noaa-fisheries-afsc-data-socrata/afscracesaplong-data-from-habitat-predation-growth-3i52-an3e
 
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AFSC/RACE/SAP/Long: Data from: Habitat, predation, growth, and coexistence: Could interactions between juvenile red and blue king crabs limit blue king crab productivity?

This data set is from a series of laboratory experiments examining the interactions between red and blue king crabs and habitat. We examined how density and predator presence affect habitat choice by red and blue king crabs. Further experiments determined how temperature and habitat affect predation by year-1 red king crab on year-0 blue king crab. Finally, long-term interaction experiments examined how habitat and density affected growth, survival, and intra-guild interactions between red and blue king crab.

Columns

NameSocrata field nameColumn name in sgr mountData typeDescription
DensitydensitydensityNumberIndicates the number of crabs initial place in the tank at the beginning of the trial
PredatorpredatorpredatorTextIndicates whether there was a predator present in the trial
SpeciesspeciesspeciesTextIndicates the species the observation was made on. RKC- red king crab, BKC- blue king crab
Choice Trialchoice_trialchoice_trialNumberA unique number given to each habitat choice trial
Number on Screennumber_on_screennumber_on_screenNumberThe number of crabs on the tank screen at the end of the trial. These were not included in any analyses.
Habitat Choiceshabitat_choiceshabitat_choicesTextIndicates the two habitats present in the tank: Sand represents bare sand, Shell represents sand with a layer of bivalve shells on top, and Cobble represents sand with a layer of cobble on top
Number on Cobblenunmber_on_cobblenunmber_on_cobbleNumberThe number of crabs on cobble habitat at the end of the trial. Blank cells indicate habitat was not available in this trial.
TemperaturetemperaturetemperatureNumberThe temperature in the tank during the trial in degrees Celsius
DatedatedateCalendar dateDate on which the observation was made
Number on Shellnumber_on_shellnumber_on_shellNumberThe number of crabs on shell habitat at the end of the trial. Blank cells indicate habitat was not available in this trial.
Number on Sandnumber_on_sandnumber_on_sandNumberThe number of crabs on sand habitat at the end of the trial. Blank cells indicate habitat was not available in this trial.
Predator CLpredator_clpredator_clNumberThe carapace length of the predator in millimeters.
Upstream Metadata