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Pola Arus Dan Sebaran Klorofil-a Di Perairan Laut Flores Pada Tahun 2021 Rosalina, Dwi; Rizkiah, Rizal; Wardono, Suko; Sutrisno, Bagus Oktori; Ismail, R. Moh; Leilani, Ani; Amiluddin, Muchtar
Jurnal Kelautan Vol 17, No 3: Desember (2024)
Publisher : Department of Marine Sciences, Trunojoyo University of Madura, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/jk.v17i3.25907

ABSTRAKPola arus dan sebaran klorofil-a merupakan salah satu parameter terpenting dalam perairan untuk memahami dinamika ekosistem laut dan mendukung berbagai aktivitas terkait pemanfaatan sumber daya kelautan. Tujuan penelitian untuk mengetahui konsentrasi sebaran klorofil-a dan pola arus pada perairan Laut Flores tiap musimnya.Penelitian dilakukan pada bulan Agustus sampai Oktober 2023 di Laboratorium Inderaja, Fakultas Ilmu Kelautan dan Perikanan Universitas Hasanuddin Makassar, Kota Makassar, Provinsi Sulawesi Selatan. Data yang digunakan adalah data bulanan selama satu tahun yang diambil dari satelit Aqua MODIS (Moderate Resolution Imaging Spectroradiometer) adalah data klorofil, sedangkan untuk data arus diambil dari Marine Copernicus. Hasil dari penelitian ini adalah Konsentrasi sebaran klorofil-a di perairan Laut Flores pada tahun 2021 menunjukkan bahwa sebaran klorofil-a sangat bervariasi sesuai dengan musimnya. Konsentrasi klorofil-a tertinggi terjadi pada musim peralihan I dan terendah terjadi pada musim peralihan II. Arus di perairan laut Flores kecepatan tertinggi terjadi pada musim barat dan terendah terjadi pada musim timur. Arus juga berpengaruh terhadap penyebaran nutrien dan fitoplankton yang mempengaruhi kesuburan dan produktivitas primer perairan. Adanya arus yang merupakan salah satu oseonografi menyebabkan nutrien dan klorofil-a akan mengalami persebaran sesuai dengan pergerakan massa air yang mempengaruhi. Kata kunci: Pola arus dan sebaran klorofil-aABSTRACTCurrent patterns and distribution of chlorophyll-a are one of the most important parameters in waters to understand the dynamics of marine ecosystems and support various activities related to the utilization of marine resources. The purpose of this study was to determine the concentration of chlorophyll-a distribution and current patterns in the Flores Sea waters each season. The study was conducted from August to October 2023 at the Inderaja Laboratory, Faculty of Marine Sciences and Fisheries, Hasanuddin University, Makassar City, South Sulawesi Province. The data used were monthly data for one year taken from the Aqua MODIS (Moderate Resolution Imaging Spectroradiometer) satellite, chlorophyll data, while current data was taken from Marine Copernicus. The results of this study are the concentration of chlorophyll-a distribution in the Flores Sea waters in 2021 showing that the distribution of chlorophyll-a varies greatly according to the season. The highest concentration of chlorophyll-a occurs in the transition season I and the lowest occurs in the transition season II. The current in the Flores Sea waters has the highest speed in the west season and the lowest in the east season. Currents also affect the distribution of nutrients and phytoplankton that affect the fertility and primary productivity of waters. The presence of currents which are one of the oceanographies causes nutrients and chlorophyll-a to experience distribution according to the movement of the water mass that affects it.Keywords: Current patterns and distribution of chlorophyll-a

Assessing changes in the mangrove ecosystem land area of Tanakeke Island, Takalar Regency, using Landsat 8 imagery Rosalina, Dwi; Rombe, Katarina Hesty; Arafat, Yasser; Jamil, Khairul; Hawati, Hawati; Sabilah, Anisa Aulia; Warni, Warni; Leilani, Ani; Ruzuqi, Rezza; Sari, Suci Puspita; Utami, Eva
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.33697

