Results 71 to 80 of about 574 (152)

Biological and environmental effects on activity space of a common reef shark on an inshore reef

, 2017
Proximity to land and sources of freshwater expose fishes residing on inshore reefs to fluctuating environmental conditions (e.g. high freshwater run-off/low salinity events).
Schlaff, Audrey M., V Udyawer, CA Simpfendorfer, Udyawer, Vinay, AM Schlaff, Simpfendorfer, Colin A., MR Heupel, Heupel, Michelle R.   +7 more
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Effects of fishing on tropical reef associated shark populations on the Great Barrier Reef

, 2009
Three data sets were examined to define the level of interaction of reef associated sharks with the commercial Coral Reef Fin Fish Fishery within the Great Barrier Reef (GBR).
Welch, D.J., Ballagh, A., Simpfendorfer, C.A., Mapstone, B.D., Heupel, M.R., Davies, C., Carlos, G., Williams, A.J.   +7 more
core   +1 more source

Assessment of a data-limited, multi-species shark fishery in the Great Barrier Reef Marine Park and south-east Queensland

, 2016
The status of five species of commercially exploited sharks within the Great Barrier Reef Marine Park (GBRMP) and south-east Queensland was assessed using a data-limited approach.
Saunders, Richard J., Smart, J. J., Saunders, R. J., Simpfendorfer, C. A., Tobin, Andrew J., Harry, Alastair V., Harry, A. V., Yates, P. M., Yates, Peter M., Simpfendorfer, Colin A., Smart, Jonathan J., Tobin, A. J.   +11 more
core   +1 more source

No effects of abiotic and anthropogenic factors on reef-associated neonate shark abundance within a shark nursery-area system [PDF]

Context: Coastal habitats function as shark nursery areas; however, coastal habitats can experience extreme variation in abiotic conditions and are susceptible to human disturbances.
Simpfendorfer, C.A., Thiault, Lauric, Planes, S., Rummer, J.L., Thiault, L., Bouyoucos, I.A., Schwieterman, G.D., Eustache, K.P., Eustache, K.B.   +8 more
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Ethological Insights into the Ecology and Movements of the Blacktip Reef Shark (Carcharhinus melanopterus) in an Undisturbed Reef Community

A challenge in the ethological study of wild animals is the need for detailed, long-term observations, which work is particularly difficult in the case of sharks. Consequently, most research relies on tagging and remote sensing technologies to provide presence-absence data in which the behavioural and social context is lacking.
Ila France Porcher, Brian W. Darvell
openaire   +1 more source

Social, Economic, and Regulatory Drivers of the Shark Fin Trade

The demand for shark fins is arguably the most important determinant of the fate of shark populations around the world. This paper examines the role that social and economic factors in China play in driving the trade both historically and under current ...
Bjorndal, Trond, Milner-Gulland, E.J., Clarke, Shelley   +2 more
core  

Habitat associations of freshwater sawfish (Pristis microdon) and Northern River sharks (Glyphis sp. C): including genetic analysis of P. microdon across northern Australia

, 2008
This study investigated the ecology, morphology, habitat utilisation and population genetics of the vulnerable (Environment Protection and Biodiversity Conservation Act (EPBC) 1999) or critically endangered (IUCN) Freshwater Sawfish (Pristis microdon ...
Thorburn, D.C., Peverell, S.C., Chaplin, J.A., Whitty, J.M., Morgan, D.L., Phillips, N.M.   +5 more
core  

Data_Sheet_1_Steroid hormones as a non-lethal assessment of the reproductive biology in male and female blacktip reef sharks.docx

IntroductionOverexploitation of sharks and the destruction of their habitat has led to severe population declines and the need for conservation and management actions.
Serge Planes (133231), Suzanne C. Mills (10724146), Johann Mourier (400886)   +2 more
core   +1 more source

Quantifying changes in umbilicus size to estimate the relative age of neonatal blacktip reef sharks (Carcharhinus melanopterus)

, 2022
This dataset contains one file with the umbilicus sizes (area and perimeter) of the individuals used in the construction of the temporal regression relationships and one file containing the precaudal length (PCL, in cm), mass (in kg), and body condition (Fulton's K) to assess transitions in morphometrics with age.
openaire   +1 more source

Identification of Rays through DNA Barcoding: An Application for Ecologists

, 2012
DNA barcoding potentially offers scientists who are not expert taxonomists a powerful tool to support the accuracy of field studies involving taxa that are diverse and difficult to identify.
Owen O'Shea, Austin Chris M., Florencia Cerutti-Pereyra (158763), Mark G. Meekan (111192), Nu-Wei V. Wei (158766), Meekan, M., Bradshaw, C.J.A., Pereyra, Florencia Cerutti, Bradshaw, Corey J A, Meekan, Mark, Bradshaw, Corey, Bradshaw, C., Wei Nu-Wei V., Chris M Austin, O'Shea, O., Austin, Christopher, O'Shea Owen, Nu-Wei V Wei, Pereyra, Florencia, Shea, Owen, Shea, Owen O', Chris M. Austin (158773), Bradshaw Corey J. A., Wei, Nu, Wei, N-W.V., Wei, Nu Wei V, Florencia Cerutti-Pereyra, Cerutti-Pereyra, F., Austin, C., Cerutti-Pereyra Florencia, Owen O'Shea (158769), Meekan, Mark G, Corey J. A. Bradshaw (158770), Meekan Mark G., Mark G Meekan, Austin, C.M., Wei, N., Corey J A Bradshaw, Meekan, M.G., Austin, Christopher M   +39 more
core   +1 more source