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Mean absorption characteristics of UV-absorbing compounds (OD at 330 nm fresh weight (FW)) of Ceramium sp., Callithamnion gaudichaudii, Corallina officinalis, Porphyra columbina, Enteromorpha linza, Dictyota sp., and Ulva rigida exposed to UVR as a function of chl a concentration (OD(665 nm) FW). (After Helbling et al., 2002.) 6. Algae as Food for Other Organisms Macroalgae, as well as the environment where they grow, offer shelter and food for diverse organisms, mainly invertebrates....
Biomass
The A. nodosum resource has been divided into six geographic areas along the Nova Scotia and southern New Brunswick shores (Fig. 3). Acadian Seaplants Limited (ASL), a Canadian seaweed processing company, has been granted 11 leases in NS in the most productive rockweed areas, and the whole of the southern NB coastline. The area corresponds to 76 of the total resource for the region. For management purposes, the company has divided its leases into 340 harvesting sectors (Ugarte and Sharp, 2001)...
References
Andreakis, N., Procaccini, G., Maggs, C. and Kooistra, W.H.C.F. (2007) Phylogeography of the invasive seaweed Asparagopsis (Bonnemaisoniales, Rhodophyta) reveals cryptic diversity. Mol. Ecol. 16 2285-2299. Barnett, T.P., Pierce, D.W. and Schnur, R. (2001) Detection of anthropogenic climate change in the world's ocean. Science 292 270-274. Bellan, G., Bourcier, M., Salen-Picard, C., Arnoux, A. and Casserley, S. (1999) Benthic ecosystem changes associated with wastewater treatment at Marseille...
Microalgae as Second Generation Energy Plants
The use of microalgae for the production of biofuels has many ecological and economical advantages. First of all, microalgae show a much higher efficiency in converting solar energy to biomass. From the biomass of corn grown on one hectare, about 2,000 m3 biogas (methane) can be obtained however, biomass of microalgae grown on the equivalent area produces about 200,000 m3 (Solarbiofuels 2008). In microalgal biomass, the percentage of compounds suitable for the production of biofuels (e.g.,...
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LEON RECANATI INSTITUTE FOR MARITIME STUDIES (RIMS), UNIVERSITY OF HAIFA, HAIFA 31905, ISRAEL. Biodata of Michal Lichter, Dov Zviely, Micha Klein, and Dorit Sivan, authors of Sea-Level Changes in the Mediterranean Past, Present and Future - A Review Dr. Michal Lichter is currently a Postdoctoral Researcher in the Coasts at Risk and Sea-Level Rise (CRSLR) Research Group of the Future Ocean Excellence Cluster, based at the Institute of Geography, Christian Albrechts University, Kiel, Germany. She...
Biofuels
Biofuels (biogas, bioalcohol, biodiesel) are made from plant biomass, and are more or less carbon neutral, since in burning they do not increase the overall CO2 content of the atmosphere but set free just the amount of CO2 that was fixed before in photosynthesis of the plant (Schiermeier et al., 2008). Thus, in recent years, plant biomass has gained growing importance as an alternative energy source. Main current sources of bioalcohol (mostly bioethanol) are sugars of sugarcane and starch of...
Email rugarteacadianca
Israel et al. (eds.), Seaweeds and their Role in Globally Changing Environments, Cellular Origin, Life in Extreme Habitats and Astrobiology 15, 69-90 DOI 10.1007 978-90-481-8569-6_5, Springer Science+Business Media B.V. 2010 Dr. James S. Craigie currently is Researcher Emeritus, National Research Council of Canada, and Science Advisor for Acadian Seaplants Limited. He obtained his Ph.D. in 1959 from Queen's University, Kingston, ON, Canada. Additional research and studies were continued at...
Biotechnological potential of seaweeds
Intensive Sea Weed Aquaculture A Potent Solution Against Global Warming Turan, G. and Neori, The Future is Green On the Biotechnological Potential of Green Algae Reisser, The Potential of Caulerpa spp. for Biotechnological and Pharmacological Applications Cavas, L. and Pohnert, Ecology, Science, and Religion Klostermaier, Nature and Resource Conservation as Value-Assessment Reflections on Theology and Ethics Roth, Global Warming According to Jewish Law Three Circles of Reference Glicksberg,...
Caulerpa Species as Adsorbents for Pollutants
The high adsorption properties of preparations from Caulerpa species on dyes and heavy metals have recently attracted increasing interest. Caulerpa species are proposed as low-cost adsorbents in these studies. Several physicochemical characterisations such as determination of adsorption kinetics, equilibrium constants and thermodynamics of the adsorption process have been reported. Generally, pseudo-first-order and pseudo-second-order kinetic models are used to express adsorption kinetics....
