Discover Oceans最新文献

Quantifying mangrove export of dissolved organic carbon on large scales and at fine resolution: a review of current technologies and the path forward 在大尺度和精细分辨率上量化红树林的溶解有机碳输出：当前技术的回顾和前进的道路

Discover Oceans Pub Date : 2025-06-17 DOI: 10.1007/s44289-025-00058-5

C. W. Sullivan, Neil D. Hartstein, Moritz Müller

{"title":"Quantifying mangrove export of dissolved organic carbon on large scales and at fine resolution: a review of current technologies and the path forward","authors":"C. W. Sullivan, Neil D. Hartstein, Moritz Müller","doi":"10.1007/s44289-025-00058-5","DOIUrl":"https://doi.org/10.1007/s44289-025-00058-5","url":null,"abstract":"Mangroves are carbon dense forests that are threatened by human driven factors. Their ability to sequester carbon can play a key role in meeting climate targets like the Paris Climate Agreement and the United Nations Sustainable Development Goals. In addition to sequestration, mangroves are significant sources of carbon to the ocean sink, which has implications for global carbon budgets. Mangrove carbon export is estimated to be equivalent to about 4% of yearly anthropogenic CO2 emissions. Currently, most estimates of global mangrove dissolved organic carbon (DOC) export are scaled from local analyses. However, mangrove ecosystems are dynamic and local analyses alone are not sufficient for accurate quantification of DOC export. Studies of mangrove DOC export need to expand spatial and temporal scales and refine temporal resolution. Technologies like advanced in-situ sampling, laboratory methods, remote sensing, modelling and machine learning can help to achieve this, but they are underutilised in mangrove DOC export research. In this review we explore the current state, existing and emerging technologies, and future needs for the study of mangrove DOC export.","PeriodicalId":516883,"journal":{"name":"Discover Oceans","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s44289-025-00058-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147921893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Unraveling the declining Indian ocean primary productivity and key drivers 揭示印度洋初级生产力下降及其关键驱动因素

Discover Oceans Pub Date : 2024-08-23 DOI: 10.1007/s44289-024-00018-5

Subhadeep Maishal

{"title":"Unraveling the declining Indian ocean primary productivity and key drivers","authors":"Subhadeep Maishal","doi":"10.1007/s44289-024-00018-5","DOIUrl":"https://doi.org/10.1007/s44289-024-00018-5","url":null,"abstract":"Climate change severely affects the third-largest maritime regions, disrupting physical and biogeochemical processes and Ocean Net Primary Productivity (NPP), which affects the marine food web, fisheries, and livelihoods of surrounding regions. This study examined changes in NPP in the Indian Ocean and its drivers. The Ocean warming, equatorial and Pacific warm pools, stratification fluctuations, circulation changes, nutrient transport, monsoons, and different seasonal processes significantly influenced these microbial mats. The Copernicus Marine Environment Monitoring Service (CMEMS) reanalysis data shows a high declining NPP trend in the Indian Ocean (-0.85 mgC/m3/day/yr). The high warming rate (0.01–0.02 °C/yr) primarily drives regional NPP alterations. The causal discovery analysis shows that sea surface temperature (SST) provides high negative feedback to NPP during all-time delays. Nitrate and phosphate show a positive association, reinforcing positive feedback, and Redfield stoichiometry holds paramount significance in fostering the NPP. Negative feedback is observed from the Western Pacific Index (WP), Oceanic Niño Index (ONI), Multivariate ENSO Index (MEI), and Pacific Decadal Oscillation (PDO). This climate pattern can modify mesoscale atmospheric circulation, influence currents, and change temperature and nutrient availability. The positive connection between the Southern Oscillation Index (SOI) and NPP underscores the complex interplay between climate patterns in the region. The Indian Ocean Dipole (IOD) negatively feedbacks the NPP. Various other climate patterns and events indirectly affect IO biogeochemical processes.","PeriodicalId":516883,"journal":{"name":"Discover Oceans","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s44289-024-00018-5.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147889066","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

First record of two species of brachyuran crab (Crustacea: Decapoda) Austruca albimana (Kossmann, 1877) and Tirmilyra concinnus (Ghani and Tirmizi, 1995) from India 印度首次记录到两种腕足动物蟹（甲壳纲：十足目）Austruca albimana (Kossmann, 1877) 和 Tirmilyra concinnus (Ghani and Tirmizi, 1995)

Discover Oceans Pub Date : 2024-07-15 DOI: 10.1007/s44289-024-00013-w

Deep D. Dudiya, P. Pandya, Mansi S. Goswami, Reza Naderoloo