Regional Studies in Marine Science最新文献

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Cases of oil spills in the Indonesian coastal area: Ecological impacts, health risk assessment, and mitigation strategies 印度尼西亚沿海地区的石油泄漏案例:生态影响、健康风险评估和缓解策略
IF 2.1 4区 环境科学与生态学
Regional Studies in Marine Science Pub Date : 2024-09-23 DOI: 10.1016/j.rsma.2024.103835
Setyo Budi Kurniawan , Muhammad Fauzul Imron , Ali Roziqin , Dwi Sasmita Aji Pambudi , Benedicta Dian Alfanda , Mahasin Maulana Ahmad , Fatmalia Khoirunnisa , Rizka Andriani Mahmudah , Rizkiy Amaliyah Barakwan , Hajjar Hartini Wan Jusoh , Hafizan Juahir
{"title":"Cases of oil spills in the Indonesian coastal area: Ecological impacts, health risk assessment, and mitigation strategies","authors":"Setyo Budi Kurniawan ,&nbsp;Muhammad Fauzul Imron ,&nbsp;Ali Roziqin ,&nbsp;Dwi Sasmita Aji Pambudi ,&nbsp;Benedicta Dian Alfanda ,&nbsp;Mahasin Maulana Ahmad ,&nbsp;Fatmalia Khoirunnisa ,&nbsp;Rizka Andriani Mahmudah ,&nbsp;Rizkiy Amaliyah Barakwan ,&nbsp;Hajjar Hartini Wan Jusoh ,&nbsp;Hafizan Juahir","doi":"10.1016/j.rsma.2024.103835","DOIUrl":"10.1016/j.rsma.2024.103835","url":null,"abstract":"<div><div>Oil is still the main source of energy in various sectors, such as transportation, industries, and electricity. As one of the developing countries, Indonesia has enormous activities related to oil, including drilling, transporting, and refining. This paper aimed to provide a review of the cases of oil spills in the Indonesian coastal area as an impact of oil-related activities. Most of the Indonesian oil spill cases occurred due to tanker leakage, pipe leakage, and ship accidents. Most of the well-documented and reported cases of oil spills in the Indonesian coastal area occurred in Java Region, with PT Pertamina (a government-owned oil and gas company) and its subsidiaries being the primary parties commonly involved in the accidents. The ecological impacts of the oil spill, including those on plankton, benthos, fish, birds, and vegetation, are then elaborated in detail. Additionally, health risks to humans are also intensively discussed, presenting acute and long-term exposure effects. This paper presents oil spill management strategies, focusing on the mitigations and regulations related to previous cases, in which cleanup operations and financial compensations were the most frequently implemented mitigation efforts. This paper also lists the options for technologies, including physical, chemical, and biological methods, in an effort to clean up oil spills. Monitoring the adverse effects of oil spills on human health and creating local-specific contingency plans are suggested to be conducted for future research directions.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142312991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bioaccumulation of natural radionuclides in edible molluscs and associated risk from the Ashtamudi Estuary, situated in a high background natural radiation zone (HBNRA), Kerala, southwest coast of India 印度西南海岸喀拉拉邦高本底天然辐射区(HBNRA)阿什塔穆迪河口可食用软体动物体内天然放射性核素的生物累积及相关风险
IF 2.1 4区 环境科学与生态学
Regional Studies in Marine Science Pub Date : 2024-09-22 DOI: 10.1016/j.rsma.2024.103833
Jayaseeli Malar Adaikalam, Yaseen Nawaz Shareef, Mohan Feroz Khan
{"title":"Bioaccumulation of natural radionuclides in edible molluscs and associated risk from the Ashtamudi Estuary, situated in a high background natural radiation zone (HBNRA), Kerala, southwest coast of India","authors":"Jayaseeli Malar Adaikalam,&nbsp;Yaseen Nawaz Shareef,&nbsp;Mohan Feroz Khan","doi":"10.1016/j.rsma.2024.103833","DOIUrl":"10.1016/j.rsma.2024.103833","url":null,"abstract":"<div><div>The study investigated various natural radionuclides, including <sup>238</sup>U, <sup>232</sup>Th, <sup>210</sup>Po, and <sup>210</sup>Pb, in edible molluscan species collected from different zones of the Ashtamudi estuary. Physicochemical