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A small underwater object detection model with enhanced feature extraction and fusion.
Sci Rep
January 2025
China Institute of Water Resources and Hydropower Research, Beijing, 100048, China.
In the underwater domain, small object detection plays a crucial role in the protection, management, and monitoring of the environment and marine life. Advancements in deep learning have led to the development of many efficient detection techniques. However, the complexity of the underwater environment, limited information available from small objects, and constrained computational resources make small object detection challenging.
View Article and Find Full Text PDFDownscaling global reference points to assess the sustainability of local fisheries.
Conserv Biol
January 2025
Thriving Oceans Research Hub, School of Geosciences, University of Sydney, Camperdown, NSW, Australia.
Multispecies coral reef fisheries are typically managed by local communities who often lack research and monitoring capacity, which prevents estimation of well-defined sustainable reference points to perform locally relevant fishery assessments. Recent research modeling coral reef fisheries globally has estimated multispecies sustainable reference points (i.e.
View Article and Find Full Text PDFEnergy-Efficient and Trust-Based Autonomous Underwater Vehicle Scheme for 6G-Enabled Internet of Underwater Things.
Sensors (Basel)
January 2025
Institute of Intelligent Manufacturing Technology, Shenzhen Polytechnic University, Shenzhen 518000, China.
This paper introduces a novel energy-efficient lightweight, void hole avoidance, localization, and trust-based scheme, termed as Energy-Efficient and Trust-based Autonomous Underwater Vehicle (EETAUV) protocol designed for 6G-enabled underwater acoustic sensor networks (UASNs). The proposed scheme addresses key challenges in UASNs, such as energy consumption, network stability, and data security. It integrates a trust management framework that enhances communication security through node identification and verification mechanisms utilizing normal and phantom nodes.
View Article and Find Full Text PDFFrom local knowledge and science to policy: Lessons learned from Fiji's valuable grouper fisheries.
J Fish Biol
January 2025
Fiji Country Program, Wildlife Conservation Society, Suva, Fiji.
Pacific Island communities are heavily dependent on fisheries for subsistence and livelihoods. Yet, despite their importance, coastal fisheries are poorly managed and commercial pressures increasingly threaten them. Groupers (Epinephelidae) are exceptionally vulnerable to overexploitation due to aspects of their biology while their economic value makes them a prime target for commerce.
View Article and Find Full Text PDFThe movement and distribution of pregnant spotted ragged-tooth sharks, , in the iSimangaliso Wetland Park, South Africa.
PeerJ
December 2024
Wildtrust, Pietermaritzburg, KwaZulu-Natal, South Africa.
The spotted ragged-tooth shark, , is widely distributed in subtropical continental coastal seas. In South Africa, it is commonly found along the entire south and east coasts, including the iSimangaliso Wetland Park (IWP) in the far north, which is the largest Marine Protected Area on the South African coast. Pregnant females occur there for much of the year, with the largest aggregations in summer.
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