Ecological Effects of Removing Ulva spp. fromAvon-Heathcote Estuary
Macroalgal Blooms
(Sprache: Englisch)
Macroalgal blooms are increasing world-wide and havenegative effects on benthic invertebrates andsediments. These include loss of species diversityand development of hostile sediment environments.This book considers ecological effects of Ulva spp.,and its...
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Macroalgal blooms are increasing world-wide and havenegative effects on benthic invertebrates andsediments. These include loss of species diversityand development of hostile sediment environments.This book considers ecological effects of Ulva spp.,and its mechanical removal on benthic invertebratesand sediments in Avon-Heathcote Estuary, New Zealand. Experimental removal of Ulva spp. was conducted bymechanical broom at two sites; an open, exposedcentral sand flat, and McCormacks Bay, a shallow,sheltered mud flat. Removing Ulva spp. had severalimmediate effects these included a significantdecrease in abundance of mobile epifauna and anincrease in abundance of infauna. There was no effectof Ulva spp. removal on Austrovenus stutchburyicondition and 46 days following removal, invertebrateabundances approached pre-removal levels at eachsite. Ulva spp. removal also caused short-termincreases in dissolved oxygen and temperature of porewater. The greatest visual impact of removing Ulvaspp. was to sediments in McCormacks Bay fromtrampling. Removal by mechanical broom was effectiveand had low impact on benthic invertebrates andphysico-chemical variables.
Autoren-Porträt von Gerry Alvarez-Murphy
Alvarez-Murphy GerryBorn in Scotland Gerry moved to New Zealand in 1989 and enrolledat The University of Canterbury in 2000. He graduated in 2007with a Master of Science in Zoology with 1st Class Honours.Currently Gerry lives with his wife Emmy in Christchurch NewZealand. They are expecting their first baby "Kyle" in January 2009.
Bibliographische Angaben
- Autor: Gerry Alvarez-Murphy
- 2008, 144 Seiten, Maße: 22 cm, Kartoniert (TB), Englisch
- Verlag: VDM Verlag Dr. Müller e.K.
- ISBN-10: 3639090675
- ISBN-13: 9783639090673
Sprache:
Englisch
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