Project: adb27400-501e-44ea-9763-82aa1a3c7f99

Metadata Format
Project Title
Assessing effects of climate change and ocean acidification on sea urchin productivity and trophic interactions in the Aleutian Islands; Consequences
Description
Assessing effects of climate change and ocean acidification on sea urchin productivity and trophic interactions in the Aleutian Islands; Consequences for sea otter recovery
Point of Contact(s)
LCC Network Data Steward
LCC Network Data Manager
lccdatasteward@fws.gov
Aleutian Bering Sea Islands LCC
Aleutian Bering Sea Islands LCC
Aaron Poe
LCC Science Coordinator
Tim Tinker
Project Manager
3020 State University Dr. East, Modoc Hall, Suite 4004
Sacramento, California 95819
V: +1 831 4592357
ttinker@usgs.gov

Project Abstract

We propose using an existing, longterm data set of sea urchin production, sea otter performance, and ecosystem state metrics from the last 30 years to build a spatially explicit sea otter population viability analysis (PVA) model, incorporating climate change effects. We propose a 3-pronged approach in year 1 of this project to evaluate (obj. 1) variability in sea urchin demographics over space and time to identify scaledependent patterns of variation in production using existing datasets, (obj. 2) define the direct effects of climate change and ocean acidification on sea urchin productivity through indepth literature review and contributions from experiments by collaborators, and (obj. 3) determine how effects of environmental change on prey resources will translate to upper trophic levels, influencing sea otter performance through a dynamic trophiccascade model. In year 2 of this project (obj. 4) we will incorporate results from year 1 into an Aleutian Island Sea Otter PVA model, providing a spatially resolved picture of how direct effects of climate change to sea urchins will impact recovery of the threatened SW stock of sea otters. Each objective will produce data products and GIS layers, made publicly available, which will forecast the potential recovery outcome for sea otters, and the nearshore ecosystem in the face of multiple environmental stressors.

Supplemental Info: None Provided.

Project Links

Project Keywords

  • ISO 19115 Topic Category (isoTopicCategory):
    • biota,
    • environment,
    • oceans
  • Global Change Master Directory (GCMD) Science Keywords (theme):
    • OTTERS,
    • OCEANS,
    • SALINITY,
    • OCEAN SALINITY RECONSTRUCTION
  • End User Types - Landscape Conservation Cooperatives (LCC End User Type):
    • Academics & scientific researchers,
    • Conservation NGOs,
    • Federal resource managers,
    • Hunters & anglers,
    • Interested public,
    • K-12 students & teachers,
    • State agencies
  • Project Category - Landscape Conservation Cooperatives (LCC Project Category):
    • Conservation Design,
    • Conservation Planning,
    • Data Acquisition and Development,
    • Data Management and Integration,
    • Population & Habitat Evaluation/Projection