Poissons sans frontiers: Comparing contiguous surveys for major ecological and commercial species in the Northwest Atlantic, with a focus on trends, synchronies and coherences ...

• Main Authors: Nye, Janet, Bundy, Alida, Shackell, Nancy, Friedland, Kevin, Link, Jason
• Format: Conference Object
• Language: unknown
• Published: ASC 2008 - Theme session E 2024
• Subjects: Technologies and data; Pressures, impacts, conservation, and management; Canada; Northwest Atlantic
• Online Access: https://dx.doi.org/10.17895/ices.pub.25243639.v1; https://ices-library.figshare.com/articles/conference_contribution/Poissons_sans_frontiers_Comparing_contiguous_surveys_for_major_ecological_and_commercial_species_in_the_Northwest_Atlantic_with_a_focus_on_trends_synchronies_and_coherences/25243639/1

No abstracts are to be cited without prior reference to the author.Fish know no national borders, yet for a plethora of reasons, we delineate fish into distinct population or stock units that often reflect human institutional borders more so than biological factors. Across a wide variety of taxa, population dynamics can be synchronous over a range of spatial scales. Common patterns are generally attributed to a meta-population structure supported through dispersal, or a common response to large scale environmental forcing. In the NW Atlantic, common species occur in the broader Gulf of Maine Area (GOMA), yet the area is managed in the south by the US and in the north by Canada. Many species occurring in the GOMA are subject to common forcing resulting in coherent patterns of recruitment and growth among distinct populations. To evaluate these issues, we compared six survey biomass time series of 19 representative species from US and Canadian waters. We further explored the biomass trends of aggregate groups ...