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Photogrammetric determination of movement speed of invasive Indo-Pacific lionfish in the Florida Keys.
PeerJ
January 2025
Department of Oceanography and Coastal Sciences, Louisiana State University and Agricultural and Mechanical College, Baton Rouge, LA, United States of America.
As a key determinant of how efficiently lionfish ( sp.) locate and capture prey, swimming speed plays a crucial role in shaping the predator-prey interactions and broader ecological dynamics within the invaded ecosystems. Swimming speed on a small temporal and spatial scale is difficult to measure because of the need for precise measurements of both distance and duration of the behavior.
View Article and Find Full Text PDFImproving propulsive efficiency using bio-inspired intermittent locomotion.
J R Soc Interface
January 2025
Laboratoire Matière et Systèmes Complexes, CNRS, Université Paris Cité, Paris, France.
Many swimmers, especially small- to medium-sized animals, use intermittent locomotion that differs from continuous swimming of large species. This type of locomotion, called burst and coast, is often associated with an energetic advantage. In this work, we investigate the intermittent locomotion inspired by fish locomotion but applied to a propeller.
View Article and Find Full Text PDFInsights into spinetail devil ray spatial ecology in the Mediterranean Sea through satellite telemetry.
Sci Rep
January 2025
Tethys Research Institute, Viale G.B. Gadio 2, 20121, Milan, Italy.
To investigate the seasonal migratory behaviour of spinetail devil rays, Mobula mobular, across the Mediterranean Sea, we used satellite telemetry to track nine individuals between 2016 and 2021. The species is listed as Endangered in the IUCN's Red List of Threatened Species and appears to be most vulnerable to fishing impacts when gathering in large assemblages. The only known targeted devil ray fishery harvests significant numbers each winter off Gaza.
View Article and Find Full Text PDFBrief exposure to (-) THC affects zebrafish embryonic locomotion with effects that persist into the next generation.
Sci Rep
January 2025
Departments of Biological Sciences CW-405 Biological Sciences Building, University of Alberta Edmonton, Edmonton, AB, T6G 2E9, Canada.
Cannabis is one of the most widely used drugs, and yet an understanding of its impact on the human brain and body is inconclusive. Medicinal and recreational use of cannabis has increased in the last decade with a concomitant increase in use by pregnant women. The major psychoactive compound in cannabis, Δ-tetrahydrocannabinol (THC), exists in different isomers, with the (-) trans isomer most common.
View Article and Find Full Text PDFBioaccumulation of novel brominated flame retardants in a marine food web: A comprehensive analysis of occurrence, trophic transfer, and interfering factors.
Sci Total Environ
January 2025
International Joint Research Centre for Persistent Toxic Substances (IJRC-PTS), College of Environmental Science and Engineering, Dalian Maritime University, Dalian 116026, PR China. Electronic address:
Although the concept of bioaccumulation for novel brominated flame retardants (NBFRs) is clear, the process and interfering factors of bioaccumulation are still not fully understood. The present study comprehensively evaluated the occurrence, transfer and interfering factors of NBFRs in a marine food web to provide new thought and perspective for the bioaccumulation of these compounds. The occurrence of 17 NBFRs were determined from 8 water, 8 sediment and 303 organism samples collected from Dalian Bay, China.
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