Fisheries and Oceans Canada

This series documents the status of different stocks of fish, invertebrates and marine mammals in Canada as well as some ecosystem and environmental issues. From 1993 to 1996, and 2003 to 2004, Stock Status Reports were numbered by year and sequential number (i.e.: 1993/001). For 1997 to 2002,...

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...

The Proceedings Series contains publications which record the activities at meetings or workshops of which DFO is a sponsor. The Proceedings generally record decisions, recommendations, and major points of discussion at these meetings and workshops. Formats in the Proceedings Series are flexible,...

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...

Data from: Stredulinsky et al. (2021) Family feud: permanent group splitting in a highly philopatric mammal, the killer whale (Orcinus orca). Behavioural Ecology and Sociobiology. https://link.springer.com/article/10.1007/s00265-021-02992-8. Group cohesion and demographic parameters were derived...

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...