scholarly journals KARAKTERISTIKHABITATDANSEBARAN JENIS IKAN DI SUNGAIKAPUAS BAGIAN TENGAHDANHILIR

2017 ◽  
Vol 3 (5) ◽  
pp. 277
Author(s):  
Susilo Adjie ◽  
Agus Djoko Utomo

Sungai Kapuas memiliki keanekaragaman jenis ikan yang tinggi dilaporkan mencapai sekitar 200 spesies. Penelitian ini bertujuan untuk mengetahui karakteristik habitat serta sebaran jenis ikan di Sungai Kapuas bagian tengah dan hilir. Penelitian ini dilakukan pada bulan April, Juli, September, dan Nopember 2006. Parameter yang diamati meliputi kualitas air (suhu, kecerahan, daya hantar listrik, pH, CO2, oksigen terlarut, alkalinitas, BOD, PPO 4, N-NO3, N-NO2, COD, N-NH3, dan salinitas), habitat perairan, serta sebaran jenis ikan. Contoh air diambil dari sembilan stasiun pengamatan yaitu di bagian tengah Tengkidap, Pengembung, Pemerak, Bukit Tekenang, dan Sambar Indah dan di bagian hilir Muara Jungkat, Sungai Raya, Muara Sungai Tayan, dan Semitau, contoh air dianalisis menggunakan American Public Health Association (1986). Hasil pengamatan menunjukkan bahwa karakteristik kualitas air bagian tengah dan hilir relatif sama dan karakteristik habitat Sungai Kapuas bagian tengah merupakan daerah rawa banjiran (flood plain) yang banyak terdapat hutan rawa danmerupakan kawasan konservasi dari Taman Nasional Danau Sentarum. Karakteristik habitat Sungai Kapuas bagian hilir dipengaruhi oleh pasang surut air laut dan merupakan kawasan industri. Jenis ikan yang dijumpai di sepanjang stasiun pengamatan terdapatsekitar 123 jenis, penyebarannya terkonsentrasi di sungai bagian tengah ± 120 jenis yang didominansi oleh ikan Cyprinidae dan Sungai Kapuas bagian hilir ±85 jenis yang didominansi oleh ikan dukang (Arius stomi) dan janggut(Polynemus longipectoralis). Kapuas River has a high diversity of fish species reported to reach about 200 species. This study aimed to characterize the habitat and distribution of fish species in the Kapuas River middle and downstream sections. The study was conducted in April, July, September, and November 2006. The parameters observed included water quality (temperature, brightness, electrical conductivity, pH, CO2, dissolved oxygen, alkalinity, BOD, P-PO4, NNO3, N-NO2, COD, NH3-N, and salinity), and aquatic habitats distribution of fish species. Water samples taken from nine observation stations are in the middle Tengkidap, Pengembung, Pemerak, Bukit Tekenang, and Sambar Indah and in the downstream Muara Jungkat, Sungai Raya, Muara Sungai Tayan, and Semitau, water samples were analyzed using the American Public Health Association (1986). The results showed that characteristics of water quality downstream of the middle and relatively similar, habitat characteristics of the Kapuas River and the middle is a swamp area flood plain that there are still a lot of swamp forest and is a conservation area of the Park Lake Sentarum. Characteristics of the Kapuas River downstream habitats are influenced by tides and is an industrial area. Types of fish that are found along the observation stations are about 123 species, its distribution is concentrated at the center of the ± 120 River dominated by fish species cyprinidae and Kapuas River downstream of ± 85 species dominated by fish dukang (Arius stomi) and janggut (Polynemus longipectoralis).

2020 ◽  
Vol 42 ◽  
pp. e2
Author(s):  
Késia Gomes da SIlva Cavalcanti ◽  
Darlan Ferreira Da Silva ◽  
Neuriane SIlva Lima ◽  
Rita De Cássia Mendonça ◽  
Wallace Ribeiro Nunes Neto ◽  
...  

The Corda river is the main source of fresh water for recreation, leisure, supply and irrigation to the municipality of Barra do Corda - MA. The objective of the present study was to evaluate the physicochemical parameters of Corda river’s water using the methodology described by the American Public Health Association. The water samples were collected in the seasonal period spanning between February and September of the year of 2018. The parameters which were analyzed during the study were pH, conductivity, turbidity, total dissolved solids and salinity, besides concentrations of nitrite, nitrate, and total phosphorus. Three principal components were identified during the PC Analysis. Those components explain more than 74% of the total variance observed during the rainy and dry season. Axis 1and 2 included variables which were related to quality of water and could be affected by the change in seasons. The results indicated that pH (7.11), P (2,82 mg L-1), NO3- (3,23 mg L-1), turbidity (35.82 NTU) and conductivity (35.83 µS/cm) parameters were most affected by changing from rainy to dry season.


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