Publications

Shark Activity and Congestion of the Surfing Commons

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

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

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

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

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

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

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

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

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

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 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 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

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

Predicting the conservation status of Europe’s Data Deficient sharks and rays

Predicting the conservation status of Europe’s Data Deficient sharks and rays

Predicting the conservation status of Europe’s Data Deficient sharks and rays Rachel H.L. Walls, Nicholas K. Dulvy ABSTRACT: Shark and ray biodiversity is threatened primarily by overfishing and the globalisation of trade, and Europe has been one of the most documented heavily fished regions for a relatively long time. Yet, we have little idea of

Velvet belly lanternshark does not use bacterial luminescence

Velvet belly lanternshark does not use bacterial luminescence

Etmopterus spinax, the velvet belly lanternshark, does not use bacterial luminescence Laurent Duchatelet, Jérôme Delroisse, Patrick Flammang, Jacques Mahillon, Jérôme Mallefet ABSTRACT: Marine organisms are able to produce light using either their own luminous system, called intrinsic bioluminescence, or symbiotic luminous bacteria, called extrinsic bioluminescence. Among bioluminescent vertebrates, Osteichthyes are known to harbor both types