Marine Research in Indonesia最新文献

{"title":"DIVERSITY OF POTENTIALLY TOXIC BENTHIC DINOFLAGELLATES IN INDONESIAN WATERS","authors":"R. Widiarti, N. Zamani, D. Bengen, H. Madduppa","doi":"10.14203/mri.v46i1.597","DOIUrl":"https://doi.org/10.14203/mri.v46i1.597","url":null,"abstract":"Ciguatera Fish Poisoning (CFP) is a syndrome caused by ciguatoxin-producing benthic dinoflagellate, which are typically attached to macroalgae. The toxin is responsible for the human poisoning symptom observed after the consumption of contaminated reef fish. Research on the composition and abundance of benthic dinoflagellate on macroalgae had already conducted within the 2010 - 2015 at several coral reef areas in Indonesian waters, such as Weh Island - Aceh, Belitung Island, Lampung Bay, Seribu Islands, and Lombok Island. This study reviewed all the references concern on benthic dinoflagellate researches in Indonesia, with aims to raise awareness on the presence of potentially toxic benthic dinoflagellates in Indonesian waters, also to create an inventory of the species discovered. The study revealed four of the six genera which are potentially toxic, namely Amphidinium, Gambierdiscus, Ostreopsis, and Prorocentrum. The Prorocentrum cells were identified in a larger number than any other genera in all the sampling locations. The relatively high number of benthic dinoflagellates were observed in Lampung Bay and Seribu Islands, which might be due to the high level of human activities. These findings are essential to compile a database on the CFP-causing species and to monitor the affected areas, specifically in highly populated locations or tourist sites.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"27 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125771360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"CHARACTERIZATION AND IDENTIFICATION OF PSEUDO-NITZSCHIA SPECIES IN LAMPUNG BAY, INDONESIA","authors":"A. Rachman, H. Thoha","doi":"10.14203/mri.v46i1.602","DOIUrl":"https://doi.org/10.14203/mri.v46i1.602","url":null,"abstract":"The domoic acid producing Pseudo-nitzschia has received more attention in the recent years due to increasing amnesic shellfish poisoning (ASP) cases in many Asian countries. However, information on morphological characters of Pseudo-nitzschia species in Indonesia was very limited, which hinders the attempt to quickly identify the species during a harmful algal blooms in the coastal waters. Thus this study aimed to identify and characterize the Pseudo-nitzschia species found in Lampung Bay, Indonesia. Phytoplankton samples used in this study were taken from the reference collection for plankton (RCP) in Research Center for Oceanography, Indonesian Institute of Sciences (RCO-LIPI). The samples were collected from Padang Cermin area in Lampung, during high tide in 2005. In this research, morphology and morphometry of Pseudo-nitzschia were observed using light microscope (LM) and transmission electron microscope (TEM). The Pseudo-nitzschia species found in Lampung was labelled as LMP3. Jaccard cluster analysis, using simple average link, showed that LMP3 was Pseudo-nitzschia pungens. The morphology and morphometry of LMP3 were matched perfectly with P. pungens (100% similarity) and differed from other Pseudo-nitzschia species in seriata complex. Unfortunately, it was not known whether the P. pungens LMP3 in this study was the toxin producer strain as this study used preserved sample, thus it was not possible to detect any trace of domoic acid in there.     ","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115417759","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrodynamic Conditions of the Banda and Northern Arafura Seas in the Northwest Monsoon (Februay2014)","authors":"Abdul Basit, H. Mulyadi, P. Pitriana, M. Putri, B. Mayer, T. Pohlmann","doi":"10.14203/mri.v46i1.599","DOIUrl":"https://doi.org/10.14203/mri.v46i1.599","url":null,"abstract":"The physical and hydrodynamic conditions in the Banda and Northern Arafura Seas (BAS) during northwest monsoon (February 2014) were investigated using a three-dimensional baroclinic nonlinear numerical model—the Hamburg Shelf Ocean Model (HAMSOM). This study found that northwesterly winds induced eastward surface currents that transported relatively fresh water from the Flores Sea to the Arafura Sea via the Banda Sea. It was also found that the westerly surface currents carried relatively cold water induced by upwelling along the northern coast of the Lesser Sunda Islands. Furthermore, the simulation results revealed that relatively saline surface water from the Indian Ocean intruding through the Ombai Strait and Timor Passage contributed to the surface water of the Eastern Banda Sea and Aru Basin being more saline than the surrounding water. Part of the surface water sank as a result of downwelling in the Arafura Sea. The BAS had higher salinity than the Makassar Strait at a depth of 75 –300m. The simulation results suggested that the higher salinity was due to the influence of the South Pacific Subtropical Water (SPSW) that entered the Indonesian Seas primarily through the Halmahera Sea.