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Using the same methods as Webster (2003), the investigators artificially enhanced basslet recruitment by capturing new settlers (<2 cm total length) with dip nets and transferring them to new populations far from their natal reefs. Censuses commenced 24 hours after recruit manipulationsand continued weekly for two months. At the end of the eight week study period, the investigators calculated net per capita loss (the proportional change in abundance from the beginning to the end of the experiment) for each population.
This dataset contains counts of fairy basslet censused as part of a a controlled field experiment at reefs near Lee Stocking Island, Bahamas. (Part of sub-project titled, \"Lionfish effects on fairy basslet population dynamics\".)
\nTo quantify to what extent patterns in prey mortality have changed since the arrival of lionfish, the investigators replicated an in situ field manipulation of prey density that was originally conducted prior to the invasion using the same study sites. A controlled field experiment was conducted at two reefs near Lee Stocking Island, Bahamas, inhabited by 16 local populations of fairy basslet: eight with artificially enhanced recruitment versus eight with natural recruitment. Ledges were paired by habitat structure and one ledge from each pair was randomly assigned to receive artificially increased density of new basslet recruits, with the other in each pair left as a control.
BCO-DMO Processing Notes:
\n- Modified parameter names to conform with BCO-DMO naming conventions.
\n- Added lat and lon for each site from the metadata provided.
\n- 28-Dec-2017: removed embargo from dataset.