Scientific Papers

First report on metal and metalloid contamination of Ampullae of Lorenzini in sharks

First report on metal and metalloid contamination of Ampullae of Lorenzini in sharks

First report on metal and metalloid contamination of Ampullae of Lorenzini in sharks: A case study employing the Brazilian sharpnose shark Rhizoprionodon lalandii from Southeastern Brazil as an ecotoxicological model Isabel Quental Willmer, Natascha Wosnick, Rafael Christian Chávez Rocha, Tatiana Dillenburg, Saint’Pierre, Marcelo Vianna, Rachel Ann Hauser-Davis ABSTRACT: Metal contamination has never been assessed in

Global-Scale Environmental Niche and Habitat of Blue Shark by Size and Sex

Global-Scale Environmental Niche and Habitat of Blue Shark by Size and Sex

Global-Scale Environmental Niche and Habitat of Blue Shark (Prionace glauca) by Size and Sex: A Pivotal Step to Improving Stock Management Jean-Noël Druon, Steven Campana, Frederic Vandeperre, Fábio H. V. Hazin, Heather Bowlby, Rui Coelho, Nuno Queiroz, Fabrizio Serena, Francisco Abascal, Dimitrios Damalas, Michael Musyl, Jon Lopez, Barbara Block, Pedro Afonso, Heidi Dewar, Philippe S.

Thirty-five years of tiger shark Galeocerdo cuvier relative abundance near Bimini, Bahamas

Thirty-five years of tiger shark Galeocerdo cuvier relative abundance near Bimini, Bahamas

Thirty-five years of tiger shark Galeocerdo cuvier relative abundance near Bimini, Bahamas, and the Southeastern United States with a comparison across jurisdictional bounds Matthew J. Smukall, John Carlson, Steven T. Kessel, Tristan L. Guttridge, Félicie Dhellemmes, Andrew C. Seitz, Samuel Gruber ABSTRACT: Abundances of large sharks are reported to have declined worldwide, and in response

Changes in genetic composition of tiger sharks and potential loss of a south-eastern Australia population

Changes in genetic composition of tiger sharks and potential loss of a south-eastern Australia population

Retrospective genomics highlights changes in genetic composition of tiger sharks (Galeocerdo cuvier) and potential loss of a south-eastern Australia population Alice Manuzzi, Belen Jiménez-Mena, Romina Henriques, Bonnie J. Holmes, Julian Pepperell, Janette Edson, Mike B. Bennett, Charlie Huveneers, Jennifer R. Ovenden, Einar E. Nielsen ABSTRACT: Over the last century, many shark populations have declined, primarily

Acoustic discrimination in the grey bamboo shark

Acoustic discrimination in the grey bamboo shark

Acoustic discrimination in the grey bamboo shark Chiloscyllium griseum Tamar Poppelier, Jana Bonsberger, Boris Woody Berkhout, Reneé Pollmanns, Vera Schluessel ABSTRACT: Cognitive abilities of sharks are well developed and comparable to teleosts and other vertebrates. Most studies exploring elasmobranch cognitive abilities have used visual stimuli, assessing a wide range of discrimination tasks, memory retention and

Cookiecutter shark bite patterns on pelagic fishes

Cookiecutter shark bite patterns on pelagic fishes

Cookiecutter shark (Isistius spp.) bite patterns on pelagic fishes in aggregated schools in the western equatorial Atlantic Ocean Rafael Menezes, João Paulo Dantas Marinho, Grazielly Campos de Mesquita, Guelson Batista da Silva ABSTRACT: Cookiecutter sharks are pelagic ectoparasites that feed on pieces of flesh from large marine animals. Knowledge on these sharks is still rather

Mitochondrial DNA Reveals Small-scale Population Structure in the California Horn Shark

Mitochondrial DNA Reveals Small-scale Population Structure in the California Horn Shark

Little Sharks in a Big World: Mitochondrial DNA Reveals Small-scale Population Structure in the California Horn Shark (Heterodontus francisci) Sean J Canfield, Felipe Galván-Magaña, Brian W Bowen ABSTRACT: The California horn shark (Heterodontus francisci) is a small demersal species distributed from southern California and the Channel Islands to Baja California and the Gulf of California.

