Scientific Papers

The secret to success for sand tiger shark reproduction in aquaria

The secret to success for sand tiger shark reproduction in aquaria

Natural environmental conditions and collaborative efforts provide the secret to success for sand tiger shark Carcharias taurus reproduction in aquaria Jennifer Wyffels, Chris Coco, Chris Schreiber, Daniel Palmer, Tonya Clauss, Frank Bulman, Robert George, Craig Pelton, Kevin Feldheim, Tim Handsel ABSTRACT: Sand tiger sharks are an iconic large shark species held in aquaria worldwide. They

A review of potential taxonomic barriers to the effective management of Gulf elasmobranch fisheries

A review of potential taxonomic barriers to the effective management of Gulf elasmobranch fisheries

A review of potential taxonomic barriers to the effective management of Gulf elasmobranch fisheries Aaron C. Henderson ABSTRACT: Species-specific biological data are commonly combined with fishery operational data to model exploited stocks and determine appropriate levels of exploitation. However, this approach to fishery management is predicated using the ability of fishery data collectors to correctly

Species composition of the largest shark fin retail-market in mainland China

Species composition of the largest shark fin retail-market in mainland China

Species composition of the largest shark fin retail-market in mainland China Diego Cardeñosa, Andrew T. Fields, Elizabeth A. Babcock, Stanley K. H. Shea, Kevin A. Feldheim, Demian D. Chapman ABSTRACT: Species-specific monitoring through large shark fin market surveys has been a valuable data source to estimate global catches and international shark fin trade dynamics. Hong

Evolutionary trends of the conserved neurocranium shape in angel sharks

Evolutionary trends of the conserved neurocranium shape in angel sharks

Evolutionary trends of the conserved neurocranium shape in angel sharks (Squatiniformes, Elasmobranchii) Faviel A. López-Romero, Sebastian Stumpf, Cathrin Pfaff, Giuseppe Marramà, Zerina Johanson, Jürgen Kriwet ABSTRACT: Elasmobranchii (i.e., sharks, skates, and rays) forms one of the most diverse groups of marine predators. With a fossil record extending back into the Devonian, several modifications in their

Elasmobranch bycatch distributions and mortality

Elasmobranch bycatch distributions and mortality

Elasmobranch bycatch distributions and mortality: insights from the European tropical tuna purse-seine fishery Lyndsay Clavareau, Philippe S. Sabarros, Lauriane Escalle, Pascal Bach, Francisco J. Abascal, Jon Lopez, Hilario Murua, Pedro J. Pascual Alayon, Maria Lourdes Ramos, Jon Ruiz, Bastien Mérigot ABSTRACT: Despite bycatch of elasmobranch (sharks and rays) being a major concern in most fisheries

Estimating marine protected area network benefits for reef sharks

Estimating marine protected area network benefits for reef sharks

Estimating marine protected area network benefits for reef sharks Gerardo Martín, Mario Espinoza, Michelle Heupel, Colin A. Simpfendorfer ABSTRACT: Animal movement has direct applications in spatial management and conservation planning, yet it is rarely taken into account for the design of natural protected areas. For instance, reef shark species are thought to benefit from marine

Thermal tolerance and hypoxia tolerance are associated in blacktip reef shark neonates

Thermal tolerance and hypoxia tolerance are associated in blacktip reef shark neonates

Thermal tolerance and hypoxia tolerance are associated in blacktip reef shark (Carcharhinus melanopterus) neonates Ian A. Bouyoucos, Phillip R. Morrison, Ornella C. Weideli, Eva Jacquesson, Serge Planes, Colin A. Simpfendorfer, Colin J. Brauner, Jodie L. Rummer ABSTRACT: Thermal dependence of growth and metabolism can influence thermal preference and tolerance in marine ectotherms, including threatened and

First records of the seven‐gilled and six‐gilled sharks found in the Galápagos Marine Reserve

First records of the seven‐gilled and six‐gilled sharks found in the Galápagos Marine Reserve

