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Full-Text Articles in Physical Sciences and Mathematics
A 200 Year Record Of Carbon-13 And Carbon-14 Variations In A Bermuda Coral, Y. Nozaki, D. M. Rye, K. K. Turekian, Richard E. Dodge
A 200 Year Record Of Carbon-13 And Carbon-14 Variations In A Bermuda Coral, Y. Nozaki, D. M. Rye, K. K. Turekian, Richard E. Dodge
Marine & Environmental Sciences Faculty Articles
A 200 year old brain coral, captured in Bermuda in 1976 was slabbed and x-rayed. Using the annual growth bands sequential, dated samples were taken over the entire growth period of the coral and analyzed for Δ14C, δ13C and δ18O. During the past 80 years atmospheric variations in Δ14C and δ13C due to human effects, such as release of bomb C-14 and dilution of both C-14 and C-13 by fossil fuel burning, are closely tracked by the coral. Prior to 1900 divergences between the coral and tree Δ14C …
Serologic And Hematologic Values Of Bison In Colorado, Edward O. Keith, James Ellis, Robert W. Phillips, Maxine M. Benjamin
Serologic And Hematologic Values Of Bison In Colorado, Edward O. Keith, James Ellis, Robert W. Phillips, Maxine M. Benjamin
Marine & Environmental Sciences Faculty Articles
Recent economic and aesthetic interest in North American bison (Bison bison) has lead to increased interstate transport of these animals. Serologic and hematologic standards for bison are needed to detect disease in transported animals as well as within herds. This paper describes variation in blood physiological parameters in bison caused by variations in diet and season. Blood was taken from six bison and analyzed for serologic and hematologic parameters. Significant variation was found in blood urea nitrogen, chloride, cholesterol, creatinine, eosinophil, glucose, hemoglobin, lactic dehydrogenase, leukocyte, packed cell volume, potassium, serum globulin, serum glutamic oxalacetic transaminase, SGPT, and …
Zoogeography Of Tropical Western Atlantic Crinoidea (Echinodermata), David L. Meyer, Charles G. Messing, Donald B. Macurda Jr.
Zoogeography Of Tropical Western Atlantic Crinoidea (Echinodermata), David L. Meyer, Charles G. Messing, Donald B. Macurda Jr.
Marine & Environmental Sciences Faculty Articles
Recent collections of crinoids from the intertidal zone to 1,650 m in the tropical western Atlantic have provided significant range extensions for more than half of the 44 comatulid and stalked species known from the region. Of the 34 comatulid species, over 60% are endemic to the region; of the 10 stalked species, 90% are endemic. At the familial level, this fauna has its strongest affinities with the tropical Indo-Pacific region. Comatulids are most abundant above 300 m, while stalked species occur primarily between 100 and 700 m. Species that occur primarily above 600 m (the deepest penetration of the …
A Revision Of The Comatulid Genus Comactinia A. H. Clark (Crinoidea: Echinodermata), Charles G. Messing
A Revision Of The Comatulid Genus Comactinia A. H. Clark (Crinoidea: Echinodermata), Charles G. Messing
Marine & Environmental Sciences Faculty Articles
The formerly monotypic genus Comactinia is found to comprise two valid species. One of these is further divided into two subspecies. The variability of the genus is examined and illustrated. A discussion of ecology, affinities, and zoogeography is included.