Home » Archives
Size Changes within a Southeastern United States Coastal Shark Assemblage: 1975–2018
Size Changes within a Southeastern United States Coastal Shark Assemblage: 1975–2018 Martin T. Benavides, F. Joel Fodrie, Stephen R. Fegley, Giada Bargione ABSTRACT: Harvest may have myriad effects on target species, including a change in population size structure. To assess whether size shifts have occurred among managed coastal species of shark (superorder Selachimorpha), we examined
Distribution Patterns and Abundance of Halmahera Walking Shark in Weda Bay North Maluku
Distribution Patterns and Abundance of Halmahera Walking Shark (Hemiscyllium halmahera) in Weda Bay North Maluku, Indonesia MU’MIN, Mu’min et al. ABSTRACT: The Halmahera walking shark is a nocturnal species that lives at the bottom of waters and is a species endemic to North Maluku. Weda Bay is one of the largest bays on the island
Recreational fishing as a source for the monitoring of a critically endangered shark in southern Brazil
Recreational fishing as a source for the monitoring of a critically endangered shark in southern Brazil Paulo Roberto Santos dos Santos ABSTRACT: This study tested the use of information collected by anglers for the fisheries monitoring of a Critically Endangered shark in southern Brazil. Catch records of Mustelus fasciatus, Critically Endangered at national and global
Temporal partitioning in Port Jackson sharks
Intraspecific variation in diel patterns of rocky reef use suggests temporal partitioning in Port Jackson sharks Nathan Charles Bass, Joanna Day, Tristan L. Guttridge, Nathan A. Knott, Culum Brown ABSTRACT: Limited information exists about the temporal residency patterns of marine predators, especially at the individual level. Temporal partitioning of resources can reduce intra-specific competition, but
Age and growth of the brown-banded bamboo shark
Age and growth of the tropical oviparous shark, Chiloscyllium punctatum in Indonesian waters Fahmi, Kurniawan W, Tibbetts IR, Oktaviyani S, Dudgeon CL, Bennett MB ABSTRACT: The brown-banded bamboo shark, Chiloscyllium punctatum is the most common shark caught in coastal commercial fisheries throughout southeast Asia, yet we lack the life history information necessary for reliable stock
The effectiveness of SMART drumlines as a tool for catching white sharks off NSW
The effectiveness of Shark-Management-Alert-in-Real-Time (SMART) drumlines as a tool for catching white sharks, Carcharodon carcharias, off coastal New South Wales, Australia Rick D. Tate, Brendan P. Kelaher, Craig P. Brand, Brian R. Cullis, Christopher R. Gallen, Stephen D.A. Smith, Paul A. Butcher ABSTRACT: White (Carcharodon carcharias L.), bull (Carcharhinus leucas, Müller & Henle) and tiger
Acanthodian dental development and the origin of gnathostome dentitions
Acanthodian dental development and the origin of gnathostome dentitions Rücklin, M., King, B., Cunningham, J.A. et al. ABSTRACT: Chondrichthyan dentitions are conventionally interpreted to reflect the ancestral gnathostome condition but interpretations of osteichthyan dental evolution in this light have proved unsuccessful, perhaps because chondrichthyan dentitions are equally specialized, or else evolved independently. Ischnacanthid acanthodians are
An environmental DNA assay for detecting shark species involved in human–shark conflicts
Development of an environmental DNA assay for detecting multiple shark species involved in human–shark conflicts in Australia Anthony van Rooyen, Adam D. Miller, Zach Clark, Craig D. H. Sherman, Paul A. Butcher, Justin R. Rizzari, Andrew R. Weeks ABSTRACT: The number of human–shark interactions has increased worldwide during the past decade resulting in injuries and
First record of a potential neonate tiger shark at Cocos Island
First record of a potential neonate tiger shark (Galeocerdo cuvier) at a remote oceanic island in the Eastern Tropical Pacific Marta Cambra, Sergio Madrigal-Mora, Isaac Chinchilla, Geiner Golfín-Duarte, Christopher G. Lowe, Mario Espinoza ABSTRACT: Tiger sharks (Galeocerdo cuvier) play an important ecological role as top predators, yet knowledge of their reproductive ecology is scarce. Here,
Volume of the whale shark
Volume of the whale shark and their mechanism of vertical feeding Taketeru Tomita, Minoru Toda, Kiyomi Murakumo, Kei Miyamoto, Rui Matsumoto, Keiichi Ueda, Keiichi Sato ABSTRACT: The present study provides a noninvasive method to estimate the body volume of sharks (Elasmobranchii, Selachii) using a computational geometric model. This method allows the volume of sharks to
Seasonal occurrence and sexual segregation of great white sharks in Mossel Bay
Seasonal occurrence and sexual segregation of great white sharks Carcharodon carcharias in Mossel Bay, South Africa Hannah R. Milankovic, Nicholas D. Ray, Louise K. Gentle, Christo Kruger, Esther Jacobs, Craig J. Ferreira ABSTRACT: The seasonal occurrence and temporal sexual segregation of great white sharks Carcharodon carcharias have been widely documented in various temperate and sub-tropical
Long-term investment in shark sanctuaries
Long-term investment in shark sanctuaries Demian D Chapman, Khadeeja Ali, M Aaron MacNeil, Michelle R Heupel, Mark Meekan, Euan S Harvey, Colin A Simpfendorfer, Michael R Heithaus ABSTRACT: No abstract available Science. 2021 Apr 30;372(6541):473. DOI: 10.1126/science.abj0147 SOURCE
First detection of critically endangered scalloped hammerhead sharks in Guam in five decades
First detection of critically endangered scalloped hammerhead sharks (Sphyrna lewini) in Guam, Micronesia, in five decades using environmental DNA Alyssa M. Budd, Madalyn K. Cooper, Agnès Le Port, Tom Schils, Matthew S. Mill, Mari E. Deinhart, Roger Huerlimann, Jan M. Strugnell ABSTRACT: Among the hammerhead sharks, scalloped hammerheads (Sphyrna lewini) have undergone the steepest population
Reproductive biology of the swell shark
Reproductive biology of the swell shark Cephaloscyllium ventriosum (Carcharhiniformes: Scyliorhinidae) Stephanie Bernal‐Pérez, Rosa Isabel Ochoa‐Báez, Felipe Galván‐Magaña, Katherin Soto‐López ABSTRACT: The Cephaloscyllium ventriosum shark is present in the artisanal fisheries of elasmobranchs on the western coast of Baja California Sur, Mexico. The main characteristics of the sexual maturation of this species based on individuals captured
Drivers of Spatial Distributions of Basking Shark in the Southwest Pacific
Drivers of Spatial Distributions of Basking Shark (Cetorhinus maximus) in the Southwest Pacific Finucci Brittany, Duffy Clinton A. J., Brough Tom, Francis Malcolm P., Milardi Marco, Pinkerton Matthew H., Petersen Grady, Stephenson Fabrice ABSTRACT: Basking sharks (Cetorhinus maximus) were widely reported throughout New Zealand waters. Once commonly observed, and sometimes in large numbers, basking sharks