Proposed Abstract Title

Pacific sand lance in the San Juan Archipelago: Synthesis of Research 2010-2015

Type of Presentation

Oral

Session Title

Forage Fish Management and Conservation in the Salish Sea

Location

2016SSEC

Description

Research developed in the Pelagic Ecosystem Function Apprenticeship at the University of Washington Friday Harbor Laboratories has led to the development of a six year time series on Pacific sand lance in the San Juan Archipelago. Although Pacific sand lance are one of the most important forage species through Northern Hemisphere marine systems, many unanswered questions remain about their abundance, distribution, habitat needs and constraints, life history, population structure, diet, diel and seasonal behaviors, and response to environmental conditions. Our research conducted in collaboration with 15 apprentices over six years has led to important insights on diet composition, experimental evidence of crepuscular behavior, acoustic data leading to insights on movements in relation to tides and currents on fine scales, trends in feeding and condition in response to environmental conditions and season progression, tagging results on movements between nearshore and offshore benthic habitats, and analyses of sediment association. Our results have demonstrated strong associations with certain types of benthic habitat and, in partnership with collaborators at the Moss Landing Labs, evaluated distribution for the species throughout the San Juan Channel. This talk will focus on diet and stable isotope results, sediment association and distribution and age structure of this important forage fish species in the central Salish Sea. The intent of this talk is not only to communicate results related to this research program but also explore possibilities for additional collaborations and to determine how this ongoing program might address information needs and priorities.

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Pacific sand lance in the San Juan Archipelago: Synthesis of Research 2010-2015

2016SSEC

Research developed in the Pelagic Ecosystem Function Apprenticeship at the University of Washington Friday Harbor Laboratories has led to the development of a six year time series on Pacific sand lance in the San Juan Archipelago. Although Pacific sand lance are one of the most important forage species through Northern Hemisphere marine systems, many unanswered questions remain about their abundance, distribution, habitat needs and constraints, life history, population structure, diet, diel and seasonal behaviors, and response to environmental conditions. Our research conducted in collaboration with 15 apprentices over six years has led to important insights on diet composition, experimental evidence of crepuscular behavior, acoustic data leading to insights on movements in relation to tides and currents on fine scales, trends in feeding and condition in response to environmental conditions and season progression, tagging results on movements between nearshore and offshore benthic habitats, and analyses of sediment association. Our results have demonstrated strong associations with certain types of benthic habitat and, in partnership with collaborators at the Moss Landing Labs, evaluated distribution for the species throughout the San Juan Channel. This talk will focus on diet and stable isotope results, sediment association and distribution and age structure of this important forage fish species in the central Salish Sea. The intent of this talk is not only to communicate results related to this research program but also explore possibilities for additional collaborations and to determine how this ongoing program might address information needs and priorities.