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.
|Name||Socrata field name||Column name in ||Data type||Description|
|Density||density||density||Number||Indicates the number of crabs initial place in the tank at the beginning of the trial|
|Predator||predator||predator||Text||Indicates whether there was a predator present in the trial|
|Species||species||species||Text||Indicates the species the observation was made on. RKC- red king crab, BKC- blue king crab|
|Choice Trial||choice_trial||choice_trial||Number||A unique number given to each habitat choice trial|
|Number on Screen||number_on_screen||number_on_screen||Number||The number of crabs on the tank screen at the end of the trial. These were not included in any analyses.|
|Habitat Choices||habitat_choices||habitat_choices||Text||Indicates 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 Cobble||nunmber_on_cobble||nunmber_on_cobble||Number||The number of crabs on cobble habitat at the end of the trial. Blank cells indicate habitat was not available in this trial.|
|Temperature||temperature||temperature||Number||The temperature in the tank during the trial in degrees Celsius|
|Date||date||date||Calendar date||Date on which the observation was made|
|Number on Shell||number_on_shell||number_on_shell||Number||The number of crabs on shell habitat at the end of the trial. Blank cells indicate habitat was not available in this trial.|
|Number on Sand||number_on_sand||number_on_sand||Number||The number of crabs on sand habitat at the end of the trial. Blank cells indicate habitat was not available in this trial.|
|Predator CL||predator_cl||predator_cl||Number||The carapace length of the predator in millimeters.|