Fisheries and Oceans Canada

Graphic illustrations of the major ecosystems in the Pacific region, including details on the main ecological components, key ecological interactions, environmental drivers, and relevant human activities. Ecosystems range from the intertidal to the deep sea and include: High and low energy rocky...

The data in the files of this dataset represent the raw and standardized information of the distribution of the number of prey in stomachs of larval fish, the increments widths derived from larval fish, and the mortality rates, that were included in the study by Pepin (2024) into the probability...

This dataset is a compilation of algae and substrate observations that have been collected on DFO dive surveys between 1996 and 2021. Sources of this data include Marine Invertebrate Section/Shellfish Data Unit biological survey databases held for targeted species observations of green sea...

The data for this study are from a sub-Arctic coastal ecosystem (1000 km2) in the northwest Atlantic. The aim of the collection was to characterize the prey of the larvae of important fish species that occur in Conception Bay, Newfoundland. Plankton was sampled fortnightly from late May until...

Microsatelite frequencies by stock for several pacific marine species of fish.

The Atmospheric Forcing Index (AFI) utilizes standardized scores of the first component from a principal components analysis on the Aleutian Low Pressure Index (ALPI), Pacific Interdecadal Oscillation Index, and the northwesterly atmospheric circulation anomalies for the North Pacific (December...

The mean discharge (m3 s-1) of the Fraser River measured at Hope station. Presented as the mean discharge for an annual year (January through December) and for a flow year (April present year through March next year)....

This index is the cumulative summation of negative northwesterly atmospheric circulation frequency anomalies: Z (westerly), M1, (northwesterly), and M2 (southwesterly) for December through March. An increasing trend in Pacific Circulation Index (PCI) reflects increased westerly and southwesterly...

This study constitutes the first quantitative assessment of winter use of the northern Strait of Georgia by killer whales, which presents a substantial contribution to the limited knowledge of killer whale habitat use in British Columbia during the winter. Passive acoustic monitoring revealed...

The smallest marine mammals in North America, sea otters occupy chilly coastal waters in the central and north Pacific Ocean. Averaging 1.2 metres in length, male sea otters typically weigh about 45 kilograms. Females are slightly smaller. Otters have large, flat heads, large teeth to crush...

Beach core data samples consist of capelin eggs and larvae extracted from beach sites using sediment cores at high, medium and low tide. These sites are identifiable by a location or community code. The capelin egg totals and pre-emergent larvae totals are computed annually and daily. Data...

Five fixed sites at Bellevue Beach inshore area have been sampled with surface plankton tows from 2001-2021. Emergent larvae are sampled from the first to last day of emergence in the summer (July-August), which can result in surface tows being conducted every 24-72 hours for 6-8 weeks. This...

Beach emergence data samples consist of capelin larvae only. These samples are extracted from various beach sites at high tidal conditions, using a modified beach seine with a plankton net fitting that was towed for 40 m along the beach edge. Data series is from 1990-2012. See Nakashima and...