Scientific Papers

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Distribution, habitat and biology of a rare and threatened eastern Australian endemic shark: Colclough’s shark, Brachaelurus colcloughi Ogilby, 1908

Distribution, habitat and biology of a rare and threatened eastern Australian endemic shark: Colclough’s shark, Brachaelurus colcloughi Ogilby, 1908

Published on 24 June 2011. Peter M. Kyne , Leonard J. V. Compagno, Joanna Stead , Micha V. Jackson  and Michael B. Bennett. ABSTRACT: Despite increasing research effort and conservation focus on sharks, small species of little commercial value are often overlooked, although they make a considerable contribution to global diversity. The poorly known Colclough’s

The importance of research and public opinion to conservation management of sharks and rays: a synthesis

The importance of research and public opinion to conservation management of sharks and rays: a synthesis

Published in June 2011 C. A. Simpfendorfer, M. R. Heupel, W. T. White and N. K. Dulvy ABSTRACT: Growing concern for the world’s shark and ray populations is driving the need for greater research to inform conservation management. A change in public perception, from one that we need to protect humans from sharks to one

Reef-use and residency patterns of a baited population of silky sharks, Carcharhinus falciformis, in the Red Sea

Reef-use and residency patterns of a baited population of silky sharks, Carcharhinus falciformis, in the Red Sea

Published on 24 June 2011. C. Clarke, J. S. E. Lea, R. F. G. Ormond. ABSTRACT: Many shark populations are experiencing critical declines from overfishing, triggering potentially detrimental cascade effects on marine ecosystems. Silky sharks, Carcharhinus falciformis, have experienced some of the most severe declines, yet little information exists on their behavioural ecology to inform

Rediscovery and redescription of the smoothtooth blacktip shark, Carcharhinus leiodon (Carcharhinidae), from Kuwait, with notes on its possible conservation status

Rediscovery and redescription of the smoothtooth blacktip shark, Carcharhinus leiodon (Carcharhinidae), from Kuwait, with notes on its possible conservation status

Published on 24 June 2011 Alec B. M. Moore, William T. White, Robert D. Ward, Gavin J. P. Naylor, Richard Peirce. ABSTRACT: The smoothtooth blacktip shark, Carcharhinus leiodon, is one of the rarest whaler shark species of the genus Carcharhinus, previously known only from the holotype collected over 100 years ago from the Arabian Sea

Business partner or simple catch? The economic value of the sicklefin lemon shark in French Polynesia

Business partner or simple catch? The economic value of the sicklefin lemon shark in French Polynesia

Published on 24 June 2011. E. Clua, N. Buray, P. Legendr, J. Mourier, S. Planes. ABSTRACT: Most arguments invoked so far by the scientific community in favour of shark conservation rely on the ecological importance of sharks, and have little impact on management policies. During a 57-month study, we were able to individually recognise 39

Killing for conservation the need for alternatives to lethal sampling of apex predatory sharks

Killing for conservation the need for alternatives to lethal sampling of apex predatory sharks

Published on 22. June 2011 Neil Hammerschlag, James Sulikowski. ABSTRACT: Top oceanic predators, especially large predatory sharks (TOPS), appear to be experiencing varying degrees of population declines. Life history data (e.g. diet, reproductive status, age and growth, mortality) are critical for developing effective conservation strategies for TOPS. Presently, lethal sampling remains the most effective and

Global shark currency: the distribution, frequency, and economic value of shark ecotourism

Global shark currency: the distribution, frequency, and economic value of shark ecotourism

Published on 01. June 2011 Austin J. Gallagher and Neil Hammerschlag. ABSTRACT: Ecotourism represents a highly popularised activity which has exhibited global growth in recent years. In the present paper, we examine the distribution, frequency, and economic value of shark-based ecotourism operations worldwide. A total of 376 shark ecotour operations across 83 locations and 8

Elasmobranchs of the Persian (Arabian) Gulf ecology, human aspects and research priorities for their improved management

Elasmobranchs of the Persian (Arabian) Gulf ecology, human aspects and research priorities for their improved management

