Marine Research in Indonesia最新文献_第2页

Health status of blood cockle's Tegillarca granosa (Arcidae: Bivalva) from three different farms along the Strait of Malacca 马六甲海峡沿岸三个不同养殖场血蚶的健康状况

Marine Research in Indonesia Pub Date : 2020-07-31 DOI: 10.14203/MRI.V45I1.571

F. Mohamat-Yusuff, S. Zulkifli, Muhammad Ilman Ismui, A. Joni, Nurhanin Aqila Mohammed Noor, A. Mukhtar

{"title":"Health status of blood cockle's Tegillarca granosa (Arcidae: Bivalva) from three different farms along the Strait of Malacca","authors":"F. Mohamat-Yusuff, S. Zulkifli, Muhammad Ilman Ismui, A. Joni, Nurhanin Aqila Mohammed Noor, A. Mukhtar","doi":"10.14203/MRI.V45I1.571","DOIUrl":"https://doi.org/10.14203/MRI.V45I1.571","url":null,"abstract":"The annual production of Tegillarca granosa in Perak and Selangor is constantly decreasing since 1996, however a different production pattern was reported in Johor where it was fluctuated for the past years. Thus, this study was done to provide information on the health condition of T. granosa through morphological observation of the biological attributes and the anatomy of the gill’s tissue. Sampling work was done in dry seasons between May and July 2019 at Bagan Pasir Laut, Perak, Kuala Sungai Buloh, Selangor and Sungai Ayam, Johor. A group of 22-30 T. granosa were collected randomly from each site for biological attribute measurement and the mean were analyzed using Kruskal-Wallis. Six to seven cockles with shell length ranging 25.00 – 35.00 mm were selected for the gill’s histological observation. Fresh T. granosa samples were preserved in 10% formalin before dissection and then the gills were fixed in Bouin's solution, followed by histological standard procedures and haematoxylin and eosin staining. Results indicated a significant difference of biological attributes was detected between the sites with the lowest measurement found in samples from Bagan Pasir Laut. The highest body weight (14.08g) was found in samples from Kuala Sungai Buloh, followed by Sungai Ayam (10.81g) and then Bagan Pasir Laut (8.08g). The histology of the gill filaments of samples from Sungai Ayam are full of hemocytes, well-structured epithelium cells with cilia in comparison to samples from Bagan Pasir Laut, and Kuala Sungai Buloh. The most degenerated gill filaments were found in samples from Bagan Pasir Laut. Thus, suggesting the unhealthy condition of the gills, affects the shell sizes and body weight of T. granosa between the three established farms.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115752186","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}

引用次数: 3

Correlation between macroalgae diversity and water quality in Southwest Maluku waters 马鲁古西南海域大型藻类多样性与水质的相关性研究

Marine Research in Indonesia Pub Date : 2020-07-27 DOI: 10.14203/MRI.V45I1.573

M. J. Rugebregt, H. Arfah, Ferdinand Pattipeilohy

{"title":"Correlation between macroalgae diversity and water quality in Southwest Maluku waters","authors":"M. J. Rugebregt, H. Arfah, Ferdinand Pattipeilohy","doi":"10.14203/MRI.V45I1.573","DOIUrl":"https://doi.org/10.14203/MRI.V45I1.573","url":null,"abstract":"Macroalgae play an important role in the ecosystem of the coastal area, serving as a shelter ground, nursery ground, and feeding ground. Macroalgae communities are directly influenced by water quality. This study aim was to determine the correlation between the macroalgae diversity and water quality in southwest Maluku waters. This research was conducted in September 2019 at seven research stations. Macroalgae samples were collected by transect method, while seawater quality was measured using Van Dorn Water Sampler. The macroalgae diversity, species composition, and dominance were determined. Water quality parameters analyzed were temperature, salinity, pH, phosphate, nitrate, and ammonia. Correlations between macroalgae diversity and water quality were determined using principal component analysis. This study recorded 45 species of macroalgae consisting of 15 species of red algae (Rhodophyta), 6 species of brown algae (Phaeophyta), and 24 species of green algae (Chlorophyta). Diversity Index varied ranged from low to moderate categories (0.969 - 2.345). Water quality in general is still quite good for macroalgae life. Macroalgae diversity and water quality correlate and influence each other.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131983208","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}

引用次数: 2

Effects of F/2 media modification on growth and antioxidant activity of microalga Nannochloropsis oculata F/2培养基改性对微藻生长及抗氧化活性的影响