and sedimentological factors played crucial roles in influencing the distribution of radionuclides in water and sediments. Notably, bivalve species, particularly those from the Cyrenidae family, exhibited significant bioaccumulation of <sup>210</sup>Po (up to 432.8 Bq kg<sup>−1</sup>) and <sup>210</sup>Pb (up to 121.3 Bq kg<sup>−1</sup>), with Zone VI recording the highest biological concentration factor (BCF) and biological sediment accumulation factor (BSAF). The calculated effective dose for humans consuming bivalve meat was moderate, falling above the lower end of the ICRP range of 1 mSv y<sup>−1</sup> but well below the upper limit of 20 mSv y<sup>−1</sup> for existing elevated radiation zones. The intake of radioactivity from some bivalves corresponded to a cancer risk of approximately 3.2 × 10<sup>−2</sup> (total mortality + morbidity), exceeding the acceptable risk threshold reported by the USEPA. However, this level of exposure indicated that immediate action might not be necessary, especially if further dose reduction proved impractical, in line with the ICRP's approach to optimizing radiation protection.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142322996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Spatio-temporal variation in mangrove crab diversity in five estuaries of Kerala, India 印度喀拉拉邦五个河口红树林蟹多样性的时空变化
IF 2.1 4区 环境科学与生态学
Regional Studies in Marine Science Pub Date : 2024-09-21 DOI: 10.1016/j.rsma.2024.103830
K.P. Apreshgi , K.V Aneesh Kumar , Sileesh Mullasseri , Kurian Mathew Abraham
{"title":"Spatio-temporal variation in mangrove crab diversity in five estuaries of Kerala, India","authors":"K.P. Apreshgi ,&nbsp;K.V Aneesh Kumar ,&nbsp;Sileesh Mullasseri ,&nbsp;Kurian Mathew Abraham","doi":"10.1016/j.rsma.2024.103830","DOIUrl":"10.1016/j.rsma.2024.103830","url":null,"abstract":"<div><div>The present study investigated the community structure and faunal composition of mangrove crab assemblage of five estuaries in Kerala. Mangrove crabs were collected from different estuaries namely Puthuvype, Ayiramthengu, Dhalavapuram, Pullichira and Kottaramthuruth from January 2015 to December 2015. The numerical abundance was directly enumerated by handpicking crabs from the estuarial mangrove region from 100×100 cm quadrats from the estuarine mangrove regions. Thirteen brachyuran crab species were identified across the five estuaries, along with environmental and sedimentological parameters. Various diversity indices were calculated for spatial temporal comparisons. The study revealed that four of the estuaries exhibited similar crab species diversity, while Pullichira differed, displaying the lowest diversity due to habitat characteristics such as small islands or sand dunes and shallow depth. The calculated indices for species diversity, richness, dominance, evenness, taxonomic and phylogenetic relationships provide insights into the spatio-temporal variations of mangrove crab diversity. This study serves as a benchmark reference for future studies in these estuaries, and further monitoring and assessment of mangrove ecosystem health could support the development of ecosystem-based management strategies for deteriorating mangrove ecosystems.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142322999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Zooplankton in the Indian Sundarbans: Distribution, water parameters, threats and opportunities 印度孙德尔本斯的浮游动物:分布、水体参数、威胁与机遇
IF 2.1 4区 环境科学与生态学
Regional Studies in Marine Science Pub Date : 2024-09-21 DOI: 10.1016/j.rsma.2024.103826
Shrayan Bhattacharjee , Pradipta Kumar Ghosh , Ankit Bhattacharyya , Pallab Ghosh , Ritam Kumar Meddya , Sourav Chatterjee , Richek Routh , Suraj Mondal , Banani Mandal , Arunava Mukherjee
