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Density of caalcareous macroalgae Halimeda sp. and Padina sp. around the water of Kodingareng Lompo Island, Spermonde Archipelago, Indonesia Bakti, Nurqadri Syaia; Rukminasari, Nita; Yaqin, Khusnul; Nane, La; Yusuf, Muh Yusfi
Tomini Journal of Aquatic Science VOLUME 3 ISSUE 2, NOVEMBER 2022
Publisher : Gorontalo State University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/tjas.v3i2.17002

Abstract

Based on the results obtained from this study, it can be concluded that: (1). Halimeda sp density based on stations, there is a noticeable difference between station 1 and station 3, (2)Halimeda sp density based on the research time, namely there is a noticeable difference between the study time in July and October, (3) Padina sp density based on stations, there is a noticeable difference between station 1 and station 2, and (4). The density of Padina sp is based on the time of the study, that is, there is a noticeable difference between the time of the study in July and October.
Perbandingan Kelimpahan dan Struktur Komunitas Zooplankton di Pulau Kodingareng dan Lanyukang, Kota Makassar Hasanah, Alinda Nurbaeti; Rukminasari, Nita; Sitepu, Farida G
Torani Journal of Fisheries and Marine Science Vol. 24 No. 1 (2014)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.147 KB) | DOI: 10.35911/torani.v24i1.113

Abstract

This study aimed to determine and compare community structure and assemblages species of zooplankton at Kodingareng and Lanyukang Island. This study used randomly sampling method and the sampling was conducted on July, August and October 2012. Data was analysed using at PRIMER software program. The results showed that zooplankton at Kodingareng and Lanyukang Isla nd had 48 taxa. 47 taxa was found when sampling at dry season and 25 taxa was found when the sampling at wet season. The species was only found at Kodingareng Island were Cypris and Amphipod, while the species was only found at Lanyukang Island was  Luciferidae zoea, Tad  Pole  and  Tintinid.  The  highest  average  of  zooplankton  abundance  was  found  at  dry  season  sampling  at Lanyukang Island, account for 670 individu/L. The result of ANOSIM showed that the level of significance of zooplankton  community  structure  a t  Lanyukang  and  Kodingareng  Island  was  0.5%.  Based  on  nMDS  plot  of zooplankton assemblages species between Lanyukang and Kodingareng Island showed clear seperation. The SIMPER result showed that there was no species seperator of community structure between those islands due to there was the same dominance of species, such as Calanoida, Cyclopoida, dan Chaetognatha.
Pengaruh Derajat Keasaman (pH) Air Laut Terhadap Konsentrasi Kalsium dan Laju Pertumbuhan H A L I M E D A SP Rukminasari, Nita; Nadiarti, Nadiarti; Awaluddin, Khaerul
Torani Journal of Fisheries and Marine Science Vol. 24 No. 1 (2014)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.147 KB) | DOI: 10.35911/torani.v24i1.119

Abstract

Ocean acidification afected marine organisms especially calcifying organisms, such as Halimeda sp. This study was conducted on June to September 2012 at laboratory of Research Center and Development for Marine, Coastal and Small Islands, Hasanuddin University. The aim of study  to determine the efect of acidic level on Calcium concentration and growth rate of calcifying macroalgae, Halimeda sp. The experiment design was used completely  random  design  with  three  treatments  and  three  replicates.  Analysis  variance  was  used  for  data analysis with advanced respon test. Tukey test was used to compare the diference between treatments. Water quality parameters were analyzed descriptively. The results showed that there was a significant diference of pH treatments on calcium concentration an d growth rate of Halimeda sp. The highest calcium concentration was found  at pH 8. In  conclusion, increasing pH level of media disturbed the calcifying  process of Halimeda  sp especially at pH level of 6, while growth rate of Halimeda sp was not afected wit h the decreasing of pH.
IDENTIFIKASI BEBERAPA SPESIES RUMPUT LAUT YANG POTENSIAL DIBUDIDAYAKAN DI PERAIRAN SULAWESI SELATAN Rukminasari, Nita; Ali, Syamsu Alam; Tambaru, Rahmadi
Torani Journal of Fisheries and Marine Science Vol. 26 No. 1 (2016)
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (15.153 KB) | DOI: 10.35911/torani.v26i1.2620

