OCEANOGRAPHY AND WATER QUALITY CONDITION IN SEVERAL WATERS OF THOUSAND ISLANDS AND ITS SUITABILITY FOR WHITE SHRIMP Litopenaeus vannamei CULTURE

Effendi, Irzal; Suprayudi, Muhammad Agus; Nurjaya, I Wayan; Surawidjaja, Enang Harris; Supriyono, Eddy; Zairin, Muhammad; Sukenda, Sukenda

doi:10.29244/jitkt.v8i1.13912

Cited by 6 publications

(4 citation statements)

References 16 publications

(19 reference statements)

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“…The results of current velocity measurements are generally relatively low, especially at station 4 (3-18 cm/s), station 5 (2-14 cm/s), and station 6 (3-14 cm/s) (Table 4). This indicates that the water is relatively calm, similar to the findings of a study by Effendi et al [21] on the sandbar of Panggang Island, Seribu Islands Regency. In their research, the current predominantly flowed southeast-south, with an average speed of 13.5 cm/s and a range between 4.4-19.1 cm/s.…”

Section: Water Quality Around Panggang Islandsupporting

confidence: 89%

Current status of environmental water quality of Kappaphycus alvarezii seaweed cultivation in the Seribu Islands, Indonesia and the concept of sustainable development by using a System Dynamic Model approach

Sujatmiko,

Karnaningroem,

Santoso

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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The aim of this research is to analyze the current status of water quality in seaweed cultivation environments related to the decline in seaweed production. Field research was conducted in the Seribu Islands Regency, DKI Jakarta, during April and May 2023. The analysis of environmental factors encompassed physical, chemical, and biological parameters at 12 designated sampling points. The results of the analysis of water quality parameters generally meet the requirements, except for oil and grease at 7-51 mg/L and nitrate at 1.60-6.3 mg/L, both of which exceed the quality standards for biota. Plankton analysis shows the total abundance of plankton reaches 36 to 9,070 ind/L. Evaluation of the suitability class shows that the waters are in class S (Suitable). The Pollution Index value ranges from 6.51 to 8.05, indicating a fairly polluted status. The high levels of oil and grease, nitrate, and the presence of index pollutants have a significant influence on the decline in seaweed production in the Seribu Islands Regency. The preparation of improvement strategies can be conducted using a System Dynamics Model approach, involving the creation of comprehensive Causal Loop Diagrams. This process considers four key factors: environmental water quality, human resources, technology, and seaweed.

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Section: Water Quality Around Panggang Islandsupporting

confidence: 89%

Current status of environmental water quality of Kappaphycus alvarezii seaweed cultivation in the Seribu Islands, Indonesia and the concept of sustainable development by using a System Dynamic Model approach

Sujatmiko,

Karnaningroem,

Santoso

et al. 2024

IOP Conf. Ser.: Earth Environ. Sci.

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“…Referring to these statements, the water salinity level in this study is quite optimal for hybrid grouper culture (Effendi et al, 2016;Hastari et al, 2017;Prasetyo et al, 2018). Erythrocytes are part of blood components, that are commonly counted for blood profile tests.…”

Section: Discussionmentioning

confidence: 52%

The Health Status of Hybrid Grouper Epinephelus fuscoguttatus (♀) x E. lanceolatus (♂) Cultured in Floating-net Cage at Kelapa Dua Island, Seribu Islands, Indonesia

