BIOEKOLOGI BARBONYMUS SCHWANENFELDII (BLEEKER,1854) DISUNGAI BARUMUN KABUPATEN LABUHANBATU SELATAN

Nurleli Istiqomah, NPM 1904100091 (2023) BIOEKOLOGI BARBONYMUS SCHWANENFELDII (BLEEKER,1854) DISUNGAI BARUMUN KABUPATEN LABUHANBATU SELATAN. Skripsi thesis, Universitas Labuhanbatu.

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Abstract

The purpose of this study was to find out about the Bioecological study of B. schwanenfeldii (Bleeker, 1854) in Barumun River, South Labuhanbatu Regency, by knowing the size class, weight length relationship, population density, condion factors and Aquatic Chemical Physics factors. This research is an exploratory descriptive research. In this study, the determination of the observation station as a location for fish sampling using the purposive sampling method, fishing gear in the form of nets, 3 times sampling with 3 sampling points. From the results of the study, 55 samples were obtained. The size class B. schwanenfeldii contains a small size class. The size class B. schwanenfeldii contains a small size class. The weight length relationship of B. schwanenfeldii values is negative allometric (b < 3). The population density of B. schwanenfeldii shows that the highest population density is found at Station 3 at 2.1 individuals/m2 and the relative weight factor shows the average value is in the range of 100. Analysis of the condition factor of Fulton < 1 states that the fish look thin. Physical and chemical factors of waters that have been carried out show the following results: Temperature 26 – 28 cmC. Water depth 188 – 144 cm. Current speed 0.02 - 0.04 m/s. Brightness ranges from 35 – 56 cm. Turbidity 43.80 – 176.40 NTU. TSS 20.00 – 100.00 mg/L. The pH of the water is at 7.21 – 8.02. DO 4,47 – 7,25 mg/L. COD 12.44 – 25.16 mg/L. Phosphate <0.003 mg/L and Nitrate 2.28 – 2.74 mg/L. Keywords : Bioecology, Barbonymus Schwanenfeldii, Barumun River. ==================================================== Tujuan penelitian ini adalah untuk mengetahui tentang kajian Bioekologi B. Schwanenfeldii (Bleeker 1854), di Sungai Barumun Kabupaten Labuhanbatu Selatan, dengan mengetahui kelas ukuran, hubungan panjang berat, kepadatan populasi, faktor kondisi dan faktor Fisika Kimia Perairan. Penelitian ini merupakan penelitian deskriptif eksploratif. Pada penelitian ini penentuan stasiun pengamatan sebagai lokasi pengambilan sampling ikan menggunakan metode purposive sampling, alat tangkap berupa jaring. Pengambilan sampling 3 kali dengan 3 titik sampling. Dari hasil penelitian diperoleh sample sebanyak 55 ekor. Kelas ukuran B. schwanenfeldii terdapat kelas ukuran ukurun kecil. Hubungan panjang berat B. schwanenfeldii nilai bersifat allometrik negatif (b < 3). Kepadatan populasi B. schwanenfeldii menunjukan bahwa kepadatan populasi tertinggi terdapat pada Stasiun 3 yaitu 2,1 individu/m2 dan Faktor berat relatif menunjukan nilai rata-rata berada dikisaran 100. Analisis faktor kondisi fulton < 1 menyatakan bahwa ikan terlihat kurus. Faktor fisika dan kimia perairan yang telah dilakukan menunjukan hasil sebagai berikut : Suhu 26 - 28C. Kedalaman air 188 - 144 cm. Kecepatan arus 0,02 - 0,04 m/s. Kecerahan berkisar 35 – 56 cm. Kekeruhan 43,80 - 176,40 NTU. TSS 20,00 -100,00 mg/L. pH air berada diangka 7,21 – 8,02. DO 4,47 – 7,25 mg/L. COD 12,44 -25,16 mg/L. Fosfat <0.003 mg/L dan Nitrat 2,28 – 2,74 mg/L. Kata kunci : Bioekologi, Barbonymus schwanenfeldii, Sungai Barumun.

Item Type:	Thesis (Skripsi)
Uncontrolled Keywords:	Bioecology, Barbonymus Schwanenfeldii, Barumun River. ========================== Bioekologi, Barbonymus schwanenfeldii, Sungai Barumun.
Subjects:	Q Science > QH Natural history > QH301 Biology
Divisions:	Fakultas keguruan dan Ilmu Pendidikan > Pendidikan Biologi
Depositing User:	Unnamed user with email repository@ulb.ac.id
Date Deposited:	27 Sep 2023 07:56
Last Modified:	27 Sep 2023 07:56
URI:	http://repository.ulb.ac.id/id/eprint/306

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