Stock status of ark clams (<i>Anadara spp.</i>) based on dredge fishing of the east coast of Surabaya, Indonesia

Dewi, N N; Pursetyo, Kustiawan Tri; Darmono, O P; Fachri, F R; Puspitasari, Findya; Damora, Adrian

doi:10.1088/1755-1315/236/1/012039

Cited by 3 publications

(3 citation statements)

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“…According to Widodo and Suadi (as cited in Dewi et al, 2019), the indication of overfishing can be identified by decreasing fishing size. In parallel with these arguments, our finding also shows significant differences in the distribution of sea urchin test.…”

Section: Test Diametermentioning

confidence: 99%

“…Those indications are very strongly indicated the overexploitation. According to Widodo and Suadi [as cited in Dewi et al 2019], the characteristics of overfished are the time taken to go out to sea being longer, the fishing locations tending to be distant, the productivity or catch per unit effort tending to decrease, the size of the target fish is getting smaller, and the cost of the catching operations increasing.…”

Section: Introductionmentioning

confidence: 99%

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Impact of overfishing on density and test-diameter size of the sea urchinTripneustes gratillaat Wakatobi Archipelago, south-eastern Sulawesi, Indonesia

Nane

2019

Preprint

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Sea urchin Tripneustes gratilla is one of an economic important fisheries resources product for localities at Wakatobi archipelago. High demands for sea urchin gonad have intensified high fishing activity. We hypothesize that sea urchins at Wakatobi have overfished. To answer that hypothesizes; we measure the density and its test diameter size at two different sites. They are Pulau Tomia (inhabited area) and Pulau Sawa (uninhabited area and very distant from the localities). The results show that sea urchin density and its test diameter is significantly different. The densities (mean ± SE) Tripneustes gratilla at Pulau Sawa and Pulau Tomia are 10 ± 0.6 (ind./ m 2 ) and 2.7 ± 0.9 ind./m 2 , respectively. Moreover, the test diameter at Pulau Sawa and Pulau Tomia are 69.7 ± 2.1 mm (mean ± SE), and 58.5 ± 1.7 mm (mean ± SE), respectively. These results have indeed shown that overfishing has occurred. Therefore, sea urchin with test diameter 66-75 mm, 76-85 mm, and 86-95 mm have disappeared at Pulau Tomia. Our conclusion reveals that fishing of sea urchin Tripneustes gratilla at Pulau Tomia has overfished.

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Section: Test Diametermentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Impact of overfishing on density and test-diameter size of the sea urchinTripneustes gratillaat Wakatobi Archipelago, south-eastern Sulawesi, Indonesia

Nane

2019

Preprint

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“…If the production of fishery products has reached the Maximum Sustainable Yield value, the level of production per unit will decrease [6]. If over exploitation has been carried out, fish production will decrease and result in a decrease in fishermen's income [7,8]. Based on data from the Ecosystem Approach to Fisheries Management (EAFM) listed in KEPMEN 50/2017, the stock status of demersal fish resources in WPP-NRI 712 is moderate.…”

Section: Introductionmentioning

confidence: 99%

The Effectiveness of Regulation of the Minister of Marine and Fisheries Number 2 of 2015 Concerning the Utilization of Demersal Fish Landed at PPN Brondong, Lamongan

Jannah,

Perdanawati,

Fahmi

2023

IOP Conf. Ser.: Earth Environ. Sci.

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The Nusantara Fishing Port of Brondong in Lamongan, is one of the largest fishing bases in East Java. Types of fish caught by fishermen are dominated by Nemipterus japonicus, Upeneus moluccensis, and Gerres oyena. The purpose of this study was to determine the utilization rate of demersal fish landed at PPN Brondong, Lamongan. This research was conducted using quantitative and descriptive statistical methods. Maximum sustainable yield analysis uses the production surplus model from Schaefer (1954). Based on the model of Schaefer (1954) demersal fish are stated in a fully exploited to over exploited condition. Analysis of the Schaefer model (1954) found the Fmsy value of 12,457 trips, the Cmsy value of 25,216 tons and the allowable catch of 20,173 tons. PERMEN KP Number 2 of 2015 in terms of response effectiveness according to respondents obtained a value of 52%. Based on research, the issuance of PERMEN KP Number 2 of 2015 was not effective on the level of utilization of demersal fish landed at Nusantara Fishing Port of Brondong, Lamongan.

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Management Reference Points for Sedentary Shellfish Fisheries

Cadrin

2024

Journal of Shellfish Research

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Stock status of ark clams (Anadara spp.) based on dredge fishing of the east coast of Surabaya, Indonesia

Cited by 3 publications

References 1 publication

Impact of overfishing on density and test-diameter size of the sea urchinTripneustes gratillaat Wakatobi Archipelago, south-eastern Sulawesi, Indonesia

Impact of overfishing on density and test-diameter size of the sea urchinTripneustes gratillaat Wakatobi Archipelago, south-eastern Sulawesi, Indonesia

The Effectiveness of Regulation of the Minister of Marine and Fisheries Number 2 of 2015 Concerning the Utilization of Demersal Fish Landed at PPN Brondong, Lamongan

Management Reference Points for Sedentary Shellfish Fisheries

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