The National Marine Mammal Laboratories' California Current Ecosystem Program (AFSC/NOAA) initiated a long-term marking program of northern fur seals (Callorhinus ursinus) at San Miguel Island, California in 1975. A sample of up to 300 pups has been tagged in the foreflippers with various types and colors of tags each year between 1975 and the present. Resighting surveys for marked animals are conducted annually at summer breeding sites. Resightings are also obtained from the public when animals are observed on beaches or in fisheries.

This dataset contains data from underway fCO2 (seawater and atmospheric), temperature, and salinity measurements collected on 4 trans-Pacific cruises in 2015 as part of a ship-of-opportunity time-series. Cruise names and expocodes: CB2015_03 (AG5W20150328), CB2015_05 (AG5W20150524), CB2015_09 (AG5W20150930), CB2015_11 (AG5W20151120). Since 1992, underway CO2 observations have been made between New Zealand and the U.S. West Coast.

Suction cup attached multi-sensor tags were placed on beluga whales in Bristol Bay, Alaska, to collect depth, 3D acceleration and sound. Data were coupled with satellite tag data and stomach temperature data from the same individual in 2014. Hearing sensitivity was also collected on these individuals.

The overall objectives of this project are to document the dynamics of the remaining elkhorn populations in the upper Florida Keys and to compare its performance to other Caribbean locations. This is an on‐going monitoring project with thrice yearly surveys in the upper Florida Keys, annual surveys in Curaçao (2006‐2015) and only episodic surveys in Navassa (2006, 2009, 2012). Study units are 150 m2 plots in which all attached Acropora palmata colonies are mapped and surveyed each year. In Florida, individually tagged A.

Tropical Pacific Ocean dynamics during the Medieval Climate Anomaly (MCA) and Little Ice Age (LIA) are poorly characterized due to lack of evidence from the eastern equatorial Pacific. We reconstructed sea surface temperature, El Niño– Southern Oscillation (ENSO) activity, and the tropical Pacific zonal gradient for the past millennium from Galápagos ocean sediments. We document a “Mid - Millennium Shift” (MMS) in ocean - atmosphere circulation ~1500 -1650 CE, from a state with strong zonal gradient and dampened ENSO to one with weak gradient and amplified ENSO.

The difficulties associated with detecting population boundaries have long constrained the conservation and management of highly mobile marine species, especially for wide-ranging cetaceans such as killer whales (Orcinus orca). In this study, we use molecular genetic data to test a priori hypotheses about population subdivisions generated from a decade of killer whale surveys across the northern North Pacific.

Deep water sampling of in situ seawater and associated fauna (cruise DP01, May 1-8, 2015) aboard R/V Point Sur for an area encompassing roughly 28°N to 29°N and 87.5°W to 88.5°W. Submitted data in this dataset are the salinity, temperature, dissolved oxygen, and depth data from the ship's CTD, which is deployed at each of the DEEPEND stations. Depth of cast is variable, but extends from near-surface waters to below the euphotic zone. This data is used in the assessment of the water column's vertical structure, and for comparison with physical models.

As a part of National Marine Fisheries Service (NMFS) management of the endangered Cook Inlet beluga whale population, a database of opportunistic beluga whale sightings was compiled from reports made by the general public, aircraft patrols, wildlife surveys, and military and industry monitoring studies. Sightings are reported to NMFS Alaska Regional (AKR) office personnel either by voice- or e-mail. Sighting data are then transcribed and sent to the NMFS National Marine Mammal Laboratory (NMML) for entry into the database.

This dataset contains discrete measurements of dissolved inorganic carbon, total alkalinity, pH, dissolved oxygen, and nutrients collected at the buoy off the coast of New Hampshire in the years 2011-2015. University of New Hampshire, in conjunction with NOAA's Pacific Marine Environmental Laboratory, has been operating a buoy off the coast of New Hampshire since 2006.

The National Marine Mammal Laboratory (NMML) has deployed long-term passive acoustic recorders in various locations in Alaskan waters and in the High Arctic to determine spatio-temporal distribution of marine mammals as well as environmental and anthropogenic noise. Following the timing of peak calling among the various long-term recorders may provide some insight into finer-scale movements of cetaceans throughout the Bering, Chukchi, and Beaufort Seas. Changes in ambient noise levels can also be tracked.