Age, growth and maturity of the Indian Shad, Tenualosa ilisha through otolith examination from different habitats in Bangladesh

Ahmed, Muzahed Uddin; Ahammad, A. K. Shakur; Shahjahan, Md; Rabbi, Md. Fazla; Alam, M. A.; Sakib, Md. Nazmus; Bashar, M. Abul; Rahman, Md. Ataur; Hossain, Md. Yeamin; Mahmud, Yahia

doi:10.21608/ejabf.2020.119368

Cited by 7 publications

(10 citation statements)

References 21 publications

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“…The hierarchy of condition factor (CF) followed as S5 (2.5) > S4 (2.4) > S1 (2.3) > S2 (2.0) > S3 (1.9) (Table S2). The HMs and b values correlated to S1 and S2 sizes (juvenile to pre-adult stages), which corresponds to ≤ 1 year [71,83].…”

Section: Length-weight (L-w) Relationships Of T Ilishamentioning

confidence: 95%

“…[83]. Besides, the T. ilisha specimens in different areas of Bangladesh including the Meghna river estuary ranged from 24.8 ± 5.52 to 45.9 ± 1.14 cm length and 178.3 ± 96.20 to 1378.1 ± 155.51 g body weight, which was determined between <1-6 years [71]. Moreover, the T. ilisha specimens were measured between 14-57 cm and 1-5 y in Kuwait and the T. ilisha ranged from 15-50 cm and <1-5 y in Pakistan, respectively [86,87].…”

Section: L-w Relationships Of the Selected Classes (S1-s5) Of T Ilishamentioning

confidence: 98%

“…The mean length of the 125 T. ilisha specimens from the Padma-Meghna Rivers' confluence ranged from 19.1 to 46.5 cm, mean individual weight ranging from 100.1 to 1200.4 g, corresponding to <1-5 years [71,72].…”

Section: Fish Morphometrymentioning

confidence: 99%

See 2 more Smart Citations

Heavy Metals in the Fish Tenualosa ilisha Hamilton, 1822 in the Padma–Meghna River Confluence: Potential Risks to Public Health

Sarker

Islam

Rahman

et al. 2021

Toxics

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Hilsa shad (Tenulosa ilisha) is Bangladesh’s most important single-species fishery that contributes to 11% of total catch and employment for millions of people. However, heavy metals (HMs) toxicity in the edible organs of T. ilisha and their plausible public health threats have received weak attention. To provide insights on this issue, we determined, using ICP-MS, the concentration of Zn, Cu, Cr (VI), Pb, and Cd in the edible organs of five different sizes of T. ilisha and the surface water collected from the Padma–Meghna River confluence, Chandpur (Bangladesh). Multivariate analysis indicated that T. ilisha gills and liver contained higher HMs than muscle, and the surface water was below the safety limits. The study revealed that only Cr crossed the safety limits and bioaccumulated in the smaller-sized gills and liver. To assess the public health risks, target hazard quotient (THQ), total THQ (TTHQ) and carcinogenic (CR) risks were calculated. Only Cr imposed non-carcinogenic risks to consumers, while TTHQ showed higher chronic health risks. There was no CR risk measured for consumers, except for the largest-sized gills for children. Randomly positive relations between HMs and sizes were found; whereas, consistently positive relations were found among the tissue types. The outcomes of our study may aid policymakers in managing pollutants, especially the Cr sources in the greater Chandpur regions.

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Section: Length-weight (L-w) Relationships Of T Ilishamentioning

confidence: 95%

Section: L-w Relationships Of the Selected Classes (S1-s5) Of T Ilishamentioning

confidence: 98%

See 1 more Smart Citation

Heavy Metals in the Fish Tenualosa ilisha Hamilton, 1822 in the Padma–Meghna River Confluence: Potential Risks to Public Health

Sarker

Islam

Rahman

et al. 2021

Toxics

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“…These parameters were critical in understanding the growth dynamics of G. chapra in the lake ecosystem [24,25]. The slight variations observed in Lα and K values using different methods in the FiSAT II program were addressed, with emphasis placed on the accuracy of the K-scan method in determining asymptotic length [26].…”

Section: Discussionmentioning

confidence: 99%

Population Dynamics of Gudusia chapra (Hamilton, 1822) from Lake Kaptai, Bangladesh

Mondal,

Md. Rashed-Un-Nabi,

Islam

et al. 2024

AJOB

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Aims: This study aimed to assess the population dynamics of Gudusia chapra in Lake Kaptai, Bangladesh, utilizing FiSAT II software for comprehensive analysis. The key objective was to determine growth parameters, mortality rates, exploitation status, and length-weight relationships to inform policy. Study Design: The study employed a quantitative approach, utilizing length frequency data collected from Lake Kaptai. FiSAT II software facilitated the estimation of population dynamics parameters, employing the Von Bertalanffy growth equation and other relevant analyses. Place and Duration of Study: The research was conducted in Lake Kaptai, Bangladesh, focusing on the intricate aquatic ecosystem from November 2003 to October 2004. Data collection and analysis spanned an extensive duration, providing a robust understanding of the population dynamics of G. chapra. Methodology: FiSAT II software was utilized for population dynamics estimation, with a particular focus on growth parameters, mortality rates, and exploitation status using Von Bertalanffy growth equation. Length-weight relationships were also determined. Recruitment patterns were observed, and key indices, including the growth performance index calculated. Results: The estimated asymptotic length (L∞) and growth coefficient (K) of G. chapra were found to be 19.95 cm and 0.89 year-1 respectively. Natural mortality (M), fishing mortality (F) and total mortality (Z) rates were 1.85, 2.21 and 4.06 year-1 respectively. The exploitation rate (E) indicated overfishing, with a value of 0.54, which exceeded the optimum E (E=0.5). The growth performance index (φ´) of 2.54 was recorded, and the recruitment pattern occurred between April and July. Conclusion: The study concludes that G. chapra in Lake Kaptai is experiencing overfishing, as indicated by the elevated exploitation rate. Understanding the growth parameters and mortality rates is vital for sustainable fisheries management in the region. Implication: The findings have significant implications for fisheries management, highlighting the urgent need for measures to mitigate overfishing of G. chapra in Lake Kaptai. Implementing conservation strategies and monitoring recruitment patterns are crucial for ensuring the long-term sustainability of this important fish species.

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“…Mortality parameters are essential to the execution of sustainable management practices for improved conservation (Hossain et al, 2016(Hossain et al, , 2019Ahmed et al, 2020;Saha et al, 2021). Natural mortality is an important component which is used to estimate exploitation ratios of a fish stock in an aquatic habitat.…”

mentioning

confidence: 99%

Comparative study of growth rates, condition factors and natural mortality of Oreochromis niloticus fish from culture fisheries and capture fisheries at Lake Kariba, Zambia

Mauris,

Tamuka,

Lufeyo

et al. 2023

Int. J. Fish. Aquac.

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Age, growth and maturity of the Indian Shad, Tenualosa ilisha through otolith examination from different habitats in Bangladesh

Cited by 7 publications

References 21 publications

Heavy Metals in the Fish Tenualosa ilisha Hamilton, 1822 in the Padma–Meghna River Confluence: Potential Risks to Public Health

Heavy Metals in the Fish Tenualosa ilisha Hamilton, 1822 in the Padma–Meghna River Confluence: Potential Risks to Public Health

Population Dynamics of Gudusia chapra (Hamilton, 1822) from Lake Kaptai, Bangladesh

Comparative study of growth rates, condition factors and natural mortality of Oreochromis niloticus fish from culture fisheries and capture fisheries at Lake Kariba, Zambia

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