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Observations on the reproductive ecology of Thalassia testudinum (Hydrocharitaceae). 3. Spatial and temporal variations in reproductive patterns within a seagrass bed
Durako, M.J.; Moffler, M.D. (1985). Observations on the reproductive ecology of Thalassia testudinum (Hydrocharitaceae). 3. Spatial and temporal variations in reproductive patterns within a seagrass bed. Aquat. Bot. 22(3-4): 265-276
In: Aquatic Botany. Elsevier Science: Tokyo; Oxford; New York; London; Amsterdam. ISSN 0304-3770, more
Peer reviewed article  

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Keywords
    Population density; Population structure; Sea grass; Sex ratio; Sexual reproduction; Hydrocharitaceae Jussieu [WoRMS]; Thalassia testudinum K.D.Koenig, 1805 [WoRMS]; Marine

Authors  Top 
  • Durako, M.J.
  • Moffler, M.D.

Abstract
    Spatial and temporal varitaions in the reproductive patterns of a population of Thalassia testudinum Banks ex Koening in Tampa Bay, Florida were observed from 1981 to 1983. Reproductive densities of 11.4, 20.7 and 10.0% were observed in 1981, 1982 and 1983, respectively. The significantly higher reproductive density in 1982 was due to a 3-fold increase in the temporally labile male phenotype. Sex ratios were male-biased only in 1982. In contrast, female short-shoot densities did not vary significantly during the study. Total and reproductive short-shoot densities generally decreased from the shoreward (shallower) fringe to the seaward (deeper) fringe of the bed. Spatial variations in female short-shoot densities were significant.

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