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Maternal Offloading of Organic Contaminants in White Sharks
Published on 30. April 2013 Evidence of Maternal Offloading of Organic Contaminants in White Sharks (Carcharodon carcharias) Christopher G. Mull, Kady Lyons, Mary E. Blasius, Chuck Winkler, John B. O’Sullivan, Christopher G. Lowe ABSTRACT: Organic contaminants were measured in young of the year (YOY) white sharks (Carcharodon carcharias) incidentally caught in southern California between 2005
Captures and Diet of Three Sharks Species in the Veracruz Reef System
Published online in April 2013 Captures and Diet of Three Sharks Species in the Veracruz Reef System José Otilio Avendaño-Alvarez, Horacio Pérez-España, David Salas-Monreal, Emiliano García-Rodríguez ABSTRACT: During July to November of 2008, the artisanal fisheries captured juvenile sharks belonging to the Carcharhinus and Sphyrnidae family in the Veracruz Reef System (south western Gulf of
Behavioural and genetic mating system of the sand tiger shark
Published on 01. May 2013 The behavioural and genetic mating system of the sand tiger shark, Carcharias taurus, an intrauterine cannibal Demian D. Chapman, Sabine P. Wintner, Debra L. Abercrombie, Jimiane Ashe, Andrea M. Bernard, Mahmood S. Shivji and Kevin A. Feldheim ABSTRACT: Sand tiger sharks (Carcharias taurus) have an unusual mode of reproduction, whereby
Age, growth and reproductive biology of the rough skate off the Gulf of Gabes
Published online on 29. April 2013 Age, growth and reproductive biology of the rough skate, Raja radula (Chondrichthyes: Rajidae), off the Gulf of Gabes (southern Tunisia, central Mediterranean) Hasna Kadri, Sondes Marouani, Mohamed Nejmeddine Bradai and Abderrahmen Bouaïn ABSTRACT: Age, growth and reproductive parameters were estimated for Raja radula from the Gulf of Gabes (southern
Distribution and trend in abundance of the porbeagle in the southern hemisphere
Published online on 24. April 2013 Distribution and trend in abundance of the porbeagle (Lamna nasus) in the southern hemisphere Yasuko Semba, Kotaro Yokawa, Hiroaki Matsunaga and Hiroshi Shono ABSTRACT: Knowledge of a species’ distribution is an important element in its effective management and conservation. The porbeagle (Lamna nasus) is a common by-catch shark in
Surveys of white sharks off bathing beaches in Algoa Bay
Published online on 24. April 2013 Surveys of white sharks (Carcharodon carcharias) off bathing beaches in Algoa Bay, South Africa M. L. Dicken and A. J. Booth ABSTRACT: The present study provides information on the existence of a possible inshore nursery area for white sharks (Carcharodon carcharias) in Algoa Bay, South Africa. In total, 43
Dissertation: Feeding Ecology of Skates and Rays in Delaware
1-1-2013 Feeding Ecology of Skates and Rays in Delaware and Narragansett Bays John Andrew Szczepanski Jr. ABSTRACT: Skates and rays are an integral part of the trophic structure of many estuarine ecosystems. However, there are many aspects of the fisheries biology of these species that require further exploration. For example, few comparisons have been done
Thesis: Survival of the blacktip shark
1-1-2013 Survival of the blacktip shark, Carcharhinus limbatus William A. Swinsburg ABSTRACT: Proportional survival (S) is a crucial life-history parameter in population dynamics, natural selection, and management of harvested stocks; variations in survival due to age, sex, or geographic region may have large effects on the success of managing fish stocks. The blacktip shark, Carcharhinus
The determination of maturity stages in male elasmobranchs
Published online on 19. April 2013 The determination of maturity stages in male elasmobranchs (Chondrichthyes) using a segmented regression of clasper length on total length Angel Manuel Segura, Andrés Conrado Milessi, Rodolfo Vögler, Felipe Galvan-Magaña, Vito Muggeo ABSTRACT: A novel statistical method for estimating the stages of maturity in male sharks and skates based on
Ageing of shortspine spurdog in the Andaman Sea of Thailand
Published on 04. April 2013 Ageing of shortspine spurdog in the Andaman Sea of Thailand Kanokwan Paiboonleeskul, Suppaluk Romratanapun and Thanitha Thapanand-Chaidee ABSTRACT: Shortspine spurdogs( Squalus mitsukurii ) were sampled from the Andaman Sea of Thai waters with bottom vertical longline and deep sea traps. The total length (TL) of the individual sample was measured
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;
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