Results 261 to 270 of about 59,631 (301)

Chlamydiosis in Mariculture-reared Green Sea Turtles (Chelonia mydas)

Veterinary Pathology, 1994
From August 1990 to June 1991, a moderate die-off of 4- to 5-year-old green sea turtles ( Chelonia mydas) occurred at Cayman Turtle Farm, Grand Cayman, British West Indies. Clinical signs included lethargy, anorexia, and inability to dive. Many of the ill turtles floated on the surface of their tanks. There was no apparent sex predilection.
B L, Homer, E R, Jacobson, J, Schumacher, G, Scherba   +3 more
openaire   +2 more sources

Purification of thyrotropin from the pituitaries of two turtles: The green sea turtle and the snapping turtle

General and Comparative Endocrinology, 1981
Abstract The purification of thyrotropin from the pituitaries of two species of turtles was followed using a bioassay based on the uptake of radioiodide by the thyroid of the baby slider turtle, Pseudemys scripta . Conventional chromatographic techniques which had previously resulted in the separation of pituitary gonadotropins were used initially ...
D S, MacKenzie, P, Licht, H, Papkoff
openaire   +2 more sources

Photopic Spectral Sensitivity of Green and Loggerhead Sea Turtles

Copeia, 2004
Abstract Flicker electroretinography (ERG) was used to examine the in situ photopic (cone-photoreceptor based) spectral sensitivities of Green and Loggerhead Sea Turtles. Both species were responsive to wavelengths from 440–700 nm, and both had peak sensitivity in the long wavelength portion of the spectrum (∼580 nm).
D. H. Levenson, S. A. Eckert, M. A. Crognale, J. F. Deegan, G. H. Jacobs   +4 more
openaire   +1 more source

CAPTIVE BREEDING OF THE GREEN SEA TURTLE (Chelonia mydas)

Proceedings of the annual meeting - World Mariculture Society, 1977
ABSTRACTCaptive breeding and nesting activity of the green sea turtle (Chelonia mydas) occurring at a commercial sea turtle farm in the Cayman Islands is described. Isolation of reproductively active pairs facilitates successful mounting among the captive breeding population.
James R. Wood, Fern E. Wood
openaire   +1 more source

Adult Sex Ratio in the Green Sea Turtle

Copeia, 1984
Etude menee dans le Sultanat d'Oman de Chelonia mydas se nourissant dans l'Ocean Indien du Nord.
openaire   +1 more source

Further Studies of the Sea-Finding Mechanism in Green Turtle Hatchlings

Behaviour, 1974
Abstract Further studies were made of the simultaneous comparison mechanism used by hatchling green turtles, Chelonia mydas, in sea-finding behaviour. The aim was to learn if visual inputs from different directions, stimulating different parts of the retina, had the same effects on orientation. To do this goggles were designed that permitted
N, Mrosovsky, S J, Shettleworth
openaire   +2 more sources

Coastal habitat degradation and green sea turtle diets in Southeastern Brazil

Marine Pollution Bulletin, 2011
To show the influence of coastal habitat degradation on the availability of food for green turtles (Chelonia mydas), we assessed the dietary preferences and macroalgae community at a feeding area in a highly urbanized region. The area showed low species richness and was classified as degraded.
Robson G, Santos, Agnaldo Silva, Martins, Julyana da Nobrega, Farias, Paulo Antunes, Horta, Hudson Tercio, Pinheiro, Evelise, Torezani, Cecília, Baptistotte, Jeffrey A, Seminoff, George H, Balazs, Thierry M, Work   +9 more
openaire   +2 more sources

Monitoring mercury in green sea turtles using keratinized carapace fragments (scutes)

Marine Pollution Bulletin, 2013
The green sea turtles are facing a very high risk of extinction in the wild and the impacts of heavy metals contamination contributes with the decline of their populations. It is very important to assess noninvasive and nonlethal methods for monitoring Hg contamination in sea turtles.
M F, Bezerra, L D, Lacerda, E H S M, Lima, M T D, Melo   +3 more
openaire   +2 more sources

Green Sea Turtles: A Discrete Simulation of Density-Dependent Population Regulation

Science, 1969
Field data on the nesting of the green sea turtle were used to construct a stochastic model. This model was simulated by use of a digital computer language simscript (Monte Carlo) to determine the relation between the percentage of nests destroyed and the size of the turtle population.
H R, Bustard, K P, Tognetti
openaire   +2 more sources

Spatial distribution of turtle barnacles on the green sea turtle, Chelonia mydas

Ecological Research, 2007
Abstract Distribution patterns of epibiotic barnacles on green sea turtles were investigated in waters neighboring Okinawa, Japan. A number of barnacle species were found to coexist on the turtles and were classified into three genera: Chelonibia ...
Ryota Hayashi, Kazuki Tsuji
openaire   +1 more source