Published on 17. May 2011 Alec B. M. Moore ABSTRACT: Given widespread concern about the status of elasmobranch fishes globally, information on this group in the Persian (Arabian) Gulf is reviewed comprehensively for the first time. The Arabian region may be of overlooked significance to elasmobranch biogeography, and the environmentally unique Gulf has some highly

Characteristics of a manta ray Manta alfredi population off Maui, Hawaii, and implications for management

Characteristics of a manta ray Manta alfredi population off Maui, Hawaii, and implications for management

Published on 16. May 2011 Mark H. Deakos, Jason D. Baker, Lars Bejder ABSTRACT: Late maturity, few offspring and a residential nature are typical characteristics of Manta alfredi that make this species vulnerable to localized anthropogenic threats. Improving its life history information is crucial for successful management. A total of 229 surveys was conducted from

Spatial predictions of blue shark (Prionace glauca) catch rate and catch probability of juveniles in the Southwest Atlantic

Spatial predictions of blue shark (Prionace glauca) catch rate and catch probability of juveniles in the Southwest Atlantic

Published on 05. May 2011 Carvalho, F. C., Murie, D. J., Hazin, F. H. V., Hazin, H. G., Leite-Mourato, B., and Burgess, G. H. ABSTRACT: Generalized regression analysis and spatial prediction was applied to catch per unit effort (cpue) data for blue shark (Prionace glauca) caught by the Brazilian tuna longline fleet between 1997 and

A new species of Neotropical freshwater stingray of the genus Potamotrygon Garman, 1877 from the Río Madre de Díos, Peru (Chondrichthyes: Potamotrygonidae)

A new species of Neotropical freshwater stingray of the genus Potamotrygon Garman, 1877 from the Río Madre de Díos, Peru (Chondrichthyes: Potamotrygonidae)

Published on 04. May 2011 João Paulo C.B. da Silva, Marcelo R. de Carvalho ABSTRACT: Potamotrygon tatianae sp. nov., is described from Río Madre de Díos, Peru, upper Rio Madeira basin. The new species is distinguished from all congeners by a unique combination of characters, including its dorsal color pattern formed by a relatively slender,

Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin

Potamotrygon tigrina, a new species of freshwater stingray from the upper Amazon basin

Published on 21. April 2011 Marcelo R. de Carvalho, Mark H. Sabaj Perez, Nathan R. Lovejoy ABSTRACT: A new species of Neotropical freshwater stingray, family Potamotrygonidae, is described from the Río Nanay in the upper Río Amazonas basin of Peru. Potamotrygon tigrina, n. sp., is easily distinguished from all congeners by its conspicuous dorsal disc

An unusual, dwarf new species of Neotropical freshwater stingray

An unusual, dwarf new species of Neotropical freshwater stingray

Published on 20. April 2011 An unusual, dwarf new species of Neotropical freshwater stingray, Plesiotrygon nana sp. nov., from the upper and mid Amazon basin: the second species of Plesiotrygon (Chondrichthyes: Potamotrygonidae) Marcelo R. de Carvalho, Maíra P. Ragno ABSTRACT: A new species of the relatively poorly known Neotropical freshwater stingray genus Plesiotrygon Rosa, Castello

Noteworthy elasmobranch records from Oman

Noteworthy elasmobranch records from Oman

Short Communication published in April 2011 AC Henderson and AJ Reeve ABSTRACT: Records of 11 elasmobranch species previously unreported from, or uncommon in, Omani waters are presented. Records new to Oman include Carcharhinus altimus, C. leiodon, Centrophorus  isodon, Ctenacis fehlmanni, Himantura fai, Mobula eregoodootenke and Sphyrna zygaena, whereas noteworthy records of uncommon species include Himantura

Gear selectivity of large-mesh nets and drumlines used to catch sharks in the Queensland Shark Control Program

Gear selectivity of large-mesh nets and drumlines used to catch sharks in the Queensland Shark Control Program

Published in April 2011 WD Sumpton, SM Taylor, NA Gribble, G. McPherson, T. Ham ABSTRACT: Catches of sharks and bycatch in large-mesh nets and baited drumlines used by the Queensland Shark Control Program were examined to determine the efficacy of both gear types and assess fishing strategies that minimise their impacts. There were few significant

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