Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Erich K. Ritter"'
Autor:
Raid W. Amin, Erich K. Ritter
Publikováno v:
Journal of Ecotourism. 20:270-281
As ecotourists become increasingly interested in snorkeling and diving with sharks, it is important to establish directives for safe interactions. The study considered eye contact between humans an...
Publikováno v:
Open Journal of Animal Sciences. 10:618-626
Eye contact with a shark is a crucial element during an interaction with a diver. Different mask frames change the size of a diver’s available field of vision, and so make a person’s eyes unequally visible from different angles, particularly when
Autor:
Erich K. Ritter
Publikováno v:
Open Journal of Animal Sciences. 10:40-47
It is unknown if resting sharks can sleep, which is also true for gliding ones. Here, a videotaped bull shark is presented that drifted in an uncontrolled manner for 120 seconds while sinking with 0.1 m/second. Several aspects are discussed to determ
Autor:
Erich K. Ritter
Publikováno v:
Open Journal of Animal Sciences. :88-96
Sharks and sharksuckers maintain a mutualistic symbiotic relationship; thus, it is surprising to observe a lemon shark, Negaprion brevirostris, killing a sharksucker, Echeneis lucrates, which has been recorded during a dive with lemon sharks. Does th
Autor:
Erich K Ritter
Publikováno v:
Examines in Marine Biology & Oceanography. 3
Autor:
Erich K. Ritter, Alberto Munoz
Publikováno v:
The Open Fish Science Journal. 11:46-51
Background:Close-up videos of sharks foraging on other live sharks are rare, especially when it comes to footage of the entire duration of an event.Objective:Our goal was to present an in-depth analysis involving a Galapagos shark,Carcharhinus galapa
Autor:
Raid W. Amin, Erich K. Ritter
Publikováno v:
acta ethologica. 22:9-16
On rare occasions, during mating season among sharks, ‘mating scars’ appear on female sharks’ bodies caused by the males holding onto them. The low frequency of sharks bearing such scars indicates that those markers are not part of regular mati
Autor:
Andreas Dellios, Erich K. Ritter
Publikováno v:
Open Journal of Animal Sciences. :329-334
Feeding is the likely cause for tooth shedding in sharks. Although the overall process of loosing teeth has been well studied, hardly any emphasis has been given to the actual separation mechanism between a shark’s tooth base and the surrounding ja
Publikováno v:
Environmental Sciences. 6:1-12
Autor:
Erich K Ritter
Publikováno v:
Examines in Marine Biology & Oceanography. 3