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Full-Text Articles in Zoology
Chromosome Set Instability In 1--2 Year Old Triploid Crassostrea Ariakensis In Multiple Environments, Mingfang Zhou
Chromosome Set Instability In 1--2 Year Old Triploid Crassostrea Ariakensis In Multiple Environments, Mingfang Zhou
Dissertations, Theses, and Masters Projects
No abstract provided.
Aspects Of Age, Growth, Demographics And Thermal Biology Of Two Lamniform Shark Species, Kenneth J. Goldman
Aspects Of Age, Growth, Demographics And Thermal Biology Of Two Lamniform Shark Species, Kenneth J. Goldman
Dissertations, Theses, and Masters Projects
Age and growth rates for salmon sharks (Lamna ditropis) in the eastern North Pacific (ENP) were estimated from seasonally formed bands in the vertebrae, and compared to previously published life history parameters for this species from the western North Pacific (WNP). Results of this study show that salmon sharks in the ENP achieve their maximum length at a faster rate, reach sexual maturity at an earlier age and achieve a greater weight-at-length than those in the WNP. Additionally, this dissertation shows that adult salmon sharks maintain a specific body temperature independent of changes in ambient temperature through a combination of …
Patch Use Of Winter Resident And Migrant American Kestrels (Falco Sparverius) In The Coastal Plain Of Virginia, Rhonda Lynn Hardesty Sipe
Patch Use Of Winter Resident And Migrant American Kestrels (Falco Sparverius) In The Coastal Plain Of Virginia, Rhonda Lynn Hardesty Sipe
Dissertations, Theses, and Masters Projects
No abstract provided.
Molecular And Morphological Evolution Of The Amphipod Radiation Of Lake Baikal, Kenneth S. Macdonald Iii
Molecular And Morphological Evolution Of The Amphipod Radiation Of Lake Baikal, Kenneth S. Macdonald Iii
Dissertations, Theses, and Masters Projects
The amphipods of Lake Baikal, Russia, are a taxonomically and morphologically diverse group, and have been cited as a classic example of adaptive radiation. An unfortunate consequence of this diversity has been an instability of Baikal amphipod classification, with frequent revisions spurred by differing opinions about the phylogenetic utility of different characters. Classifications have never been based on a rigorous phylogenetic analysis of morphological data and only recently has the phylogeny of Lake Baikal's amphipods been examined using molecular tools. Unfortunately, most of these studies have led to a limited expansion of our understanding of Baikal amphipod systematics. Phylogenetic relationships …
Diet Composition Of Young-Of-The-Year Bluefish, Pomatomus Saltatrix, In The Lower Chesapeake Bay And Virginia's Coastal Ocean, James Gartland
Diet Composition Of Young-Of-The-Year Bluefish, Pomatomus Saltatrix, In The Lower Chesapeake Bay And Virginia's Coastal Ocean, James Gartland
Dissertations, Theses, and Masters Projects
No abstract provided.
Development Of A Watershed And Stream-Reach Spawning Habitat Model For River Herring Alosa Pseudoharengus And Alosa Aestivalis, Rebecca A. Boger
Development Of A Watershed And Stream-Reach Spawning Habitat Model For River Herring Alosa Pseudoharengus And Alosa Aestivalis, Rebecca A. Boger
Dissertations, Theses, and Masters Projects
This research develops a model to identify indicators of potential suitable spawning habitat for river herring, Alosa pseudoharengus and A. aestivalis, using watershed and stream-reach metrics. The results of icthyoplankton samples collected from thirty-four streams feeding into the Rappahannock River below the Embree Dam at Fredericksburg indicate where river herring spawning occurred. Watershed and stream-reach metrics were either measured in the field or derived from digital data in a GIS. Benthic macroinvertebrate analysis was used to compare habitat quality among sites. Streams were classified as either absence or presence of herring eggs or larvae based on the results of the …