Measurement and analysis of acoustic backscattering strength for characteristics of seafloor sediment in Indian Ocean WPP 572-573

Fauziyah, Fauziyah; Priatna, Asep; Prakoso, W F; Hidayat, Thomas; Surbakti, Heron; Nurjuliasti, Ellis

doi:10.1088/1755-1315/162/1/012024

Cited by 7 publications

(4 citation statements)

References 14 publications

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“…The waters of Pandeglang District, Banten, Indonesia belong to the fishery management area (WPP) 572 which covers the Indian Ocean, west of Sumatra and the Sunda Strait (Fauziyah et al 2018;Sutiana et al 2018). These waters in the area of the Sunda Strait and the Java Sea and are a component of the circulating water masses of Indonesia.…”

Section: Introductionmentioning

confidence: 99%

Relationship between environmental parameters and the plankton community of the Batuhideung Fishing Grounds,

2018

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Takarina ND, Nurliansyah W, Wardhana W. 2019. Relationship between environmental parameters and the planktoncommunity of the Batuhideung Fishing Grounds, Pandeglang, Banten, Indonesia. Biodiversitas 20: 171-180. Phytoplankton has a roleas primary producers and zooplankton as primary consumers in the marine environments. The composition of the plankton communityis dependent on the physical and chemical characteristics of the waters. The aim of the research described here was to analyze thecommunity structure of plankton in the Batuhideung Fishing Grounds, of Banten in Indonesia, and to relate this structure to the physicalparameters (sea surface temperature, clarity, current velocity) and chemical parameters (salinity, pH, DO, nitrate, phosphate) of its seasurroundings. The research was conducted three times at five observation stations from September to October 2017. Samples ofphytoplankton and zooplankton were taken horizontally using nets with mesh size of 80 μm and 133 μm, respectively. Results showedthat the sea surface temperature ranged from 28.70-30.20C, current velocity 0.10-1.30 m/s, clarity 7-10 m, salinity 30-34 g/L, DO 6.20-8.60 mg/L, pH 8.40-8.59, nitrate concentration 0.49-0.81 mg/L, and phosphate concentration 0.09-0.42 mg/L. There were 37 generafrom 4 classes of phytoplankton. The abundance of Bacillariophyta was 52,734 individuals/L, Myzozoa was 1,315 ind/L, Chyanophytawas 633 ind/L, and Euglenophyta was 200 ind/L. There were 35 genera from 12 classes of zooplankton, dominated by Copepods withabundance 82.1-91.4%. The diversity index of phytoplankton ranged from 1.25-2.02, evenness index ranged from 0.52-0.85, anddominance index ranged from 0.19-0.38. Based on multivariate cluster analysis, there were similar environmental parameters in stations1, 2 and 3, while stations 4 and 5 grouped differently from the other three. Based on Pearson's correlation analysis, current velocity andphosphate were positively correlated to phytoplankton abundance, whereas temperature, transparency, salinity, DO, pH, and nitrate werenegatively correlated, temperature significantly so. Nitrate, phosphate, salinity, DO were positively correlated with zooplanktonabundance but not significantly. Temperature, current velocity, clarity, and pH were negatively correlated with zooplankton abundance,but only with pH did the correlation reach statistical significance.

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Section: Introductionmentioning

confidence: 99%

Relationship between environmental parameters and the plankton community of the Batuhideung Fishing Grounds,

2018

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“…The wet sieving technique was used to determine the size grains of the sediment samples (Haris et al 2015). Substrates texture was analyzed using Shepard's triangular diagram for the samples containing silt, clay, and sand (Costa et al 2013;Ningsih and Supriyadi 2013;Fauziyah et al 2018b).…”

Section: Discussionmentioning

confidence: 99%

Influence of environmental variability on the body condition of the mangrove horseshoe crab Carcinoscorpius rotundicauda from Banyuasin Estuarine, South Sumatra, Indonesia

et al. 2020

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The body conditions indices were useful to determine an individual's well-being, and favorable food availability indicating a good environmental condition. The conditions of the mangrove horseshoe crab (Carcinoscorpius rotundicauda) might be related to several environmental parameters. The study's aim was to analyze the key environmental parameters affecting the body condition of C. rotundicauda found in Banyuasin Estuary Waters. The sampling was conducted in July 2019 in Banyuasin Estuary Waters. The data of weight and prosomal width for C. rotundicauda were used to estimate the body conditions indices (relative condition factor). While the environmental parameters data were recorded for each sampling site. The backward stepwise regression was used to determine the key environmental parameters affecting the body condition indices. The best-fitted model (adjusted R2 = 91.9%; F = 60.102; p < 0.05) indicated several environmental parameters (salinity, pH, seafloor temperature, clay and silt contents) significantly affecting the body condition indices. Changes in the key environmental parameters could generate changes in the availability of favorable food for C. rotundicauda. The result also can be used as baseline data for determining the marine conservation areas as well as horseshoe crab management plan.

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“…A target, such as a school of fish, exposed to sound waves, will produce an echo with backscatter value that identifies the target. The backscatter received is divided into backscatter from a single target, known as target strength (TS), and backscatter from groups of targets, known as volume backscattering strength (SV) (Lubis, 2017;Fauziyah et al, 2018;Pujiyati et al, 2020).…”

Section: Methodsmentioning

confidence: 99%

Utilizing Hydroacoustic Method to Assess Small Pelagic Fish Distribution in Cenderawasih Bay, Indonesia

2024

JFE

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Indonesia has a large fishing ground with rich fishery resources, especially in the Republic of Indonesia Fisheries Management Area (FMA) 717, which includes the waters of Pacific Ocean and Cenderawasih Bay. Fisheries production in the bay was recorded at 48.8 t in 2014, containing around 52 species of fish (Ministry of Maritime Affairs and Fisheries, 2015). The catch at FMA 717 in 2016 showed that 79% of the catch was small pelagic fishes, with the main catch being mackerel scad (Decapterus macarellus) (Suman et al., 2018). According to data from the Ministry of Maritime Affairs and Fisheries of the Republic of Indonesia (2022), FMA 717 has an estimated fisheries potential of 135,140 t with a utilization rate of 0.3, which is still in the not fully utilized category.This utilization rate is still low compared to other FMAs, with rates greater than 0.5. In FMA 717, the utilization rate of small pelagic fish is the second lowest after crabs. Small pelagic fish are a group of species inhabiting the upper 200 m of the ocean. They play an important role in food security in developing countries, such as Indonesia, as they are more affordable than other fish (Sekadende et al., 2020). Increasing the utilization of pelagic fish potential in FMA 717, particularly in Cenderawasih Bay, can be conducted by understanding the distribution of small pelagic fish inhabiting the area. Management must be improved and monitored properly in order to increase the potential to overcome

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Measurement and analysis of acoustic backscattering strength for characteristics of seafloor sediment in Indian Ocean WPP 572-573

Cited by 7 publications

References 14 publications

Relationship between environmental parameters and the plankton community of the Batuhideung Fishing Grounds,

Relationship between environmental parameters and the plankton community of the Batuhideung Fishing Grounds,

Influence of environmental variability on the body condition of the mangrove horseshoe crab Carcinoscorpius rotundicauda from Banyuasin Estuarine, South Sumatra, Indonesia

Utilizing Hydroacoustic Method to Assess Small Pelagic Fish Distribution in Cenderawasih Bay, Indonesia

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