Electronic Theses and Dissertation

Penelitian keanekaragaman nimfa capung (Odonata) pada alur sungai di Stasiun Penelitian Soraya telah dilaksanakan pada Desember 2023-Juli 2024. Penelitian ini bertujuan untuk mengungkapkan keanekaragaman nimfa capung dan karakter morfologinya yang terdapat pada alur sungai di Stasiun Penelitian Soraya. Penentuan lokasi untuk titik pengoleksian sampel berdasarkan kriteria habitat yang sesuai untuk tumbuh kembang nimfa capung dilakukan dengan metode Purposive Sampling. Pengoleksian nimfa dilakukan menggunakan jaring pada 5 alur dengan masing-masing 10 titik dengan jarak 50 m antar titik. Pengoleksian dilakukan pada dua periode waktu yaitu pagi hari (pukul 08.00-12.00) dan petang (pukul 14.00-17.00). Hasil penelitian diperoleh sebanyak 204 individu, yang terdiri 8 famili dan 29 spesies. Famili yang terkoleksi adalah Aeshnidae, Corduliidae, Gomphidae, Libellulidae, Macromiidae, Calopterygidae, Coenagrionidae, dan Chlorocyphidae. Jumlah jenis terbanyak ditemukan pada famili Gomphidae sebanyak 11 spesies, diikuti famili Libellulidae 4 spesies, Chlorocyphidae 4 spesies, Macromiidae 4 spesies, Aeshnidae dan Coenagrionidae masing-masing 2 spesies, Corduliidae 1 spesies, dan Calopterygidae 1 spesies. Nimfa capung di Stasiun Penelitian Soraya ini memiliki indeks keanekaragaman jenis H’= 2.75, sehingga memiliki nilai indeks keanekaragaman yang tergolong sedang.


Kata Kunci: Nimfa capung, Keanekaragaman, Alur sungai, Stasiun Penelitian Soraya

Research on diversity of dragonfly and damselfly nymph (Odonata) in river streams at Soraya Research Station was carried out in December 2023-July 2024. This research aims to reveal the diversity of odonata nymphs and their morphological characteristics found in the river streams at the Soraya Research Station. The determination of sample collection location was based on habitat criteria that suitable for the growth and development of odonata nymphs, using the purposive sampling method. The collection of nymphs was conducted using nets along 5 streams, with 10 location in each stream, spaced 50 meters apart. The collection was carried out during two time periods which are in the morning (08:00-12:00) and in the afternoon (14:00-17:00). The research results showed that 204 dragonfly nymph individuals were obtained, consisting of 8 families and 29 species. The collected families were Aeshnidae, Corduliidae, Gomphidae, Libellulidae, Macromiidae, Calopterygidae, Coenagrionidae, and Chlorocyphidae. The highest number of species was found in the Gomphidae family, with 11 species, followed by the Libellulidae and Chlorocyphidae families with 4 species each, Macromiidae with 3 species, Aeshnidae and Coenagrionidae 2 species each, Corduliidae 1 species, and Calopterygidae with 1 species. The odonata nymphs at the Soraya Research Station have a species diversity index (H’) of 2.75, indicating a moderate level of species diversity. Keywords: Odonata nymphs, Diversity, Stream, Soraya Research Station