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130479118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"VARIATION OF TEMPERATURE AND ZEOLITE APPLICATION ON SIMULATED TRANSPORT OF CULTURED JUVENILE SEA CUCUMBER (Holothuria scabra)","authors":"Ida Ayu Amarilia Dewi Murni, M. Firdaus, L. Indriana, M. P. Rizqi","doi":"10.14203/mri.v46i1.579","DOIUrl":"https://doi.org/10.14203/mri.v46i1.579","url":null,"abstract":"Sea cucumber (Holothuria scabra) aquaculture practice required different sites for the juvenile and grow-out phase. While broodstock conditioning, spawning, and nursery phase were mostly conducted in an indoor hatchery, the juvenile needs to be reared outdoor in saltwater pond, sea pens, or ex-situ grow-out sites. However, information on optimal transport condition with regards to post-transport survival from the hatchery to the grow-out sites is limited. These gaps of knowledge required immediate research since the demand for sustainable sea cucumber culture is constantly increasing, whether for commercial or conservation (restocking) purposes. Therefore, the aim of this study is to investigate the effectiveness of transportation methods of juvenile sandfish by combining temperature and zeolite treatment. The variation of temperature (low and ambient) combined with the use of zeolite treatment on simulated transport condition of sea cucumber juvenile were evaluated in this study. This experiment used 3 (three) replicate groups consisting of 10 (ten) individual hatchery-produced sea cucumber juvenile (less than 0.1 g weight) held in 4 (four) different treatments of temperature and zeolite addition to medium water for 12 hours duration of simulated transport. The monitoring result of water quality (pH and ammonia) and the survival rate of sea cucumber juvenile observed within 7 (seven) days post-transport suggests that pH and survival rate were affected by the temperature regime and zeolite addition. The addition of zeolite and the increase of temperature tend to decrease pH values. However, the excessive decrease of temperature should be avoided during the transportation process as it tends to reduce the survival rate of sea cucumber juvenile.  ","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115430904","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"DIVERSITY AND ABUNDANCE OF CULTURABLE VIBRIONACEAE IN THE REARING TANKS OF THREE DIFFERENT CONSUMER TYPES OF AQUACULTURE COMMODITIES","authors":"H. Munandar, Dien Arista Anggorowati, Varian Fahmi, Syafriyadi Hafid","doi":"10.14203/mri.v46i1.582","DOIUrl":"https://doi.org/10.14203/mri.v46i1.582","url":null,"abstract":"Vibrio spp. bacteria species are heterotrophic and halophilic bacteria, which are commonly found in various habitats such as brackish, marine waters and animals. They are widely used as an indicator of water quality and cultured animal health. This study investigates the diversity and abundance of Vibrionaceae populations in the rearing water of three distinct consumer types of aquaculture commodities, namely abalone, lobster and sea cucumber, during six months sampling. We isolated Vibrionaceae bacteria from the rearing tanks of three different consumer types of aquaculture commodities. We then inoculated 100 µL of undiluted to 10-5 diluted water samples onto petriplate containing selective Thiosulphate Bile Salt Sucrose agar (TCBS). We characterised bacteria colonies based on the biochemical test for identification. Vibrio metschnikovii was the predominant bacteria species in abundance value from the rearing water of cultured lobster and sea cucumber. Meanwhile, Vibrio anguillarum was the most noticeable bacteria species in abundance from the rearing water of cultured abalone. These data provide information and facilitate the risk assessment of these pathogenic Vibrio species in aquaculture commodities.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134644121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Screening of anti-Candida albicans metabolites produced by marine sponge-associated bacteria","authors":"P. Kusumawati, Y. B. Murti, N. Wijayanti","doi":"10.14203/MRI.V45I2.575","DOIUrl":"https://doi.org/10.14203/MRI.V45I2.575","url":null,"abstract":"This study selected bacteria with high anti-Candida albicans (CA) activity among ten bacteria isolated from marine sponges. Bacteria were cultivated using the basal medium to produce the extract. Minimum Inhibitory Concentration (MIC) microdilution broth was used as an anti-CA assay followed by TLC-direct bioautography to characterize their active compound with spray reagents. The bacteria determination was done by molecular approaches using Repetitive-Element Sequences-based-PCR (rep-PCR) and amplification of 16S rDNA partial gene sequences, continued with BLAST analysis. The four out of ten tested bacteria had high anti-CA compounds and were potentially