Multidecadal growth‐increment chronologies for North Pacific and North Atlantic rockfish species ...

• Main Authors: Black, Bryan A., Schroeder, Isaac D., Sydeman, William J., Bograd, Steven J.
• Format: Conference Object
• Language: unknown
• Published: ASC 2011 - Theme session A 2024
• Subjects: Ecosystem observation, processes and dynamics; Pressures, impacts, conservation, and management; Pacific; North Atlantic
• Online Access: https://dx.doi.org/10.17895/ices.pub.25028609; https://ices-library.figshare.com/articles/conference_contribution/Multidecadal_growth_increment_chronologies_for_North_Pacific_and_North_Atlantic_rockfish_species/25028609

No abstracts are to be cited without prior reference to the author.Tree‐ring (dendrochronology) techniques have been increasingly applied to develop environmentally sensitive growth chronologies from annual otolith increment widths of various rockfish (Sebastes) species. Final chronologies are multidecadal, exactly dated, and can be used to (i) describe long‐term growth histories, (ii) determine the effects of climate on growth, and (iii) integrate with other biological time‐series to quantify relationships across diverse taxa and ecosystems. In the California Current of the Northeast Pacific, splitnose and yelloweye rockfish chronologies span as many as 71 years and strongly relate to each other as well as other biological indicators, including records of seabird reproductive success. Synchrony across these diverse timeseries is driven by their shared sensitivities to winter ocean conditions, and years with favourable climate (strong February and March upwelling) are characterized by robust rockfish growth, ...