{"title":"Zooplankton in the Indian Sundarbans: Distribution, water parameters, threats and opportunities","authors":"Shrayan Bhattacharjee ,&nbsp;Pradipta Kumar Ghosh ,&nbsp;Ankit Bhattacharyya ,&nbsp;Pallab Ghosh ,&nbsp;Ritam Kumar Meddya ,&nbsp;Sourav Chatterjee ,&nbsp;Richek Routh ,&nbsp;Suraj Mondal ,&nbsp;Banani Mandal ,&nbsp;Arunava Mukherjee","doi":"10.1016/j.rsma.2024.103826","DOIUrl":"10.1016/j.rsma.2024.103826","url":null,"abstract":"<div><div>Zooplankton plays crucial roles in the food web by transferring energy from primary producers to higher trophic levels. The Indian Sundarbans, being a large mangrove-estuarine ecosystem, harbors rich aquatic diversity but endures several threats from anthropogenic activities. The present review comprehensively summarizes the status of zooplankton in the Indian Sundarbans. This review discusses the distribution of zooplankton across rivers and tidal creeks/canals, the influences of water parameters, possible threats, and conservation proposals through potential long-term monitoring. Calanoid copepods (∼32.02 %) are predominant in the Indian Sundarbans, followed by Choreotrichida (∼17.8 %), Cyclopoida (∼8.67 %), Decapoda (∼7.55 %), and Harpacticoida (∼5.66 %). As per previous studies, calanoid <em>Pseudodiaptomus serricaudatus</em> is predominant in rivers, followed by <em>Paracalanus parvus</em>, <em>Bestiolina similis</em>, <em>Acartia plumosa</em>, and <em>Acartiella tortaniformis</em>. Salinity is the key water parameter influencing the assemblage and distribution of zooplankton in the Indian Sundarbans. Zooplankton in this region face several threats, such as pollution, natural disasters, and the development of river dykes, which may raise serious concerns about their survival. This review recommends conservation and long-term monitoring programs, including mass culture, database development, and the use of advanced techniques to support conservation policies for zooplankton communities. Special emphasis is given to habitat conservation and the implementation of river conservation programs like “Namami Gange” initiated by the Government of India. Additionally, this review outlines a baseline draft on zooplankton monitoring in the Indian Sundarbans, addressing sampling frequency, sampling locations, and possible funding opportunities for the smooth running of this program.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142326842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
An effective way to monitor the population of juvenile horseshoe crabs in the Beibu Gulf of China 监测北部湾鲎幼体数量的有效方法
IF 2.1 4区 环境科学与生态学
Regional Studies in Marine Science Pub Date : 2024-09-21 DOI: 10.1016/j.rsma.2024.103831
Mujiao Xie , Yuyuan Bao , Xiaoyong Xie , Wuying Lin , Xiaohai Chen , Xinyi Zhao , Xiaobo Xiao
{"title":"An effective way to monitor the population of juvenile horseshoe crabs in the Beibu Gulf of China","authors":"Mujiao Xie ,&nbsp;Yuyuan Bao ,&nbsp;Xiaoyong Xie ,&nbsp;Wuying Lin ,&nbsp;Xiaohai Chen ,&nbsp;Xinyi Zhao ,&nbsp;Xiaobo Xiao","doi":"10.1016/j.rsma.2024.103831","DOIUrl":"10.1016/j.rsma.2024.103831","url":null,"abstract":"<div><div>Population conservation of horseshoe crab is urgently required in China as their population is declining dramatically. However, conservation efforts are severely constrained by the lack of information on the population dynamics of the species. Here, a citizen science-based investigation was conducted to continuously monitor the population dynamics of juvenile <em>Tachypleus tridentatus</em> and <em>Carcinoscorpius rotundicauda</em> in the Beibu Gulf of China over five years. A low abundance of horseshoe crabs was observed at all stations. <em>T. tridentatus</em> was primarily observed in the eastern of Beibu Gulf, with an abundance (0.179 ind/100 m<sup>2</sup>) larger than that of <em>C. rotundicauda</em> (0.007 ind/100 m<sup>2</sup>). The prosomal width range of <em>T. tridentatus</em> was between 9.0 and 138.0 mm while that of <em>C. rotundicauda</em> was between 20.0 and 111.0 