Sea Cucumber Trawl Density, 2010-2017

Aug 27, 2020 (Last modified Aug 8, 2022)
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Description:
This feature collection summarizes logbook records from the CDFW Marine Log System (MLS) showing the density of trawls landing sea cucumbers from 2010 to 2017. Data from CDFW trawl logs landing sea cucumbers were provided by the CDFW environmental scientist data steward, C. Mirales, to determine the start position, end position, vessel ID, tow or drag number ID, date, and species landed. Records were transformed and plotted to create straight line trawl tracks attributed with date and landings. Lines were filtered to remove records plotted on land and track lines greater than 25km in length. Records were selected for all sea cumber species and summarize by the ArcGIS line density function. Results are presented by a 1km cell GRID representing a 5km search radius. Units are reported as total length of trawls (Km) within the search area.
Data Provided By:
California Department of Fish and Wildlife, Marine Region GIS lab
Content date:
not specified
Spatial Resolution:
0.010449 (Degree)
Contact Organization:
Department of Fish and Wildlife, Marine Region
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License: This work is licensed under Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). Using the citation standards recommended for BIOS datasets (https://www.wildlife.ca.gov/Data/BIOS/Citing-BIOS) satisfies the attribution requirements of this license. Disclaimer: The State makes no claims, promises, or guarantees about the accuracy, completeness, reliability, or adequacy of these data and expressly disclaims liability for errors and omissions in these data. No warranty of any kind, implied, expressed, or statutory, including but not limited to the warranties of non-infringement of third party rights, title, merchantability, fitness for a particular purpose, and freedom from computer virus, is given with respect to these data.
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Tags:
cdfw, marine loge system, fisheries, logs, ocean, trawl, economy, logbook, marine, california department of fish and wildlife, mls, sea cucumber, marine log system
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