Results 81 to 90 of about 23,975 (237)

Inferring activity patterns of aquatic animals from single‐receiver acoustic telemetry setups

Methods in Ecology and Evolution
Acoustic telemetry has become an essential tool for studying activity patterns of animals in aquatic environments. Activity is typically recorded using transmitters with integrated sensors or dense receiver arrays for positional tracking. While effective,
Eneko Aspillaga, Josep Alós, Ignacio A. Catalán, Vicenç Moltó, Jordi Abad‐Platas, David Villegas‐Ríos   +5 more
doaj   +1 more source

Surgical tagging of Atlantic mackerel (Scomber scombrus): electroanaesthesia and survival in captivity and the field

Journal of Fish Biology, EarlyView.
Abstract Electroanaesthesia using electric fish handling gloves induced rapid and reversible sedation of Atlantic mackerel (Scomber scombrus) during surgical tagging without observable adverse effects on behaviour or tag retention. In the laboratory, survival analyses revealed that longer handling times and smaller body sizes significantly reduced ...
Caliyena R. Brown, Morgan L. Piczak, Elisabeth Van Beveren, John Batt, Robert J. Lennox   +4 more
wiley   +1 more source

RAD-Seq Analysis and in situ Monitoring of Nassau Grouper Reveal Fine-Scale Population Structure and Origins of Aggregating Fish

Frontiers in Marine Science, 2020
Nassau grouper (Epinephelus striatus, Bloch 1792) are globally critically endangered and an important fishery species in The Commonwealth of The Bahamas (hereafter The Bahamas) and parts of the Caribbean, with an urgent need for better management and ...
Krista D. Sherman, Krista D. Sherman, Krista D. Sherman, Krista D. Sherman, Josephine R. Paris, Robert Andrew King, Karen A. Moore, Craig P. Dahlgren, Craig P. Dahlgren, Lindy C. Knowles, Kristine Stump, Kristine Stump, Charles R. Tyler, Jamie R. Stevens   +13 more
doaj   +1 more source

The lake sink in Atlantic salmon smolt downstream migration

Journal of Fish Biology, EarlyView.
Abstract The objective was to estimate the movements and survival of Atlantic salmon smolts migrating downstream through a river–lake system consisting of two large, interconnected lakes (areas 58.2 and 13.2 km2, minimum crossing distance 29 and 16 km).
Jan Heggenes, Eivind Schartum, Torgeir Havn, Finn Økland   +3 more
wiley   +1 more source

First record of an Odontaspidid shark in Ascension Island waters [PDF]

, 2019
The occurrence of the poorly understood shark species Odontapsis ferox is reported at an oceanic seamount in the central south Atlantic, within the Exclusive Economic Zone of Ascension Island.
Burgess, George H., Richardson, Andrew J., Shepherd, Charles M., Weber, Sam B.   +3 more
core   +2 more sources

Effects of the angle of head‐down tilt on dynamic cerebral autoregulation during combined exposure to cephalad fluid shift and mild hypercapnia

Experimental Physiology, EarlyView.
Abstract Astronauts experience combined exposure to a cephalad fluid shift and mild hypercapnia during space missions, potentially contributing to health problems. Such combined exposure may weaken dynamic cerebral autoregulation. The magnitude of cephalad fluid shift varies between individuals, and dynamic cerebral autoregulation may be affected more ...
Tomokazu Kato, Yojiro Ogawa, Ken‐ichi Iwasaki   +2 more
wiley   +1 more source

Assessing the potential of acoustic telemetry to underpin the regional management of basking sharks (Cetorhinus maximus)

Animal Biotelemetry
Acoustic telemetry can provide valuable space-use data for a range of marine species. Yet the deployment of species-specific arrays over vast areas to gather data on highly migratory vertebrates poses formidable challenges, often rendering it impractical.
James Thorburn, Patrick C. Collins, Amy Garbett, Heather Vance, Natasha Phillips, Alan Drumm, Joseph Cooney, Catherine Waters, Niall Ó’Maoiléidigh, Emmett Johnston, Haley R. Dolton, Simon Berrow, Graham Hall, Jackie Hall, Diego Delvillar, Ross McGill, Fred Whoriskey, Nann A. Fangue, Alexandra G. McInturf, Andrew L. Rypel, Richard Kennedy, Jessie Lilly, Jessica R. Rodger, Colin E. Adams, Nienke C. F. van Geel, Denise Risch, Lorna Wilkie, Suzanne Henderson, Paul A. Mayo, Paul J. Mensink, Matthew J. Witt, Lucy A. Hawkes, A. Peter Klimley, Jonathan D. R. Houghton   +33 more
doaj   +1 more source

A Reef’s High-Frequency Soundscape and the Effect on Telemetry Efforts: A Biotic and Abiotic Balance

Journal of Marine Science and Engineering
Acoustic telemetry is a tool for tracking animals, but transmitted signals from tagged animals are not always detected. Detection efficiency declines with increasing background noise, which can have both abiotic and biotic sources.
Frank McQuarrie, C. Brock Woodson, Catherine R. Edwards   +2 more
doaj   +1 more source

RRS Discovery Cruise 360, 19 Jan-02 Feb 2011. Trials of the Autosub LR AUV, HyBIS, PELAGRA, Ellsworth Camera and MYRTLE-X Lander systems

, 2011
There were five main objectives for the trials cruise: The first tests of the Autosub Long Range AUV, testing of the HyBIS video guided grab system, testing of the MYRTLE-X Lander systems, testing of a deep camera system for the Lake Ellsworth probe and ...
et al,, McPhail, S.D.
core  

Systolic‐dominant coronary flow in rats and mice: Challenging the diastolic paradigm across conscious and anaesthetized states

Experimental Physiology, EarlyView.
Abstract Extensive research in humans, dogs, rabbits, rats, mice and other mammals has consistently demonstrated that coronary blood flow (CBF) peaks during ventricular diastole. For example, studies using transthoracic Doppler echocardiography in anaesthetized rats and mice, isolated blood‐perfused rat hearts and Doppler probes sutured to the ...
Heidi L. Lujan, Theodore W. Kurtz, Stephen E. DiCarlo   +2 more
wiley   +1 more source