Electronic Theses and Dissertation

Penelitian ini bertujuan untuk menginventarisasi keanekaragaman jenis ikan yang terdapat di kawasan estuaria Krueng Aceh, Gampong Jawa, Kecamatan Kutaraja, Banda Aceh. Pengambilan sampel dilakukan pada bulan Agustus hingga September 2025 di lima stasiun pengamatan yang mewakili zona berbeda di sepanjang estuaria, menggunakan metode eksploratif dengan teknik purposive sampling. Penangkapan ikan dilakukan menggunakan jaring insang (gill net), jala, dan pancing, sedangkan parameter lingkungan yang diukur meliputi suhu, salinitas, oksigen terlarut (DO), dan pH. Hasil penelitian menunjukkan bahwa di kawasan estuaria Krueng Aceh ditemukan 21 spesies ikan yang tergolong ke dalam 18 famili, yaitu Ambassidae, Carangidae, Chanidae, Diodontidae, Engraulidae, Gerreidae, Gobiidae, Haemulidae, Latidae, Leiognathidae, Lutjanidae, Megalopidae, Mugilidae, Scatophagidae, Scombridae, Serranidae, Siganidae, dan Terapontidae. Spesies ikan yang paling banyak ditemukan pada famili Leiognathidae yaitu Karalla daura dan Nuchequula gerroides. Indeks keanekaragaman jenis ikan menunjukkan bahwa secara keseluruhan diperoleh nilai (H’= 2,92), keanekaragaman tergolong dalam kategori sedang. Kisaran nilai kualitas air yang diperoleh yaitu suhu 29–30,3°C, salinitas berada antara 19,6–30 ppt, oksigen terlarut berada 5,5–7 mg/L, dan pH berkisar antara 7-7,8 yang menunjukkan kondisi lingkungan masih sesuai untuk mendukung kehidupan biota estuaria.

Kata kunci: Banda Aceh, estuaria, Gampong Jawa, ikan, inventarisasi jenis, Krueng Aceh

This study aims to inventory the diversity of fish species in the Krueng Aceh estuarine area, Gampong Jawa, Kutaraja District, Banda Aceh. Sampling was conducted from August to September 2025 across five observation stations representing different zones along the estuary, utilizing an exploratory method with a purposive sampling technique. Fish sampling was performed using gill nets, cast nets, and handlines, while the measured environmental parameters included temperature, salinity, dissolved oxygen (DO), and pH. The results showed that 21 fish species belonging to 18 families were identified in the Krueng Aceh estuary, namely Ambassidae, Carangidae, Chanidae, Diodontidae, Engraulidae, Gerreidae, Gobiidae, Haemulidae, Latidae, Leiognathidae, Lutjanidae, Megalopidae, Mugilidae, Scatophagidae, Scombridae, Serranidae, Siganidae, and Terapontidae. The most abundant species belonged to the family Leiognathidae, specifically Karalla daura and Nuchequula gerroides. The fish species diversity index overall reached a value of H′=2.92, indicating a moderate level of diversity. The recorded water quality parameters ranged from 29 to 30.3°C for temperature, 19.6 to 30 ppt for salinity, 5.5 to 7 mg/L for dissolved oxygen, and 7 to 7.8 for pH, suggesting that the environmental conditions remain suitable to support the life of estuarine biota. . Keywords: Banda Aceh, estuary, Gampong Jawa, fish, species inventory, Krueng Aceh