Abstract

Indonesia has a long costline dan have a high natural fisheries resources. One of natural resources from thecoast area is seaweed. Seaweed is export commudity from fisheries sector and Indonesia is one of the thirdmain producer for seaweed in the world. Seaweed species that have been cultured and utilized was onlyseveral species such as Glacillaria sp, Euchema cottoni and Geledium sp, on the other hand, Indonesia has ahigh diversity of seaweed. Based on LIPI data survey on 1998, it was found that 55 species of seaweed atIndonesian waters. Through this data, it showed that Indonesian water has a high potency for seaweedculture development. Aims of this study were to identify seaweed species that has a high potency to becultured at South Sulawesi’s waters and to analyse natural potency of several seaweed species that can becultured. Results study showed that diversity of seaweed species was varied within South Sulawesi’s waters.The highest number of species account for 30 species that found at Pangkep waters and the lowest number ofspecies was found at Bone waters account for 5 species. There were three class of seaweed that found fromlocations, such as Red, Brown and Green algae. The highest number of species from Red algae class wasfound from Bantaeng waters, furthermore the highest number of species from brown algae class was foundfrom Pangkep waters.Keywords : Seaweed, seaweed culture, South Sulawesi waters.
Measurement of C-Organic Content in Sediment as an Indicator of Carbon Absorption Potential in the Bonto Bahari Mangrove Ecosystem, Maros Regency Herawati, Sari; Rukminasari, Nita; Yunus, Budiman; Alam, Jamaluddin Fitrah
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 26 No. 02 (2025): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol26-iss02/585

Abstract

Mangrove ecosystems play an important role in mitigating global warming through their ability to absorb and store carbon in biomass and sediment. This research analyzes the organic carbon content and carbon sequestration potential in mangrove sediments in Bonto Bahari, Maros Regency, South Sulawesi. Using purposive sampling method, sediment samples were taken from 9 points with 5 different depths (0-50 cm) and analyzed using the Loss on Ignition (LOI) method. The results showed very low bulk density values (0.01-0.02 g/cm³) with the highest value at a depth of 20-30 cm. Carbon concentrations were relatively uniform (1.5-2.0%) at all depths with the highest concentration at a depth of 40-50 cm (1.93%). The highest carbon content was found at a depth of 40-50 cm (100.667 tons/ha) with carbon sequestration reaching 516.958 tons/ha, while the lowest value was at a depth of 0-10 cm (24.60 tons/ha). There were significant differences (p<0.05) in carbon content and sequestration between depths of 0-10 cm and 20-30 cm. This research reveals that deeper sediment layers play an important role in carbon storage in mangrove ecosystems, providing significant implications for sustainable mangrove management and local ecosystem-based climate change mitigation efforts
CARBON ABSORPTION POTENTIAL IN MANGROVE ECOSYSTEM IN BORONGKALUKUA, MAROS REGENCY, SOUTH SULAWESI, INDONESIA Salwa, Sausan As; Rukminasari, Nita; Alam, Jamaluddin Fitrah; Rahim, Sri Wahyuni
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 12 No. 1 (2025): Biolink August
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v12i1.14394

Abstract

Mangrove ecosystems are essential in mitigating climate change through Carbon storage in sediments. This study aims to analyze the bulk density values, carbon concentration, and Carbon storage and absorption in mangrove sediments in Borongkalukua, Maros Regency. Sampling was carried out at five sediment depths (0-10 cm, 10-20 cm, 20-30 cm, 30-40 cm, and 40-50 cm) using the Loss on Ignition (LOI) method and analyzed statistically using one-way and two-way ANOVA. The results showed an average bulk density value of 0.33 g/cm³, with the highest value at a depth of 30-40 cm (0.28 g/cm³). Furthermore, the average Carbon concentration was 11.37%, with the highest value at a depth of 40-50 cm (20.50%) and the lowest at 0-10 cm (1.98%), with no significant differences between depths (p-value > 0.05). Meanwhile, Carbon storage in sediment reached 2,423.77 tons/ha. Total absorption reaching 8,895.23 tons/ha. In conclusion,  sediment depth affects carbon accumulation, with higher carbon content in deeper layers due to the sedimentation process and minimal decomposition. This study emphasizes the importance of mangrove conservation in supporting Carbon storage and climate change mitigation.
THE EFFECT OF TEMPERATURE ON ZOOXANTHELLAE OF ISOPORA PALIFERA AND ACROPORA HYACINTHUS FROM KARANRANG ISLAND, INDONESIA Hasanah, Alinda N; Rukminasari, Nita; Yunus, Budiman; Yanuarita, Dewi; Jompa, Jamaluddin; Suharto, Suharto; Inaku, Dwi Fajriati
Jurnal Ilmu Kelautan SPERMONDE VOLUME 4 NUMBER 1, 2018
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v4i1.3798

