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Notes: CAN 129:71739 61-1
Water Inst. Limnology,Uppsala Univ.,Uppsala,Swed. Journal 0071-1128 written in English. 479-61-8 (Chlorophyll a); 9001-78-9; 14265-44-2 (Phosphate) Role: BSU (Biological study, unclassified), GOC (Geological or astronomical occurrence), BIOL (Biological study), OCCU (Occurrence) (microbial dynamics and phosphorus turnover in Lake Erken (Sweden) in relation to); 7723-14-0 (Phosphorus) Role: BAC (Biological activity or effector, except adverse), BSU (Biological study, unclassified), GOC (Geological or astronomical occurrence), BIOL (Biological study), OCCU (Occurrence) (nutrient; microbial dynamics and phosphorus turnover in Lake Erken (Sweden) Reference Type: Journal Article Record Number: 157 Author: Sonnichsen, Jennifer D.; Jacoby, Jean; Welch, Eugene B. Year: 1997 Title: Response of cyanobacterial migration to alum treatment in Green Lake Journal: Archiv fuer Hydrobiologie Volume: 140 Issue: 3 Pages: 373-392 Accession Number: AN 1997:754845 Keywords: Lake sediments (eutrophic lake sediments; effect of alum treatment on P release from); Lakes (eutrophic; response of cyanobacterial migration to alum treatment in eutrophic Green Lake (Seattle, USA); Coelosphaerium naegelianum; Cyanobacteria (response of cyanobacterial migration to alum treatment in eutrophic Green Lake (Seattle, USA) alum treatment eutrophic lake cyanobacterium migration; cyanobacterium migration alum Green Lake USA; phosphorous release lake sediment alum treatment Abstract: The response of sediment-to-water migration of cyanobacteria to Al sulfate (buffered with Na aluminate) treatment was studied in shallow Green Lake (Seattle, USA). A comparison of results from 2 summers before treatment and 3 summers after treatment indicates that migration of cyanobacteria was unaffected. Migration of Gloeotrichia echinulata continued to be highly variable from year-to-year which made isolation of the effects of treatment difficult. Migration of other species of cyanobacteria, particularly Coelosphaerium naegelianum, increased after treatment. The colonial P content of migrating Gloeotrichia echinulata was also unaffected by the treatment, indicating that alum did not interfere with P uptake from the sediments. Illumination at the sediment surface did not regulate migration of cyanobacteria under the study conditions. Although alum treatment did not affect the migration of cyanobacteria, sediment P release in anoxic cores was reduced to 1/3 of the pre-treatment rate. [on SciFinder (R)] Notes: CAN 128:26549 61-1
Water Environmental Eng. Sci. Program, Dep. Civil Eng.,Univ. Washington,Seattle,WA,USA. Journal 0003-9136 written in English. 7723-14-0 (Phosphorus) Role: GOC (Geological or astronomical occurrence), PEP (Physical, engineering or chemical process), OCCU (Occurrence), PROC (Process) (effect of alum treatment on P release from eutrophic lake sediments); 1302-42-7 (Sodium aluminate) Role: BAC (Biological activity or effector, except adverse), BSU (Biological study, unclassified), MOA (Modifier or additive use), BIOL (Biological study), USES (Uses) (response of cyanobacterial migration in eutrophic Green Lake (Seattle, USA) to treatment by alum buffered with); 10043-01-3 (Alum) Role: BAC (Biological activity or effector, except adverse), BSU (Biological study, unclassified), BIOL (Biological study) (response of cyanobacterial migration to alum treatment in eutrophic Green Lake (Seattle, USA) Reference Type: Journal Article Record Number: 158 Author: Pitois, S. G.; Jackson, M. H.; Wood, B. J. B. Year: 1997 Title: Summer bloom of Gloeotrichia echinulata and Aphanizomenon flos-aquae and phosphorus levels in Antermony Loch, central Scotland Journal: International Journal of Environmental Health Research Volume: 7 Issue: 2 Pages: 131-140 Accession Number: AN 1997:471997 Keywords: Algae; Aphanizomenon flos-aquae; Gloeotrichia echinulata; Reservoir sediments; Water pollution (summer bloom of Gloeotrichia echinulata and Aphanizomenon