Economic impact of juvenile fishing in a tropical multi-gear multi-species fishery

Najmudeen, T M; Sathiadhas, R

doi:10.1016/j.fishres.2008.02.001

Cited by 28 publications

(25 citation statements)

References 16 publications

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“…However, both groups caught significant numbers of juveniles, with locally illegal gears such as fyke nets and trawl's resulting in the highest juvenile catch. This could potentially contribute to the detriment of adult species recruitment and future economic loss for the region (Najmudeen and Sathiadhas, 2008) through growth overfishing. Reflective of the issues of exploitation for fisheries sustainability, in this sense, it is somewhat difficult to label this fishery which incorporates elements of growth, recruitment and ecosystem overfishing, as well as classical and Malthusian overfishing (Pauly and Chua, 1988;Pauly, 1994).…”

Section: Discussionmentioning

confidence: 99%

Conservation Concerns of Small-Scale Fisheries: By-Catch Impacts of a Shrimp and Finfish Fishery in a Sri Lankan Lagoon

et al. 2018

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By-catch is considered a significant problem in large-scale fisheries yet in small-scale fisheries (SSF), employing >99% of the world's fishers, there is limited quantitative understanding of by-catch, and catches in general. We provide an assessment of by-catch from fishing gears (fyke, trawl, set trammel, and drift trammel nets) commonly used in small-scale fisheries across the globe, using a representative Sri Lankan case study and placing this in the context of local resource use patterns. We reveal evidence of how SSF generate significant finfish by-catch with potentially significant ecological impacts. Fishers targeting shrimp (fyke, trawl, and drift trammel nets) caught more non-target species than global averages (44, 44, and 67% by weight, respectively). Fishers targeting finfish (set trammel nets) caught fewer non-target species. We found that by-catch depends more on target species and gear type, supporting suggestions that SSF are not "inherently more sustainable" than their large-scale counterparts and a collective effort is required for an improved understanding of the impacts of SSF. This study highlights an additional issue of valuable food fish discards, raising questions about fisheries exploitation in the context of food security in areas where poverty and food insecurity are prevalent.

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Section: Discussionmentioning

confidence: 99%

Conservation Concerns of Small-Scale Fisheries: By-Catch Impacts of a Shrimp and Finfish Fishery in a Sri Lankan Lagoon

et al. 2018

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“…Catch before maturity refers to the percentage of fish caught that are smaller or younger than the size or age of maturity. Multi-gear multi-species nature of Indian marine fisheries is facing a severe impact of juvenile fishing, where intra-and inter-sectoral conflicts exist [38].…”

Section: Validation Of Rapfish Sustainability Indicators Using Analytmentioning

confidence: 99%

Validating RAPFISH sustainability indicators: Focus on multi-disciplinary aspects of Indian marine fisheries

Adiga¹,

Ananthan²,

Ramasubramanian³

et al. 2015

Marine Policy

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“…In open access marine fisheries, the non targeted catches in the form of juvenile are detrimental, as this would reduce future yield and subsequent recruitment to the fishery The proliferating impact of juvenile fishing is much more intense in multi-gear and multi species fishery where intra and inter sectoral conflicts exists (Najmudeen and Sathiadhas, 2008). Growth overfishing occurs when the fishery targets fishes of a size below the optimal harvestable size (Diamond et al, 1999).…”

Section: Introductionmentioning

confidence: 99%

Economic loss assessment on juvenile fish catch due to forced non-selectivity in a selective fishing gear, gillnet along Mumbai coast, India

Dar

Thomas

Chakraborty

et al. 2015

JANS

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Abstract:A study on quantity and value of juvenile fish landings was carried out in the gillnet fishery of three selected landing centers along Mumbai coast viz., Versova, Cuff Parade and Mahim in India using Out board motors (OBM), Inboard motors (IBM) and non-motorised gillnetters respectively. The data on the quantity and value of landed juveniles were collected and analysed to reach a consensus on the gross economic loss on account of juvenile fishing. A bio-economic model was used to estimate economic loss due to juvenile fishing of 18 commercially important species of finfish and shellfish. A huge economic loss was recorded due to fishing of juveniles of 18 species by three different gillnet sectors. The analysis indicated that IBM gillnetters at Cuff Parade incurred maximum loss of Rs. 62.26 crores with major contribution from juveniles of seerfish followed by non-motorised gillnetter (Rs.29.98 crores) at Mahim and 25.33 crores in OBM gillnetters at Versova.

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Economic impact of juvenile fishing in a tropical multi-gear multi-species fishery

Cited by 28 publications

References 16 publications

Conservation Concerns of Small-Scale Fisheries: By-Catch Impacts of a Shrimp and Finfish Fishery in a Sri Lankan Lagoon

Conservation Concerns of Small-Scale Fisheries: By-Catch Impacts of a Shrimp and Finfish Fishery in a Sri Lankan Lagoon

Validating RAPFISH sustainability indicators: Focus on multi-disciplinary aspects of Indian marine fisheries

Economic loss assessment on juvenile fish catch due to forced non-selectivity in a selective fishing gear, gillnet along Mumbai coast, India

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