Conservation aquaculture of Ompok bimaculatus (Butter catfish), a near threatened catfish in India

Biswas, Pradyut; Jena, Alok Kumar; Singh, Soibam Khogen

doi:10.1016/j.aaf.2022.04.007

Cited by 9 publications

(6 citation statements)

References 34 publications

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“…The quantity of fish caught in December surpassed that of any other month throughout the study duration. This elevation in catch can be attributed to the successful breeding of fishes and the abundance of available feed during this specific month (Agumassie, 2019;Kuzuhara et al, 2019;Rahman et al, 2022;Biswas et al, 2023). Kar and Chakraborty (2011) documented that Acetees sp, Gobiodies, and Bombay duck are the prevailing species within the ESBN fishery.…”

Section: Discussionmentioning

confidence: 99%

Bio-socio-economic analysis of ESBN fishery of Kattoli coastal area of Chattogram, Bangladesh

Mondal,

Choudhury,

Siddiqui

et al. 2023

Asian J. Med. Biol. Res.

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In consideration of the characteristics inherent to the estuarine ecosystem, the employment of the estuarine set bag net (ESBN) emerges as an effective instrument for the capture of a diverse spectrum of finfish and shellfish species. The present investigation, conducted between May and December 2015 in Kattoli, a representative locality along the Chattogram coast, was undertaken to perform a comprehensive bio-socio-economic analysis of the ESBN fishery. The analysis of the catch composition in Kattoli revealed that finfish constituted 67.67%, shrimp accounted for 24.34%, and crab made up 7.99% of the total catch. The average daily catch per boat in Kattoli was determined to be 25.8 kg. The zenith of the total daily catch per boat, reaching 70 kg, was observed in December, while the nadir occurred in August, when no fishing activities were recorded in Kattoli. The cumulative catch over the study period in Kattoli amounted to 26,664 kg, with a complete absence of fishing in August. Moreover, the average daily catch per fisherman stood at 6.19 kg in Kattoli. In terms of economic considerations, the mean monthly cost per boat in the Kattoli region was approximately 8,750 BDT, while the average monthly sales revenue exceeded 28,695 BDT in Kattoli. Notably, during July and August, a substantial proportion of fishermen were engaged in Hilsa (Tenualosa ilisha) fishing utilizing gill nets, which resulted in a diminished catch with ESBN during these months. Furthermore, the preliminary socio-economic conditions of the study area were also explored. This research offers valuable insights into the bio-socio-economic dimensions of the ESBN fishery in the Kattoli coastal area, with potential practical implications for fisheries management and the livelihoods of the local fishing community. Asian J. Med. Biol. Res. 2023, 9 (4), 114-125

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Section: Discussionmentioning

confidence: 99%

Bio-socio-economic analysis of ESBN fishery of Kattoli coastal area of Chattogram, Bangladesh

Mondal,

Choudhury,

Siddiqui

et al. 2023

Asian J. Med. Biol. Res.

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“…Malnutrition causes a decrease in larval survival, for example, by indirectly decelerating the growth rate, resulting in a longer larval stage and poorer larval activity ability, increasing predators’ opportunities to prey on the larvae. 55 – 57 The diverse feeding regimes have evident consequences on larval development. Larvae receiving rotifers as their initial diet show significantly lower survival rates than those fed copepods.…”

Section: Discussionmentioning

confidence: 99%

Broodstock development, induced spawning and larval rearing of the bilih, Mystacoleucus padangensis (Bleeker, 1852), a vulnerable species, and its potential as a new aquaculture candidate

