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Journal : Bioscientist : Jurnal Ilmiah Biologi

KEMELIMPAHAN IKAN AIR TAWAR DI DESA SUNGAI BAKAR KECAMATAN BAJUIN KABUPATEN TANAH LAUT Almira Ulimaz
Bioscientist : Jurnal Ilmiah Biologi Vol 8, No 1 (2020): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bjib.v8i1.2702

Abstract

Tanah Laut District is a district that brings together mountain highlands with lowlying sea waters within a province in South Kalimantan. It makes the area that is rich in biological natural resources in the form of agricultural products and livestock products such as fish. This natural resource supported by its natural geographical conditions, such as the presence of sea and river in one area. Rivers in this region have biological richness in the form of freshwater fish. Therefore, a study conducted which aimed to describe the abundance of freshwater fish species in Sungai Bakar Village, Bajuin Sub-District, Tanah Laut District. The method used in this research is a descriptive method that is describing the results of research with observation techniques in the form of direct visits to the field. The study area divided into three zones, namely shallow, medium, and deep, with each region consisting of 10 points, collecting samples using a net and fishing line with repetition three times. Data analysis carried out qualitatively and quantitatively. The results showed that the highest or largest fish abundance was Anabas testudineus in zone A (shallow) 39.18%, zone B (medium) 48.92%, and zone C (deep) 42.59%. The lowest fish abundance was zone A (shallow) Clarias batrachus 8.20%, zone B Clarias batrachus (medium) 7.8%, and zone C Oreochromis niloticus, Barbodes gonionotus, and Macrones gulio (deep), with both same abundances at 17.13%.
Keanekaragaman Jenis Ikan Rawa di Kecamatan Upau Kabupaten Tabalong Almira Ulimaz
Bioscientist : Jurnal Ilmiah Biologi Vol 8, No 2 (2020): December
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bjib.v8i2.2781

Abstract

South Kalimantan is the most densely populated province on the island of Borneo. The province which consists of two main geographical features is also rich in natural resources and a diversity of agroecosystems. Apart from the provincial capital, Banjarmasin, other regencies still have abundant nuftah plasma, including the biological wealth in the form of fish. One of the districts that still has natural resources in the form of fish is Tabalong Regency. As a district which is also famous for its abundant mining products in the form of coal and petroleum, of course animal resources in the form of fish are quite valuable assets to be preserved. Therefore, a research was conducted which aims to identify and explain the types of fish that live in the Swamp, Upau District, Tabalong Regency. The method used in this research is the method of observation which is analyzed descriptively. The sample in this study were fish caught by fishing line and nets. The activity using fishing rods is carried out for 30 minutes, and with nets it is carried out 5 tosses at each point at the sampling station. The number of species found was 142 fish consisting of 10 species, 3 orders, and 8 families. The orders found included the orders Perciformes, Cypriiformes, and Siluriformes. The families found included Cyprinidae (Cypriiformes), Channidae, Belontiidae, Anabantidae, Cichlidae (Perciformes), Bagridae, Siluridae, and Claridae (Siluriformes). The index of fish species diversity in Rawa, Upau District, Tabalong Regency is in the "Medium" category, namely 1.987.
Pengaruh Jenis dan Ketebalan Karbon Aktif pada Sistem Constructed Wetlands untuk Pengolahan Limbah Cair Rumah Tangga Anton Kuswoyo; Almira Ulimaz
Bioscientist : Jurnal Ilmiah Biologi Vol 10, No 1 (2022): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v10i1.4436

Abstract

The main environmental problem today is still about pollution. Residential settlements always produce waste, especially household liquid waste. This type of waste is generally in the form of water that is cloudy in color and emits an unpleasant odor. This type of liquid waste is known as greywater. The direct impact of pollution is the contamination of groundwater (wells) and river water by greywater. As a result, the quality of the environment is getting disturbed. Especially in Angsau Village, Pelaihari Sub-district, Tanah Laut Regency, the majority of the population uses well water for bathing and washing toilets (MCK) and cooking. The purpose of this research is to reduce phosphate levels in greywater wastewater more effectively and efficiently. This type of research is a true experiment with a pretest-posttest research design with a control group design. The subject of the research was household liquid waste (greywater) which was taken at random in Angsau Village, Pelaihari District, Tanah Laut Regency, South Kalimantan Province. The study was designed with 6 treatments, namely variations of activated carbon used in two constructed wetlands reactor tanks. The first reactor uses coconut shell activated carbon, and the second reactor uses palm shell activated carbon. The results showed that, the thicker the activated carbon applied to the constructed wetlands reactor system, the lower the phosphate levels in household wastewater (greywater). The highest average percentage value was in the treatment with 15 cm thick activated carbon, and the lowest percentage mean value was in the treatment with 5 cm thick activated carbon. The results also showed that activated carbon from palm shells was more effective in reducing phosphate levels in household wastewater (greywater) compared to the use of activated carbon from coconut shells.