Global shark species richness is more constrained by energy than evolutionary history

Global shark species richness is more constrained by energy than evolutionary history

Global shark species richness is more constrained by energy than evolutionary history Emmaline R. Sheahan, Gavin J.P. Naylor, Daniel J. McGlinn ABSTRACT: Aim To examine the support of two ecological diversity theories- The Ecological Limits Hypothesis (ELH) and the Niche Conservatism Hypothesis (NCH) – in explaining patterns of global shark diversity. Location Global scale and

Heterodonty and ontogenetic shift dynamics in the dentition of the tiger shark

Heterodonty and ontogenetic shift dynamics in the dentition of the tiger shark

Heterodonty and ontogenetic shift dynamics in the dentition of the tiger shark Galeocerdo cuvier (Chondrichthyes, Galeocerdidae) Julia Türtscher, Patrick L. Jambura, Faviel A. López-Romero, René Kindlimann, Keiichi Sato, Taketeru Tomita, Jürgen Kriwet ABSTRACT: The lifelong tooth replacement in elasmobranch fishes (sharks, rays and skates) has led to the assemblage of a great number of teeth

Elasmobranch diversity across a remote coral reef atoll

Elasmobranch diversity across a remote coral reef atoll

Elasmobranch diversity across a remote coral reef atoll revealed through environmental DNA metabarcoding Nicholas Dunn, Vincent Savolainen, Sam Weber, Samantha Andrzejaczek, Chris Carbone, David Curnick ABSTRACT: As elasmobranchs are becoming increasingly threatened, efficient methods for monitoring the distribution and diversity of elasmobranch populations are required. Environmental DNA (eDNA) metabarcoding is a progressively applied technique that

Three complete mitochondrial genomes of shortfin mako sharks

Three complete mitochondrial genomes of shortfin mako sharks

Three complete mitochondrial genomes of shortfin mako sharks, Isurus oxyrinchus, from the Atlantic and Pacific Oceans Marissa R. Mehlrose, Andrea M. Bernard, Kimberly A. Finnegan, Lauren E. Krausfeldt, Jose V. Lopez & Mahmood S. Shivji ABSTRACT: We present complete mitogenome sequences of three shortfin mako sharks (Isurus oxyrinchus) sampled from the western Pacific, and eastern

Bycatch of a Critically Endangered Shark Glyphis glyphis in a Crab Pot Fishery

Bycatch of a Critically Endangered Shark Glyphis glyphis in a Crab Pot Fishery

Bycatch of a Critically Endangered Shark Glyphis glyphis in a Crab Pot Fishery: Implications for Management Richard D. Pillans, Gary C. Fry, Geoff D. Carlin, Toby A. Patterson ABSTRACT: The speartooth shark Glyphis glyphis is a Critically Endangered whaler shark known from a few tropical river systems in northern Australia and Papua New Guinea. There

Effects of shark tourism on the yellowtail kingfish

Effects of shark tourism on the yellowtail kingfish

Effects of shark tourism on the daily residency and movements of a non-focal pelagic teleost Thomas M. Clarke, Sasha K. Whitmarsh, Ross G. Dwyer, Vinay Udyawer, Hugh Pederson, Charlie Huveneers ABSTRACT: Marine wildlife tourism is increasing in popularity, with operations targeting a wide range of taxa globally. While previous studies have mostly focused on assessing

Unreported discards of internationally protected pelagic sharks

Unreported discards of internationally protected pelagic sharks

Unreported discards of internationally protected pelagic sharks in a global fishing hotspot are potentially large Gonzalo Mucientes, Marisa Vedor, David W. Sims, Nuno Queiroz ABSTRACT: Global abundances of oceanic pelagic sharks have declined due to overfishing. Internationally protected shark species remain at risk due to indiscriminate bycatch in longline fisheries with under-reported catches affecting reliability

Field metabolic rate and prey consumption rate of the Greenland shark

Field metabolic rate and prey consumption rate of the Greenland shark

Life in the slow lane: field metabolic rate and prey consumption rate of the Greenland shark (Somniosus microcephalus) modelled using archival biologgers Eric Ste-Marie, Yuuki Y. Watanabe, Jayson M. Semmens, Marianne Marcoux, Nigel E. Hussey ABSTRACT: Field metabolic rate (FMR) is a holistic measure of metabolism representing the routine energy utilization of a species living