Gregory, S.; Arismendi, I. 2023. Aquatic Vertebrate Population Study in Mack Creek, Andrews Experimental Forest, 1987 to present Long-Term Ecological Research Andrews Forest LTER Site. [Database]. Available: https://andrewsforest-stage.forestry.oregonstate.edu/data/fsdb-data-catalog/AS006 Accessed 2026-05-10.

Populations of Coastal Cutthroat trout (Oncorhynchus clarkii clarkii) in two standard reaches of Mack Creek in the H.J. Andrews Experimental Forest have been monitored since 1987. Monitoring of Coastal Giant Salamanders, Dicamptodon tenebrosus began in 1993. The two standard reaches are in a section of clearcut forest (ca. 1963) and an upstream 500 year old coniferous forest. Sub-reaches are sampled with 2-pass electrofishing, and all captured vertebrates are measured and weighed. Additionally, a set of channel measurements are taken with each sampling. This study constitutes one of the longest continuous records of salmonid populations on record.

Temporal coverage: 1987-10-06 to 2022-09-08

Geographic coverage: Mack Creek, H. J. Andrews Experimental Forest, western Oregon

Spatial coverage:

Bounds: W -122.16815000, E -122.16381000, N 44.22146666, S 44.21566200

• To provide a long-term record of populations in aquatic vertebrates, particularly the salmonid fish, cutthroat trout. These trends are related to land use and disturbance histories.

Title: Long-Term Ecological Research

• Linda R. Ashkenas
  Role: Other Researcher
  Oregon State University;Dept. of Fisheries and Wildlife;104 Nash Hall, Corvallis, OR, 97331, USA
  Phone: (541) 737-1966
  Email: linda.ashkenas@oregonstate.edu
• Stanley V. Gregory
  Role: Creator
  Oregon State University;Dept. of Fisheries and Wildlife;Nash Hall 104, Corvallis, OR, 97331, USA
  Phone: (541) 737-1951
  Email: stanley.gregory@oregonstate.edu
  URL: http://oregonstate.edu/dept/pnw-erc/personnel/gregory.htm
• Randall C. Wildman
  Role: Other Researcher
  Oregon State University;Dept. of Fish and Wildlife, Corvallis, OR, 97331, USA
  Email: wildmanr@retiree.oregonstate.edu
• Ivan Arismendi
  Role: Principal Investigator
  3100 SW Jefferson Way, Corvallis, Oregon, 97330, USA
  Phone: 541-750-7443, 541-231-8921
  Email: ivan.arismendi@oregonstate.edu, ivanarsmendi@gmail.com
  URL: https://fw.oregonstate.edu/users/ivan-arismendi
• Ivan Arismendi
  Role: Creator
  3100 SW Jefferson Way, Corvallis, Oregon, 97330, USA
  Phone: 541-750-7443, 541-231-8921
  Email: ivan.arismendi@oregonstate.edu, ivanarsmendi@gmail.com
  URL: https://fw.oregonstate.edu/users/ivan-arismendi
• Brooke E. Penaluna
  Role: Other Researcher
  Email: brooke.penaluna@usda.gov, Brooke.Penaluna@oregonstate.edu
  URL: https://www.fs.fed.us/pnw/lwm/aem/people/penaluna.html
• Lauren Elizabeth Zatkos
  Role: Other Researcher
  Email: LaurenZatkos@gmail.com
• Emilee Mowlds
  Role: Other Researcher
  Email: emilee.mowlds@oregonstate.edu
• Dave Leer
  Role: Other Researcher
  Email: creekwalkerphotography@gmail.com

• Information Manager
  Andrews Forest LTER Program, US Forest Service Pacific Northwest Research Station, 3200 SW Jefferson Way, Corvallis, OR, 97331
  Email: hjaweb@lists.oregonstate.edu
  URL: http://andrewsforest.oregonstate.edu/
• Linda R. Ashkenas
  Oregon State University;Dept. of Fisheries and Wildlife;104 Nash Hall, Corvallis, OR, 97331, USA
  Phone: (541) 737-1966
  Email: linda.ashkenas@oregonstate.edu
• Stanley V. Gregory
  Oregon State University;Dept. of Fisheries and Wildlife;Nash Hall 104, Corvallis, OR, 97331, USA
  Phone: (541) 737-1951
  Email: stanley.gregory@oregonstate.edu
  URL: http://oregonstate.edu/dept/pnw-erc/personnel/gregory.htm
• Randall C. Wildman
  Oregon State University;Dept. of Fish and Wildlife, Corvallis, OR, 97331, USA
  Email: wildmanr@retiree.oregonstate.edu

• Andrews Forest LTER Site
  Role: Publisher
  Forest Ecosystems and Society Department in Forestry, Oregon State University, 201K Richardson Hall, Corvallis, OR, 97331-5752
  Phone: (541) 737-8480
  Email: lterweb@lists.oregonstate.edu
  URL: http://andrewsforest.oregonstate.edu/

Populations of Coastal Cutthroat trout (Oncorhynchus clarkii clarkii) in two standard reaches of Mack Creek in the H.J. Andrews Experimental Forest have been monitored since 1987. Monitoring of Coastal Giant Salamanders, Dicamptodon tenebrosus began in 1993. The two standard reaches are in a section of clearcut forest (ca. 1963) and an upstream 500 year old coniferous forest. Sub-reaches are sampled with 2-pass electrofishing, and all captured vertebrates are measured and weighed. Additionally, a set of channel measurements are taken with each sampling. This study constitutes one of the longest continuous records of salmonid populations on record. To provide a long-term record of populations in aquatic vertebrates, particularly the salmonid fish, cutthroat trout. These trends are related to land use and disturbance histories. Field Methods Methods - AS006

Purpose: To provide a long-term record of populations in aquatic vertebrates, particularly the salmonid fish, cutthroat trout. These trends are related to land use and disturbance histories.