Abstract

Climate change and global warming cause massive damage to the environment. One of the major events that arethreatening the marine ecosystem is coral bleaching. Coral bleaching occurs when corals are exposed to above or belownormal temperatures. The aims of this study are to compare the resistance of Isopora palifera and Acropora hyacinthusfrom Karanrang Island to temperature stress. Four treatment temperatures (28ºC, 30ºC, 32ºC, and 34ºC) were tested toassess the role of temperature stress and bleaching to Isopora palifera and Acropora hyacinthus for 48-hours. Theabundance of zooxanthellae counted as the temperature stress variable. The results showed that there was a difference ofcoral response tothe treatment based on the time of experiment, after 48-hours experimentexposed at temperaturetreatment of 34°C the abundance of zooxanthellae from Isopora paliferawas 0,06 x105 cm-2 and the abundance ofzooxanthellae from Acropora hyacinthus is 0,18 x105cm-2. In comparison between species, Isoporapalifera taken fromKaranrang Island was more resistant to temperature stress thanAcroporahyacinthus.
EFFECT OF MICROPLASTIC ON GREEN MUSSEL Perna viridis: EXPERIMENTAL APPROACH Rahim, Nur Fadhilah; Yaqin, Khusnul; Rukminasari, Nita
Jurnal Ilmu Kelautan SPERMONDE VOLUME 5 NUMBER 2, 2019
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v5i2.8937

Abstract

Plastics become debris in the ocean that can be broken down into tiny particles of micro size (<5 mm) and scattered into columns to the bottom of the water. Its very small size makes it easily accessible to various aquatic organisms, such as plankton, crustacean, and mussel. There have been many studies use mussel as a bioindicator for microplastic pollution but no one has observed the effect of microplastic exposure to mussel mortality. The aim of study was to examine the effect of microplastic on mussel mortality. Green mussels were collected from Mandalle Waters, Pangkep Regency (Pangkajene Kepualauan) then were exposed to microplastic polyethylene originating from shieving of scrub soap. The exposure was carried out for 7 days with microplastic concentrations of 0.05 (A), 0.5 (B), and 5 (C) g/L. Statistical test results showed the treatment B and C were not significantly different, but the two treatment were significantly different from treatment A. The percentage of green mussel mortality during the experiment increased with increasing microplastic concentrations with the percentage of mortality exceeding 80% at treatment C.
CARBON ABSORPTION ANALYSIS THROUGH ORGANIC-C CONTENT IN SEDIMENT AT AMPEKALE MANGROVE ECOSYSTEM, MAROS REGENCY Rukminasari, Nita; Sarwinda, Sarwinda; Suwarni, Suwarni; Moka, Wilma Joanna Carolina
Jurnal Ilmu Kelautan SPERMONDE VOLUME 11 NUMBER 1, 2025
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35911/jiks.v11i1.43958

Abstract

Global warming represents a significant challenge, primarily driven by the escalating concentrations of greenhouse gases in the atmosphere, notably carbon dioxide (CO₂). Mangrove ecosystems are integral to climate change mitigation due to their capacity to sequester and store carbon within their biomass and sediment. This study sought to evaluate carbon sequestration through the analysis of organic carbon content in the sediments of mangrove ecosystems located in Ampekale, Maros Regency. Sampling was executed using a purposive sampling method across nine sites, employing a 50 × 5 cm corer. Each sediment sample was sectioned into five depth intervals (0-10 cm, 10-20 cm, 20-30 cm, 30-40 cm, and 40-50 cm). The organic carbon content was assessed using the loss on ignition (LOI) method, with parameters measured including bulk density, sediment organic carbon concentration, carbon storage, and carbon uptake in sediments. Statistical analyses were conducted utilizing one-way and two-way ANOVA tests. The findings indicated that the mangrove ecosystem in Ampekale exhibited a total carbon storage in sediments of 731.72 tons/ha, with a total carbon uptake of 2685.42 tons/ha. The greatest carbon storage and uptake were observed at the 40-50 cm depth, with values of 342.056 tons/ha and 1255.34 tons/ha, respectively.
ANALYSIS OF SPECIES COMPOSITION AND DENSITY OF MANGROVES IN BORONG KALUKUA AND BONTO BAHARI, MAROS REGENCY Rukminasari, Nita; Ainun, Nur; Alam, Jamaluddin Fitrah; Moka, Wilma Joanna Carolina
Jurnal Ilmu Kelautan SPERMONDE VOLUME 11 NUMBER 1, 2025
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35911/jiks.v11i1.44561

Abstract

This study analyzed the composition and density of mangrove species in Borong Kalukua and Bonto Bahari in Maros Regency. The research method involved a field survey using purposive sampling in several observation plots. The data obtained were analyzed using a quantitative descriptive method to calculate the averages and standard deviations. The results showed that the mangrove density in Borong Kalukua was higher than that in Bonto Bahari, with average densities of 450 and 350 trees/ha, respectively. The standard deviation value showed variations in density between plots, with Borong Kalukua showing more significant variation than Bonto Bahari. Environmental factors and anthropogenic pressures are considered the primary causes of these differences. This study highlights the importance of conservation and rehabilitation efforts in maintaining the balance of mangrove ecosystems, particularly in areas subjected to higher environmental pressures.