Reference Type: Journal Article Record Number: 113 Author
Notes: FLA Special Papers 00029122 American Botanical Society Copyright 1964 Botanical Society of America URL
Download 1.4 Mb.
|
Notes: FLA Special Papers 00029122 American Botanical Society Copyright 1964 Botanical Society of America
00243590
American Society of Limnology and Oceanography Copyright 1964 American Society of Limnology and Oceanography URL: http://links.jstor.org/sici?sici=0024-3590%28196410%299%3A4%3C530%3ANFITWL%3E2.0.CO%3B2-W Reference Type: Journal Article Record Number: 287 Author: Fitzgerald, George P. Year: 1964 Title: The effect of algae on B.O.D. measurements Journal: Journal - Water Pollution Control Federation Volume: 36 Issue: 12 Pages: 1524-42 Accession Number: AN 1965:42634 Keywords: Algae (biochem. O demand detn. and); Biochemical oxygen demand (detn. of, algae and) Abstract: A study is reported on measurement of B.O.D. on several species of algae alone and in assocn. with bacteria under 5 days of incubation in the dark and at a temp. of 20 Deg. The object was to det. if algae have an effect on B.O.D. measurements under standard conditions. The species studied were: Chlorella pyrenoidosa, Microcystis aeruginosa, Scenedesmus dimorpha, Nostoc muscorum, and Gloeotrichia echinulata. Rate of growth of Chlorella in different media was followed. There appeared to be no difference in the activity of Chlorella in the B.O.D. test whether the original culture was bacteria-free or contaminated with sewage bacteria. B.O.D. of autoclaved or freeze-dried Chlorella was approx. 4-fold that of living cells. No consistent relation was obtained between the amt. of O used in the B.O.D. test and the no. of viable cells measured by diln. and plating of samples after 5 days of incubation. The av. and range of values obtained in the B.O.D. test with Chlorella from different culture media are presented in tabular form. The effects of Scenedesmus and Nostoc on the B.O.D. test were similar to Chlorella. Microcystis was remarkably similar to Chlorella in its behavior. 18 references. [on SciFinder (R)] Notes: CAN 62:42634 23 Sewage and Wastes Univ. of Wisconsin,Madison Journal
0043-1303 written in English. Reference Type: Journal Article Record Number: 288 Author: Zehnder, Alfons Year: 1963 Title: Culturing experiments with Gloeotrichia echinulata Journal: Schweizerische Zeitschrift fuer Hydrologie Volume: 25 Issue: 1 Pages: 65-83 Accession Number: AN 1964:47368 Keywords: Gloeotrichia echinulata (culturing of) Abstract: The effects of different trace element mixts., addn. of soil ext., Fe sources, and medium pH on the growth of this blue-green alga are reported. Medium No. 11 (CA 55, 5660c) contg. 1-2 mg. chelated Fe/l. with a pH of 8-9 showed the optimal conditions The alga could apparently assimilate atm. N as a N source for growth. 26 refs. [on SciFinder (R)] Notes: CAN 60:47368 62 Microbial Biochemistry Natl. Res. Lab. Canada,Ottawa Journal
0036-7842 language unavailable. Reference Type: Journal Article Record Number: 73 Author: Webber, Edgar E. Year: 1963 Title: The Ecology of Some Attached Algae in Worcester County, Massachusetts Journal: American Midland Naturalist Volume: 70 Issue: 1 Pages: 175-186 Date: Jul. Abstract: The algal floras of 11 ecologically divergent stations in Worcester Co., Massachusetts, were examined from June to mid-September, 1960. Water chemistry, including alkalinity, total hardness calcium, nitrates, and pH, was assayed at these locations. Most stations represented soft water environments. Batrachospermum, Draparnaldia, and Phormidium were characteristic of rapidly flowing water. Tribonema, Microspora, Ulothrix, Stigeoclonium, and members of the Zygnemataceae occur in gently flowing water. Occurring mainly in standing water were Oedogonium, Bulbochaete, and desmids. Warm water alkaline environments with high levels of calcium and hardness favored blue-greens, except Phormidium. In some cases blooms resulted from this alkaline condition. Desmids occurred principally in permanent, slightly acid ponds. In some instances it was possible to correlate appearance and growth of a particular species with physical and chemical factors of its environment. Notes: FLA 00030031