flos-aquae and phosphorus levels in Antermony Loch, central Scotland); Nitrates; Nitrites Role: GOC (Geological or astronomical occurrence), POL (Pollutant), OCCU (Occurrence) (summer bloom of Gloeotrichia echinulata and Aphanizomenon flos-aquae and phosphorus levels in Antermony Loch, central Scotland) Gloeotrichia echinulata summer bloom; Aphanizomenon flos aquae summer bloom; bloom Gloeotrichia Aphanizomenon phosphorus Antermony Loch Abstract: Nutrient levels (P and N) were measured in a small reservoir in Scotland between Mar. 1994 and Oct. 1995. Algae species were identified. Dense blooms of Gloeotrichia echinulata have regularly occurred in late summer in the reservoir for many years, but it did not reach bloom proportions during the 1995 summer and seemed to have been replaced by Aphanizomenon. The bloom of the cyanobacterium Gloeotrichia echinulata that occurred in August 1994 was studied in relation to P levels present at the time in the water. Results show that the bloom developed after a slight increase in dissolved inorg. P; while the bloom was developing, particulate inorg. forms of P increased and were then replaced by particulate org. forms when the bloom reached its max. d. All P fractions started to decrease shortly before the bloom collapsed. There did not seem to be any change in the distribution of P between its different fractions, at least during the 1st 24 h after collection when the sample was kept in a refrigerator in the dark. We therefore conclude that Gloeotrichia echinulata was probably responsible for transferring P from the sediments up to the water column in Antermony. [on SciFinder (R)] Notes: CAN 127:126200 61-2
Water Environmental Health Division,University of Strathclyde,Glasgow,UK. Journal 0960-3123 written in English. 7664-41-7 (Ammonia); 7723-14-0 (Phosphorus); 7727-37-9 (Nitrogen) Role: GOC (Geological or astronomical occurrence), POL (Pollutant), OCCU (Occurrence) (summer bloom of Gloeotrichia echinulata and Aphanizomenon flos-aquae and phosphorus levels in Antermony Loch, central Scotland) Reference Type: Journal Article Record Number: 159 Author: Perakis, Steven S.; Welch, Eugene B.; Jacoby, Jean M. Year: 1996 Title: Sediment-to-water blue-green algal recruitment in response to alum and environmental factors Journal: Hydrobiologia Volume: 318 Issue: 3 Pages: 165-177 Accession Number: AN 1996:276391 Keywords: Anabaena; Aphanizomenon; Coelosphaerium; Coelosphaerium naegelianum; Cyanobacteria; Environmental transport; Gloeotrichia echinulata; Microcystis (sediment-to-water blue-green algal recruitment in response to alum and environmental factors); Geological sediments; Waters (lake, sediment-to-water blue-green algal recruitment in response to alum and environmental factors) sediment water blue green algae alum Abstract: The sediment-to-water recruitment of blue-green algae was investigated in a shallow lake following treatment with aluminum sulfate and sodium aluminate to control sediment P release. A comparison of results from 2 summers each before and after treatment indicates that the treatment did not universally impact the recruitment of either sporulating or non-sporulating forms of blue-green algae. Blooms of Anabaena, Aphanizomenon, and Coelosphaerium resulted predominantly from growth in the water column following strong recruitment episodes lasting ?2 wk, while Microcystis populations were relatively insensitive to periodically high inputs from recruitment. The development of planktonic populations of Gloeotrichia echinulata, by contrast, were largely dependent on sustained recruitment in response to adequate light and temp. regimes at the sediment surface. The cellular P content of recruited G. echinulata colonies was unaffected by the accumulation of aluminum floc to the lake sediments. Both G. echinulata and C. naegelianum showed elevated levels of cellular P in newly recruited colonies as compared to planktonic colonies, indicating P transport from the sediments to the water column. Total P translocation by blue-green algae was negligible in the absence of a substantial recruitment of G. echinulata. The recruitment of G. echinulata, and hence the magnitude of P translocation, was therefore more responsive to environmental conditions prevalent at the sediments than to direct effects of the treatment itself. [on SciFinder (R)] Notes: CAN 124:324642 61-1
