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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.


NameSocrata field nameColumn name in sgr mountData typeDescription
ExperimentexperimentexperimentNumberIdentifies which of the two experiments (2011 or 2012) the data is associated with
Initial countinitial_countinitial_countNumberThe number of crabs of that species that were initially present in each tank
TanktanktankNumberTank ID number
TreatmenttreatmenttreatmentNumber2011 experiment had two treatments: 20 and 5 which represent the starting number of crabs in each tank. In 2012 there were three species combination: RKC- red king crab only, BKC- blue king crab only, RKC/BKC- a mixture of red and blue king crabs
DaydaydayNumberTime in days from the beginning of the experiment. The first day is day 0.
SpeciesspeciesspeciesTextIndicates the species the observation was made on. RKC- red king crab, BKC- blue king crab
IDididNumberAn automatically generated sequential number that identified each unique observation
HabitathabitathabitatTextIndicates the habitat 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
CountcountcountNumberThe number of live crab of that species that were present on the indicated day
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