Borut

Sukenda

Nuryati

et al. 2023

Jurnal Akuakultur Indonesia

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This study aimed to identify the fish health status, based on the total erythrocytes (cells/mm3), total leukocytes (cells/mm3), hemoglobin level (g %), hematocrit, and histopathological profiles. This study was performed on February, 2021 – January, 2022. The study was located in floating-net cage of Kelapa Dua Island, Seribu Islands, Jakarta, Indonesia. Sampling was performed by a purposive-sampling method, environmental parameter measurements, containing temperature and salinity, clinical symptom observation in fish, total erythrocytes, leukocytes, hemoglobin, hematocrit, histopathological profiles of hybrid grouper liver and kidney, and existence of VNN virus. The observation results present the behavior changes in sick fish, namely whirling on the net cage surface, dead-sleeping or death-like condition below the net cage. Hybrid grouper has total erythrocytes of 1.36 x 106 – 5.13 x 106 cells/mm3, total leukocytes of 2.9 x 104 – 7.9 x 104 cells/mm3, hemoglobin level of 5.56 - 10.94 g %, and hematocrit of 13.31 - 24.78 %. From the histopathological observation, hepatocyte, necrosis, vacuolysis was occurred in liver and tubular, leukocyte infiltasi, nicrosis was occurred in kidney and with the highest prevalence of VNN at 20 – 80 %. Therefore, hybrid grouper is sick due to increased number of leukocytes at 5.13 x 106 cells/mm3 above the normal range, followed by decreased hemoglobin and hematocrit levels at 5.56 - 10.94 g % and 13.31 - 24.78 %, respectively, due to organ damage. Keyword: must be written in not more than 5 words and alphabeticaly listed ABSTRAK Penelitian ini bertujuan untuk mengetahui status kesehatan ikan meliputi total eritrosit (sel/mm3), total leukosit (sel/mm3), kadar hemoglobin (gram %) dan hematokrit (%) dan gambaran histopatolgi. Penelitian ini dilaksanakan pada periode bulan Februari 2021 hingga Januari 2022. Lokasi penelitian pada keramba jaring apung (KJA) di Pulau Kelapa Dua Kepulauan Seribu. Metode pengambilan sampel ikan dilakukan secara purposive sampling, pengukuran parameter lingkungan perairan yaitu suhu dan salinitas, pengamatan gajala klinis ikan, perhitungan jumlah eritrosit, leukosit, kadar hemoglobin dan hematokrit serta gambaran histopatologi pada organ hati dan ginjal ikan kerapu cantang dan keberadaan virus VNN. Hasil pengamatan menunjukkan perubahan tingkah laku ikan sakit yaitu berputar ke atas permukaan KJA, terjadi sleeping dead atau ikan berada di dasar seperti mati. Ikan kerapu cantang memiliki jumlah eritrosit 1.36 x 106 – 5.13 x 106 sel/mm3, leukosit 2.9 x 104 – 7.9 x 104 sel/mm3, hemoglobin 5.56 - 10.94 gr %, dan hematokrit 13.31 - 24.78 %, hasil histopalogi ikan mengalami perubahan sel pada hati yaitu hepatosit, vakuolisasi, nekrosis dan ginjal mengalami perubahan infiltrasi leukosit, nicrosis, tubulus dan kehadiran virus VNN tertinggi berkisar 20 % - 80 %. Berdasarkan hasil penelitian tersebut maka dapat disimpulkan bahwa ikan kerapu cantang yang sakit karena jumlah leukosit meningkat 5.13 x 106 sel/mm3 melebihi kisaran normal, kadar hemoglobin menurun 5.56 - 10.94 % dan kadar hematokrit 13.31 - 24.78 % rendah dan terjadi kerusakan jaringan pada organ dalam ikan. Kata kunci: Ikan Kerapu Cantang, Hematology, Histopatologi, Parameter Fisika dan Kimia

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“…The lowest temperatures were found in August in habitats adjacent to the estuary, although relatively narrow. The water temperature affects prawn fishing sites' shift from low depths to deeper parts (Effendi et al 2016). It also happens on several months of data retrieval in areas adjacent mangrove habitat in Yobar, sandy beaches in Lampu Satu, Payum, and mangroves in Bokem.…”

Section: Conditions Of Oceanographic Parameters Based On Habitat Typementioning

confidence: 99%

Density distribution of Penaeus merguensis De Man, 1888 based on habitat in the waters of Merauke District, South Papua Province, Indonesia

LANTANG,

NAJAMUDDIN,

NELWAN

et al. 2023

Biodiversitas

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Abstract. Lantang B, Najamuddin, Nelwan AFP, Samawi MF. 2023. Density distribution of Penaeus merguensis De Man, 1888 based on habitat in the waters of Merauke District, South Papua Province, Indonesia. Biodiversitas 24: 4427-4437. The waters of Merauke District, located in the Arafura Sea area, have relatively hight penaeid resource, but prawn fishing productivity is the lowest of 11th other Indonesian fisheries management areas.. The optimization of the fishery resource utilization remains poor after the moratorium on fishing vessel licensing in 2014, which is only 11%. Hence, a study is needed to determine the resources’ distribution, abundance, and sustainability. This research aims to analyze the density distribution of banana prawn (Penaeus merguensis De Man, 1888) based on the habitat type, each location separated by ~4-5 kilometers within the coastal ecosystem waters of Merauke District. The research was carried out from March to August 2022. Data were collected within each habitat: the catch, prawn fishing equipment, and oceanographic parameters, and then analyses were undertaken using statistical tests. The results showed that the highest density of banana prawn was obtained in shallow waters adjacent to the mangrove habitat at Bokem (32.68 kg/km2) and Yobar (20.27 kg/km2). In waters adjacent to the sandy beach at Payum (17.98 kg/km2), the density was higher than within the estuarine habitat of Maro River (14.60 kg/km2) and adjacent to the sandy beach at Lampu Satu (14.39 kg/km2). This is due to the influx of fresh water in estuarial habitat, sandy beaches in Lampu Satu and Payum, and mangroves in Yobar, resulting in prawn emigration to areas with higher salinity in Bokem mangroves. It is also thought to be associated with increasing turbidity with a similar pattern in salinity and affecting the density of banana prawns.

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OCEANOGRAPHY AND WATER QUALITY CONDITION IN SEVERAL WATERS OF THOUSAND ISLANDS AND ITS SUITABILITY FOR WHITE SHRIMP Litopenaeus vannamei CULTURE

Cited by 6 publications

References 16 publications

Current status of environmental water quality of Kappaphycus alvarezii seaweed cultivation in the Seribu Islands, Indonesia and the concept of sustainable development by using a System Dynamic Model approach

Current status of environmental water quality of Kappaphycus alvarezii seaweed cultivation in the Seribu Islands, Indonesia and the concept of sustainable development by using a System Dynamic Model approach

The Health Status of Hybrid Grouper Epinephelus fuscoguttatus (♀) x E. lanceolatus (♂) Cultured in Floating-net Cage at Kelapa Dua Island, Seribu Islands, Indonesia

Density distribution of Penaeus merguensis De Man, 1888 based on habitat in the waters of Merauke District, South Papua Province, Indonesia

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