Marine Research in Indonesia Pub Date : 2020-07-27 DOI: 10.14203/MRI.V45I1.560

Mohammad Aulia Ghafari, I. T. Suryaningtyas, D. Yona, Serly Sapulete, Nurhalis Tarmin, L. Ali, R. Marzuki, R. Pangestuti

引用次数: 0

Community structure and condition of seagrass meadows in Ayau Islands, Raja Ampat Regency 拉加安帕岛阿尤群岛海草草甸群落结构与状况

Marine Research in Indonesia Pub Date : 2020-07-21 DOI: 10.14203/MRI.V45I1.564

A. Irawan, Muhammad Hafizt, U. Hernawan

{"title":"Community structure and condition of seagrass meadows in Ayau Islands, Raja Ampat Regency","authors":"A. Irawan, Muhammad Hafizt, U. Hernawan","doi":"10.14203/MRI.V45I1.564","DOIUrl":"https://doi.org/10.14203/MRI.V45I1.564","url":null,"abstract":"Seagrass meadows are an important component of coastal ecosystems, providing many ecosystem services beneficial for human well-being. Basic information about seagrass meadows in Indonesia is relatively limited, particularly in the eastern part of Indonesia, such as the remote Ayau Islands in Raja Ampat. In this paper, we reported the community structure and condition of seagrass meadows in Ayau Islands surveyed during Nusa Manggala Expedition in November 2018. We conducted the seagrass survey using quadrat transect method at five locations, i.e. Reni, Rutum, Abidon, Kanober, and Dorehkar. In the survey, we assessed parameters of community structure, including habitat extent, species composition, seagrass cover, seagrass density, macroalgae and epiphyte cover. We also recorded environmental parameters, i.e. substrate types, water clarity, salinity, water temperature, and nutrient (phosphate and nitrate). Our study showed that seagrass meadows in Ayau Islands are multispecies meadows, composed of two to five species. In overall, five species recorded in Ayau Islands are Cymodocea rotundata, Enhalus acoroides, Halodule pinifolia, Halophila ovalis, and Thalassia hemprichii. The most common species is T. hemprichii as it can be found in all locations. Meadows in Reni, Rutum, and Dorehkar are in a healthy condition, while in Abidon and Kanober are in less healthy condition. This information is of significance as baseline information needed for seagrass conservation planning.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134420354","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}

引用次数: 1

Plankton community in the western waters of North-Sumatera during the onset monsoon of Asian winter 亚洲冬季季风开始时北苏门答腊西部水域浮游生物群落

Marine Research in Indonesia Pub Date : 2020-06-30 DOI: 10.14203/mri.v45i1.565

M. R. Firdaus, N. Fitriya, P. Avianto, H. Prayitno, A. J. Wahyudi

{"title":"Plankton community in the western waters of North-Sumatera during the onset monsoon of Asian winter","authors":"M. R. Firdaus, N. Fitriya, P. Avianto, H. Prayitno, A. J. Wahyudi","doi":"10.14203/mri.v45i1.565","DOIUrl":"https://doi.org/10.14203/mri.v45i1.565","url":null,"abstract":"The western waters of North-Sumatera experience dynamic environmental changes during the onset monsoon of the Asian winter. Those changes certainly will affect the distribution of marine organisms, especially the plankton. Plankton is the foundation of the aquatic food chain and plays an important role as the entry gate of solar energy to the water trophic systems. This study aims to investigate the plankton community and its correlation with the environmental factors during the onset monsoon of the Asian winter. Plankton samples were collected, along with water samples and in-situ measurement for environmental parameters determination from western waters of North-Sumatera (95°E – 93°N) in November-December 2017. Plankton samples were taken by vertically hauling (500 m) using Modified Twin Plankton Net with 80 µm mesh size for phytoplankton and 300 µm for zooplankton. Temperature, salinity, and density of waters were measured using CTD SBE 911 – Plus. The nutrients, including orthophosphate, nitrate, and silicate, measured using autoanalyzer Skalar SAN++. Thirty genera of phytoplankton and 44 taxa groups of zooplankton were found. The phytoplankton community dominated by Thallassionema, while the zooplankton dominated by Calanoida. There was a difference in the composition of plankton communities between the north and south parts of the study area. It was probably influenced by different water masses between those two regions indicated by the dissimilarity of their water characteristics. Based on the analysis of the T-S diagram, it is likely that the north community influenced by Bengal Bay Water while the south community influenced by the Indian Equatorial Water.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133684161","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}

