Publications

Evidence of hammerhead shark overfishing in Brazil

Evidence of hammerhead shark overfishing in Brazil

EVIDÊNCIAS DE SOBREPESCA DO TUBARÃO MARTELO (Sphyrna sp.) NO RS, BRASIL By Aurélea Mäder, Martin Sander & Gilberto E. Casa Jr PDF – DOWNLOAD    

Ecology of the Silky shark in the Equatorial Atlantic Ocean

Ecology of the Silky shark in the Equatorial Atlantic Ocean

Published in 2012 Ecologia do tubarão lombo preto Carcharhinus falciformis(Muller & Henle, 1839) na margem ocidental do oceano Atlântico Equatorial Fernanda de Oliveira Lana ABSTRACT: The silky shark, Carcharhinus falciformis, is an abundant species in tropical and equatorial waters of the pelagic zone. The present work aimed at studying the ecology of the silky shark,

Reconstruction of Costa Rica’s marine fisheries catches 1950-2008

Reconstruction of Costa Rica’s marine fisheries catches 1950-2008

Published in 2012 Reconstruction of Costa Rica’s marine fisheries catches 1950-2008 Pablo Trujillo, Andrés M. Cisneros-Montemayor, Sarah Harper and Dirk Zeller ABSTRACT: Total marine fisheries catches in Costa Rica’s Exclusive Economic Zone (EEZ) were reconstructed for 1950-2008 and compared to officially reported data as supplied to FAO by the government of Costa Rica. The reconstruction

Changes in size distributions of commercially exploited sharks

Changes in size distributions of commercially exploited sharks

Published online on 17. March 2012 Changes in size distributions of commercially exploited sharks over 25 years in northern Australia using a Bayesian approach Iain C. Field, Rik C. Buckworthd, Guo-Jing Yang, Mark G. Meekan, Grant Johnson, John D. Stevens, Richard D. Pillans, Clive R. McMahon, Corey J.A. Bradshaw ABSTRACT: Long-term vital rate and life-history

Evidence for reproductive philopatry in the bull shark

Evidence for reproductive philopatry in the bull shark

Published online on 13. April 2012 Evidence for reproductive philopatry in the bull shark Carcharhinus leucas B. J. Tillett, M. G. Meekan, I. C. Field, D. C. Thorburn, J. R. Ovenden ABSTRACT: Reproductive philopatry in bull sharks Carcharhinus leucas was investigated by comparing mitochondrial (NADH dehydrogenase subunit 4, 797 base pairs and control region genes

The socio-economic value of the shark-diving industry in Fiji

The socio-economic value of the shark-diving industry in Fiji

Authors: GMS Vianna, JJ Meeuwig , D Pannell, H Sykes and MG Meekan University of Western Australia. Perth 2011. PDF – DOWNLOAD    

Recovery potential and conservation options for elasmobranchs

Recovery potential and conservation options for elasmobranchs

Published online on 12. April 2012 C. A. Ward-Paige, D. M. Keith, B. Worm, H. K. Lotze ABSTRACT: Many elasmobranchs have experienced strong population declines, which have been largely attributed to the direct and indirect effects of exploitation. Recently, however, live elasmobranchs are being increasingly valued for their role in marine ecosystems, dive tourism and

Structure, composition, and mechanical properties of shark teeth

Structure, composition, and mechanical properties of shark teeth

Published online on 05. April 2012  Structure, composition, and mechanical properties of shark teeth Joachim Enax, Oleg Prymak, Dierk Raabe, Matthias Epple ABSTRACT: The teeth of two different shark species (Isurus oxyrinchus and Galeocerdo cuvier) and a geological fluoroapatite single crystal were structurally and chemically characterized. In contrast to dentin, enameloid showed sharp diffraction peaks

Feeding habits and trophic ecology of longtail stingrays

Feeding habits and trophic ecology of longtail stingrays

Published online on 12. April 2012 Feeding habits and trophic ecology of Dasyatis longa (Elasmobranchii: Myliobatiformes): sexual, temporal and ontogenetic effects J. López-García, A. F. Navia, P. A. Mejía-Falla, E. A. Rubio ABSTRACT: Sexual, ontogenic and temporal effects in the diet of Dasyatis longa were evaluated to determine feeding habits and trophic ecology. Numeric indices

Biology of the Greenland shark Somniosus microcephalus

Biology of the Greenland shark Somniosus microcephalus

Published online on 12. April 2012 Biology of the Greenland shark Somniosus microcephalus MacNeil, M. A., McMeans, B. C., Hussey, N. E., Vecsei, P., Svavarsson, J., Kovacs, K. M., Lydersen, C., Treble, M. A., Skomal, G. B., Ramsey, M. and Fisk, A. T. ABSTRACT: Greenland shark Somniosus microcephalus is a potentially important yet poorly studied

Pacific sleeper shark trophic ecology in the eastern North Pacific Ocean

Pacific sleeper shark trophic ecology in the eastern North Pacific Ocean

Published online on 12. April 2012 Pacific sleeper shark Somniosus pacificus trophic ecology in the eastern North Pacific Ocean inferred from nitrogen and carbon stable-isotope ratios and diet. D. L. Courtney, R. Foy ABSTRACT: Stable-isotope ratios of nitrogen (δ(15) N) and lipid-normalized carbon (δ(13) C’) were used to examine geographic and ontogenetic variability in the

Great white shark caught in Far-Eastern Russia

Great white shark caught in Far-Eastern Russia

Published on 26. March 2012 The capture of a great white shark Carcharodon carcharias Linnaeus, 1758 (Carcharodontidae) in Peter the Great Bay (Sea of Japan) V. N. Dolganov ABSTRACT: This paper reports on the first reliable capture of the Great White shark Carcharodon carcharias (length 126 cm, weight 16 kg) in Peter the Great Bay

Ampullae of lorenzini in two angel shark species

Ampullae of lorenzini in two angel shark species

Published online on 10. April 2012 Morphological observations of ampullae of lorenzini in Squatina guggenheim and S. occulta (chondrichthyes, elasmobranchii, squatinidae) Schäfer, B. T., Malavasi, C. E., Favaron, P. O., Ambrósio, C. E., Miglino, M. A., Amorim, A. F. D. and Rici, R. E. G. ABSTRACT: We have conducted a morphological study of the ampullae

Science achievements in Chagos 2012

Science achievements in Chagos 2012

By Professor Charles Sheppard, with text and photos from several expedition members. Page 5 – 6 : Baited remote underwater video sampling. Page 8 : Monitoring of shark populations. PDF – DOWNLOAD  

Spiny dogfish DNA injection into muscles of red tilapia

Spiny dogfish DNA injection into muscles of red tilapia

Published on 05. April 2012 Evaluation of the productive performance characteristics of red tilapia (Oreochromis sp.) injected with shark DNA into skeletal muscles and maintained diets containing different levels of probiotic and amino yeast Samy Yehya El-Zaeem, Talaat Nagy Amer and Nader Ezzat El-Tawil ABSTRACT : This work aimed to study the effect of direct