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Reproductive biology of Urotrygon microphthalmum (Batoidea: Urotrygonidae) from north-eastern Brazil
Published online on 23. March 2016 Reproductive biology of Urotrygon microphthalmum (Batoidea: Urotrygonidae) from north-eastern Brazil, tropical west Atlantic Ocean J. Santander-Neto, M. L. G. Araújo, R. P. Lessa ABSTRACT: The reproductive biology of Urotrygon microphthalmum was studied based on specimens caught as by-catch in shrimp (Litopenaeus schmitti, Xiphopenaeus kroyeri, Farfantepenaeus subtilis and Farfantepenaeus brasiliensis)
Evidence that St. Helena island is an important multi-use habitat for whale sharks
Published on 21. March 2016 Evidence that St. Helena island is an important multi-use habitat for whale sharks, Rhincodon typus, with the first description of putative mating in this species Elizabeth Clingham, Judith Brown, Leeann Henry, Annalea Beard, Alistair D Dove ABSTRACT : Preliminary observations of whale shark behavioural ecology are presented from St. Helena,
Reef manta ray life history and demography: is it really all about survival?
Published on 21. March 2016 Reef manta ray life history and demography: is it really all about survival? Isabel M Smallegange, Isabelle BC van der Ouderaa, Yara Tibiriçá ABSTRACT: Background. The trade in gill plates of devil and manta rays has increased greatly over the last two decades. The resulting increased mortality, in addition to
Laterality strength is linked to stress reactivity in Port Jackson sharks
Published online on 02. March 2016 Laterality strength is linked to stress reactivity in Port Jackson sharks (Heterodontus portusjacksoni) Evan E. Byrnes, Catarina Vila Pouca, Culum Brown ABSTRACT : Cerebral lateralization is an evolutionarily deep-rooted trait, ubiquitous among the vertebrates and present even in some invertebrates. Despite the advantages of cerebral lateralization in enhancing cognition
Trophic Ecology of a Predatory Community in a Shallow-Water, High-Salinity Estuary
Published online on 16. March 2016 Trophic Ecology of a Predatory Community in a Shallow-Water, High-Salinity Estuary Assessed by Stable Isotope Analysis Ashley L. Shaw, Bryan S. Frazier, John R. Kucklick, Gorka Sancho ABSTRACT: Estuaries serve as habitats and nurseries for many recreationally and commercially important fishes, often contributing recruits to adult populations that remain
DNA barcoding reveals species composition of sharks and rays in the Indian commercial fishery
Published online on 28. February 2016 DNA barcoding reveals species composition of sharks and rays in the Indian commercial fishery K. K. Bineesh, A. Gopalakrishnan, K. V. Akhilesh, K. A. Sajeela, E. M. Abdussamad, N. G. K. Pillai, V. S. Basheer, J. K. Jena, Robert D. Ward ABSTRACT: DNA barcoding was successfully used for the
Direct numerical simulation of sharkskin denticles in turbulent channel flow
Published online on 15. March 2016 Direct numerical simulation of sharkskin denticles in turbulent channel flow A. Boomsma, F. Sotiropoulos Abstract: The hydrodynamic function of sharkskin has been under investigation for the past 30 years. Current literature conflicts on whether sharkskin is able to reduce skin friction similar to riblets. To contribute insights toward reconciling
Largest global shark biomass found in the northern Galápagos Islands of Darwin and Wolf
Published on 17. March 2016 Largest global shark biomass found in the northern Galápagos Islands of Darwin and Wolf Pelayo Salinas de León, David Acuña-Marrero, Etienne Rastoin, Alan M Friedlander, Mary K Donovan, Enric Sala ABSTRACT: Overfishing has dramatically depleted sharks and other large predatory fishes worldwide except for a few remote and/or well-protected areas.
A complete protocol for the preparation of chondrichthyan skeletal specimens
Published online on 09. March 2016 A complete protocol for the preparation of chondrichthyan skeletal specimens S. Enault, C. Auclair, S. Adnet, M. Debiais-Thibaud ABSTRACT: The skeleton of cartilaginous fishes is notoriously difficult to prepare, and the literature dealing with the subject is extremely rare compared to other vertebrate groups. As a result, chondrichthyan skeletal
Taxonomic status of maskrays of the Neotrygon kuhlii species complex with the description of three new species
Published on 23. February 2016 Taxonomic status of maskrays of the Neotrygon kuhlii species complex (Myliobatoidei: Dasyatidae) with the description of three new species from the Indo-West Pacific Peter R. Last, William T. White, Bernard Séret ABSTRACT: The bluespotted maskray, Neotrygon kuhlii (Müller & Henle, 1841), once thought to be widely distributed in the Indo-West
Preparation, anti-biofouling and drag-reduction properties of a biomimetic shark skin surface
Published online on 02. March 2016 Preparation, anti-biofouling and drag-reduction properties of a biomimetic shark skin surface Xia Pu, Guangji Li, Hanlu Huang ABSTRACT: Shark skin surfaces show non-smoothness characteristics due to the presence of a riblet structure. In this study, biomimetic shark skin was prepared by using the polydimethylsiloxane (PDMS)-embedded elastomeric stamping (PEES) method.
Reproductive parameters of the Pacific angel shark
Published online on 02. March 2016 Reproductive parameters of the Pacific angel shark Squatina californica (Selachii: Squatinidae) A. F. Romero-Caicedo, F. Galván-Magaña, A. Hernández-Herrera, M. Carrera-Fernández ABSTRACT: Reproductive characteristics of the Pacific angel shark, Squatina californica, were evaluated from 420 specimens obtained from the artisanal fishery in La Paz Bay, Gulf of California, Mexico. Females
Use of Photo-Identification and Mark-Recapture Methodology to Assess Basking Shark Populations
Published on 01. March 2016 Use of Photo-Identification and Mark-Recapture Methodology to Assess Basking Shark (Cetorhinus maximus) Populations Mauvis A. Gore, Peter H. Frey, Rupert F. Ormond, Holly Allan, Gabriella Gilkes ABSTRACT : Following centuries of exploitation, basking sharks (Cetorhinus maximus) are considered by IUCN as Endangered in the Northeast Atlantic, where they have now
Seasonal and life-stage variation in the reproductive ecology of the tiger shark at a protected female-dominated site
Published online on 22. February 2016 Seasonal and life-stage variation in the reproductive ecology of a marine apex predator, the tiger shark Galeocerdo cuvier, at a protected female-dominated site James A. Sulikowski, Carolyn R. Wheeler, Austin J. Gallagher, Bianca K. Prohaska, Joseph A. Langan, Neil Hammerschlag ABSTRACT: Advancing our knowledge of the reproductive biology and
Multimodel approaches in shark and ray growth studies
Published online on 23. February 2016 Multimodel approaches in shark and ray growth studies: strengths, weaknesses and the future Jonathan J Smart, Andrew Chin, Andrew J Tobin, Colin A Simpfendorfer ABSTRACT: Multimodel frameworks are common in contemporary elasmobranch growth literature. These techniques offer a proposed improvement over individual growth functions by incorporating additional candidate models