Rewataya Village is situated on Tanakeke Island, within the Takalar Regency. Despite its significance, previous studies have not addressed the mapping of changes in mangrove land area within this locale. The present research aimed to fill this gap by assessing alterations in mangrove land area from 2013 to 2023, alongside examining density and canopy cover conditions. The method employed for mapping changes in land area entailed utilizing the unsupervised method with maximum likelihood classification. Additionally, the assessment of mangrove conditions involved employing plot line transects to determine species density and hemispherical photography methods to evaluate canopy cover. Notably, two types of mangroves, namely Rhizophora mucronata and Rhizophora apiculata, are prevalent in this village. The mangrove species density in Rewataya Village, Tanakeke Island, is categorized as good. In addition, the canopy cover in Rewataya Village falls within the classification of very dense according to mangrove damage criteria. However, there has been a notable reduction in the mangrove ecosystem area between 2013 and 2023, with a decrease of 42.28 hectares (from 367.13 hectares to 324.84 hectares).Keywords: MangroveLandsat 8Rewataya villageUnsupervised

Assessing changes in the mangrove ecosystem land area of Tanakeke Island, Takalar Regency, using Landsat 8 imagery Rosalina, Dwi; Rombe, Katarina Hesty; Arafat, Yasser; Jamil, Khairul; Hawati, Hawati; Sabilah, Anisa Aulia; Warni, Warni; Leilani, Ani; Ruzuqi, Rezza; Sari, Suci Puspita; Utami, Eva
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 2 (2024): AUGUST 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.2.33697

Rewataya Village is situated on Tanakeke Island, within the Takalar Regency. Despite its significance, previous studies have not addressed the mapping of changes in mangrove land area within this locale. The present research aimed to fill this gap by assessing alterations in mangrove land area from 2013 to 2023, alongside examining density and canopy cover conditions. The method employed for mapping changes in land area entailed utilizing the unsupervised method with maximum likelihood classification. Additionally, the assessment of mangrove conditions involved employing plot line transects to determine species density and hemispherical photography methods to evaluate canopy cover. Notably, two types of mangroves, namely Rhizophora mucronata and Rhizophora apiculata, are prevalent in this village. The mangrove species density in Rewataya Village, Tanakeke Island, is categorized as good. In addition, the canopy cover in Rewataya Village falls within the classification of very dense according to mangrove damage criteria. However, there has been a notable reduction in the mangrove ecosystem area between 2013 and 2023, with a decrease of 42.28 hectares (from 367.13 hectares to 324.84 hectares).Keywords: MangroveLandsat 8Rewataya villageUnsupervised

KONSERVASI DAN MORFOMETRIK INDUK PENYU YANG MENDARAT PADA PERIODE FEBRUARI - APRIL 2022 DI PULAU KAPOPOSANG DAN TAMBAKHULU, PROVINSI SULAWESI SELATAN Rosalina, Dwi; Awaluddin, Awaluddin; Melinda, Melinda
Jurnal Kebijakan Perikanan Indonesia Vol 17, No 1 (2025): (Mei) 2025
Publisher : Badan Penyuluhan dan Pengembangan Sumberdaya Manusia Kelautan dan Perikanan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jkpi.17.1.2025.%p