Water Department Civil Engineering,University Washington,Seattle,WA,USA. Journal 0018-8158 written in English. 10043-01-3 (Aluminum sulfate) Role: BSU (Biological study, unclassified), NUU (Other use, unclassified), BIOL (Biological study), USES (Uses) (sediment-to-water blue-green algal recruitment in response to alum and environmental factors); 7723-14-0 (Phosphorus); 7782-44-7 (Oxygen) Role: GOC (Geological or astronomical occurrence), OCCU (Occurrence) (sediment-to-water blue-green algal recruitment in response to alum and environmental factors); 11138-49-1 (Sodium aluminate) Role: NUU (Other use, unclassified), USES (Uses) (sediment-to-water blue-green algal recruitment in response to alum and environmental factors) Reference Type: Journal Article Record Number: 160 Author: Noges, T.; Haberman, J.; Jaani, A.; Laugaste, R.; Lokk, S.; Maeemets, A.; Noges, P.; Pihu, E.; Starast, H.; Timm, T.; Virro, T. Year: 1996 Title: General description of Lake Peipsi-Pihkva Journal: Hydrobiologia Volume: 338 Issue: 1-3 Pages: 1-9 Date: Nov Accession Number: 4037577 Keywords: limnology; chemical limnology; physicochemical properties; eutrophic lakes; hydrology; vegetation cover; community composition; food webs; lake fisheries; commercial species; primary production; Estonia, Peipsi L.; Europe, Peipus L. Russia, Peipsi-Pihkva L.; Estonia, Peipsi-Pihkva L.; Russia, Pskovskaya, Chudskoye L.; chemical limnology; vegetation cover; community composition; food webs; commercial species; primary production Freshwater Q2 02144 Regional studies, expeditions and data reports; SW 0850 Lakes
Special issue: Biology of Lake Peipsi. English Journal Article Author Address: Inst. Zool. and Botany Estonian Acad. Sci., Vortsjaerv Limnological Stn., EE2454, Rannu, Tartumaa, Estonia Reference Type: Journal Article Record Number: 161 Author: Laugaste, R.; Jastremskij, V. V.; Ott, I. Year: 1996 Title: Phytoplankton of Lake Peipsi-Pihkva: species composition, biomass and seasonal dynamics Journal: Hydrobiologia Volume: 338 Issue: 1-3 Pages: 49-62 Accession Number: AN 1997:100854 Keywords: Aphanizomenon flos-aquae; Aulacoseira granulata; Aulacoseira islandica; Gloeotrichia echinulata; Lake waters; Phytoplankton; Stephanodiscus binderanus (phytoplankton of Lake Peipsi-Pihkva of Estonia and species compn. and biomass and seasonal dynamics) phytoplankton Lake Peipsi Pihkva seasonal dynamic Abstract: With 33 yr of phytoplankton quant. studies carried out, a series of qual. data with a length of over 80 yr is at our disposal. About 500 algal species have been found in plankton by different researchers. In different seasons and years 35 main species (dominants and subdominants) form 68-96% of biomass in L. Pihkva (southern, more eutrophic part) and 60-97% in L. Peipsi (northern, less eutrophic part). L. Lammijarv, connecting the two parts is similar to L. Pihkva in respect to phytoplankton and the trophic state. Diatoms and blue-green algae prevail in biomass, diatoms and green algae, in the species no. The oligo-mesotrophic Aulacoseira islandica (O. Muller) Sim. is characteristic of the cool period; A. granulata (Ehr.) Sim. and Stephanodiscus binderanus (Kutz.) Krieger prevail in summer and autumn, the latter being most abundant in the southern part. Gloeotrichia echinulata (J.S. Smith) P. Richter and Aphanizomenon flos-aquae (L.) Ralfs dominate in summer causing water-bloom. Phytoplankton has mostly three maxima in seasonal dynamics in L. Peipsi and 2 in L. Pihkva. Its av. biomass in spring in different years has fluctuated in the range 5.6-16 and 6-12.7 g/m3, in summer 3.1-14.8 and 5.6-125 (10-20 in most cases); and in autumn 7-16.3 and 5.2-26 in the northern and southern parts, resp. The dominant complex has not changed considerably since 1909; however, the distribution of dominant species in lake parts has become more even in the last decades. Periods of high biomass occurred in the 1st half of the 1960s and 1970s and in 1988-1994, of low biomass in 1981-1987. The 1st coincided, in general, with periods of low water level and high water temp. [on SciFinder (R)] Notes: CAN 126:135272 61-1
