Kajian Kualitas Air Dan Potensi Produksi Sumber Daya Ikan Di Danau Towuti, Sulawesi Selatan

Wijaya, Danu; Samuel, Samuel; Masak, Petrus Rani Pong

doi:10.15578/bawal.2.6.2009.291-297

Cited by 4 publications

(8 citation statements)

References 1 publication

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“…According to Wijaya & Petrus (2009), the content of chlorophyll-a in water bodies can be used as a measure of the standing stock of phytoplankton, which can then be used as an indicator of the primary productivity for the respective water body. The higher chlorophyll-a phytoplankton content observed in a water body, the higher the productivity potential of the water body, which also means that the water body has a higher carrying capacity to support its biotic community (Wijaya et al, 2012). Therefore, based on the data of the chlorophyll-a content, it is possible to estimate the potential for fish production for each lake by using a relationship analysis between chlorophyll-a and fish production.…”

Section: Plankton Abundancementioning

confidence: 99%

“…This fish production is quite low compared to fish production in Lake Kerinci, Jambi Province, which has a eutrophicity rate of 307 kg/ha/year (Samuel et al, 2015). Fish and aquatic organisms need a good habitat to grow and develop so that indirectly if the water quality changes it will affect the production of fish in the lake (Wijaya et al, 2009). Based on research conducted by Edyanto (2006), the fertility level in Aneuk Laot Lake is at the oligotrophic level, which indicates that the waters are still clean and not yet polluted by nutrients.…”

Section: Introductionmentioning

confidence: 99%

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Trophic status analysis and estimation of fish production in Aneuk Laot Lake aquatic resources management, Sabang City

Nurfadillah

Dewiyanti

Rahayu

et al. 2022

Depik

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Aneuk Laot Lake is located in Sabang City, Weh Island, Aceh Province. Changes in water quality can affect the life of aquatic organisms found in Aneuk Laot Lake. The purpose of this research estimates fish production and trophic status for the aquatic resource management of Aneuk Laot Lake, Sabang. This research was conducted in September 2019 in Lake Aneuk Laot using the TRIX, TSI (Trophic State Index) and Nygaard index methods to determine fish production and trophic status. Observation stations were determined using stratified random sampling method and analysis of chlorophyll-a was done using the Trichomatic method. The results showed that the waters of Aneuk Laot Lake can be categorized as eutrophic to hypereutrophic. The estimated value of fish production in Aneuk Laot Lake based on the chlorophyll-a approach is 109.84 kg/ha/year, with a lake area of 61.6 ha. Water quality parameters are still in a state that can be tolerated by aquatic organisms in Aneuk Laot Lake.Keywords:Fish production potential Water qualityTRIX indexBiomass productionWater productivity

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Section: Plankton Abundancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Trophic status analysis and estimation of fish production in Aneuk Laot Lake aquatic resources management, Sabang City

Nurfadillah

Dewiyanti

Rahayu

et al. 2022

Depik

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“…Danau tersebut telah dimanfaatkan masyarakat dalam berbagai sektor salah satunya di sektor perikanan. Danau Batur memiliki luas 16,05 km 2 dengan kedalaman maksimum sekitar 60-70 m serta berada di ketinggian 1.050 m di atas permukaan laut (Wijaya et al, 2012). Pada tahun 2011 perairan Danau Batur yang relatif subur ini memberikan gambaran potensi produksi sebesar 98,56-99,48 kg/ha/tahun, dengan rata-rata sebesar 159 ton/tahun (Suryati dan Samuel, (2012) dalam Diarta et al, (2016)).…”

Section: Pendahuluanunclassified

“…Pada tahun 2011 perairan Danau Batur yang relatif subur ini memberikan gambaran potensi produksi sebesar 98,56-99,48 kg/ha/tahun, dengan rata-rata sebesar 159 ton/tahun (Suryati dan Samuel, (2012) dalam Diarta et al, (2016)). Potensi produksi sumberdaya ikan dapat dihitung berdasarkan kandungan klorofil-a di perairan, berdasarkan asumsi tersebut estimasi potensi produksi sumber daya ikan di Danau Batur menurut (Wijaya et al, 2012) berkisar antara 221,2 -270,3 kg/ha/tahun.…”