Identifikasi dan morfometrik induk penyu ini merupakan kegiatan rutin yang dilakukan oleh Balai Kawasan Konservasi Perairan Nasional untuk mengidentifikasi jenis induk penyu yang mendarat, pengukuran terhadap morfometrik induk penyu, serta mengetahui kondisi lingkungan ditempat mendaratnya induk penyu pada periode Februari sampai dengan Maret 2022. Metode yang dilakukan menggunakan metode observasi, dokumentasi dan wawancara. Hasil Penelitian didapatkan dua jenis induk penyu yaitu jenis penyu hijau dan jenis penyu sisik, sebanyak 10 induk penyu yang berhasil diukur morfomteriknya dengan panjang tubuh rata-rata 110-133 cm, panjang karapas 83-103 cm dan jumlah total telur sebanyak 1.957 butir yang ditemukan juga sebanyak 1.726 yang berhasil menetas jadi tukik selama penelitian. Adapun habitat tempat penyu mendarat memiliki pasir yang bertekstur halus berbatu dengan kemiringan pantai peneluran di pulau Kapoposang dan pulau Tambakhulu termasuk kategori landai dan disukai penyu untuk mendarat dengan kemiringan pantai 15º-18º, suhu pasir rata-rata 28˚C-30ºC, dan kelembaban pasir rata-rata 1 RH-4 RH, dengan vegetasi tumbuhan yaitu beruwas laut (Scaevola taccada), Bay Bean (Canavalia rosea), Cemara (Casuarina equisetifolia), Pohon stigi (Pemphis acidula).Identification and morphometrics of mother turtles is a routine activity carried out by the National Marine Conservation Area Office to identify the type of mother turtle that landed, measure the morphometrics of the mother turtle, and determine the environmental conditions where the mother turtle landed in the period February to March 2022. The method used using observation, documentation and interview methods. The research results showed that there were two types of turtle parents, namely the green turtle and the hawksbill turtle. A total of 10 turtle parents had their morphological measurements measured with an average body length of 110-133 cm, carapace length of 83-103 cm and a total number of eggs found of 1,957. There were also 1,726 who successfully hatched into hatchlings during the research. The habitat where the turtles land has sand with a fine, rocky texture with a slope of the nesting beaches on Kapoposang Island and Tamba Khulu Island which is in the gentle category and turtles prefer to land with a beach slope of 15º-18º, an average sand temperature of 28˚C-30ºC, and humidity. sand average 1 RH-4 RH, with plant vegetation namely sea bean (Scaevola taccada), Bay Bean (Canavalia rosea), Pine (Casuarina equisetifolia), Stigi tree (Pemphis acidula).

Giat Literasi Maritim Berbasis Komunitas: Kolaborasi Interdisipliner dalam Pemberdayaan Nelayan Pesisir Karawang Nuraini, Cut; Rizkiah, Riza; Rosalina, Dwi; Masliardi, Adi
Kapas: Kumpulan Artikel Pengabdian Masyarakat Vol 4, No 1 (2025)
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/ks.v4i1.4392

Indonesia memiliki potensi kelautan besar yang belum dimanfaatkan optimal karena rendahnya literasi nelayan, baik literasi dasar maupun digital. Permasalahannya adalah nelayan menghadapi tantangan dalam literasi maritim, yaitu pemahaman istilah kelautan, komunikasi, dan pemanfaatan informasi digital (cuaca, regulasi, pasar). Adapun tujuan pengabdian masyarakat ini adalah untuk meningkatkan kapasitas literasi maritim nelayan melalui program pengabdian masyarakat. Metode pelaksanaan yang digunakan dalam program ini menggunakan pendekatan Participatory Action Research (PAR), kolaborasi antara Program Studi Pendidikan Bahasa dan Sastra Indonesia UNSIKA dan Politeknik Kelautan dan Perikanan. Kegiatan ini mencakup pembelajaran kontekstual, pendampingan bahasa, dan pelatihan penggunaan teknologi digital. Hasil dari pogram ini yaitu dapat meningkatkan kemampuan nelayan. Ditemukan peningkatan signifikan dalam literasi dasar, penguasaan kosakata maritim, keterampilan komunikasi, dan adopsi teknologi digital. Secara spesifik, 70% peserta menunjukkan peningkatan dalam membaca informasi cuaca dan 80% mampu menyusun laporan sederhana. Model literasi maritim berbasis komunitas ini efektif, adaptif, dan berpotensi untuk direplikasi di wilayah pesisir lain di Indonesia sebagai strategi pemberdayaan masyarakat yang berkelanjutan.

