ABSTRACT 1 In response to conservation and management concerns about gray whale
Eschrichtius robustus population and stock structure, we provide an overview of the life …

During traditional boat-based surveys of marine megafauna, behavioral observations are
typically limited to records of animal surfacings obtained from a horizontal perspective …

Baleen whales store energy gained on foraging grounds to support reproduction and other
metabolic needs while fasting for long periods during migration. Whale body condition can …

Photographic and genetic studies have revealed the complex population structure of
migratory large whales. Most research and management are geographically based, focusing …

The Northern California Current (NCC) is a seasonally productive and open ecosystem. It is
home to both a diverse endemic community and to seasonally transient species. Productivity …

Describing individual morphology and growth is key for identifying ecological niches and
monitoring the health and fitness of populations. Eastern North Pacific ((ENP), approximately …

The ocean continues to be a sink for microparticle (MP) pollution, which includes
microplastics and other anthropogenic debris. While documentation of MP in marine …

Knowledge of baleen whales' reproductive physiology is limited and requires long-term
individual-based studies and innovative tools. We used 6 years of individual-level data on …

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 …

Photo-identification methods depend on markings that are stable over time. Using a large
dataset of photographs taken over a 31-year period, we evaluate the reliability, rate of …