Effects of Temperature Increases
Temperature is probably the most dominant rate-determining factor in biology ranging from subcellular to community-level processes, with direct and indirect effects on organisms' physiology, ontogeny, trophic interactions, biodiversity, phenology, and biogeography. Increases in temperature due to climate change have the potential to impact most marine ecosystems, directly through the impact on species physiology (growth, reproduction, etc.) or indirectly through impacts on ocean dynamics...
Distribution And Niche Modeling
For centuries, biogeographical patterns have been studied in a descriptive way by delineating provinces and regions based on the presence of observed species and degrees of endemism, rather than quantifying and explaining these patterns based on environmental variables (Adey and Steneck, 2001). The question as to which environmental variables best explain seaweed species' niches and distributions is, however, one of the most important in global change research. Biogeographical models based on...
Other Activities of Caulerpa Preparations
The non-specific agglutination of human red blood cells (haemagglutinating activity) was reported in extracts of Caulerpa cupressoides by Ainouz and Sam-paio (1991). Thangam and Kathiresan (1991a) reported the mosquito larvicidal effect of C. scalpelliformis extracts against Aedes aegypti with an LC50 value of 54 mg L. The same researchers also reported the synergetic effect of C. scalpelliformis extract with the synthetic insecticide 1,2,3,4,5,6-hexachlorocyclohexane (BHC) (Thangam and...
Principles for Removing Modern Nuisances
Following are several applicable principles Serious ecological nuisances will be removed from the town up to a distance from which they will no longer cause harm. Town planning should include the allocation of industrial areas located at a distance from town, to ensure that industrially related activities will not take place within city bounds.30 Cottage industry can 28 Nachmanides (Spain, thirteenth century), in his commentary on Deuteronomy 22 6, acknowledged the possibility that man could...
Ecoactivism Ecology as Religion
Greenpeace is probably the world's best-known association of eco-activists. What is less known is its religious background Robert Hunter, its founder intended his movement to represent ecology as religion, describing its ethics as one of personal responsibility and confrontation. Hunter also believed that whales are the highest developed living beings on earth - higher than humans this is the background to the highly publicized Save the Whales campaigns. The members of Greenpeace also believe...
The Dominant Secondary Metabolite of Caulerpa Genus Caulerpenyne CYN
Caulerpa spp. contain several linear terpenoid secondary metabolites and especially caulerpenyne (CYN, Fig. 1) has been associated with anti-cancer, anti-proliferative, anti-microbial, anti-herpetic and anti-viral properties in many reports. Both invasive Caulerpa spp. contain the dominant sesquiterpenoid metabolite CYN, which can be found in high concentrations up to 1.3 of the dry weight of the alga (Amade and Lem e, 1998 Dumay et al., 2002). CYN contents of invasive and non-invasive Caulerpa...
Discovering Ecological Wisdom in Ancient Texts
Stung by White's and Toynbee's criticism, the monotheists began to reread and reinterpret their scriptures from an ecological perspective. They discovered a great many texts that appear to provide support for contemporary ecological thinking. A recent edition of a popular English Bible translation marks all texts that refer to nature in green - all in all about a thousand. Rabbi Sharon Joseph Levi sees an ecological command in the Talmud text God created Adam and led Adam through the trees in...
Biodata of Ugarte RA Craigie JS and Critchley AT authors of Fucoid Flora of the Rocky Intertidal of the Canadian
Ugarte graduated as Marine Biologist from the Universidad de Concepci n in Chile in 1982. He worked on the establishment of Gracilaria farms in southern Chile until 1984 and later joined the laboratory of Dr. Bernab Santelices at the Universidad Cat lica de Chile in Santiago, where he worked on applied phycology until 1988. Later that year, he traveled to Canada for a training program on resource management with the Department of Fisheries and Oceans (DFO), under the direction of...
Kappaphycus Three Types
Israel et al. (eds.), Seaweeds and their Role in Globally Changing Environments, Cellular Origin, Life in Extreme Habitats and Astrobiology 15, 251-283 DOI 10.1007 978-90-481-8569-6_15, Springer Science+Business Media B.V. 2010 Flower E. Msuya is currently working as a Senior Researcher at the Institute of Marine Sciences of the University of Dar es Salaam in Zanzibar, Tanzania. She obtained her Ph.D. from Tel Aviv University, Israel, in 2004 and continued her research at the Institute of...