mm, representing their different age distribution patterns. A continuous distribution pattern from 3rd to 14th instar was observed in the <em>T. tridentatus</em> population, whereas a discontinuous distribution pattern from 6th to 16th instars was observed in the <em>C. rotundicauda</em> population. This instar distribution pattern implies that these areas are crucial nursery habitats for the two species. No horseshoe crab within the 1st to 2nd instars (for <em>T. tridentatus</em>) or before 6th instar (for <em>C. rotundicauda</em>) were observed within five years, indicating a declining age structure with few natural births. It was concluded that the declining population would exacerbate the risk of endangered horseshoe crab. There is an urgent need to strengthen the protection of horseshoe crab in the Beibu Gulf, particularly to protect their nursery habitats. The value of long-term citizen science based-monitoring was highlighted, which greatly increased public awareness of horseshoe crab protection.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142326841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fine-scale phylogeography of Tripneustes gratilla revealed a core-periphery pattern in the South China sea 三棘鲷的精细系统地理学揭示了中国南海的核心-外围模式
IF 2.1 4区 环境科学与生态学
Regional Studies in Marine Science Pub Date : 2024-09-21 DOI: 10.1016/j.rsma.2024.103832
Ruoqin Sun , Na Du , Xiaoqi Zeng , Gang Ni
{"title":"Fine-scale phylogeography of Tripneustes gratilla revealed a core-periphery pattern in the South China sea","authors":"Ruoqin Sun ,&nbsp;Na Du ,&nbsp;Xiaoqi Zeng ,&nbsp;Gang Ni","doi":"10.1016/j.rsma.2024.103832","DOIUrl":"10.1016/j.rsma.2024.103832","url":null,"abstract":"<div><div>The Core-Periphery Hypothesis (CPH) is a theoretical framework in phylogeography used to examine the spatial distribution of genetic diversity. The tropical Indian-Western Pacific (IWP), serving as a prominent marine biodiversity hotspot, constantly exports species and evolutionary novelties to peripheral habitats. Many species display genetic patterns consistent with CPH predictions from the IWP to periphery regions. However, the presence of CPH’s genetic signals in intermediate distribution zones remains underexplored. Here, we collected four sea urchin populations of <em>Tripneustes gratilla</em> in the South China Sea and analysed their population structure and evolutionary patterns using 13 morphological parameters, one mitochondrial <em>16S rRNA</em> gene and nine polymorphic microsatellites. The results revealed substantial genetic homogeneity among the populations, implying a single origin from a glacial refugium. Nonetheless, morphological and microsatellite data distinctly differentiate the northernmost Fengjiawan population from the others, which could be attributed to increased environmental selection pressures such as temperature. Analysis of genetic diversity variation along latitudinal gradients and the relationship between geographic and genetic distances align with CPH expectations for both 16S and microsatellites, albeit to varying degrees of significance. This study enhances our understanding of tropical marine invertebrate evolution and supports the applicability of the CPH model at a fine-scale level.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142319484","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Untargeted metabolomics profiling of tropical marine microalgae in batch culture system with different mobile phase using Liquid Chromatography-Orbitrap High-resolution Mass Spectrometry combined with chemometrics 利用液相色谱-轨道阱高分辨质谱法结合化学计量学,对不同流动相批量培养系统中的热带海洋微藻进行非靶向代谢组学分析
IF 2.1 4区 环境科学与生态学
Regional Studies in Marine Science Pub Date : 2024-09-21 DOI: 10.1016/j.rsma.2024.103834
Diah Radini Noerdjito , Anjar Windarsih , Debora Christin Purbani , Ismu Purnaningsih , Suratno