引用次数: 2

KLAUS WYRTKI AND THE MODERN ERA OF THE MARITIME CONTINENT OCEANOGRAPHY 克劳斯·维茨基与近代海洋大陆海洋学

Marine Research in Indonesia Pub Date : 2019-12-31 DOI: 10.14203/MRI.V44I2.552

A. Gordon

{"title":"KLAUS WYRTKI AND THE MODERN ERA OF THE MARITIME CONTINENT OCEANOGRAPHY","authors":"A. Gordon","doi":"10.14203/MRI.V44I2.552","DOIUrl":"https://doi.org/10.14203/MRI.V44I2.552","url":null,"abstract":"The December 2019 issue of Marine Research in Indonesia on \"Oceanography of the Indonesian Seas\" is dedicated to Klaus Wyrtki. In many ways, Klaus Wyrtki's contribution to the study of the Indonesian seas served as a smooth transition from the era of the great expeditions such as the Dutch Willebrord Snellius Expedition (1929-1930; see Wüst, 1964; van Aken, 2005) of the early and mid-20th century to the modern era. \u0000In the NAGA Report (Wyrtki, 1961; also see Wyrtki, 2005), Klaus used existing ocean observations, supplemented with data he helped collect on the Indonesian research ship Samudera during his sojourn in Indonesia (1954-1957) as Head of the Institute of Marine Research in Jakarta to map out a broad view of the Southeast Asian waters (the waters of the Maritime Continent including the Indonesian seas). He presented the geography, the configuration of the seas and basins of the Southeast Asian waters, the surface circulation, and governing dynamics, including the tides and monsoonal driven seasonality, and the temperature/salinity surface layer patterns, as well as aspects of the subsurface stratification. The Plates 1-44 beautifully reveal the oceanographic condition of the Southeast Asian waters as resolved by the pre-1960 observations. \u0000As Klaus Wyrtki says in the NAGA Report Preface: \"It is hoped that workers in the region, whether in oceanography or other branches of science may find it a source of information and a stimulus to undertake further research in these waters\" and \"The scientific publications dealing with this region show not so much a lack of observations as a lack of an adequate attempt to synthesize these results to give a comprehensive description of the region.\" \"I soon decided to devote most of my time during my three years’ stay in Indonesia to the preparation of a general description of the oceanography of these waters.\" He succeeded.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124904087","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}

引用次数: 1

SPATIAL DISTRIBUTION OF TUNA LARVAE IN THE BANDA SEA WITH RELATION TO ITS CONSERVATION 班达海金枪鱼幼鱼的空间分布及其保护

Marine Research in Indonesia Pub Date : 2019-12-28 DOI: 10.14203/MRI.V44I2.558

A. Romdon, M. Fadli, Y. Hehuwat, L. Pay, W. N. Satrioajie, A. Syahailatua

{"title":"SPATIAL DISTRIBUTION OF TUNA LARVAE IN THE BANDA SEA WITH RELATION TO ITS CONSERVATION","authors":"A. Romdon, M. Fadli, Y. Hehuwat, L. Pay, W. N. Satrioajie, A. Syahailatua","doi":"10.14203/MRI.V44I2.558","DOIUrl":"https://doi.org/10.14203/MRI.V44I2.558","url":null,"abstract":"Tuna is the single valuable export fishery commodity in Indonesia, and Banda Sea is one of the main tuna fishing ground which belongs to fisheries management area (FMA) 714. More recently, the northern part of the Banda Sea has been preserved for tuna conservation since January 2015. The reason for this restriction is due to a preliminary of tuna spawning ground was adopted based on the scientific finding. Although conservation area has been enacted, information on the distribution of tuna larvae as a key variable for establishing conservation area in the Banda Sea needs to be improved through scientific findings. This study aims to provide the information on the tuna larvae encompassing the spatial distribution and tuna larval development stage as an important input to establish tuna conservation area. Tuna larvae data collection were carried out from several onboard surveys for more than four decades. Those study consisted of 21 surveys by using three types of gears to collect tuna larvae. Total of 143 stations was sampled from these surveys and tuna larvae were found in 57 stations. The average length of larvae specimens was 7.36 ± 0.33 mm. In general, tuna larvae found in the Banda Sea were in the pre-flexion, flexion, and post-flexion stage and larvae in pre-flexion stage found in the nearshore area. We concluded that the result of this study confirmed the hypothesis that tuna might spawn in the Banda Sea. Therefore, to strengthen this finding, studies on tuna larvae should be conducted regularly to clarify properly that the Banda Sea is an important tuna conservation zone.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130652160","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}

