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Viac informácií o knihe Ecological Effects of Removing Ulva spp. from Avon-Heathcote Estuary

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Macroalgal blooms are increasing world-wide and have§negative effects on benthic invertebrates and§sediments. These include loss of species diversity§and development of hostile sediment environments.§This book considers ecological effects of Ulva spp.,§and its mechanical removal on benthic invertebrates§and sediments in Avon-Heathcote Estuary, New Zealand.§ Experimental removal of Ulva spp. was conducted by§mechanical broom at two sites; an open, exposed§central sand flat, and McCormacks Bay, a shallow,§sheltered mud flat. Removing Ulva spp. had several§immediate effects these included a significant§decrease in abundance of mobile epifauna and an§increase in abundance of infauna. There was no effect§of Ulva spp. removal on Austrovenus stutchburyi§condition and 46 days following removal, invertebrate§abundances approached pre-removal levels at each§site. Ulva spp. removal also caused short-term§increases in dissolved oxygen and temperature of pore§water. The greatest visual impact of removing Ulva§spp. was to sediments in McCormacks Bay from§trampling. Removal by mechanical broom was effective§and had low impact on benthic invertebrates and§physico-chemical variables.

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Zaradenie knihy Knihy po anglicky Mathematics & science Biology, life sciences Hydrobiology

• Celý názov: Ecological Effects of Removing Ulva spp. from Avon-Heathcote Estuary
• Autor: Gerry Alvarez-Murphy
• Jazyk: Angličtina
• Väzba: Brožovaná
• Počet strán: 148
• EAN: 9783639090673
• ISBN: 3639090675
• ID: 06818171
• Nakladateľ: VDM Verlag Dr. Mueller E.K.
• Hmotnosť: 209 g
• Rozmery: 229 × 152 × 8 mm
• Dátum vydania: 06. October 2008

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