to be produced on a larger scale using the basal medium, which was BYT5C4, BYT5C5, BYT1A, and BYT7, with MIC of 1 mg/mL against 7.5×106 CFU/mL CA. TLC-bioautography test results showed that all metabolites from each isolate had different Rf and types of metabolites. Rep-PCR test showed that four bacteria had a low similarity index, indicating that they were different species. Based on molecular identification results, the BYT5C4, BYT5C5, BYT1A, and BYT7 isolates are strictly related to Brevibacterium casei, Exiguobacterium profundum, Micrococcus lylae, and Bacillus firmus, respectively. The active metabolites identified in this study can be isolated to determine the active molecules and their inhibitory routes to fungal growth. It is worth noting that additional research might be conducted to compare the activity of each antifungal metabolite to the synergistic activity of numerous antifungal metabolites detected in plant extracts.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"191 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121098492","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Aggregates in aquatic ecosystems and implications for aquacultures","authors":"Y. Alfiansah","doi":"10.14203/MRI.V45I2.584","DOIUrl":"https://doi.org/10.14203/MRI.V45I2.584","url":null,"abstract":"Agglomerations of suspended particulate matter serve various roles in aquatic ecosystems. They participate in nutrient and energy fluxes and are involved in important food web processes. While comprehensive studies on aggregates are available from natural freshwater and marine ecosystems, little is known about the roles of aggregates in aquacultures, particularly in shrimp pond farming. As particle-rich systems, shrimp ponds and marine aquaculture (mariculture) areas constitute interesting objects for aggregate studies, particularly as a source of natural feed, particle fluxes, microbial communities, including pathogenic bacteria, and possible vector of disease widespread. The aims of this review are i) to compile the current knowledge on the role of aggregates in aquatic ecosystems, particularly in aquaculture areas covering advantages and negative side effects of aggregates in aquacultures, ii) to explore the role of aggregates in disease ecology, and iii) perspective of aquaculture management in the context of aggregate utilization and management. Since Southeast Asia, especially Indonesia, is among the most important regions for aquaculture activities, this review focuses on Indonesian aquacultures. Although aquacultures produce important amounts of aggregates, including its associated microbial communities, they are rarely investigated in Indonesian aquacultures, particularly in shrimp pond farming. In contrast, most of the studies focused on bacterial cultivation and utilization of isolates for aquacultures. Thus, understanding the ecological roles of aggregates in aquacultures may support the improvement of aquaculture management and yields.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132825212","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Physiological response and growth performance of spiny lobster (Panulirus homarus) juvenile rearing in recirculating aquaculture system with various shelter type","authors":"K. Adiyana, Riza Zulkarnain, L. Thesiana","doi":"10.14203/mri.v45i2.285","DOIUrl":"https://doi.org/10.14203/mri.v45i2.285","url":null,"abstract":"Spiny lobster nursery is done to produce more adaptive and uniform juvenile lobsters quality. Shelters used in spiny lobster nursery served to reduce physical contact among lobsters in the rearing tank. The purpose of this study was to analyze the effect of different shelter types on physiological response and growth of spiny lobster (Panulirus homarus) juvenile rearing in recirculating aquaculture systems. Lobsters with an average weight of 50.07 ± 2.89 g were reared for 60 days. They were fed once a day with trash fish. The daily feeding rate was 3-4% of total weight. This study used four types of shelter as treatments with two replications. PVC pipe shelter as control (K), individual shelter square shaped (IS ■), individual shelter triangle shaped (IS ▲), and individual shelter tube shaped (IS ●). The weight and length of the lobster carapace improved with the duration of the research in all treatments. Throughout the trial, glucose levels in controls were generally greater than those in specific shelf treatments. The reaction of lobster hemolymph total protein to different shelters is highly variable. Overall, the usage of individual shelters had a considerable positive influence on grown lobsters in this study. This is because individual shelter eliminates contact between lobsters, eliminating the possibility of cannibalism in the cultivation container. This study concludes that IS ■ used in rearing Panulirus homarus showed a lower stress response than the other treatments in terms of glucose and total protein lobster hemolymph during the study. IS ■ is the best because it reduced stress levels and yielded better total biomass among the other treatments.