Correlation between Sea Surface Temperature and Rainfall Intensity in Untia Waters, Makassar (2019–2024): Korelasi Suhu Permukaan Laut Terhadap Intensitas Curah Hujan Tahun 2029-2024 di Perairan Untia, Makassar Sabilah, Anisa Aulia; Rombe, Katarina Hesty; Najih, Muhammad Roin; Jamil, Khairul; Rosalina, Dwi; Fatiha, Nurul
Jurnal Ilmiah AgriSains Vol. 26 No. 2 (2025): Jurnal Ilmiah AgriSains
Publisher : Fakultas Peternakan dan Perikanan, Universitas Tadulako, Palu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/jiagrisains.v26i2.2025.79-91

Perairan Untia merupakan salah satu kawasan pesisir di Makassar yang memiliki aktivitas perikanan dan ekonomi yang tinggi. Perubahan pola curah hujan dapat memengaruhi aktivitas perikanan, kualitas air, dan ekosistem lokal. Variasi suhu permukaan laut (SPL) yang disebabkan oleh faktor seperti musim Timur dan musim Barat dapat memengaruhi distribusi dan intensitas curah hujan. Penelitian ini menganalisis data SPL dan intensitas curah hujan selama lima tahun terakhir (2019–2024) di Perairan Untia, Makassar. Data diperoleh dari Stasiun Meteorologi Maritim Makassar. Analisis dilakukan menggunakan uji normalitas, uji korelasi Pearson, dan analisis korelasi silang (cross-correlation) untuk mengetahui keterlambatan waktu (time lag) antara perubahan suhu laut dan terjadinya curah hujan. Hasil uji korelasi menunjukkan SPL memiliki hubungan yang lemah dengan curah hujan di Musim Barat (r = -0.31) dan Musim Peralihan I (r = -0.05), serta hubungan kuat hingga sangat kuat di Musim Timur (r = 0.53) dan Musim Peralihan II (r = 0.77). Hasil analisis cross-correlation memperlihatkan adanya time lag sekitar 1 bulan antara peningkatan SPL dan terjadinya hujan, terutama pada Musim Timur dan Peralihan II. Temuan ini penting untuk mendukung prediksi iklim lokal dan manajemen sumber daya pesisir.

Komposisi dan Kerapatan Jenis Alga di Taman Wisata Perairan Laut Banda di Kabupaten Maluku Tengah Rombe, Katarina Hesty; Rahman, Abdul; Mardiana, Mardiana; Rosalina, Dwi
Nekton Vol 3 No 1 (2023): March
Publisher : Politeknik Negeri Sambas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47767/nekton.v3i1.383

The purpose of this study was to identify the type of algae, calculate the composition, density, diversity index, similarity index, and dominance index, and measure water quality parameters in the waters of the Banda Sea marine tourism park in central Maluku Regency. The method used in this study is a line transect method and a quadrant frame measuring 1m x 1m. There are 3 stations used with 5 replications each. The results showed that there were three divisions of algae, namely Chlorophyta, Phaeophyta, and Rhodophyta, with details of the species obtained were Amphiroa fragilissima, Boodlea composita, Boergesenia forbesii, Cladophora, Chaetomorpha crassa., Dictyota dichotoma, Gracilaria edulispuntia, Halimeda macrophyopuntia. tuna, Padina australis, Ulva compressa, Ulva reticullata, and Valonia ventricosa. The Chorophyta division of 66% obtained the highest species composition value, the highest density was obtained by the Amphiroa fragilissima species of 0.205. In addition, the ecological index such as (1) the diversity index was in the medium category with a value range of 1.35-1.97, (2) the similarity index was included in the high category with a value range of 0.72-0.86 which indicates that the ecosystem is in a stable condition and the dominance index of the three stations shows a value close to one, namely 0.87-1 which indicates that there is a tendency for one species to dominate. The measurements of water quality parameters such as temperature, salinity, and currents show that they are optimal for algae growth.

Map of The Velocity and Direction of Ocean Currents During The East and West Monsoons of Manakarra Beach Mamuju Rosalina, Dwi; Rombe, Katarina Hesty; Sabilah, Anisa Aulia; Anisya, Ainun
Rekayasa Vol 17, No 2: Agustus, 2024
Publisher : Universitas Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/rekayasa.v17i2.22560

