Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Sand shark"'
Publikováno v:
Journal of fish biologyREFERENCES. 98(2)
Sharks and their relatives (Elasmobranchii) are highly threatened with extinction due to various anthropogenic pressures. The abundant fossil record of fossil taxa has allowed the tracing of the evolutionary history of modern elasmobranchs to at leas
Autor:
C. G. Diedrich
Publikováno v:
International Journal of Oceanography. 2012:1-22
The Fürstenau Formation (Lutetian, Paleogene, Eocene) is based on type sections near Fürstenau in Germany (central Europe) and is built of 22 meter thick marine glauconitic and strongly bioturbated sands, clays, and a vertebrate-rich conglomerate b
Autor:
Mark Wunderlich
Publikováno v:
The Missouri Review. 35:165-177
Publikováno v:
South African Journal of Marine Science. 7:153-159
The possible impact of predation on benthic invertebrates by the sand shark Rhinobatos annulatus in Langebaan Lagoon was investigated. Studies on the population dynamics and the feeding biology of the sand sharks indicated temporal and spatial change
Autor:
J. A. F. Garrick
Publikováno v:
New Zealand Journal of Marine and Freshwater Research. 8:621-630
Photographs and a preserved head are identified as Odontaspis herbsti Whitley, 1950, an Australian sand shark growing to about 3 m long and similar to the Mediterranean O. ferox Risso, but differing in having a uniform grey body without black marking
Autor:
G. J. Rossouw
Publikováno v:
Journal of Fish Biology. 25:213-222
Annual rings on the vertebral centra were used to determine age in the sand shark, Rhinobatos annulatus. A 6% silver nitrate solution was applied to the concave surfaces of the vertebrae to clarify the rings. The monthly percentage frequency of opaqu
Autor:
W. C. Curtis
Publikováno v:
The Biological Bulletin. 5:125-142
In the spiral valve of the "sand shark" (Carcharias littoralis) taken from the Woods Holl region there is found in a large majority of the specimens examined the Cestode, Crossobothrium laciniatum. This genus and species was first described by Linton
Autor:
Gwendolen Rees
Publikováno v:
Parasitology. 37:163-171
Several specimens of Phyllobothrium dohrnii (Oerley) were obtained from the intestine of Hexanchus griseus caught in the deep-sea fishing grounds on the Porcupine Bank to the west of Ireland. The species was first described by Oerley in 1885. Since t
Autor:
Shelton P. Applegate
Publikováno v:
Contributions in science. 86:1-18
Autor:
Ernest L. Scott
Publikováno v:
American Journal of Physiology-Legacy Content. 55:349-354