The effects of the cyanobacterium Lyngbya majuscula and artificial shading on the seagrass Halodule wrightii.Report as inadecuate


 The effects of the cyanobacterium Lyngbya majuscula and artificial shading on the seagrass Halodule wrightii.


The effects of the cyanobacterium Lyngbya majuscula and artificial shading on the seagrass Halodule wrightii. - Download this document for free, or read online. Document in PDF available to download.



Type of Resource: text

Genre: thesis

Issuance: multipart monograph

Date Issued: 2007

Physical Form: electronic

Physical Form: electronic resource

Extent: v, 41 leaves : ill.

Language(s): English

Summary: Extensive blooms of the marine cyanobacterium Lyngbya majuscula occurred during 2006 in Halodule wrightii seagrass beds. We examined the effects of L. majuscula blooms on seagrass by removal treatments and assessed if this was primarily an effect of shading by conducting artificial shade treatments. We tested the effects of L. majuscula removal and artificial shading on fifty individual 0.25 m2 experimental seagrass plots infested with L. majuscula in a fully crossed, two-way experiment. Measurements included blade elongation, biomass, and stem density. Blade lengths of H. wrightii were significantly increased by the presence of artificial shading and L. majuscula. L. majuscula removal resulted in increased below ground biomass in shaded plots, suggesting an increase in stores, when possible, for accelerated recovery following a shading event. Adverse L. majuscula effects occurred after declines in bloom biomass indicating that L. majuscula can have a prolonged negative effect on H. wrightii production.

Identifier: 314763484 (oclc), 11597 (digitool), FADT11597 (IID), fau:1329 (fedora)

Note(s): by Kathryn A. Tiling.Thesis (B.A.)--Florida Atlantic University, Honors College, 2007.Bibliography: leaves 40-41.Electronic reproduction. Boca Raton, Fla., 2007. Mode of access: World Wide Web.

Subject(s): Cyanobacteria -- Biological controlSeagrasses -- PhysiologySeagrasses -- Effect of salt onRestoration ecologyHalodule wrightii -- Morphology

Held by: FBoU FAUER

Persistent Link to This Record: http://purl.flvc.org/FAU/11597

Owner Institution: FAU



Author: Tiling, Kathryn A.

Source: http://fau.digital.flvc.org/islandora/object/fau%3A1329



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