Population dynamics of a commercial sponge in Biscayne Bay, Florida

W. P. Cropper, Diego Lirman, S. C. Tosini, Daniel DiResta, J. Luo, J. Wang

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The dynamics of glove sponge (Spongia graminea) population in Biscayne Bay, Florida were investigated using a series of matrix population models, a hydrodynamic model, and a GIS data base. Sponges at Billy's Point, on the eastern margin of Biscayne Bay, were sampled between 1993 and 1995 and resampled in 2000 for model calibration and testing. An iterative procedure was used to fit unmeasured fecundity and a growth parameter by minimizing the 1993 to 2000 simulated differences from the observed year 2000 size class distribution. A density dependent model was found to fit the total population size in 2000 better than the density independent matrix model. Systematic sampling of the bay was used to identify four local populations with sponge densities above 50 ha-1. The three western populations experienced salinity bêlow 25, based on hydrodynamic model outputs for 1995, whereas the eastern Billy's Point population had a stable ocean salinity environment. The hydrodynamic model was used to simulate larval transport between local populations as lagrangian drifting particles. These simulations indicated that the Billy's Point population was likely to be demographically closed.

Original languageEnglish
Pages (from-to)13-23
Number of pages11
JournalEstuarine, Coastal and Shelf Science
Volume53
Issue number1
DOIs
StatePublished - Aug 29 2001

Fingerprint

Spongia
population dynamics
hydrodynamics
larval transport
salinity
matrix
sponge
fecundity
population size
calibration
oceans
GIS
sampling
ocean

Keywords

  • Biscayne Bay
  • Coastal lagoons
  • Florida coast
  • Larval transport
  • Population dynamics
  • Recruitment
  • Salinity gradient
  • Simulation
  • Sponges

ASJC Scopus subject areas

  • Aquatic Science
  • Oceanography

Cite this

Population dynamics of a commercial sponge in Biscayne Bay, Florida. / Cropper, W. P.; Lirman, Diego; Tosini, S. C.; DiResta, Daniel; Luo, J.; Wang, J.

In: Estuarine, Coastal and Shelf Science, Vol. 53, No. 1, 29.08.2001, p. 13-23.

Research output: Contribution to journalArticle

Cropper, W. P. ; Lirman, Diego ; Tosini, S. C. ; DiResta, Daniel ; Luo, J. ; Wang, J. / Population dynamics of a commercial sponge in Biscayne Bay, Florida. In: Estuarine, Coastal and Shelf Science. 2001 ; Vol. 53, No. 1. pp. 13-23.
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