Section: Pendahuluanunclassified

Identifikasi Bakteri Patogen Pada Ikan Nila (Oreochromis niloticus) di Danau Batur, Bali

Angreni

Arthana

Suryaningtyas

2018

CTAS

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This research aims to determine types of pathogen bacteria presented in body parts (liver and kidneys) of Tilapia (Oreochromis nilotics), types of bacteria attacks wild Tilapia and fish in Floating Culture Net (FCN) of Batur Lake as well as its prevalence bacteria found in Tilapia on Batur lake. Method used in this research is descriptive method, with a sampling method based on purposive sampling technique. According to identification’s result obtained, types of bacteria that infect liver were including to Aeromonas hydrophila, Plesiomonas shigelloides and Citrobacter freundii bacteria. Meanwhile, bacteria that infect kidneys are Aeromonas hydrophila, Aeromonas caviae, Plesiomonas shigelloides and Citrobacter freundii. Bacteria that infect wild fish are Aeromonas hydrophila, Aeromonas caviae and Plesiomonas shigelloides , while fishes in FCN are infected by Aeromonas hydrophila, Aeromonas caviae, Plesiomonas shigelloides and Citrobacter freundii bacteria. Infection prevalence of pathogen bacteria in Tilapia in Batur Lake is Aeromonas hydrophila at 55,5%, Plesiomonas shigelloides for 27,7%, Aeromonas caviae and Citrobacter freundii at 11,1%. According to sampling location, prevalence of bacteria that attacks wild fish are Aeromonas hydrophila and Plesiomonas shigelloides at 44,4%, Aeromonas caviae for 11,1%. Prevalence of bacteria that attacks fish in FCN is Aeromonas hydrophila for 66,6%, Citrobacter freundii infection at 22,2%, Aeromonas caviae and Citrobacter freundii at 11,1%.

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“…Further, sulphur eruption worsened the situation; thus, the fish belonging to the residents' farm died instantly. 11 After a few days of stopping, sulphur bursts appeared in several locations on Lake Batur. The event was the second burst in a month.…”

Section: Introductionmentioning

confidence: 99%

Sulphur phenomenon in Lake Batur : A Disaster to Local Fisherman

Suputra¹

2021

btj

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Lake Batur provides a perfect area for fisheries. one of the amazing products from lake Batur is Oreochromis mossambicus, or in the local language called Mujair. The fish has a high economic value for the community. However, in 2009, the villager claimed there was a sudden change in the water quality of Lake Batur. Many anglers often lose their fortune because of the sudden dead fish phenomenon. The lake water was no longer as safe as it used to be for both humans and fish. The local community accused sulphur as the cause of their unfortunate. Several studies have been conducted in Lake Batur every year and indicate several sulphur spots near Buahan Village that appear in January, April, or August. Entering July 2021, around 70 fish in floating net cages owned by farmers in the Lake Batur area died. The case in July 2021 was the worst in history. Research on floating net cells mentioned that the public could predict this mass death event to reduce the fishers’ future losses.

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Kajian Kualitas Air Dan Potensi Produksi Sumber Daya Ikan Di Danau Towuti, Sulawesi Selatan

Cited by 4 publications

References 1 publication

Trophic status analysis and estimation of fish production in Aneuk Laot Lake aquatic resources management, Sabang City

Trophic status analysis and estimation of fish production in Aneuk Laot Lake aquatic resources management, Sabang City

Identifikasi Bakteri Patogen Pada Ikan Nila (Oreochromis niloticus) di Danau Batur, Bali

Sulphur phenomenon in Lake Batur : A Disaster to Local Fisherman

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