Keanekaragaman Jenis Ikan Yang Tertangkap Secara Temporal Pada Perairan Pantai Kota Merauke

Abstract

This study aims to determine the temporal diversity of fish, namely based on the moon phase and tides, the relationship between the moon phase and tides in the coastal waters of Merauke City. This research was conducted in June-August 2020. Determination of sampling points at the research location using purposive random sampling method. Data analysis used was fish species composition, Shannon-Wienner diversity index (H'), uniformity index (E), and dominance index (C). The total fish catch during the study time was 1,151 fish, which were divided into 19 fish species. The thick-lipped catfish (Cinetodus crassilabris) was the most caught species and spread in each station with a total of 298 fish. Based on the tidal period, the highest diversity of 2.23 was obtained during the high tide period and the lowest diversity of 1.89 at low tide. Both were found at Station I and fell into the medium category. The value of the diversity index based on the moon phase, the highest value during the full moon phase with a value of 2.12 and the lowest of 1.78 was found in the last quarter phase, both found at Station I. The uniformity value during high and low tide and based on the moon phase at both stations has a high uniformity category. The highest fish dominance was at low tide at station II with a value of 0.20 while the lowest value was at high tide at station I with a value of 0.14.