Komunitas Ikan Karang pada Rumah Ikan (Fish Apartment) Di Pulau Pagerungan Besar, Kabupaten Sumenep, Madura

Gheadinata, Dimas Raihan Rahmadani Fajri (2023) Komunitas Ikan Karang pada Rumah Ikan (Fish Apartment) Di Pulau Pagerungan Besar, Kabupaten Sumenep, Madura. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Terumbu karang memiliki fungsi sebagai daerah pemijahan, area pengasuhan serta pertumbuhan dan mencari makan bagi ikan sehingga kerusakan terumbu karang di perairan menyebabkan ikan sulit berkembang biak dan berpindah tempat atau mencari habitat baru. Salah satu metode yang saat ini umum digunakan untuk melindungi dan meningkatkan sumberdaya ikan karang adalah melalui pembuatan dan peletakan Fish Apartment (FA); salah satunya telah dilaksanakan di pesisir selatan Pulau Pagerungan Besar, Kecamatan Sapeken, Kabupaten Sumenep pada November 2020. Pemantauan terhadap keberadaan FA perlu dilakukan untuk mengetahui efektivitas ekosistem buatan tersebut sebagai penyedia stok sumberdaya ikan tangkap. Pengamatan ikan dilakukan dengan metode Underwater Visual Census (UVC) yang dimodifikasi pada Juni dan Oktober 2021 serta Juni dan November 2022. Variabel pengamatan adalah komposisi spesies dan kelimpahan ikan karang. Dilakukan pula pengambilan variabel fisik, kimia dan hidro-oseanografi perairan seperti suhu, salinitas, kecerahan, kadar DO dan kecepatan arus. Berdasarkan hasil pengamatan, pada setiap periode selalu terjadi peningkatan kekayaan spesies, kelimpahan dan nilai indeks keanekaragaman ikan yang menunjukan FA sebagai habitat baru terumbu karang berhasil dan stok ikan tangkap meningkat sesuai dengan tujuan penelitian ini dengan nilai kepadatan (300m2) mencapai 200. Spesies target dominan adalah Ctenochaetus striatus dan Scarus rivulatus. Kelompok major species selalu mendominasi komunitas dengan spesies dominan diantaranya adalah Chromis viridis, Apogon spp, Thalassoma lunare, Aeoliscus strigatus dan Mulloidichthys vanicolensis.
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Coral reefs have a function as a spawning ground, nursery ground and feeding ground for fish; therefore, damage to coral reefs will make it difficult to breed and will move to find new habitats. One particular method that is currently commonly used to protect and enhance reef fish resources is through the construction and placement of fish apartments (FA), for example in the south coast of Pagerungan Besar island, Sapeken District, Sumenep Regency in November 2020. Monitoring of the existence of FA needs to be carried out to determine the effectiveness of the artificial ecosystem as a provider of fish resource stocks. Fish observation was carried out using a modified Underwater Visual Census (UVC) technique in June 2021, October 2021, June 2022 and November 2022. Observed variables were species richness and fish abundance. Certain environmental variables were also measured, including temperature, salinity, lucidity, level of DO and current velocity. Based on the observations, the species richness, abundance and value of diversity index tend to increase in each periods showing that the presence of FA is successfully acts as a new habitat and able to increase the fish stocks according to the objectives of this study, and fish stocks increase according to the purpose of this study with a density value (300m2) reaching 200. As for indicator group, the abundance was somewhat similar among species. Major groups always dominate the community, with dominant species such as Chromis viridis, Apogon spp, Thalassoma lunare, Aeoliscus strigatus and Mulloidichthys vanicolensis. For the target group, dominant species including Ctenochaetus striatus dan Scarus rivulatus.

Item Type:	Thesis (Other)
Uncontrolled Keywords:	fish community, Fish Apartment, Pagerungan Besar, komunitas ikan
Subjects:	Q Science > QH Biology Q Science > QH Biology > QH541 Ecology Q Science > QH Biology > QH91.8.S64 Species diversity
Divisions:	Faculty of Science and Data Analytics (SCIENTICS) > Biology > 46201-(S1) Undergraduate Thesis
Depositing User:	Dimas Raihan Rahmadani Fajri Gheadinata
Date Deposited:	28 Aug 2023 07:56
Last Modified:	28 Aug 2023 07:56
URI:	http://repository.its.ac.id/id/eprint/103239

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