Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 10 of 10 for “"Ecklonia radiata"”.
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Effects of turbidity on the kelp Ecklonia radiata
… productivity and persistence of a subtidal kelp, Ecklonia radiata. Results from field studies showed that light was a primary driver of the morphology, photoacclimation response, distribution, and productivity of E. radiata in the Hauraki Gulf. Photosynthetic acclimation to low light was indicated …
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Modelling distribution and associated environmental preferences of South African kelps and their close relatives
… species that are investigated in this study are Ecklonia cava, Ecklonia maxima, Ecklonia radiata, Laminaria pallida and Laminaria ochroleuca. Ecklonia maxima, E. radiata and L. pallida are dominant South African kelps, therefore studying these species provides information about their …
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How reliable is morphological species delimitation in kelp? : a study of two closely related South African Ecklonia species
Ecklonia maxima and Ecklonia radiata are both kelp bed forming macroalgae along the South African coast, and the latter is also found in considerable abundance in Australia and New Zealand. Genetically they exist as two distinct species and can usually be differentiated morphologically, especially …
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Climate change impacts on macro and micro scale interactions between a tropical herbivore and temperate kelp forests
… climate change stressors on the dominant kelp, Ecklonia radiata, by investigating the complex interplay of kelp-herbivore-microbe interactions. Firstly, I investigated the effects of ocean warming and MHWs on the kelp microbiome and on kelp susceptibility to herbivory. I aimed to understand if …
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Herbivory by Parma mccullochi (Pomacentridae) : its role as an ecosystem engineer in temperate algal-dominated reefs
… were characterised by the brown algae Ecklonia radiata and Sargassum spp., the foliose red alga Rhodimenia sonderi and the coralline red alga Amphiroa anceps. Total algal biomass was significantly lower (P = 0.0126) while species richness was higher (P = 0.0114) inside compared to …
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Predicting the impact of future climate on ecologically important macroalgae
… species of ecologically important macroalgae (Ecklonia radiata, Sargassum linearifolium and Laurencia brongniartii) were subjected to elevated temperature and increased pCO2 conditions and observed for alterations in algae physiology and chemical production, in terms of growth, toughness, …
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Biomarkers (lipids, fatty acids and stable isotopes) to examine diet of the sea urchin Evechinus chloroticus.
… New Zealand, revealing a high contribution from Ecklonia radiata to E. chloroticus diets, but also a contribution from Carpophyllum plumosum in the Hauraki Gulf. The use of lipid and fatty acid composition of E. chloroticus gonads collected from three locations within the Hauraki Gulf revealed a …
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Sources and supply of kelp detritus : quantifying mechanisms of production
… and mechanisms of kelp detritus production, for Ecklonia radiata, the dominant kelp species in temperate Australia. Most of the work was conducted in Marmion Lagoon located 20 km North of Perth, south-western Western Australia, a region strongly influenced by oceanic swell and winter storms. The …
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Dynamics of baseline stable isotopes within a temperate coastal ecosystem: Relationships and projections using physical and biogeochemical factors
… patterns for the δ13C and δ15N in the kelp Ecklonia radiata, the δ15N in the calcareous red alga Amphiroa anceps, and the δ13C in the ascidian Herdmania momus and the bivalve Septifer bilocularis, were influenced by variation at replicates (10s of m) and sites (1s of km) over regions (10s of …
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Distributional relationships among subtidal algae, sea urchins and reef fish in northeastern New Zealand
… conjunction with the ubiquitous laminarian alga, Ecklonia radiata. Following the discovery of this new algal component to exposed rocky reefs, a more detailed study of its population characteristics was initiated. The population size structure of C. flexuosum on coralline flat areas was markedly …