POTENSI KOMUNITAS FITOPLANKTON DALAM MENDUKUNG KOMUNITAS NEKTON DI PERAIRAN LAUT PERCUT KECAMATAN PERCUT SEI TUAN KABUPATEN DELI SERDANG

Simbolon, Riris S (2013) POTENSI KOMUNITAS FITOPLANKTON DALAM MENDUKUNG KOMUNITAS NEKTON DI PERAIRAN LAUT PERCUT KECAMATAN PERCUT SEI TUAN KABUPATEN DELI SERDANG. Undergraduate thesis, UNIMED.

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Abstract

Penelitian ini bertujuan untuk mengetahui keadaan fisika kimia, mengetahui kelimpahan, keanekaragaman,keseragaman, serta dominansi, dan pada akhirnya mengetahui potensi komunitas fitoplankton dalam mendukung komunitas nekton di Perairan Laut Percut Kecamatan Percut Sei Tuan Teknik pengumpulan data yang digunakan adalah teknik observasi karena data diperoleh dari hasil pengamatan secara langsung. Penelitian ini dilakukan selama 3 bulan sejak bulan april sampai juni 2013, dengan pengambilan sampel pada empat stasiun. Stasiun I di daerah pemukiman penduduk, stasiun II di daerah tempat penampungan ikan (TPI), stasiun III di daerah hutan mangrove, dan stasiun IV di daerah laut lepas. Sampel adalah fitoplankton yang berhasil dijaring dengan menggunakan Net Plankton sebanyak tiga kali pengambilan dari tepi kanan, tengah dan tepi kiri. Hasil pengukuran faktor fisika kimia pada Perairan Laut Percut untuk Suhu tertinggi pada stasiun IV (30 0C) dan terendah pada stasiun II (280C), intensitas cahaya tertinggi diperoleh dari stasiun IV (1121 lux) dan terendah pada stasiun II (828 lux), kecerahan paling tinggi terdapat pada stasiun IV (33.6 cm) dan terendah yaitu pada stasiun II (9.2 cm), pH air tertinggi pada stasiun IV ( 7.2) dan terendah pada stasiun I (6.8), oksigen terlarut (DO) tertinggi pada stasiun III (5.6 mg/l) dan terendah pada stasiun I (3.2 mg/l), serta kadar BOD tertinggi stasiun II (4.9 mg/l), dan terendah pada stasiun IV ( 4.2 mg/l). Hasil penelitian menunjukkan bahwa organisme fitoplankton yang ditemukan sebanyak 17 genus yang tergolong kedalam 4 kelas. Total kelimpahan berkisar antara 11 - 152.97 ind/L. Indeks keanekaragaman berkisar antara 1.39

Item Type: Thesis (Undergraduate)
Contributors:
ContributionNameNIDN/NIDK
Thesis advisorSinaga, Tonggo196103251986011003
Call Number: 592 Sim p
Keywords: Komunitas; Fitoplankton; Komunitas Nekton ; Perairan Laut Percut
Subjects: Q Science > QH Natural history > QH301 Biology
Q Science > QK Botany
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam > Biologi
Depositing User: Mrs Desy Sry Yani
Date Deposited: 08 Apr 2016 08:34
URI: http://digilib.unimed.ac.id/id/eprint/12092

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