A video lander study of a nearshore rocky reef, Information Report 2019-10

Identification Information

Citation

Originator: Greg Krutzikowsky

Publish Date: 12/18/2019

Online Link: https://www.dfw.state.or.us/MRP/publications/#Research

BPA Project #:

Contact Information

Agency: Oregon Department of Fish and Wildlife

Name: Greg Krutzikowsky

Job Position: Nearshore Project Leader

Telephone: 541-867-4741

E-Mail Address: greg.krutzikowsky@odfw.oregon.gov

Description

Abstract: A video lander was used to investigate a nearshore rocky reef system from Cape Foulweather to Alsea Bay. Video from 145 lander drops on the 30.19 square kilometers of rocky reef system were analyzed. Sampling depth ranged from 5.4 to 41.0 m. The focus of the work was on the fish community, but invertebrates observed were also recorded as was wildlife observed at the surface near the boat. Benthic substrates and biogenic habitat information was also recorded. A conductivity temperature and depth instrument equipped with a dissolved oxygen sensor was used to sample the water column at lander drop locations. Estimates of fish density and abundance on the reef system are provided. The effects of sampling for different time periods was examined. A canonical correspondence analysis was utilized to examine the fish community and environmental factors that affected it.

Purpose:

Time Period of Content:

Geographic Extent: 44.772 degrees N to 44.419 degrees N at depths from 5.4 to 41.0m

Status: Final

Use Constraints:

Format: PDF

Data Quality Information

Lineage-Source:

Data Information

No data information was supplied.

Entity and Attribute Information

Attributes Description: Fish abundance information and classification of bottom habitat from visual analysis of video recordings are the primary data.

Is a physical copy maintained for reference at Headquarters? Unknown