Current characteristics, including the type of dominant current, velocity, and direction, as well as the movement of ocean currents, cause the condition of a body of water to be dynamic. The aim of the study was to calculate the current direction and determine the direction of the west and east monsoon currents at Manakarra Beach in Mamuju. This study used the ARC GIS, Aviso, and MS Excel applications to utilize secondary data. The raw data were downloaded on Aviso to obtain the u and v vectors. The data obtained from Aviso was then processed into the MS Excel application to obtain the direction and velocity of the current. After gaining the current direction and velocity, the data were then visualized in the form of direction and velocity using interpolation analysis in ARC GIS. The results of the study were in the form of current velocities in Manakarra waters in 2022 in the west monsoon (reaching the highest number of 0.876561 m/s and the lowest number of 0.06885 m/s), and in the east monsoon the current velocity reached the highest number of 0.53816 m/s and the lowest number of 0.07355 m/s. In addition, the current direction in Manakarra waters in 2022 in the west monsoon had three directions, namely from the northwest, west, southwest, and ends in the northeast. In the east monsoon, there were three current directions in Manakarra waters, namely from the east, northeast, southeast, and partly from the northwest.

Kondisi Terumbu Karang di Pulau Kapoposang Kecamatan Liukang Tuppabiring Kabupaten Pangkajene Provinsi Sulawesi Selatan Rombe, Katarina Hesty; Rosalina, Dwi; Rahmawati, Gita; Surachmat, Agus; Sabilah, Anisa Aulia; Rahman, Abdul; Hermawan, Roni
Jurnal Sumberdaya Akuatik Indopasifik Vol 7 No 4 (2023): November
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46252/jsai-fpik-unipa.2023.Vol.7.No.4.316

Coral reefs are ecosystems in the sea formed by lime-producing marine biota, especially stony corals and calcareous algae, along with other biota that live on the ocean floor. Coral reefs are ecosystems that play an important role in coastal areas but are vulnerable to internal and external changes. The purpose of this study was to calculate the percentage of coral reef cover and assess the condition of coral reefs on the Kapoposang Island. Coral Point Count with Excel Extension (CPCE) was used to analyze coral reef data. The data used were photos of coral reefs taken using the Underwater Photo Transect (UPT) method from six observation stations scattered around Kapoposang Island. Each processed photo contained 30 randomly selected points. The results of the assessment of the condition of coral reef health at five stations showed that station 1 (one) 35.62% was in moderate condition, station 2 (two) 43% was in moderate condition, station 3 (three) 46.67% was in moderate condition, station 4 (four) 40.53% is in moderate condition, station 5 (five) 41.84% is in moderate condition and station 6 (six) 29.25% is in moderate condition. From the five data collection stations the condition of coral reefs on Kapoposang Island was in the moderate category with a percentage of 39.49%.

OCEAN CURRENT MAPPING USING COPERNICUS MARINE DATA IN THE TOGEAN ISLANDS WATERS (CASE STUDY 2021-2022) Rosalina, Dwi; Rizkiah, Riza; Handayani, Endy; Sulistiyo, Budi; Ismail, R. Moh.; Wardono, Suko; Yusuf, Muhammad; Sabilah, Anisa Aulia
Jurnal Segara Vol 20, No 2 (2025): December
Publisher : Politeknik Kelautan dan Perikanan Dumai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/segara.v20i2.17876

The Togean Islands, located in Tomini Bay, Central Sulawesi, Indonesia, are part of the coral triangle that encompasses the waters of Indonesia, the Philippines, Malaysia, Papua New Guinea, Japan, and Australia. This region hosts a coral reef ecosystem that relies on ocean currents for nutrient distribution and coral larval dispersal. Maintaining the balance and health of ocean currents is crucial for the sustainability of this ecosystem. This study aims to map ocean current patterns in the waters of the Togean Islands during the 2021–2022 period using data from Copernicus Marine. A secondary data analysis with a descriptive approach was employed. Data were obtained from the Copernicus Marine platform and processed using SeaDAS and ArcGIS software. In 2021, the recorded current speed was relatively lower, ranging from 0.04 m/s to 0.16 m/s, whereas in 2022, the current movement was stronger, with an average speed ranging from 0.06 m/s to 0.21 m/s. The comparison of ocean currents in the Togean Islands showed peak values in December for both years, while the lowest average speeds were recorded in March 2021 and October 2022. These current patterns are influenced by seasonal factors and play a significant role in marine ecosystem dynamics. This mapping is expected to serve as a reference for the management and conservation of coral reefs in the Togean Islands.

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