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All Journal Torani Journal of Fisheries and Marine Science Jurnal Sains dan Teknologi
Dewi Yanuarita, Dewi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT Economics, Econometrics & Finance Education Environmental Science Social Sciences

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STRUKTUR KOMUNITAS MANGROVEDI KABUPATEN MUNA Rahman, Rahman; Yanuarita, Dewi; Nurdin, Nardiati
Torani Journal of Fisheries and Marine Science Vol. 24 No. 2 (2014)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.149 KB) | DOI: 10.35911/torani.v24i2.226

Abstract

Mangrove ecosystem in Muna Regency,includingKembarMaminasa village, has been started to be exploited bythe local community. Unfortunately information about mangrove status and their condition are still negligible.The result of this study is useful to provide basic information for sustainable management of mangroveecosystems. A study of mangrove community structure was conducted at the Tembe River inKembar Maminasavillage, from September to November 2013. Mangrove community structure was analyzed using non-metricmultidimensional scaling technique and Bray-Curtis cluster analysis, while the most contributed species todifference of fish community structure was analyzed using SIMPER (similarity of percentages) procedure. Thedifference between the community structure in three different substrates(muddy, mud-sandy, sand-muddy) wasanalyzed using ANOSIM. All the statistics analysis were carried out using PRIMER v6 software.The results ofthe study showed that there were seven species found in the Desa Kembar Maminasa and they tended todistribute differently among three different substrate, creating three slightly different zones of mangrove fromseaward to landward. The community structure of the mangrove trees were different among the three differentsubstrates. Similar results were found in community structure of mangrove saplings and mangrove seedlings. Key words: District Muna, community structure of mangrove, mangrove tree, mangrove saplings, mangroveseedlings. 
HUBUNGAN KANDUNGAN NITRAT DAN FOSFAT PERAIRAN TERHADAP DENSITAS ZOOXHANTELLAE PADA POLIP KARANG ACROPORA LOISETTEAE YANG DITRANSPLANTASIKAN DI PERAIRAN KABUPATEN BONE suryadi, lalu penta febri; Haris, Abdul; Yanuarita, Dewi
JST (Jurnal Sains dan Teknologi) Vol. 11 No. 2 (2022)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (527.015 KB) | DOI: 10.23887/jstundiksha.v11i2.50537

Abstract

Aktivitas pembangunan yang padat di wilayah pesisir menyebabkan semakin meningkatnya ancaman terhadap kerusakan ekosistem terumbu karang. Hal tersebut dikarenakan tingginya potensi pemanfaatan ekosistem terumbu karang yang terjadi secara berlebihan sehingga terjadi kerusakan yang parah. Tingginya nitrat dan fosfat perairan dapat menyebabkan turunnya densitas zooxhantellae. Nitrat dan fosfat di perairan dapat berpengaruh buruk terhadap zooxhantellae. Penelitian ini bertujuan untuk menganalisis kadar nitrat dan fosfat perairan berpengaruh terhadap densitas zooxhantellae pada polip karang yang ditransplantasikan di perairan terumbu karang. Penelitian dilakukan selama 3 bulan. Metode transplantasi yang akan digunakan adalah metode jaring rangka dan substrat. Teknik analisis menggunakan analisa korelasi dilakukan dengan bantuan software IBM SPSS seri 27. Hasil penelitian menunjukkan adanya fluktuasi nilai nitrat, fospat dan zooxhantella tiap pengambilan data. Kadar nitrat cenderung naik tiap waktunya, sedangkan kadar fosfat mengalami kenaikan pada T.2 kemudian turun lagi pada T.3 dan densitas zooxhantellae  mengalami tren menurun. Uji korelasi menunjukkan jika tidak ada korelasi antara kadar nitrat perairan dengan densitas zooxhantella, hal yang sama terjadi pada uji korelasi antara fosfat dan densitas zooxhantellae. Kedua nilai korelasi negatif yang artinya peningkatan nitrat dan fosfat akan berpengaruh terhadap penurunan densitas zooxhantella.
Co-Authors Abdul Haris Nardiati Nurdin, Nardiati Rahman Rahman suryadi, lalu penta febri