Water Institute of Zoology and Botany,Estonian Academy of Sciences, Vortsjarv Limnological Station,Tartumaa,Estonia. Journal 0018-8158 written in English. Reference Type: Journal Article Record Number: 107 Author: Hansson, Lars-Anders Year: 1996 Title: Algal Recruitment from Lake Sediments in Relation to Grazing, Sinking, and Dominance Patterns in the Phytoplankton Community Journal: Limnology and Oceanography Volume: 41 Issue: 6 Pages: 1312-1323 Date: Sep. Abstract: I assessed the importance of algal recruitment from the sediment surface to the water relative to other population variables such as grazing, and sinking. In four low-productivity lake basins, which were stratified throughout the study, 32% of the identified algal taxonomic groups exhibited recruitment, whereas the other 68% spent their entire lives in the pelagic habitat. For most species, recruitment from sediment to water occurred primarily at shallow depths (<8 m) and often increased total phytoplankton abundance by 10-50% per day. Grazing was the main loss process, reducing algal abundance by usually between 10 and 50% per day; sinking rates were usually one order of magnitude lower. Recruitment was highest in shallow water (<10 m deep); when maximum recruitment occurred below the thermocline, no relation was found between recruitment and abundance in the euphotic zone, suggesting that the thermocline functioned as a physical barrier for algal vertical migration. In there of the lakebasins, recruiting algae dominated more often than expected by chance (P <0.05), suggesting a competitive advantage with the adaptation to perform recruitment. Successful recruitment may have a considerable impact on dominance patterns in the phytoplankton community. Notes: FLA 00243590
American Society of Limnology and Oceanography Copyright 1996 American Society of Limnology and Oceanography URL: http://links.jstor.org/sici?sici=0024-3590%28199609%2941%3A6%3C1312%3AARFLSI%3E2.0.CO%3B2-J Reference Type: Book Record Number: 162 Author: Gromov, B. V.; Vepritsky, A. A.; Mamkaeva, K. A.; Voloshko, L. N. Year: 1996 Title: A survey of toxicity of cyanobacterial blooms in Lake Ladoga and adjacent water bodies Series Editor: Simola, H.; Viljanen, M.; Slepukhina, T.; Murthy, R. Number of Pages: 149-151 ISBN: 0018-8158 Accession Number: 3931541 Keywords: algal blooms; biological poisons; community composition; toxicity tests; toxicity; algae; surveys; toxins; Cyanophyta; Oscillatoria; Cyanophyta; Anabaena circinalis; Anabaena flos-aquae; Anabaena lemmermannii; Aphanizomenon flos-aquae; Gloeotrichia pisum; Microcystis aeruginosa; Oscillatoria Russia, Ladoga L.; toxins; biological poisons; toxicity tests; algal blooms; community composition; Anabaena circinalis; Anabaena flos-aquae; Anabaena lemmermannii; Aphanizomenon flos-aquae; Gloeotrichia pisum; Microcystis aeruginosa Freshwater Q5 01524 Public health, medicines, dangerous organisms; D 04627 Algae/lichens; K 03039 Algae; X 24172 Plants; SW 3020 Sources and fate of pollution; K 03009 Algae; SW 3010 Identification of pollutants Abstract: Twentyfive cyanobacterial blooms in Lake Ladoga and adjacent water bodies were studied in the summer of 1990-1992. Toxicity of the water bloom material for mice was detected in 9 cases. The maximal tolerable doses (MTD) of the material extracted from biomass varied within 3-30 mg kg super(-1) mouse body weight; 50% lethal doses (LD sub(50)) were within 45-125 mg kg super(-1). Toxic water blooms were registered in Karelian lakes and in the Neva Bay, Gulf of Finland. Cyanobacterial samples