{"title":"Untargeted metabolomics profiling of tropical marine microalgae in batch culture system with different mobile phase using Liquid Chromatography-Orbitrap High-resolution Mass Spectrometry combined with chemometrics","authors":"Diah Radini Noerdjito ,&nbsp;Anjar Windarsih ,&nbsp;Debora Christin Purbani ,&nbsp;Ismu Purnaningsih ,&nbsp;Suratno","doi":"10.1016/j.rsma.2024.103834","DOIUrl":"10.1016/j.rsma.2024.103834","url":null,"abstract":"<div><div>Microalgae have recently been identified as a valuable source of natural bioactive compounds, with potential applications suggested in areas such as food, animal feed, energy production (biofuels), fine chemicals, and pharmaceuticals. However, their chemical diversity remains largely unexplored and it is necessary to determine their potency for further application. This study will explore the diversity of chemical compound from six tropical marine microalgae with untargeted comparative metabolomics approach using a Liquid Chromatography-Orbitrap High Resolution Mass Spectrometry with different mobile phases. Six microalgae species were isolated from Jakarta Bay, Indonesia. Species identification was carried out using morphological and molecular identification. The isolates <em>Chlorella vulgaris</em> InaCC M205 (C5), <em>Chlorella</em> sp. 12 (C12), <em>Tetraselmis subcordiformis</em> InaCC M206 (T2), <em>Tetraselmis</em> sp. 5 (T5), <em>Nannochloropsis oceanica</em> InaCC 207 (N4), and <em>Porphyridium purpureum</em> (P) were then cultivated using f/2 media in 1 L glass photobioreactors, irradiated with daylight lamps (4000 lux) under a 12 h/12 h photoperiod at 25 <sup>0</sup>C for until cultures reached the stationary phase. Biomass harvesting and measurements were carried out at the end of the culture period. The freeze-dry biomass then was analyzed using liquid chromatography-high resolution mass spectrometry. The results showed that biomass production on day 12 was not significantly different. Biomass production ranged from 0.8 to 1 g/L, with the highest production obtained from the C5 strain and the lowest from the C12 strain. Chromatography analysis revealed that untargeted metabolomics profiling of microalgae, using water-acetonitrile as mobile phase, identified potential compound markers such as N-Methyl-2-pyrrolidone, l-(+)-Cysteine, TBHQ and L-Phenylalanine, which can differentiate between species. Compound such as Cyromazine, Arachidic acid and 13(S)-HOTrE were the potential compound markers when using Water-Methanol as mobile phase. Our research indicates that the metabolomic profile of microalgae can be used to differentiate species depending on the choice of mobile phase.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142312954","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evidence for resource partitioning in weakfishes from a coastal upwelling ecosystem 沿岸上升流生态系统中弱鱼类资源分配的证据
IF 2.1 4区 环境科学与生态学
Regional Studies in Marine Science Pub Date : 2024-09-20 DOI: 10.1016/j.rsma.2024.103829
Arthur B. Bauer , Nigel E. Hussey , Luciano G. Fischer
{"title":"Evidence for resource partitioning in weakfishes from a coastal upwelling ecosystem","authors":"Arthur B. Bauer ,&nbsp;Nigel E. Hussey ,&nbsp;Luciano G. Fischer","doi":"10.1016/j.rsma.2024.103829","DOIUrl":"10.1016/j.rsma.2024.103829","url":null,"abstract":"<div><div>Resource partitioning plays an important role in supporting species coexistence. In a coastal upwelling ecosystem two weakfish species, <em>Cynoscion guatucupa</em> and <em>C. jamaicensis</em> co-occur and are key commercial species. The present study aimed to provide a comprehensive assessment of the feeding ecology of both species, including to; (i) quantitatively assess diet, (ii) evaluate ontogenetic and seasonal diet variations, and (iii) estimate dietary overlap in the context of competition or resource partitioning, using an integrated approach combining stomach content (SCA) and stable isotope