NAMERA Diadromous Fish Analysis

Seasonal trends and weighted persistence for 3 target species:  Blueback herring, American shad, and Atlantic mackerel

The Trend in Abundance Metric was developed to address the following question concerning the distribution of specific fish species relative to places in the North Atlantic Marine Ecoregion:

Where in the ecoregion has the abundance been increasing or decreasing? (trends) The Weighted Persistence metric was developed to address the following questions concerning the distribution of specific fish species relative to places in the North Atlantic Marine Ecoregion:

Where in the ecoregion has the species been consistently found over time? (persistence)

Where in the ecoregion is the species consistently found in high abundances? (persistence weighted by abundance).

Data and Resources

Field Value
accessLevel public
bureauCode {010:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
datagov_dedupe_retained 20211110222844
identifier 5408c421e4b0621a5983c269
metadata_type geospatial
modified 2018-02-08
publisher LCC Network
resource-type Dataset
source_datajson_identifier true
source_hash 369f8eb54c6748814a7c8d6a316e71573bf611e3
source_schema_version 1.1
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • abundance
  • amerigeo
  • amerigeoss
  • ckan
  • geo
  • geoss
  • marine
  • namera
  • national
  • north-america
  • seasonal
  • trends
  • united-states
  • weighted-persistence
isopen False
license_id notspecified
license_title License not specified
maintainer (Point of Contact); North Atlantic Landscape Conservation Cooperative (Point of Contact)
maintainer_email lccdatasteward@fws.gov
metadata_created 2025-11-19T21:32:10.734969
metadata_modified 2025-11-19T21:32:10.734973
notes Seasonal trends and weighted persistence for 3 target species:&nbsp; <br /> Blueback herring, American shad, and Atlantic mackerel <br /> <br /> <span style="color:rgb(85, 85, 85); font-size:12px">The Trend in Abundance Metric was developed to address the following question concerning the distribution of specific fish species relative to places in the North Atlantic Marine Ecoregion:</span> <br /> <span style="color:rgb(85, 85, 85); font-size:12px">Where in the ecoregion has the abundance been increasing or decreasing? (trends)<br /> <br /> The Weighted Persistence metric was developed to address the following questions concerning the distribution of specific fish species relative to places in the North Atlantic Marine Ecoregion:</span> <br /> <span style="color:rgb(85, 85, 85); font-size:12px">Where in the ecoregion has the species been consistently found over time? (persistence)</span> <br /> <span style="color:rgb(85, 85, 85); font-size:12px">Where in the ecoregion is the species consistently found in high abundances? (persistence weighted by abundance).</span>
num_resources 6
num_tags 14
title NAMERA Diadromous Fish Analysis