The presence of venous gas bubbles was not directly measured, but the dive profiles used were similar to other dive studies in which venous bubbles were detected by Doppler.
Recalculating the optimal swim speed using drag coefficients that accounted for the added effect of the tubes yields Uopt estimates of 1.3 (for F97SI), 1.2 (F97Handand 1.2 m s−1 (forBO) for the B trials, which are comparable to what we measured during the dive trials (Table 4).
Our brains are good at processing this sort of data, from observing blossoming cherry trees, to scuba diving on a coral reef, to measuring the beaks of finches.
By measuring the relative reflected intensities over a range of directions, the grain orientation vector (usually expressed as a pair of surface and dive angles) can be estimated.
You should have measured the distance he dived, the speed with which he slipped from some ultimate competitive grace to the confusion of the profoundest defeat.
We were unfortunately unable to measure the energetic cost for each dive because we allowed the sea lions to undertake bouts of dives, rather than single dives.
The "must-have accessory for the connected scuba diver" started out simply measuring dive depth and water temperature, but DiveNav has added many more measurements in its dive analyzer, including ascent rate, tank pressure profile, dive time remaining and CNS clock if you dive Nitrox (and if you have to ask, you don't).
The instruments measured the depths, speed, and acceleration and deceleration effects from wing strokes for more than 650 dives.
Wind speed and tide height were the two most important factors for determining foraging behavior, as measured by dive frequency and depth.
A recent tracking study of adult female elephant seals - with data from nearly 300 animals - measured one dive to more than 1.7km in depth.