Syandri,

Azrita,

Thamrin

et al. 2023

F1000Res

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Background: Mystacoleucus padangensis living in Lake Singkarak, Indonesia, has high potential market demand but is threatened by overfishing and has not been successfully cultured. This study describes the first broodstock development, induced breeding, and larval rearing of M. padangensis. Methods: A total of 1,000 female and 1,000 male broodfish were collected from the wild and reared in two concrete ponds (128 m2) at the Centre for Biodiversity Conservation, P.T. Semen Padang, Indonesia. The broodfish were fed commercial feed to satiation at 09:00 and 17:00 h. The females (average weight 7.56 ± 0.85 g) and males (4.86 ± 1.20 g) were selected at a ratio of 1:4 (female:male), and gonad maturation was induced with a single dose of GnRH analogue (Ovaprim) of 0.1 ml/fish. At 16 h after hormone injection, eggs were collected individually into a plastic vessel. Spermatozoa were collected with sterile syringes. Eggs were fertilized using the "dry" method, and 0.5 ml samples (equal to 100 eggs) were taken. The eggs were incubated in a plastic strainer with a water volume of 1.57 litres and placed in a tarpaulin pond with a volume of 150.72 litres. Results: The overall hatching rate was 78.93 ± 4.13%. The newly hatched larvae were 3900.81 µm long, with a yolk sac of 82881.480 µm2. The mouth opened at 72 days post hatching (DPH) with a gape measuring approximately 61.880 µm. The protocol of larval feeding started with artificial feed, followed by Artemia nauplii up to 30 DPH. Weaning of larvae started at 4 DPH. Larvae started metamorphosis by 15 DPH and ended by 22 DPH when the larvae reached 7430.27 µm. Larval rearing resulted in an average survival rate of 28.4 ± 3.04%. Conclusions: Its successful spawning induction and high larval hatching and survival rates make M. padangensis an excellent aquaculture candidate.

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“…Further, the existing management and protection measures should be critically reviewed based on the advanced exploitable conditions and other emerging anthropogenic threats, including non-native species and climate con- programme on upscaling the culture practice of prioritized endemic fishes, including O. bimaculatus, in Tripura. Furthermore, a targeted programme for its promotion and culture in other parts of the country (Northeast India) is underway (Biswas et al, 2022).…”

Section: Status Of Existing Knowledge Gaps Of State Fish Speciesmentioning

confidence: 99%

“…Basudha and Singh (2022) reported limited seed availability of O. belangeri for commercial aquaculture in Indian states except Manipur. Upscaling of a breeding and culture technology through a farmer‐friendly approach is necessary for the mass‐scale commercial seed production and aquaculture expansion for O. belangeri (Basudha & Singh, 2022), O. bimaculatus (Biswas et al, 2022), T. tor , C. magur , and C. chitala (Gopalakrishnan et al, 2011).…”

Section: Status Of Existing Knowledge Gaps Of State Fish Speciesmentioning

confidence: 99%

The concept of “state fishes of India”: Current status, knowledge gaps, and strategic plans for conservation and sustainable utilization

Sarkar,

Kathirvelpandian,

Kantharajan

et al. 2024

Journal of Fish Biology

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The concept of “state fishes of India” highlights the importance and significance of the prioritized fish species distributed across various states within the country. This review article systematically documents the current status of state fishes from various perspectives, identifies the prevailing knowledge gaps, and also highlights the issues and strategic plans essential for the conservation and sustainable utilization of these valuable genetic resources. A total of 8357 publications were checked for the consolidated information on state fish species, and the appropriate items were selected under eight categories: biology, physiology and nutrition, aquaculture, habitat and environmental parameters, genetics and biotechnology, harvest and postharvest, fish health management, and others. The synthesized information was used to present the current status of research and development on state fish species. The knowledge gaps that are to be addressed are also depicted under the perspectives of fisheries management and conservation aquaculture. Based on the findings, strategic plans for the targeted conservation programmes are proposed and discussed under various in situ and ex situ conservation measures. Further, the departmental processes involved in the declaration, the importance of stakeholder involvement, namely, local communities and policymakers, in fostering effective conservation measures, and planning for utilization of these valuable fish genetic resources are also indicated.

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Conservation aquaculture of Ompok bimaculatus (Butter catfish), a near threatened catfish in India

Cited by 9 publications

References 34 publications

Bio-socio-economic analysis of ESBN fishery of Kattoli coastal area of Chattogram, Bangladesh

Bio-socio-economic analysis of ESBN fishery of Kattoli coastal area of Chattogram, Bangladesh

Broodstock development, induced spawning and larval rearing of the bilih, Mystacoleucus padangensis (Bleeker, 1852), a vulnerable species, and its potential as a new aquaculture candidate

The concept of “state fishes of India”: Current status, knowledge gaps, and strategic plans for conservation and sustainable utilization

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