Recorded sightings of seabirds close to and/or interacting with the boat, while capturing the live bait.

Recorded sightings of seabirds close to the boat and/or interacting with the tuna fishing, while capturing the tunas.

Sightings of turtles were recorded daily, at 6 different fixed periods (snap shots), when the boat was in navigation or search mode.

Sightings of cetaceans were recorded daily, at 6 different fixed periods (snap shots), when the boat was in navigation or search mode. Sightings were recorded at distances shorter and larger than 300 meters from the boat.

Other fish species caught during the tuna fishing operation that were commercialized. These species were caught along with the target species (tuna) by using pole and line.

El Atlas de biodiversidad marina del Mar Balear integra información marina con información relevante sobre diferentes grupos taxonómicos (desde fitoplancton a grandes especies) durante un periodo de más de 40 años de investigaciones y campañas.

The data were collected by the IBSS staff at several stations in the Mediterranean Sea during a cruise with the R/V N. Akademik S. Vavilov in 1959. This dataset contains abundance data (individuals per liter). No additional metadata is available.

Killer whale sightings in the Hebrides Sea between 1990 and 2006.

Densities and species composition of copepods on the Dutch Continental Shelf were determined.

In this study, systematic surveys were conducted to document the distribution of the harbor porpoise observed in the English Channel (North Sea, France).