022 from the Bay of Bengal, Bangladesh. The lengths were measured to adjacent 0.1 cm accuracy with a digital caliper and weights to the accuracy of 0.01 g with a digital balance for each individual. The WLRs were accurately adjusted for all species (r2 > 0.9500). Brachirus pan had the lowest b value of 2.9543, whereas C. arel had the highest b value of 3.2924 amongst the three species. For the investigated species of fish, LLRs were also highly significant (r2 > 0.9600, p < 0.01). The estimated form factor values were 0.0023 for B. pan, 0.0026 for C. arel, 0.0027 for C. lingua. New maximum total lengths for C. arel and B. pan have also been recorded. Since there are no weight-length relationships (WLRs), length-length relationships (LLRs), as well as form factor (a3.0) data for these species in Bangladesh; the information supplied here expands the depth of knowledge for these species.

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Biometric indices, growth pattern, and physiological status of captive-reared indigenous Yellowtail brood catfish, Pangasius pangasius (Hamilton, 1822)

Rahman

Manon

Ullah

et al. 2023

Environ Sci Pollut Res

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First biometrics record of bartail flathead, Platycephalus indicus ( ) from the Bay of Bengal, Bangladesh

Cited by 3 publications

References 33 publications

Length frequency distribution, length-weight relationship and condition factors of Hilsa Shad, Tenualosa ilisha from Bangladesh

Length frequency distribution, length-weight relationship and condition factors of Hilsa Shad, Tenualosa ilisha from Bangladesh

Weight-length, length-length relationships and form factor of three flatfish species from the Bay of Bengal, Bangladesh

Biometric indices, growth pattern, and physiological status of captive-reared indigenous Yellowtail brood catfish, Pangasius pangasius (Hamilton, 1822)

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