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All Journal Arwana: Jurnal Ilmiah Program Studi Perairan INTEGRATED OF FISHERIES SCIENCE
Hasan, Fataha Ilyas
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Agriculture, Biological Sciences & Forestry Energy Environmental Science

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Condition and carbon reserves of mangrove ecosystems in East Sorong Distrik, Sorong City Hasan, Fataha Ilyas; Dewi, Ita Junita Puspa; Suyasa, I Nyoman; Tabalessy, Roger R.
Arwana: Jurnal Ilmiah Program Studi Perairan Vol 6 No 2: November 2024
Publisher : Program Studi Akuakultur, Fakultas Pertanian, Universitas Almuslim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51179/jipsbp.v6i2.2960

Abstract

Mangrove is an important coastal ecosystem whose presence influences the productivity of other ecosystems, such as seagrass beds and coral reefs. This study was conducted in the East Sorong District from October 2023 to January 2024, aiming to determine the species, abundance, density, dominance, frequency, importance value, biomass, and carbon storage of mangroves. Samples were taken from three locations using the Point Centered Quarter method. The geographic coordinates of Location I are 0°55'2.1" S and 131°17'35.94" E, Location II at 0°55'22.86" S and 131°17'38.16" E, and Location III at 0°54'57.96" S and 131°18'11.11" E. Materials used in the study included mangrove vegetation, aquades, and tissue. The results showed 104 individual trees from three mangrove species: Rhizophora apiculata (66 trees), Rhizophora mocrunata (17 trees), and Bruguiera gymnorrhiza (21 trees). The total density was 0.0693 ind/m², frequency was 1.433 ind/m², and dominance was 40.581 ind/m². The average importance value index for each species was: Rhizophora apiculata (190.184%), Bruguiera gymnorrhiza (60.607%), and Rhizophora mocrunata (49.209%). The total biomass was 463.11 tons/ha, with carbon content of 217.66 tonsC/ha and CO2 sequestration of 798.82 tonsCO2/ha. Water quality parameters were within the acceptable standards for seawater quality.
Struktur Komunitas Gastropoda Pada Ekosistem Mangrove Di Kelurahan Klamana Distrik Sorong Timur Kota Sorong Hasan, Fataha Ilyas; Widya Yanti, Dwi Indah; Siwabessy, Aldomoro
INTEGRATED OF FISHERIES SCIENCE Vol 1 No 1 (2022): JANUARI-JUNI
Publisher : Lembaga Penelitian dan Pengabdian, Universitas Kristen Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56942/ifs.v1i1.34

Abstract

Ekosistem mangrove merupakan ekosistem pesisir yang memiliki produktifitas, nilai ekonomis, dan nilai ekologis tinggi. Gastropoda merupakan salah satu spesies dari filum Moluska yang paling banyak dijumpai pada ekosistem mangrove dan keberadaanya sangat dipengaruhi faktor – faktor lingkungan (biotik dan abiotik). Penelitian bertujuan untuk mengetahui jenis dan jumlah Gastropoda yang ada pada ekosistem mangrove di Kelurahan Klamana. Parameter air yang diukur meliputi suhu, salinitas, pH tanah, DO (Dissolved Oxygen), pH air dan tipe sendimen. Tenik pengambilan sampel (sampling) menggunakan metode linetransek kuadran Hasil penelitian menunjukan di ekosistem mangrove Kelurahan Klamana ditemukan 9 spesies dari 4 family Gastropoda dan Terebralia sulcata (family Potamididae) yang paling banyak ditemukan dengan 81 individu, serta substrat yang ada pada lokasi pengambilan data yaitu lumpur dan lumpur berkerikil.Analisa struktur yang diukur yaitu Indeks Keanekaragaman ( ),Indek keseragaman (E), Indeks Dominasi (D) dan kepadatan.
Co-Authors Dewi, Ita Junita Puspa Dwi Indah Widya Yanti I Nyoman Suyasa Siwabessy, Aldomoro Tabalessy, Roger R.