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
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 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 (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 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
Press Release Adam Marshall Minister for Agriculture Minister for Western NSW 12. May 2019 — — — —- —- —- —- SHARKS HOOKED ON SMART DRUMLINES The NSW Government’s SMART drumlines trials have proved a success withthe devices snagging scores of sharks at beaches across Sydney, Newcastle and the South and North Coast. Minister for
Press Release Inland Fisheries Ireland 2nd May 2019 — — — — — — — — — New research published by Inland Fisheries Ireland has revealed how angel shark stocks have declined alarmingly in Irish waters. The study published in ‘Endangered Species Research’, includes long-term angling data which shows how stocks of this ‘Critically Endangered’
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 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 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
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
Citizen science reveals female sand tiger sharks (Carcharias taurus) exhibit signs of site fidelity on shipwrecks Avery B. Paxton, Erica Blair, Camryn Blawas, Michael H. Fatzinger, Madeline Marens, Jason Holmberg, Colin Kingen, Tanya Houppermans, Mark Keusenkothen, John McCord, Brian R. Silliman, Linda M. Penfold Ecological Society of America, Ecology 00(00):e02687, DOI 10.1002/ecy.2687 SOURCE