analyses (SIA). Our results revealed that both <em>C. guatucupa</em> and <em>C. jamaicensis</em> prey mainly on pelagic fish and shrimp with ontogenetic and seasonal changes in diet detected. Weakfishes consume a large proportion of similar prey throughout the year and high isotopic niche overlap confirmed the SCA results. Despite the similar use of food resources by both species, the availability and abundance of prey promoted by seasonal upwellings and the possible spatial segregation between <em>C. guatucupa</em> and <em>C. jamaicensis</em> may promote their co-occurrence in an upwelling ecosystem. Due to their commercial value and fisheries importance in the southwestern Atlantic, these results contribute insights to support sustainable fisheries management.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142322997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multiannual oceanographic studies in the coastal area of Karadag Nature Reserve and Koktebel Bay (northern Black Sea) in 2004–2021 2004-2021 年卡拉达格自然保护区和科克特贝尔湾(黑海北部)沿海地区的多年度海洋学研究
IF 2.1 4区 环境科学与生态学
Regional Studies in Marine Science Pub Date : 2024-09-20 DOI: 10.1016/j.rsma.2024.103820
Sergey V. Kapranov, Oleg A. Troshchenko, Nelya P. Kovrigina, Natalya V. Pospelova, Nataliya Yu. Rodionova
{"title":"Multiannual oceanographic studies in the coastal area of Karadag Nature Reserve and Koktebel Bay (northern Black Sea) in 2004–2021","authors":"Sergey V. Kapranov,&nbsp;Oleg A. Troshchenko,&nbsp;Nelya P. Kovrigina,&nbsp;Natalya V. Pospelova,&nbsp;Nataliya Yu. Rodionova","doi":"10.1016/j.rsma.2024.103820","DOIUrl":"10.1016/j.rsma.2024.103820","url":null,"abstract":"<div><div>The study presents the results of the first multiannual oceanographic monitoring in the coastal area of Karadag Nature Reserve and adjacent water areas in May and September in the period from 2004 to 2021. Significant and unprecedentedly high increasing trends were detected for salinity in May. Increasing trends in nitrate concentration in Koktebel Bay were noted both for May and for September. The five-day biochemical oxygen demand (BOD<sub>5</sub>), ammonium and phosphate concentrations demonstrated mostly negative trends for the measurements in May and positive trends in September. Significant decreasing trends in phytoplankton biomass were noted in September, which fit in the range of the larger-scale phytoplankton trends reported in the literature. The position of the extrema of nutrients in the long-term-average and trend slope maps was confined to the areas of increased hydrodynamic and anthropogenic activity. Multivariate analysis showed significant negative correlations of the quantitative phytoplankton characteristics with salinity, which were explained by the effect of the freshened and nutrient-enriched Azov plume. The absence of significant correlations with nutrients was attributed to the non-conservative and stochastic character of the nutrient inflow on the yearly scale and time lag between the nutrient supply and the phytoplankton growth. The large percentage of occurrences of low BOD<sub>5</sub> values at any station indicates the unpolluted status of the area under research, which is confirmed by the low trophic index values and appearance of probability distributions of the nutrient concentrations.</div></div>","PeriodicalId":21070,"journal":{"name":"Regional Studies in Marine Science","volume":null,"pages":null},"PeriodicalIF":2.1,"publicationDate":"2024-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142319485","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Climatic variability of wave heights in the shelf zone of the North-Eastern part of the Black Sea according field data 根据实地数据,黑海东北部陆架区波高的气候多变性
IF 2.1 4区 环境科学与生态学
Regional Studies in Marine Science Pub Date : 2024-09-19 DOI: 10.1016/j.rsma.2024.103808
Yana Saprykina
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