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Impact of satellite linked radio transmitting tags on the dorsal fin of white sharks
Impact of satellite linked radio transmitting (SLRT) tags on the dorsal fin of subadult and adult white sharks (Carcharodon carcharias) Nasby-Lucas, Nicole; Domeier, Michael L ABSTRACT: Satellite linked radio transmitting (SLRT) tags provide long-term, high accuracy, near real time tracking data for marine wildlife. Adult white sharks, (Carcharodon carcharias Linnaeus, 1758) in the northeastern Pacific
Local drivers of declining shark fisheries in India
Local drivers of declining shark fisheries in India Divya Karnad, Dipani Sutaria, Rima W. Jabado ABSTRACT: This study evaluates local-scale drivers of shark harvests in India, one of the world’s largest shark fishing nations. Focusing on key harbours in the states of Gujarat and Maharashtra, which together contribute 54% of India’s shark harvest, this study
Shark Activity and Congestion of the Surfing Commons
Men in Grey Suits: Shark Activity and Congestion of the Surfing Commons Franklin G. Mixon Jr, Chandini Sankaran ABSTRACT: This study extends recent research on informal property rights at surf breaks by exploring the process through which nature, by establishing conditions conducive (or not) to the presence of sharks, shapes the baseline level of exploitation
Seasonal spatial segregation in blue sharks
Seasonal spatial segregation in blue sharks (Prionace glauca) by sex and size class in the Northeast Pacific Ocean Sara M. Maxwell, Kylie L. Scales, Steven J. Bograd, Dana K. Briscoe, Heidi Dewar, Elliott L. Hazen, Rebecca L. Lewison, Heather Welch, Larry B. Crowder ABSTRACT: Aim Animal tracking can provide unique insights into the ecology and
Testing a susceptibility threshold for risk promotion messages in the shark diving context
Testing a susceptibility threshold for risk promotion messages in the shark diving context Maria Knight Lapinski, Lindsay Neuberger, Katelyn Grayson-Sneed, Meredith L. Gore ABSTRACT: This paper presents the results of two experiments designed to test a susceptibility threshold in the shark cage diving context, positing that persons who are high relative to low sensation-seekers are
Accuracy of visual length estimates of white sharks
Published on 22 May 2019 Eyes on the size: accuracy of visual length estimates of white sharks, Carcharodon carcharias Cameron May, Lauren Meyer, Sasha Whitmarsh, Charlie Huveneers ABSTRACT: Visual estimates have been used extensively to determine the length of large organisms that are logistically challenging to measure. However, there has been little effort to quantify
A characterization of Australian shortfin mako shark anglers
Published on 04. June 2019 A characterization of Australian shortfin mako shark anglers R.P.French, J.M.Lyle, W.M.Twardek, S.J.Cooke, J.M.Semmens ABSTRACT: Understanding the human dimensions of recreational fisheries is critical to the development of effective fisheries management regulations. This study aimed to characterize Australian shortfin mako shark (Isurus oxyrinchus) anglers in terms of their gear use, perceptions
Broad-scale movements of juvenile white sharks in eastern Australia
Published on 04. June 2019 Broad-scale movements of juvenile white sharks Carcharodon carcharias in eastern Australia from acoustic and satellite telemetry B. D. Bruce, D. Harasti, K. Lee, C. Gallen, R. Bradford ABSTRACT: The advent of electronic tagging has seen vast advances in our understanding of marine top-order predator movements over broad spatial scales. However,
Tiger sharks eat songbirds
Tiger sharks eat songbirds: scavenging a windfall of nutrients from the sky J. M. Drymon, K. Feldheim, A. M. V. Fournier, E. A. Seubert, A. E. Jefferson, A. M. Kroetz, S. P. Powers Ecology, 0(0), 2019, ecy.2728 SOURCE
Links Between Fine-Scale Horizontal and Vertical Movement Behaviors in Tiger Sharks
Biologging Tags Reveal Links Between Fine-Scale Horizontal and Vertical Movement Behaviors in Tiger Sharks (Galeocerdo cuvier) Samantha Andrzejaczek, Adrian C. Gleiss, Karissa O. Lear, Charitha B. Pattiaratchi, Taylor K. Chapple, Mark G. Meekan ABSTRACT: An understanding of the role that large marine predators play in structuring trophic flow and nutrient cycling in marine ecosystems requires
Shark depredation and behavioural interactions with fishing gear in a recreational fishery in Western Australia
Shark depredation and behavioural interactions with fishing gear in a recreational fishery in Western Australia J. D. Mitchell, D. L. McLean, S. P. Collin, T. J. Langlois ABSTRACT: Shark depredation, whereby a shark consumes an animal caught by fishing gear, can cause higher mortality for target species, injury to sharks and the loss of catch
The catshark genus Scyliorhinus
The catshark genus Scyliorhinus (Chondrichthyes: Carcharhiniformes: Scyliorhinidae): taxonomy, morphology and distribution KARLA D. A. SOARES, MARCELO R. DE CARVALHO ABSTRACT: The catshark genus Scyliorhinus belongs to the family Scyliorhinidae, the most diverse family of sharks, and currently presents 16 valid species according to most modern accounts. The long history of taxonomic rearrangements and inaccurate descriptions
Genetic population structure and demography of the tiger shark
Genetic population structure and demography of an apex predator, the tiger shark Galeocerdo cuvier Agathe Pirog, Sébastien Jaquemet, Virginie Ravigné, Geremy Cliff, Eric Clua, Bonnie J. Holmes, Nigel E. Hussey, John E. G. Nevill, Andrew J. Temple, Per Berggren, Laurent Vigliola, Hélène Magalon ABSTRACT: Population genetics has been increasingly applied to study large sharks over
Angling records track the near extirpation of angel shark from two Irish hotspots
Angling records track the near extirpation of angel shark Squatina squatina from two Irish hotspots Samuel Shephard, Ciara Wögerbauer, Peter Green, Jim R. Ellis, William K. Roche ABSTRACT: The angel shark Squatina squatina was historically common in coastal waters fromthe British Isles to north-western Africa, including the Mediterranean. Reported commercial land-ings from northern Europe reduced
Non‐trophic impacts from white sharks complicate population recovery for sea otters
Non‐trophic impacts from white sharks complicate population recovery for sea otters Jerry H. Moxley, Teri E. Nicholson, Kyle S. Van Houtan, Salvador J. Jorgensen ABSTRACT: Complex interactions between protected populations may challenge the recovery of whole ecosystems. In California, white sharks (Carcharodon carcharias) mistargeting southern sea otters (Enhydra lutris nereis) are an emergent impact to