Adult bull sharks Carcharhinus leucas were monitored with electronic tags to investigate horizontal and vertical movements in the Atlantic and Pacific Oceans. In both locations, C. leucas showed some fidelity to specific coastal areas with only limited horizontal movements away from the tagging sites after tag attachment. Fish tagged in the Bahamas were detected mostly in the upper 20 m of the ...

The PFRP was host to “Tagging and Tracking Marine Fish with Electronic Devices,” a major international symposium held at the East-West Center in Honolulu from February 7–11, 2000. More than 100 scientists and electronics manufacturers from a dozen countries assembled to share their findings and discuss the state-of-the-art in this rapidly developing field. Results from all of earth’s oceans wer...

Small-eyed ray (Raja microocellata) is found on the inner continental shelf in the east Atlantic from the south-western coasts of the British Isles to northern Morocco (Stehmann and Bürkel, 1984). It is locally abundant in the Bristol Channel and parts of the English Channel (Ellis et al., 2005). It is an inshore demersal species, inhabiting the inner continental shelf waters down to a depth of...

In November 2009, an autonomous underwater glider (AUG) was deployed for a period of 12 days on the Wisconsin Shelf of Lake Superior. During this period, the AUG made repeated cross-shelf transects from 3 km to 13 km offshore, making 26 cross-shelf transects in all, during which time temperature was measured. Each of these transects displayed a mid-shelf temperature maximum roughly 8 km offshor...

We report sea-air fluxes of methane in physically and biologically distinct inshore habitats the Baltic Sea with goal to establish empirical relationships that allow upscaling local site-specific flux measurements. Flux measurements were conducted using floating chambers without bubble shields, by a boundary layer gas transfer model before, during, after an annually occurring algal bloom from J...