引用次数: 1

MANAGING SHIFTING FISHERIES RESOURCES 管理流动的渔业资源

Marine Research in Indonesia Pub Date : 2019-12-28 DOI: 10.14203/MRI.V44I2.556

C. Ryan, H. Rifai, Anne N. Feng, Nicole O'Hara, Swapnil Saawant

{"title":"MANAGING SHIFTING FISHERIES RESOURCES","authors":"C. Ryan, H. Rifai, Anne N. Feng, Nicole O'Hara, Swapnil Saawant","doi":"10.14203/MRI.V44I2.556","DOIUrl":"https://doi.org/10.14203/MRI.V44I2.556","url":null,"abstract":"The unprecedented rate of climate change and over-exploitation of resources has had a significant impact on ecosystems around the globe. In particular, the oceanic realm has encountered multiple changes to ecosystem conditions, food web dynamics and habitat constructs. Many marine species have been driven to shift their geographical range in reaction to reaching their physiological limits causing severe metabolic stress. This includes key fishery targets, such as pelagic and carnivorous fish, that supply many nations with their primary or secondary protein source. The shift also spurs an array of political and economic consequences due to the need for fisheries to follow or target different fish stocks that are no longer in their exclusive economic zone or legal fishing waters. For this reason, and many other logistical and financial reasons, management strategies have struggled to maintain and sustain fish stocks around the globe. This paper will look at a Northeast Atlantic mackerel case study, compare and analyse the implications of shifting fish stocks, and illustrate difficulties related to managing the fisheries which target these stocks. Furthermore, we highlight the need for a combination of global strategies, and smaller-scale ecosystem approaches in fisheries management to be able to sufficiently sustain fisheries and thus future food security, during a time of climatic change.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"448 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132820026","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}

引用次数: 0

DECADAL MIXED LAYER SALINITY IN THE SOUTHEASTERN INDIAN OCEAN 印度洋东南部年代际混合层盐度

Marine Research in Indonesia Pub Date : 2019-12-28 DOI: 10.14203/MRI.V44I2.546

M. R. Iskandar

引用次数: 0

THE CO-OPERATIVE STUDY OF KUROSHIO (CSK): IS IT BENEFICIAL FOR INDONESIA? 黑潮的合作研究:对印尼有利吗?

Marine Research in Indonesia Pub Date : 2019-11-07 DOI: 10.14203/MRI.V44I2.562

H. Mulyadi, A. Syahailatua, Z. Arifin

{"title":"THE CO-OPERATIVE STUDY OF KUROSHIO (CSK): IS IT BENEFICIAL FOR INDONESIA?","authors":"H. Mulyadi, A. Syahailatua, Z. Arifin","doi":"10.14203/MRI.V44I2.562","DOIUrl":"https://doi.org/10.14203/MRI.V44I2.562","url":null,"abstract":"The Cooperative Study of Kuroshio and its marginal seas (CSK) is one of the international joint research project conducted in the Western Pacific region. Many Asian countries had been involved in this project from 1965 to1979. Data and information from the CSK are enormous and cover wide-ranging aspects of marine science from the Kuroshio and adjacent regions (e.g. physical aspects, biological aspects and biogeochemical aspects). Indonesia had committed to participate actively in several marine research programs in the area linked to the CSK program by conducting marine research in its internal waters. This essay explained the CSK from biological aspects and Indonesia perspective. During the CSK, biological aspects (e.g. primary productivity, zooplankton biomass, and fisheries) were studied intensively. Indonesia conducted research in internal waters (Natuna Sea and the Java Sea) for oceanography monitoring and fish stock assessment. Participation in the CSK program allowed Indonesia to pursue the establishment of the National Center for Ocean Research (NCOR), develop human capacity building, research properties and standardized all techniques and procedures related to oceanography aspects. After the CSK, Indonesia has continued to conduct marine research linked to the previous study. We learn a lot from the past CSK that a key to succeeding in running this program depending on co-operative spirit, enthusiastic in understanding marine science from the region and enhancing human capacity for doing better marine research.","PeriodicalId":165907,"journal":{"name":"Marine Research in Indonesia","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115111203","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}

引用次数: 0