First records of the seven‐gilled Notorynchus cepedianus and six‐gilled Hexanchus griseus sharks (Chondrichthyes: Hexanchiformes: Hexanchidae) found in the Galápagos Marine Reserve Salome Buglass, Shannon Nagy, David Ebert, Paulina Sepa, Alan Turchik, Katherine L. C. Bell, Fernando Rivera, Jonatha Giddens ABSTRACT: This study reports the first records of cowsharks (Hexanchidae) in the Galápagos Islands, in particular

Why the Kanak Don’t Fear Sharks

Why the Kanak Don’t Fear Sharks

Why the Kanak Don’t Fear Sharks: Myths as a Coherent but Dangerous Mirror of Nature Eric Clua, Jean Guiart ABSTRACT: This study focuses on the important role of sharks in the Melanesian mythology. Based on unpublished stories essentially originating from New Caledonia, we show how strong the links are between myths and the physical environment

Personality‐driven life history trade‐offs differ in two subpopulations of free‐ranging predators

Personality‐driven life history trade‐offs differ in two subpopulations of free‐ranging predators

Personality‐driven life history trade‐offs differ in two subpopulations of free‐ranging predators Félicie Dhellemmes, Jean‐Sébastien Finger, Matthew J. Smukall, Samuel H. Gruber, Tristan L. Guttridge, Kate L. Laskowski, Jens Krause ABSTRACT: Consistent individual differences in behaviour (i.e. personality) can be explained in an evolutionary context if they are favoured by life history trade‐offs as conceptualized in

The effects of digesting a urea-rich meal on North Pacific spiny dogfish

The effects of digesting a urea-rich meal on North Pacific spiny dogfish

The effects of digesting a urea-rich meal on North Pacific spiny dogfish (Squalus acanthias suckleyi) J. Lisa Hoogenboom, Alyssa M. Weinrauch, Chris M. Wood, W. Gary Anderson ABSTRACT: Marine elasmobranchs are nitrogen-limited owing to the requirement of nitrogen for both somatic growth and urea-based osmoregulation, and due to the loss of urea across the gills

New mode of oviparous reproduction in sharks

New mode of oviparous reproduction in sharks

Discovery of a new mode of oviparous reproduction in sharks and its evolutionary implications Nakaya, K., White, W.T. & Ho, H. ABSTRACT: Two modes of oviparity are known in cartilaginous fishes, (1) single oviparity where one egg case is retained in an oviduct for a short period and then deposited, quickly followed by another egg

Microplastics in demersal sharks of the North-East Atlantic

Microplastics in demersal sharks of the North-East Atlantic

Investigating the presence of microplastics in demersal sharks of the North-East Atlantic Kristian J. Parton, Brendan J. Godley, David Santillo, Muhammad Tausif, Lucy C. M. Omeyer, Tamara S. Galloway ABSTRACT: Microplastic pollution is ubiquitous in the marine environment and is ingested by numerous marine species. Sharks are an understudied group regarding their susceptibility to microplastic

Global status and conservation potential of reef sharks

Global status and conservation potential of reef sharks

Global status and conservation potential of reef sharks MacNeil, M.A., Chapman, D.D., Heupel, M. et al. ABSTRACT: Decades of overexploitation have devastated shark populations, leaving considerable doubt as to their ecological status1,2. Yet much of what is known about sharks has been inferred from catch records in industrial fisheries, whereas far less information is available

Identification of a nursery area for the critically endangered hammerhead shark

Identification of a nursery area for the critically endangered hammerhead shark

Identification of a nursery area for the critically endangered hammerhead shark (Sphyrna lewini ) amid intense fisheries in the southern Gulf of Mexico G.A. Cuevas‐Gómez, J.C. Pérez‐Jiménez, I. Méndez‐Loeza, M. Carrera‐Fernández, J.L. Castillo‐Géniz ABSTRACT: Since the 1980s, there has been growing concern in the Mexican Atlantic regarding high catches of neonate and juvenile sharks in