Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Sheldon F J Dudley"'
Autor:
Albertus J Smit, Michael Roberts, Robert J Anderson, Francois Dufois, Sheldon F J Dudley, Thomas G Bornman, Jennifer Olbers, John J Bolton
Publikováno v:
PLoS ONE, Vol 8, Iss 12, p e81944 (2013)
Gridded SST products developed particularly for offshore regions are increasingly being applied close to the coast for biogeographical applications. The purpose of this paper is to demonstrate the dangers of doing so through a comparison of reprocess
Externí odkaz:
https://doaj.org/article/b0d11bb47fb745d793a3e33799e9f2d9
Autor:
Nigel E. Hussey, Margaret C. Siple, Aaron T. Fisk, Sheldon F. J. Dudley, M. Aaron MacNeil, Brian N. Popp
Publikováno v:
Biological Sciences Publications
To understand the effects of predator removal in marine ecosystems requires accurate estimates of trophic position and trophic structure that have been difficult to obtain to date. For example, most sharks are classified as diet generalists that feed
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04e14f31bc17d5e9416d2a5b9f4970cd
https://doi.org/10.1016/j.fooweb.2015.04.002
https://doi.org/10.1016/j.fooweb.2015.04.002
Autor:
Nigel E. Hussey, Aaron T. Fisk, Geremy Cliff, Sheldon F. J. Dudley, Sabine P. Wintner, Marina C. Beaudry, Anne M. McLeod, Bailey C. McMeans
Publikováno v:
Environmental Toxicology and Chemistry. 34:2051-2060
Trophic position and body mass are traits commonly used to predict organochlorine burdens. Sharks, however, have a variety of feeding and life history strategies and metabolize lipid uniquely. Because of this diversity, and the lipid-association of o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18298b2c88b753f46a068548a29a934f
https://doi.org/10.1002/etc.3029
https://doi.org/10.1002/etc.3029
Publikováno v:
African Journal of Marine Science. 37:129-139
Science is continually evolving, with recent developments in some fields, such as conservation biology, leading to shifts in priorities and needs. Recent international conferences focused on chondrichthyan research provide an opportunity to assess ho
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f72dcde4b25910476be174f2493d3fde
https://doi.org/10.2989/1814232x.2015.1042911
https://doi.org/10.2989/1814232x.2015.1042911
Autor:
R.W. Leslie, C da Silva, Sven E. Kerwath, Stephen J. Lamberth, Sheldon F. J. Dudley, ME McCord, Anthony J. Booth, W. H. H. Sauer, T Zweig
Publikováno v:
African Journal of Marine Science. 37:233-248
Chondrichthyans (sharks, skates, rays and chimaeras) are captured in many marine fisheries. Management and research efforts directed at chondrichthyan fishing are often neglected because of low product value, taxonomic uncertainty, low capture rates,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13edcc538abd63db330a398f82e897dc
https://doi.org/10.2989/1814232x.2015.1044471
https://doi.org/10.2989/1814232x.2015.1044471
Publikováno v:
African Journal of Marine Science. 37:275-284
Largetooth sawfish Pristis pristis and green sawfish P. zijsron were not uncommon in catches made in KwaZulu‑ Natal (KZN) on the east coast of South Africa in the mid part of the last century but apparently have disappeared from this area. This pap
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b0c9b6cecbd9e6c96eaff2d66af3f81
https://doi.org/10.2989/1814232x.2015.1027269
https://doi.org/10.2989/1814232x.2015.1027269
Autor:
Sabine P. Wintner, Nigel E. Hussey, Aaron T. Fisk, Sheldon F. J. Dudley, Heather M. Christiansen, Geremy Cliff
Publikováno v:
Rapid Communications in Mass Spectrometry. 28:448-456
RATIONALE Bulk stable isotope analysis (SIA) provides an important tool for the study of animal ecology. Elasmobranch vertebral centra can be serially sampled to obtain an isotopic history of an individual over ontogeny. The measured total δ13C valu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38cfd5ee3f4e287b2122012255d65bcc
https://doi.org/10.1002/rcm.6801
https://doi.org/10.1002/rcm.6801
Autor:
Heather M. Christiansen, Lisa A. Kerr, Sabine P. Wintner, Aaron T. Fisk, Sheldon F. J. Dudley, Nigel E. Hussey, Steven E. Campana, Geremy Cliff
Publikováno v:
Biological Sciences Publications
Knowledge of age and growth parameters is vital to the conservation and management of white sharks (Carcharodon carcharias), but ages have not been validated for all populations and growth rates can vary regionally. Bomb radiocarbon (14C) analyses co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d53285efd8b7ba06590fe089356cac6
https://doi.org/10.1007/s00227-016-2916-9
https://doi.org/10.1007/s00227-016-2916-9
Publikováno v:
Biological Sciences Publications
Understanding the role of predators is challenging but critical for ecosystem management. For community dynamics, predator-specific size-based variation in diet, trophic position, and habitat use are rarely accounted for. Using two applied tools (sta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b0d7c1727cf8d529a8d63c9cbc2ca07
https://doi.org/10.1139/f2011-115
https://doi.org/10.1139/f2011-115
Autor:
Ryan Johnson, Marthán N Bester, Michael F. Meyer, Enrico Gennari, W. Herman Oosthuizen, Sheldon F. J. Dudley, Lisa Hancke
Publikováno v:
Environmental Biology of Fishes. 85:189-200
Between June and December 2005, active and passive acoustic telemetry was used to examine fine scale movements of 13 white sharks (Carcharodon carcharias) (ten passive, three active) at Mossel Bay. A total of 24 active trackings (ranging from 2 h to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35c79dfb32358e24d4d22ef030889dfd
https://doi.org/10.1007/s10641-009-9477-4
https://doi.org/10.1007/s10641-009-9477-4