Monitoring marine mammal populations is a key component for assessing population status
according to both national and international legislations. Traditional monitoring methods …

This review considers the effect of anthropogenic sound on beaked whales2. Two major
conclusions are presented:(1) gas-bubble disease, induced in supersaturated tissue by a …

Methods are developed for estimating the size/density of cetacean populations using data
from a set of fixed passive acoustic sensors. The methods convert the number of detected …

We assessed scientists' ability to detect declines of marine mammal stocks based on recent
levels of survey effort, when the actual decline is precipitous. We defined a precipitous …

Mass strandings of beaked whales (family Ziphiidae) have been reported in the scientific
literature since 1874. Several recent mass strandings of beaked whales have been reported …

Cetacean abundance is estimated for the US Exclusive Economic Zone (EEZ) around the
Hawaiian Islands based on a ship line‐transect survey from August to November, 2002 …

Tests of an unmanned airborne system (UAS) for surveys of marine mammals were
conducted near Port Townsend, Washington. Sixteen surveys were conducted over a 10-d …

Passive acoustic methods are increasingly being used to estimate animal population
density. Most density estimation methods are based on estimates of the probability of …

At least ten species of beaked whales inhabit the North Pacific, but little is known about their
abundance, ecology, and behavior, as they are elusive and difficult to distinguish visually at …

Abstract The Gulf of Alaska is an important habitat for a diverse array of marine mammals,
many of which were severely depleted by historical whaling. To study current cetacean …