Keanekaragaman Plankton di Kawasan Cagar Alam Tlogo Dringo, Dataran Tinggi Dieng, Jawa Tengah
(1) Jurusan Biologi, FMIPA Universitas Negeri Semarang, Indonesia
(2) Jurusan Biologi, FMIPA Universitas Negeri Semarang, Indonesia
(3) Jurusan Biologi, FMIPA Universitas Negeri Semarang, Indonesia
Abstract
Tlogo Dringo merupakan Cagar Alam yang terletak di Desa Pekasiran, Kecamatan Batur, Banjarnegara, Jawa Tengah. Hasil observasi menunjukkan bahwa sangat sedikit fauna yang ditemukan di area Cagar Alam Tlogo Dringo dikarenakan tingginya aktivitas pemanfaatan air. Penelitian ini bertujuan untuk menganalisis keanekaragaman, kelimpahan plankton, dan kondisi perairan di Tlogo Dringo. Penelitian ini adalah penelitian deskriptif. Plankton diambil di sembilan stasiun observasi menggunakan plankton net 25. Pengambil sampel dengan metode komposit dan variasi kedalaman (30 cm dan 6 m). Data yang diperoleh dianalisis secara deskriptif untuk jenis-jenis plankton, parameter fisika kimia perairan, indeks keanekaragaman, indeks dominansi, dan indeks keseragaman plankton. Hasil penelitian menunjukkan bahwa 24 jenis plankton, terdiri dari 17 jenis fitoplankton dan 7 jenis zooplankton dengan kelimpahan total plankton 69.096 ind/L. Parameter fisika kimia perairan dapat mendukung pertumbuhan plankton. Tidak ada jenis plankton yang dominan di Tlogo Dringo.
Tlogo Dringo is a Natural Reserve located in Pekasiran Village, Batur Sub-District, Banjarnegara District, Central Java. Observation showed that very few fauna were found in Tlogo Dringo Natural Reserve area due to the high activity of water utilization. This research aimed to know the diversity and abundance of plankton and water conditions of Tlogo Dringo. This research was a descriptive research. Plankton net 25 was used to collect plankton in nine observation stations, using sample composite method and depth variation method (30 cm and 6 m). The data obtained were analyzed descriptively for plankton types, plankton abundance, chemical physical parameters of water, index of diversity, index of dominance, and plankton uniformity index. The results showed that 24 types of plankton were found in Tlogo Dringo, namely 17 types of phytoplankton and 7 types of zooplankton with a total plankton abundance of 69,906 individuals/Liter. The chemical physical parameters of water support for plankton growth. There was no dominant plankton types in Tlogo Drigo
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