| crab_tag {learningr} | R Documentation |
Crab tag
Description
Depth and temperature data from a sensor tag attached to an edible crab (Cancer Pangurus) in the North Sea in 2008 and 2009.
Format
A list with 5 elements, as follows.
id_block is a list with 2 elements
- Firmware Version No
Version of the firmware used in the crab tag.
- Firmware Build Level
Build level of the firmware used in the crab tag.
tag_notebook is a list with 5 elements.
- Mission Day
Number of days of data.
- Last Deployment Date
Date and time that the tag was released into the sea.
- Deployed by Host Version
UNKNOWN
- Downloaded by Host Version
UNKNOWN
- Last Clock Set Date
UNKNOWN
lifetime_notebook is a list with 3 elements.
- Tag ID
The unique ID of the tag.
- Pressure Range
UNKNOWN
- No of sensors
The number of sensors on the tag.
deployment_notebook is a data frame with X columns.
- Start
Start date and time of recording.
- Stop
Stop date and time of recording.
- Logging Rate
UNKNOWN
- Pointer
UNKNOWN
- PA inc
UNKNOWN
- sensors
UNKNOWN
- Flags
UNKNOWN
- Resolution
UNKNOWN
- Fast Rate
UNKNOWN
- V1
UNKNOWN
- V2
UNKNOWN
daylog is a data frame with X columns.
- Mission.Day
Integer number of days since the start of recording.
- Date
Date of record.
- Max.Temp
Maximum temperature (Celcius) recorded that day.
- Min.Temp
Minimum temperature (Celcius) recorded that day.
- Max.Depth
Maximum depth (m) recorded that day.
- Min.Depth
Minimum depth (m) recorded that day.
- Batt.Volts
Voltage of tag battery.
Note
This data was kindly supplied by Ewan Hunter of CEFAS. It is part of a larger dataset consisting of many crabs.
References
Ewan Hunter ewan.hunter@cefas.gov.uk ran the project where the data was collected. A full analysis is in Hunter, E, Eaton, D, Stewart, C, Lawler, A & Smith, M. 2013. Edible crabs "go west": migrations and incubation cycle revealed by electronic tags. https://www.ncbi.nlm.nih.gov/pubmed/23734180. Richard Cotton richierocks@gmail.com made some modifications while importing it into R.