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Electronic tagging and population structure of Atlantic bluefin tuna
The results are consistent with two populations of bluefin tuna with distinct spawning areas that overlap on North Atlantic foraging grounds, and Restrictions on the time and area where longlining occurs would reduce incidental catch mortalities on western spawning grounds. Expand
Tracking apex marine predator movements in a dynamic ocean
It is shown that top predators exploit their environment in predictable ways, providing the foundation for spatial management of large marine ecosystems, and critical habitats across multinational boundaries are identified. Expand
Migratory Movements, Depth Preferences, and Thermal Biology of Atlantic Bluefin Tuna
The results obtained from tagging of Atlantic bluefin tuna with implantable archival and pop-up satellite archival tags provide insights into the seasonal movements and environmental preferences of this species. Expand
Migratory shearwaters integrate oceanic resources across the Pacific Ocean in an endless summer
The extraordinary transequatorial postbreeding migrations of a small seabird, the sooty shearwater, obtained with miniature archival tags that log data for estimating position, dive depth, and ambient temperature reveal that shearwaters fly across the entire Pacific Ocean in a figure-eight pattern while traveling 64,037 ± 9,779 km roundtrip, the longest animal migration ever recorded electronically. Expand
Structural evidence for direct interaction between the molecular components of the transverse tubule/sarcoplasmic reticulum junction in skeletal muscle
The results suggest the presence of a large junctional complex spanning the two junctional membranes and intervening gap, which is an ideal candidate for a mechanical coupling hypothesis of excitation-contraction coupling at the triadic junction. Expand
Philopatry and migration of Pacific white sharks
It is hypothesized that this strong homing behaviour of eastern Pacific white sharks has maintained the separation of a northeastern Pacific population following a historical introduction from Australia/New Zealand migrants during the Late Pleistocene. Expand
Migration and habitat of white sharks (Carcharodon carcharias) in the eastern Pacific Ocean
Satellite telemetry studies of 20 adult and sub-adult white sharks in the eastern North Pacific during 1999–2005 revealed long distance seasonal migrations from the coast of California to an offshore focal area 2,500 km west of the Baja Peninsula, as well as the Hawaii Islands. Expand
Vertical and horizontal migrations by the jumbo squid Dosidicus gigas revealed by electronic tagging
Dosidicus gigas is a large and powerful oceanic squid that is economically valuable and eco- logically important in the eastern Pacific Ocean. We employed electronic tagging methods to provide theExpand
Evolution of endothermy in fish: mapping physiological traits on a molecular phylogeny.
A molecular phylogeny of the Scombroidei has been determined by direct sequencing of a portion of the mitochondrial cytochrome b gene and indicates that the ability to warm the brain and retina arose independently in three lineages, each time in association with a movement into colder water. Expand
Why do tuna maintain elevated slow muscle temperatures? Power output of muscle isolated from endothermic and ectothermic fish.
It has been hypothesised that regional endothermy has evolved in the muscle of some tunas to enhance the locomotory performance of the fish by increasing muscle power output. Using the work loopExpand