Sharks were captured and tagged during survey operations conducted by the South Carolina Department of Natural Resources Adult Red Drum and Coastal Shark Longline Program (SCDNR) (see Ulrich et al., 2007 for longline protocol).
Two contemporary phylogenetic analyses based on expressed sequences tag surveys of the cryptomonad Guillardia theta and the haptophyte Emiliania huxleyi supported the close relationship of cryptophyte and haptophyte host lineages [ 18, 19].
Population heterogeneity, on the other hand, could obscure causal relationships when analyses can only survey tagging variants instead of the functional units.
We estimate that the current 20 week saturation-tagging survey design could detect a 3% per annum growth with acceptable statistical power (>0.8) in less than 14 years.
These studies will include tissue sampling, population surveys, tagging, and several types of acoustical monitoring.
The data gathered from these recaptures also highlights the importance of continuing long term surveys and tagging efforts.
Tagging studies and genetic surveys of population structure (reviewed by Hendry et al. 2004) indicate that pink and chum salmon (with sea-type juvenile life histories) stray more than other Pacific salmon species (with freshwater-resident juvenile life histories).
Birds were identified to species, sex, and age; leg-banded with U.S. Geological Survey tags; bled by jugular puncture (0.1 mL whole blood into 0.9 mL of saline); and released.
Traditionally, scientists study polar bears by capturing and tagging them or by conducting surveys from the air, using low flying aircraft to spot the animals.
Tagging studies and egg distribution surveys have suggested that there are separate inshore and offshore spawning components within Greenland and that inflow of eggs and larvae from Icelandic waters also makes an important contribution to local recruitment (Buch et al. 1994; Storr-Paulsen et al. 2004).
To test this hypothesis, we conducted an expressed sequence tag (EST) survey on the preaxostylid flagellate Trimastix pyriformis, a poorly-studied free-living anaerobe.