Method Steps

Sampling

No software entries listed in this EML file.

• LTER controlled vocabulary: habitats (theme), populations (theme), demography (theme), ecology (theme), stream ecology (theme), population dynamics (theme), floods (theme), biomass (theme), disturbance (theme), timber harvest (theme), aquatic ecosystems (theme), streams (theme), animals (theme), vertebrates (theme), amphibians (theme), fishes (theme), trout (theme), reptiles (theme)
• Andrews Experimental Forest site thesaurus: resistance and resilience (theme)
• LTER core research areas: populations (theme), disturbance (theme)

• All Organisms: All Organisms
• Highest common category (ca. kingdom): Animalia
• Division or Phylum: Chordata
• Class: Actinopterygii
• Order: Salmoniformes
• Family: Salmonidae
• Genus: Oncorhyncus
• Species: Oncorhyncus clarkii clarkii
• Class: Amphibia
• Genus: Rhyacotriton
• Species: Rhyacotriton cascadae
• Order: Urodela
• Family: Dicamptodontidae
• Genus: Dicamptodon
• Species: Dicamptodon tenebrosus

No related dataset codes found in the EML text fields.

• Dodds, Walter K.; Robinson, Christopher T.; Gaiser, Evelyn E.; Hansen, Gretchen J.A.; Powell; Heather; Smith, Joseph M.; Morse, Nathaniel B.; Johnson, Sherri L.; Gregory,Stanley V.; Bell, Tisza; Kratz, Timothy K.; McDowell, William H. 2012. Surprises and Insights from Long-Term Aquatic Data Sets and Experiments. BioScience. 62(8): 709-721. doi: 10.1525/bio.2012.62.8.4
• Zatkos, Lauren E. . 2019. Structural Variations of Headwater Stream Food Webs Along Geophysical Gradients at the HJ Andrews Experimental Forest. Corvallis: Oregon State University. 83 p. M.S. thesis.
• Zatkos, Lauren; Arismendi, Ivan; Johnson, Sherri L.; Penaluna, Brooke E. 2021. Geophysical templates modulate the structure of stream food webs dominated by omnivory. Ecosphere. 12(3): e03444. doi: 10.1002/ecs2.3444

No related files listed in this EML file.

Data Use Agreement:

The re-use of scientific data has the potential to greatly increase communication, collaboration and synthesis within and among disciplines, and thus is fostered, supported and encouraged. This Data Set is released under the Creative Commons license CC BY "Attribution" (see: https://creativecommons.org/licenses/by/4.0/). Creative Commons license CC BY - Attribution is a license that allows others to distribute, remix, tweak, and build upon your work (even commercially), as long as you are credited for the original creation. This license accommodates maximum dissemination and use of licensed materials.

It is considered professional conduct and an ethical obligation to acknowledge the work of other scientists. The Data User is asked to provide attribution of the original work if this data package is shared in whole or by individual parts or used in the derivation of other products. A recommended citation is provided for each Data Set in the Andrews LTER data catalog (see: http://andlter.forestry.oregonstate.edu/data/catalog/datacatalog.aspx). A generic citation is also provided for this Data Set on the website https://portal.edirepository.org in the summary metadata page. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

While substantial efforts are made to ensure the accuracy of data and associated documentation, complete accuracy of data sets cannot be guaranteed and all data are made available "as is." The Data User should be aware, however, that data are updated periodically and it is the responsibility of the Data User to check for new versions of the data. The data authors and the repository where these data were obtained shall not be liable for damages resulting from any use or misinterpretation of the data.

General acknowledgement: Data were provided by the HJ Andrews Experimental Forest research program, funded by the National Science Foundation's Long-Term Ecological Research Program (DEB 2025755), US Forest Service Pacific Northwest Research Station, and Oregon State University.

License: Creative Commons Attribution 4.0 International Public License

Identifier: CC-BY-4.0

URL: https://creativecommons.org/licenses/by/4.0/

Maintenance update frequency: annually

Description

• An update history is logged and maintained with each new version of every dataset.

Change History

• Version1 (1993-10-01)
  Original metadata creation
• Version2 (2005-04-20)
  Moved database to SQL server
• Version4 (2008-01-08)
  Updated ent 1 & 2 for 2004-2007 data. Ran QC.
• Version5 (2010-12-27)
  Added sitecode and year for ease of interpreting data and added vert_index for use as a primary key.
• Version8 (2012-04-20)
  Added new data to entiy 1
• Version11 (2014-01-21)
  Updated dataset with data from 2011-2013.
• Version12 (2016-03-21)
  Updated dataset with data from 2014-2015.
• Version13 (2018-08-27)
  Updated dataset with data from, 2016-2017. Recreated data structures in SQL due to changes. Reloaded entire data collection for both entities
• Version14 (2020-02-25)
  Updated dataset with data from 2018-2019. This is the first set of data that I have received since PI and data collection responsibilities changed.
• Version15 (2022-06-16)
  Changed species (entity 1) from Olympic Torrent Salamander (RHOL) to Rhyacotriton cascadae (RHCA)=Cascade Torrent Salamander per researchers (Ivan and Brooke). The study abstract was also changed to reflect the correct species.
• Version16 (2023-03-14)
  Updated dataset with data from 2021-2022. There was no data for 2020 due to the fires. Redefined length1 and length2 for ONCL in entity 1 since this was collected differently over time, which is all outlined in the supplemental information. Moved length1 to length2 for 1987-1994 since these were total length.