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Presentation
Breeding Baby Unicorns: Assisted Reproduction of Pillar Coral in Florida
Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures
  • Karen L. Neely, Nova Southeastern University
  • Cindy Lewis
  • Andie Chan
  • Iliana B. Baums
Event Name/Location
39th Association of Marine Labs of the Caribbean Scientific Meeting / Punta Cana, Dominican Republic
Document Type
Conference Proceeding
Publication Date
5-21-2019
Keywords
  • Pillar coral,
  • Dendrogyra cylindrus,
  • Spawning,
  • Population structure
Abstract

The pillar coral population of the Florida Reef Tract has been well surveyed for its demographic and genetic population structure. Genetic analyses show great distances between distinct genets. When clonal ramets are excluded, size demographics are skewed towards large colonies with few to no juveniles. As such, it is highly likely that the species is reproductively extinct within the region. Six years of assisted reproduction in laboratory and field-based spawn collections have provided new information about the reproductive biology of the species and also yielded information on rearing strategies. Widespread hermaphroditism within genets, within ramets over multiple years, and even between regions of the same ramet have been documented. Variation in field spawning times during 2018 suggest potential for complete reproductive failure over an annual cycle. And delayed time of spawning in the lab suggests different cues for fragments removed from the field. Successful fertilization of field and laboratory-spawned gametes can be high, but settlement remains a bottleneck. Future efforts, including cryogenic sperm freezing, will continue to refine assisted reproductive efforts in order to build genetic diversity for eventual outplanting.

ORCID ID
0000-0003-0934-3256
Citation Information
Karen L. Neely, Cindy Lewis, Andie Chan and Iliana B. Baums. "Breeding Baby Unicorns: Assisted Reproduction of Pillar Coral in Florida" (2019)
Available at: http://works.bepress.com/karen-neely/23/