نتایج جستجو برای: longline
تعداد نتایج: 684 فیلتر نتایج به سال:
Longline sampling (83 sets) supplemented with 6 pop-off archival transmitting (PAT) tag deployments were used to characterize vertical habitat use by Caribbean reef sharks Carcharhinus perezi at Glover’s Reef atoll, Belize. Longline catch-per-unit-effort (CPUE) in 2 shallow reef habitats (lagoon <18 m depth, fore-reef <40 m depth) underwent significant nocturnal increases for sharks larger than...
Wildlife and fisheries management are based upon economics: the law of supply and demand controls the direction of commercial fisheries. In the U.S. pelagic longline fishery, one example of a bycatch species that has received little research attention because of its lower economic value is the escolar (Lepidocybium flavobrunneum). Given its importance as a secondary market species, the main obj...
Light-stick is a light attractor used in longline fishing which is often dumped or lost into the ocean after used, becoming a potential pollutant to marine organisms. In the present study, toxicity was evaluated by exposing Artemia to light-stick contents. The effects were observed on the survival of nauplii and hatchability of cysts. The LC50 was 0.063mLL−1 after 24h of exposure, whilst hatcha...
Macroalgae can be processed into various products with the potential to substitute land-based crops; their cultivation bioextract nutrients from coastal waters. This study investigated economic cost and environmental impacts of multiple seaweed platforms, strategies, processing/end-use strategies through techno-economic analysis (TEA) life cycle assessment (LCA) a focus on Saccharina latissima ...
BACKGROUND Providing sufficient oxygenation and ventilation is of paramount importance for the survival of emergency patients. Therefore, advanced airway management is one of the core tasks for every rescue team. Endotracheal intubation is the gold standard to secure the airway in the prehospital setting. This review aims to highlight special considerations for advanced airway management preced...
Fisheries bycatch is a recognized threat to marine megafauna. Addressing bycatch of pelagic species however is challenging owing to the dynamic nature of marine environments and vagility of these organisms. In order to assess the potential for species to overlap with fisheries, we propose applying dynamic habitat models to determine relative probabilities of species occurrence for specific ocea...
This document sets out a draft framework for an assessment of the impact of ICCAT fisheries on seabirds to facilitate discussion by the ICCAT Ecosystems Subcommittee. The assessment could involve two phases, the first relating to data gathering, mapping and summation, and the second to the incorporation of these empirical data and analyses in the development and application of more complex mode...
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