Publications

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Evaluation and use of a portable field kit for measuring whole-blood lactate in sharks

Evaluation and use of a portable field kit for measuring whole-blood lactate in sharks

Published on 24 June 2011. C. A. Awruch, C. Simpfendorfer and N. W. Pankhurst. ABSTRACT: Measurement of lactate is becoming a common procedure in assessing the physiological effects of capture stress in sharks, although the necessity to measure the concentrations in the laboratory limits the ability for field assessments. Portable lactate analysers offer an alternative,

Decadal trends in shark catches and effort from the New South Wales, Australia, Shark Meshing Program 1950–2010

Decadal trends in shark catches and effort from the New South Wales, Australia, Shark Meshing Program 1950–2010

Published on 24 June 2011. D. D. Reid, W. D. Robbins and V. M. Peddemors. ABSTRACT: The New South Wales (NSW) government has operated a program of netting beaches for the protection of swimmers and surfers against shark attack since 1937 in Sydney, and since 1949 in Newcastle and Wollongong. The scope and directives of

Wet-season effects on the distribution of juvenile pigeye sharks, Carcharhinus amboinensis, in tropical nearshore waters

Wet-season effects on the distribution of juvenile pigeye sharks, Carcharhinus amboinensis, in tropical nearshore waters

Published on 24 June 2011. Danielle M. Knip, Michelle R. Heupel, Colin A. Simpfendorfer, Andrew J. Tobin and James Moloney. ABSTRACT: Tropical nearshore environments are highly dynamic systems owing to extreme freshwater flow and flooding episodes that occur in wet-season months. We hypothesised that juvenile sharks in tropical nearshore waters respond to seasonal freshwater inflow

Abundance, habitat use and movement patterns of the shovelnose guitarfish (Rhinobatos productus) in a restored southern California estuary

Abundance, habitat use and movement patterns of the shovelnose guitarfish (Rhinobatos productus) in a restored southern California estuary

Published on 24 June 2011. Thomas J. Farrugia, Mario Espinoza and Christopher G. Lowe. ABSTRACT: Coastal elasmobranchs such as the shovelnose guitarfish (Rhinobatos productus) seasonally use bays and estuaries for mating, pupping and feeding. However, many human-populated coastal areas have been developed, making them unavailable to coastal fish populations. The Full Tidal Basin (FTB) of

Fine-scale spatial and seasonal partitioning among large sharks and other elasmobranchs in south-eastern Queensland, Australia

Fine-scale spatial and seasonal partitioning among large sharks and other elasmobranchs in south-eastern Queensland, Australia

Published on 24 June 2011. Stephen Taylor, Wayne Sumpton and Tony Ham. ABSTRACT: Our understanding of the ecological role of larger elasmobranchs is limited by a lack of information on their spatial and seasonal abundance. Analysis of 14 years of gill-net catch data in south-eastern Queensland, Australia, revealed that the species composition of large sharks

Distribution, site affinity and regional movements of the manta ray, Manta alfredi (Krefft, 1868), along the east coast of Australia

Distribution, site affinity and regional movements of the manta ray, Manta alfredi (Krefft, 1868), along the east coast of Australia

Published on 24 June 2011. Lydie I. E. Couturier, Fabrice R. A. Jaine , Kathy A. Townsend, Scarla J. Weeks, Anthony J. Richardson and Michael B. Bennett. ABSTRACT: Despite the increasing tourism interest worldwide for the manta ray, Manta alfredi, very little is known about its biology and ecology. Knowledge of its distribution and movement

Long-term membership of whale sharks (Rhincodon typus) in coastal aggregations in Seychelles and Djibouti

Long-term membership of whale sharks (Rhincodon typus) in coastal aggregations in Seychelles and Djibouti

Published on 24 June 2011. David Rowat, Katie Brooks, Abi March, Ciara McCarten, Daniel Jouannet, Luke Riley, Gareth Jeffreys, Morgan Perri, Michel Vely and Bruno Pardigon. ABSTRACT: In coastal waters of several locations globally, whale sharks (Rhincodon typus) form seasonal aggregations, most of which largely comprise juvenile males of 4–8 m length. Evaluation of the period