collected on the eastern coast of Lake Ladoga proved to be non-toxic. The species identified in toxic bloom material included Anabaena circinalis, A. flos-aquae, A. lemmermannii, Anabaena sp., Aphanizomenon flos-aquae, Gloeotrichia echinulata, G. pisum, Microcystis aeruginosa and Oscillatoria sp. These data suggest that toxic forms of cyanobacteria are widespread in Karelian lakes belonging to the drainage basin of Lake Ladoga. Notes: 1. Int. Lake Ladoga Symp., St. Petersburg (Russia), 22-26 Nov 1993 Proceedings of the first international lake ladoga symposium: ecological problems of lake ladoga held in st. petersburg, russia, 22-26 november 1993., 1996 Hydrobiologia, vol. 322, no. 1-3 English
Book Monograph; Conference Author Address: Biol. Inst., St. Petersburg Univ., Oranienbaumskoye sch. 2, Stary Peterhof, St. Petersburg 198904, Russia Reference Type: Journal Article Record Number: 46 Author: Goedkoop, Willem; Johnson, Richard K. Year: 1996 Title: Pelagic-Benthic Coupling: Profundal Benthic Community Response to Spring Diatom Deposition in Mesotrophic Lake Erken Journal: Limnology and Oceanography Volume: 41 Issue: 4 Pages: 636-647 Date: Jun. Abstract: Phytodetrital sedimentation, bacterial activity in sediments, and benthic macro- and meiofauna abundance were measured to calculate a carbon budget for pelagic-benthic coupling in Lake Erken. Bacterial activity in surficial sediment was limited by temperature in spring, although a significant correlation with the input of spring-bloom phytodetritus was noted. Population dynamics of benthic meiofauna during a period of increased food availability in spring were highly taxon-specific and closely correlated to feeding behavior. Abundances of ostracods and nematodes rapidly increased when phytodetritus became available in hypolimnetic water and surficial sediment, respectively. Considerable time lags (months) were found between phytodetritus deposition and population development of harpacticoid copepods and chydorids. Carbon budget calculations based on sedimentation data (traps) and surficial sediment C content showed that during spring between 1.1 and 7.2% of deposited phytodetritus is assimilated by benthic meiofauna, whereas the dominant macroinvertebrates, sedentary chironomids, assimilated between 2.4 and 6.0%. On average, between 1.9 and 12.4% of the deposited phytodetritus was mineralized by sediment bacteria. A significant negative correlation was found between abundances of benthic meiofauna and bacteria in the sediment. Chlorophyll a analysis of surficial sediment was a necessary, complementary tool to detect sedimentation that weas not detected by the traditional, cylindric sediment traps. Notes: FLA 00243590
American Society of Limnology and Oceanography latex
Copyright 1996 American Society of Limnology and Oceanography URL: http://links.jstor.org/sici?sici=0024-3590%28199606%2941%3A4%3C636%3APCPBCR%3E2.0.CO%3B2-L Reference Type: Journal Article Record Number: 45 Author: Epp, Gregory T. Year: 1996 Directory: chemistry chemistry -> Summer 2015 Research Opportunities for Chemistry & Biochemistry Undergraduates chemistry -> Application for Summer Undergraduate Research Program nsf research Experiences for Undergraduates (reu) – 2015 Please Print Clearly or Type chemistry -> Application for Summer Undergraduate Research Program nsf research Experiences for Undergraduates (reu) – 2016 Please Print Clearly or Type chemistry -> Summer 2014 Research Opportunities for Chemistry & Biochemistry Undergraduates chemistry -> Summer 2016 Research Opportunities for Chemistry & Biochemistry Undergraduates chemistry -> Cloud Point Extraction Methodology for Separation and Microamounts Determination of Lead chemistry -> Spring Hill College List of Nearby Restaurant Options Atlanta Bread Company chemistry -> Where the heck is Fernando de Noronha? chemistry -> Topics 6 & 16: Kinetics 1 Collision theory and rates of reaction Download 1.4 Mb. Share with your friends:
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