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Feeding of the Brazilian sharpnose shark
Published online on 04. May 2012 Feeding of the Brazilian sharpnose shark Rhizoprionodon lalandii (Müller & Henle, 1839) from southern Brazil H. Bornatowski, M. R. Heithaus, V. Abilhoa, M. F. M. Corrêa ABSTRACT: Stomach contents of 175 Brazilian sharpnose sharks, Rhizoprionodon lalandii, were examined to assess their feeding habits. Caught by artisanal fishers between June
Study on Freshness of Dried Shark
Published on 20. April 2012 Effect of the Freshness of Starting Material on the Final Product Quality of Dried Salted Shark Aliya Al Ghabshi, Humaid Al-Khadhuri, Nasser Al-Aboudi, Sami Al-Gharabi, Aziz Al-Khatri, Nashwa Al-Mazrooei and Ponnerassery Sukumaran Sudheesh ABSTRACT: This study describes the relationship between the freshness of the starting raw material (fish) and the
Re-Creating Missing Population Baselines for Pacific Reef Sharks
Published online on 26. April 2012 Re-Creating Missing Population Baselines for Pacific Reef Sharks Nadon, M. O., Baum, J. K., Williams, I. D., McPherson, J. M., Zgliczynski, B. J., Richards, B. L., Schroeder, R. E. and Brainard, R. E. ABSTRACT: Sharks and other large predators are scarce on most coral reefs, but studies of their
Reproductive biology of the spotback skate
Published online on 18. April 2012 Reproductive biology of the spotback skate Atlantoraja castelnaui in the south-west Atlantic Ocean J. C. Colonello, M. L. García, C. A. Lasta, R. C. Menni ABSTRACT: This study provides information on the reproduction of spotback skate Atlantoraja castelnaui. A total of 232 individuals (119 females and 113 males) were
Polymorphic microsatellite loci in the blue shark
Published online on 20. April 2012 Identification and characterization of polymorphic microsatellite loci in the blue shark Prionace glauca, and cross-amplification in other shark species F. F. Mendonça, L. H. F. Ussami, D. T. Hashimoto, L. H. G. Pereira, F. Porto-Foresti, C. Oliveira, O. B. F. Gadig, F. Foresti ABSTRACT: Two to 14 alleles were
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
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
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
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
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
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
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
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
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