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RISS 인기검색어
- 검색키워드
- 저자 : Md. Khurshid Alam Bhuiyan (검색결과 2 건)
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Phytoplankton in tropical mangrove estuaries: role and interdependency
A.S.M. Saifullah,Abu Hena Mustafa Kamal,Mohd Hanafi Idris,Amy Halimah Rajaee,Md. Khurshid Alam Bhuiyan 한국산림과학회 2016 Forest Science And Technology Vol.12 No.2
Mangrove estuaries are claimed to be productive and important breeding grounds for fishery resources. The role of particulate organic matter (POM), especially derived from decomposed litter detritus, is well documented in mangrove estuaries. However, being a primary producer, phytoplankton may play a significant role, which has not been well discussed, in governing the productivity of mangrove estuaries. Based on relevant published literature, this paper focuses on the role of phytoplankton in mangrove estuaries in the tropical coastal region and their interdependency. Analysis reveals that there are two-way interactions between phytoplankton and mangrove estuaries. The POM enriched water in mangrove estuaries acts as an ideal medium for phytoplankton succession. Simultaneously, diversified phytoplankton assemblages play a significant role in the food web of the estuarine mangrove ecosystem. Biomass and diversity of phytoplankton are influenced by nutrient and environmental parameters in mangrove estuaries and, concurrently, phytoplankton play a significant role in fish diversity and primary production in the same system. This review reveals that the inconsistent relationships between mangroves and coastal production could probably be due to the influence of seasonal changes. This paper unveils the latent potential and role of phytoplankton in tropical mangrove estuaries, which could be a source of thought for future research in this arena.
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Abdulla- Al-Asif,Abu Hena Mustafa Kamal,Hadi Hamli,Mohd Hanafi Idris,Geoffery James Gerusu,Johan Ismail,Md. Khurshid Alam Bhuiyan,Muyassar H. Abualreesh,Najiah Musa,Mohd Effendy Abd Wahid,Manoranjan M 한국해양과학기술원 2022 Ocean science journal Vol.57 No.2
Area of the Coral Triangle (CT), namely Indonesia, Malaysia, Papua New Guinea, Philippines, Solomon Islands, and Timor-Leste, comprises 5.7 million km2 of the Pacific Ocean. It is one of the most bio-diverse marine eco-regions on the planet, as well as a global hotspot for seagrass species. Many sea creatures of this eco-region rely on the seagrass ecosystem, especially dugong species extensively (a total number of 2279 individuals), sea turtles (4–6 species), benthic organisms, and fish. Apart from these ecological services, carbon sequestration (2.6 billion Mg CO2 storage) by the seagrass ecosystem is considerably higher in comparison to terrestrial vegetation. In this paper, we scrutinized previously acknowledged seagrass species distribution, the associated fauna in seagrass meadows, the total carbon sequestration in the Coral Triangle, past and present research conducted on seagrass and other aspects, and major threats to seagrass ecosystems within this biogeographic region. Depending on their different locations, the six CT countries have a minimum of 10 to a maximum of 19 seagrass species that belong to four distinct families (Hydrocharitaceae, Cymodoceaceae, Zosteraceae, and Ruppiaceae) and cover almost 58,550.63 km2. While a total of 21 species of seagrass have been found throughout this eco-region, very little research has been conducted to assess the overall status of the ecosystems within this eco-region. Seagrass ecosystems and services from these habitats within the Coral Triangle are also associated with 100 million human inhabitants, who are supported directly or indirectly by the resources of this ecosystem. These inhabitants may cause considerable disturbance to seagrass ecosystems. For the long-term sustainable management and conservation of these ecosystems, two types of threats, namely local human activities and global transboundary issues including climate change, have been identified and need to be taken into consideration. In terms of human activities, local threats include water quality deterioration due to sewage and pollutant discharge, agricultural activities mainly from palm oil plantations, over-exploitation of seagrass-associated resources, sediment runoff, and destructive fishing practices. Global threats comprise macro and microplastics, sea-level rise due to climate change, global warming, and acidification. Further study of social, cultural, and economic interaction between the local inhabitants and seagrass ecosystems is highly recommended for assessing the ecological and economic contribution of this habitat to the human societies of the Coral Triangle. Despite their importance for human food services and the maintenance of the food web for marine and coastal animals, human activities have a negative impact on seagrass ecosystems around the world, particularly in the Coral Triangle.
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