Occurrence of White Sharks in Hawaiian Waters

Accepted on 07. March 2013 Occurrence of White Sharks (Carcharodon carcharias) in Hawaiian Waters Kevin Weng and Randy Honebrink ABSTRACT: White sharks (Carcharodon carcharias) have been known in Hawaii (~158°W, 22°N) since the time of ancient Hawaiians. We compiled sightings and records from 1926 to the present (4 females, 2 males, and 8 unknown sex;

Teens catch great white shark off South Florida

Linking sensory biology and fisheries bycatch reduction in elasmobranch fishes

Published on 08. April 2013 Linking sensory biology and fisheries bycatch reduction in elasmobranch fishes: a review with new directions for research Laura K. Jordan, John W. Mandelman, D. Michelle McComb, Sonja V. Fordham, John K. Carlson, and Timothy B. Werner ABSTRACT: Incidental capture, or bycatch, in fisheries represents a substantial threat to the sustainability

Shark predation on cephalopods in Mexico and Ecuador

Published online on 09. April 2013 Shark predation on cephalopods in the Mexican and Ecuadorian Pacific Ocean Felipe Galván-Magaña, Carlos Polo-Silva, Sandra Berenice Hernández-Aguilar, Alejandro Sandoval-Londoño, Maria Ruth Ochoa-Díaz, Nallely Aguilar-Castro, David Castañeda-Suárez, Alejandra Cabrera Chavez-Costa, Álvaro Baigorrí-Santacruz, Yassir Eden Torres-Rojas, Leonardo Andrés Abitia-Cárdenas ABSTRACT: Pelagic predators such as sharks have been shown to be

Microsatellite Analyses of Blacktip Reef Sharks in a Fragmented Environment

Published on 09. April 2013 Microsatellite Analyses of Blacktip Reef Sharks (Carcharhinus melanopterus) in a Fragmented Environment Show Structured Clusters Vignaud T, Clua E, Mourier J, Maynard J, Planes S ABSTRACT: The population dynamics of shark species are generally poorly described because highly mobile marine life is challenging to investigate. Here we investigate the genetic

The first confirmed cases of full albinism in rajid species

Published on 04. April 2013 The first confirmed cases of full albinism in rajid species Ball, R. E., Jones, C. S., Lynghammar, A., Noble, L. R. and Griffiths, A. M. ABSTRACT: Three albino skate specimens (Rajidae) were captured from the North Sea and English Channel between 2008 and 2011. Using DNA barcoding (COI gene) and

New eco study looks at Great white shark behavior

In a new study published in PLOS ONE titled, "White sharks (Carcharodon carcharias) scavenging on whales and its potential role in further shaping the ecology of an apex predator," Captain Chris Fallows from Apex Expeditions collaborated with University of Miami (UM) scientists Dr. Neil Hammerschlag and Austin Gallagher, to explore the behaviors of Great white sharks scavenging on dead...

White Sharks Scavenging on Whales and Its Role in Further Shaping the Ecology of an Apex Predator

Published on 09. April 2013 White Sharks (Carcharodon carcharias) Scavenging on Whales and Its Potential Role in Further Shaping the Ecology of an Apex Predator Fallows C, Gallagher AJ, Hammerschlag N ABSTRACT: Scavenging, a result of a temporary pulse of resources, occurs in virtually all ecosystems containing carnivores, and is an important energy transfer pathway

Young basking shark caught off Sicily

MMO Guidance on the protection of sharks, skates and rays

Guidance on shark, skate and ray species protected by fisheries and wildlife legislation By the Marine Management Organisation April 2013 We have produced guidance for commercial and recreational fishermen who may catch shark, skate and ray species (collectively known as elasmobranchs), and markets, merchants or any premises who may handle these species. It provides details

3,5 metres long shark skeleton found in China

JENSEN BEACH FLORIDA – A shark bit the hand of 50-year-old man

A shark bit the hand of 50-year-old man, causing a minor injury. Lifeguards responded at 1:05 p.m. Thursday to a swimmer they perceived as in distress toward the south end of the beach, and when they helped him to shore they learned a shark had bit his hand, Martin County Fire Rescue officials said. The

Sexual dimorphisms of the Ampullae of Lorenzini in the lesser-spotted catshark

Published in May 2013 A study into the sexual dimorphisms of the Ampullae of Lorenzini in the lesser-spotted catshark, Scyliorhinus canicula (Linnaeus, 1758) Neil Crooks, Colin P. Waring ABSTRACT: The Ampullae of Lorenzini can vary in their size, shape and distribution patterns among elasmobranch species. However, no study has compared the ampullary characteristics between the

The influence of gummy sharks on observed fish assemblage structure

Published in April 2013 The influence of gummy sharks, Mustelus antarcticus, on observed fish assemblage structure J. Klages, A. Broad, B. P. Kelaher, A. R. Davis ABSTRACT: Large predatory fish that alter the behaviour of smaller species may affect visual estimates of abundance by making organisms more or less difficult to observe and quantify. To

First record of a bicephalic embryo of smalltail shark

Published on 05. April 2013 First record of a bicephalic embryo of smalltail shark Carcharhinus porosus L. A. Muñoz-Osorio, P. A. Mejía-Falla, A. F. Navia ABSTRACT: This study reports the first bicephalic embryo of smalltail shark Carcharhinus porosus, which was removed from a pregnant female in coastal waters of the tropical eastern Pacific Ocean. The