Pop-up archival satellite tagging of Carcharias taurus: movements and depth/temperature-related use of south-eastern Australian waters

Pop-up archival satellite tagging of Carcharias taurus: movements and depth/temperature-related use of south-eastern Australian waters

Published on 24 June 2011. N. M. Otway and M. T. Ellis. ABSTRACT: Knowledge of migratory movements and depth/temperature-related use of coastal waters by sharks can lead to more sustainable fisheries and assist in managing the long-term conservation of those species now considered threatened. Pop-up archival satellite tags (PATs) provide an alternative to conventional tagging

Sex- and maturity-based differences in movement and migration patterns of grey nurse shark, Carcharias taurus, along the eastern coast of Australia

Sex- and maturity-based differences in movement and migration patterns of grey nurse shark, Carcharias taurus, along the eastern coast of Australia

Published on 24 June 2011. C. S. Bansemer and M. B. Bennett. ABSTRACT: Photo-identification techniques were used to investigate temporal and spatial distributions of Carcharias taurus (Rafinesque, 1810) in relation to maturity, sex and pregnancy status at 19 sites along Australia’s eastern coastline. Of 931 individual sharks identified between 2004 and 2008, 479 were female

Distribution, reproduction and population structure of three gulper sharks (Centrophorus, Centrophoridae) in south-east Australian waters

Distribution, reproduction and population structure of three gulper sharks (Centrophorus, Centrophoridae) in south-east Australian waters

Published on 24 June 2011 K. J. Graham and R. K. Daley. ABSTRACT: Gulper sharks (Centrophorus spp.) are commercially fished in all oceans but the taxonomy and biology of many species are not clearly defined, and stocks are extremely vulnerable to over-exploitation. We present distributional, size-frequency and reproductive data for three species (Centrophorus harrissoni, C.

Uterine fluid composition of the dwarf ornate wobbegong shark (Orectolobus ornatus) during gestation

Uterine fluid composition of the dwarf ornate wobbegong shark (Orectolobus ornatus) during gestation

Published on 24 June 2011 Megan T. Ellis and Nicholas M. Otway . ABSTRACT: Low fecundity in chondrichthyans makes them extremely susceptible to fishing, so understanding the various reproductive strategies in this group is vital for management. Knowledge of the uterine fluid (UF) composition throughout gestation is fundamental to this understanding, yet is restricted to

Does more maternal investment mean a larger brain? Evolutionary relationships between reproductive mode and brain size in chondrichthyans

Does more maternal investment mean a larger brain? Evolutionary relationships between reproductive mode and brain size in chondrichthyans

Published on 24 June 2011 Christopher G. Mull, Kara E. Yopak  and Nicholas K. Dulvy. ABSTRACT: Chondrichthyans have the most diverse array of reproductive strategies of any vertebrate group, ranging from egg-laying to live-bearing with placental matrotrophy. Matrotrophy is defined as additional maternal provisioning beyond the yolk to the developing neonate; in chondrichthyans, this occurs

A comparison of reproductive parameters of the Bering skate, Bathyraja interrupta, from two Alaskan large marine ecosystems

A comparison of reproductive parameters of the Bering skate, Bathyraja interrupta, from two Alaskan large marine ecosystems

Published on 24 June 2011. Shaara M. Ainsley, David A. Ebert  and Gregor M. Cailliet. ABSTRACT: Estimates of size at maturity are crucial to fisheries stock assessments and may change spatially and temporally. This study directly compares life-history characteristics of a skate species in two large marine ecosystems in a region where there is both

Age, growth and genetic status of the white shark (Carcharodon carcharias) from Kashima-nada, Japan

Age, growth and genetic status of the white shark (Carcharodon carcharias) from Kashima-nada, Japan

Published on 24 June 2011. S. Tanaka , T. Kitamura , T. Mochizuki  and K. Kofuji. ABSTRACT: The white shark, a top predator inhabiting the world’s oceans, is an endangered species. However, knowledge of its life-history traits and population structure is still limited. We hypothesised that life-history traits would vary among populations because the species’

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

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