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All Journal Jurnal Teknologi Perikanan dan Kelautan Jurnal Ilmu dan Teknologi Kelautan Tropis Journal of Marine and Aquatic Sciences ILMU KELAUTAN: Indonesian Journal of Marine Sciences Journal of Applied Geospatial Information International Journal of Remote Sensing and Earth Sciences (IJReSES) Asian Journal of Aquatic Sciences
Yuli Naulita
Departemen Ilmu Dan Teknologi Kelautan, FPIK, IPB University, Bogor
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Engineering Environmental Science Library & Information Science Physics

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Sebaran Suhu Permukaan Laut Teluk Lampung berdasarkan Citra Landsat-8 dan Kaitannya terhadap Indian Ocean Dipole (IOD) Periode Tahun 2013 – 2021 Dema Okgareta; I Wayan Nurjaya; Yuli Naulita; Rastina
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 15 No. 3 (2023): Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jitkt.v15i3.48441

Abstract

Suhu permukaan laut merupakan parameter oseanografi yang penting di perairan lautan karena perubahan suhu air laut dapat mengubah ekosistem perairan. Perairan Teluk Lampung yang berasal dari Samudera Hindia dan Laut Jawa yang melewati Selat Sunda akan dipengaruhi oleh Indian Ocean Dipole (IOD). Penelitian ini bertujuan untuk menganalisis pola sebaran Suhu Permukaan Laut (SPL) antar-tahun secara spasial dan temporal dalam kurun waktu 9 tahun terakhir (2013-2021) serta menganalisis pengaruh fenomena IOD terhadap anomali SPL di Teluk Lampung. Metode yang digunakan adalah metode uji regresi, metode deskriptif dan statistik korelatif. Hasil menunjukkan bahwa nilai SST dari ekstraksi citra Landsat-8 dapat mewakili kondisi SPL in situ dengan uji regresi R2=0,6872. Fenomena IOD memengaruhi pola sebaran SPL perairan Teluk Lampung terlihat pada fase IOD positif (2015, 2018 dan 2019) atau fase IOD negatif (2013 dan 2016) menunjukkan adanya anomali Sea Surface Temperature (SST) perairan Teluk Lampung. Korelasi antara IOD dan SPL di Teluk Lampung memiliki dua hasil yaitu pada perairan terbuka (TL3, TL4, dan TL5) berkorelasi sedang (r>0,7) dan korelasi lemah (r<0,2) pada titik pengamatan TL1 dan TL6 yang merupakan titik dekat dengan daratan.
TENTACLE COMPONENTS (NEMATOCYSTS AND ZOOXANTHELLA) OF Montipora danae in MARAK ISLAND, WEST SUMATERA Lieng, Lieng; Zamani, Nevianty P; Bengen, Dietriech Geoffrey; Naulita, Yuli
Asian Journal of Aquatic Sciences Vol. 7 No. 3 (2024): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.3.398-404

Abstract

Coral animals have tentacles in which there are Nematocysts in the ectoderm layer and zooxanthella in the endoderm layer, and these two components have a role as a defense and food source; this study was conducted to identify the components of Montipora danae coral tentacles. The research was conducted in Marak Island, West Sumatra, with a purposive sampling method based on the presence of M.danae. The coral samples were decalcified to separate the tissue from the skeleton. The results of this study indicate that M.danae consists of Nematocysts type sH (small Holotrich), MpM-I (Microbasic p-Mastighopore I), and H (Holotrich). Holotrich has the highest relative abundance of 74-91%, MpM-I has 3,92-20,63% and sH has 3-24%. Holotrich has larger morphometrics than sH and MpM-I, namely 72,76-82,35 μm capsule length and 19,55-24 μm capsule width. The zooxanthella density of M. danae was lower than that of normal corals at 624 cells/cm2.
Co-Authors Agung Tri Nugroho Agus Atmadipoera Alan Frendy Koropitan Ariane Koch-Larrouy Dema Okgareta Dietriech Geoffrey Bengen Dortje Theodora Silubun Dwiyoga Nugroho I Wayan Nurjaya Indra Jaya Jonson Lumban Gaol Khaldun, Muhammad Hafidz Ibnu La Ode M. Gunawan Giu Lieng, Lieng Nabil Nabil, Nabil NEVIATY PUTRI ZAMANI Nugroho, Dwiyoga Rastina Zamani, Nevianty P