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125587489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Climate variability since last glacial maximum based on distribution of foraminifera in North Papua Waters, Pacific Ocean","authors":"Adrianus Damanik, K. Maryunani, S. H. Nugroho, P. Putra","doi":"10.14203/MRI.V45I2.572","DOIUrl":"https://doi.org/10.14203/MRI.V45I2.572","url":null,"abstract":"Foraminifera distribution is one of the proxies used to reconstruct climatic conditions and paleoceanography. Specific species or groups of foraminifera can be associated with certain oceanographic parameters. As one of the entrances of Indonesia Through Flow (ITF), North Papua Waters has the role of channeling water masses from the Pacific Ocean to the Indonesian Waters. It is also influenced by global thermohaline circulation and ENSO. In this study, observations were made of changes in the distribution of foraminifera to reconstruct paleoclimate and paleoceanographic conditions in the North Papua Waters and their relation to global climate conditions. The analysis was performed on 246 cm core sediments with eight cm foraminifera observation intervals at sample depths 246-126 cm and four cm at sample depths of 126-0 cm. Pulleniatina spp., Neogloboquadrina spp., and Globorotalia spp., are used for radiocarbon dating. Planktonic abundant species of foraminifera are Pulleniatina obliqueloculata, Neogloboquadrina dutertrei, Globorotalia menardii, Globigerinoides ruber, Globigerinoides trilobus, and the benthonic are Melonis pompilideus, Pullenia bulloides, Oolina sp., Planulina bradyii, Oridorsalis umbonatus, Cibicides subhaidingerii, Eggrela bradyii, Planulina wuelestroffi, and Quinqueloculina spp.,. Division according to cluster analysis can show the difference between Holocene and Pleistocene, which is then more detailed divided into 17 clusters. Based on biozonation there are some events that can be observed: climate variability since Late Pleistocene, record Pleistocene-Holocene boundary based on the significant variability of foraminifera distribution, and records some of the global climate events such as Last Glacial Maximum (~19-17 kyr), Younger Dryas (~11-9 kyr), and 8,2K event.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129685330","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Marine plastic debris in Indonesia: Baseline estimates (2010-2019) and monitoring strategies (2021-2025)","authors":"I. Nurhati, M. Cordova","doi":"10.14203/MRI.V45I2.581","DOIUrl":"https://doi.org/10.14203/MRI.V45I2.581","url":null,"abstract":"Indonesia set the mission to reduce marine plastic debris by 70% between 2018-2025 with a global significance to support the UN Sustainable Development Goal 14.1. This short communication assesses marine debris baseline estimates in Indonesia before 2020 from available contributions and provides recommendations for monitoring marine debris mitigation between 2021-2025. Widely ranging model estimates of plastic debris released into seas highlight the roles of data source, the spatial resolution of models, and in situ data to provide representative baseline values. Recognizing the strengths and uncertainties of available contributions, model outputs converge on a baseline value of 0.52 ± 0.36 million tons (Mt) per year prior to 2020 in Indonesia, therefore setting a targeted reduced number of 0.16 Mt of marine debris releases in 2025. The Indonesian Institute of Sciences showed a preliminary value of plastic debris accumulation in beaches at 113.58 ± 83.88 g/m2 monthly or equivalent to 0.40 Mt/year by assuming plastic debris is most pervasive within 3 meters from Indonesia’s 99,093 km-long coastlines. It is important to distinguish that while river monitoring data informs land-based plastic debris releases, stranded beach debris represents a fraction of debris that is not present in the water column and bottom sediments. Moving forward, monitoring initiatives to mitigate marine debris should leverage on nationwide municipality-level model estimates (e.g., the source to leakage route framework of the National Plastic Action Partnership) as well as in situ river and coastal particularly but not limited to sites co-identified in previous monitoring studies (i.e., Medan, Batam-Bintan, Padang, Jakarta-Seribu Islands, Semarang, Pontianak, Bali, Lombok, Makassar, Manado, Bitung). The latter should be conducted at least seasonally, considering evidence of monsoonal variations of marine debris release and accumulation in Indonesia. Indonesia's vastness and regional diversity require coordination among stakeholders (government agencies, research institutions, universities, NGOs, citizen scientists) to monitor progress in the environments.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"1 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128978032","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}