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Author
Tarra , Ivanka

Advisor
Ramadhani Eka, Putra, Ph.D
Hendry , Wijayanti, M.Sc

Koleksi
Biologi

Publisher

Plankton merupakan bagian dari komunitas biota perairan yang berperan penting dalam menjaga stabilitas ekosistem akuatik. Keberadaan komunitas plankton di perairan dipengaruhi oleh parameter lingkungan seperti suhu, pH, oksigen terlarut, kecerahan, intensitas cahaya dan nutrien. Penelitian ini bertujuan untuk mengidentifikasi struktur komunitas berdasarkan kedalaman yang telah ditentukan. Penelitian dilakukan pada bulan Februari-April 2021 di Embung C Institut Teknologi Sumatera. Penentuan titik stasiun menggunakan metode purposive sampling. Pengambilan sampel dilakukan secara vertikal pada skala kedalaman 0 cm, 50 cm, 100 cm, 150 cm, 200 cm dan 250 cm. Data yang diperoleh dianalisis kelimpahan, keanekaragaman, dominansi dan kemerataan. Analisis statistik menggunakan Linear mix effect model dan dilanjutkan uji Kruskal-Wallis untuk mengetahui pengaruh parameter lingkungan terhadap struktur komunitas plankton. Total individu dari jenis fitoplankton dan zooplankton tertinggi secara berturut-turut yaitu Trachelomonas sp dan Keratella sp2. Kelimpahan plankton tertinggi berada di kedalaman 50 cm. Indeks keanekaragaman fitoplankton dan zooplankton tertinggi secara berturut-turut berada di kedalaman 50 cm dan 100 cm. Hasil analisis statistik menunjukkan bahwa kelimpahan dan keanekaragaman plankton disetiap kedalaman tidak berbeda nyata. Plankton is a community organism of aquatic that plays an essential role in maintaining the stability of aquatic ecosystems. The existing of plankton communities are influenced by environmental factors such as temperature, pH, dissolved oxygen, transparancy, light intensity and nutrient. The goals of the study to identify the community structure of plakton based on the vertical distribution. The study was conducted from February-April 2021 in Pond C in Institut Teknologi Sumatera (ITERA). Data were provided using purposive sampling and the depth of water column to 0 cm, 50 cm, 100 cm, 150 cm, 200 cm and 250 cm. Data analysis of abundance, diversity, dominance and eveness were provided to asess the the plankton community structure. Statistical analysis of Linear mix effect model and Kruskal-Wallis were used to determine the influence of environmental factor to the plankton community structure Pond C ITERA. Total individuals of the highest types phytoplankton and zooplankton were Trachelomonas sp and Keratella sp2, respectively. The highest abundance of plankton was at a depth of 50 cm. The highest phytoplankton and zooplankton diversity index were at depth 50 cm and 100 cm, respectively. The results of statistical analysis show the abundance and diversity of plankton were not significanly different.

URI
https://repo.itera.ac.id/depan/submission/SB2108270005

Keyword