University of Notre Dame Copyright 1963 The University of Notre Dame URL: http://links.jstor.org/sici?sici=0003-0031%28196307%2970%3A1%3C175%3ATEOSAA%3E2.0.CO%3B2-B Reference Type: Journal Article Record Number: 74 Author: Small, Lawrence F. Year: 1963 Title: Effect of Wind on the Distribution of Chlorophyll a in Clear Lake, Iowa Journal: Limnology and Oceanography Volume: 8 Issue: 4 Pages: 426-432 Date: Oct. Abstract: Distribution of surface chlorophyll a in a shallow, eutrophic lake in north-central Iowa was adequately predicted by an effective chlorophyll-displacement index (EDI) and a displacement vector (DV), which were dependent upon velocity, duration, and directional stability of wind prior to chlorophyll collection dates. Four general wind conditions, determined by the magnitudes of EDI and DV, are considered, and four general conditions of chlorophyll movement are postulated as a direct result of the wind conditions. Notes: FLA 00243590
American Society of Limnology and Oceanography Copyright 1963 American Society of Limnology and Oceanography URL: http://links.jstor.org/sici?sici=0024-3590%28196310%298%3A4%3C426%3AEOWOTD%3E2.0.CO%3B2-5 Reference Type: Journal Article Record Number: 289 Author: Hassall, Kenneth A. Year: 1963 Title: Uptake of copper and its physiological effects on Chlorella vulgaris Journal: Physiologia Plantarum Volume: 16 Issue: 2 Pages: 323-32 Accession Number: AN 1964:47366 Keywords: Chlorella vulgaris (Cu absorption by and physiol. effects on); Gloeotrichia echinulata (culturing of) Abstract: cf. CA 56, 12083c. Although Cu, Hg and Ag, low in the electrochem. series, were highly toxic both to growth and respiration, Cu was unique in that it was highly toxic to cells under anaerobic conditions, but seldom reduced respiration for many hrs. in aerated vessels. This could not be explained by ease of uptake in presence or absence of air. Scalded cells absorbed Cu very rapidly, but the total was the same as in cells killed by Cu. Cells supplied with glucose grew in higher concns. of Cu than those relying on photosynthesis. [on SciFinder (R)] Notes: CAN 60:47366 62 Microbial Biochemistry Univ. Reading,UK. Journal
0031-9317 language unavailable. 7440-50-8 (Copper) (absorption and physiol. effects on Chlorella vulgaris)
00030031
University of Notre Dame Copyright 1963 The University of Notre Dame URL: http://links.jstor.org/sici?sici=0003-0031%28196301%2969%3A1%3C127%3ANOTAFO%3E2.0.CO%3B2-E Reference Type: Journal Article Record Number: 290 Author: Gorham, P. R. Year: 1962 Title: Laboratory studies on the toxins produced by waterblooms of blue-green algae Journal: Am. J. Publ. Health Volume: 52 Issue: 12 Pages: 2100-2105 Accession Number: 4631610 Keywords: Algal blooms; Biological poisons; Toxicity; Bioassays; Toxicity tolerance; Chemical composition; Anabaena flos-aquae; Anabaena limnetica; Anabaena spiroides; Anabaena scherematievi; Anacystis cyanea f. minor; Anacystis nidulans; Coelosphaerium kuetzingianum; Gloeotrichia echinulata; Microcystis aeruginosa; Nodularia spumigena Freshwater Q1 01206 Physiology, biochemistry, biophysics Abstract: Algal blooms vary in toxicity because certain strains of certain species are capable of producing toxins. The production of and release of bacterial toxins may modify or confuse the symptoms produced by the algal toxin. At least 3 types of toxins are now known to be involved in algal poisonings and can be distinguished by the symptoms they produce. Microcystis FDF (Fast Death Factor) and Anabaena VFDF (Very Fast Death Factor) appear to be of algal origin. There appear to be several slow death factors that are bacterial in origin. FDF has been identified as a probably cyclic polypeptide of moderately low molecular weight. VFDF and bacterial toxins have not been established yet. Microcystis is more or less toxic to a variety of animals with the exception of the domestic duck which are resistant to massive doses of Microcystis cells.(DBO). Notes: 1962. English
Journal Article; Numerical data Reference Type: Journal Article Record Number: 39 Author: Schneider, K. C.; Bradbeer, Clive; Singh, R. N.; Wang, Li Chuan; Wilson, P. W.; Burris, R. H. Year: 1960 Title: Nitrogen Fixation by Cell-Free Preparations from Microorganisms Journal: Proceedings of the National Academy of Sciences of the United States of America Volume: 46 Issue: 5 Pages: 726-733 Date: May 15 Keywords: Microbiology Notes: FLA 00278424
National Academy of Sciences of the United States of America Copyright 1960 National Academy of Sciences URL: http://links.jstor.org/sici?sici=0027-8424%2819600515%2946%3A5%3C726%3ANFBCPF%3E2.0.CO%3B2-9 Reference Type: Journal Article Record Number: 71 Author: Castenholz, Richard W. Year: 1960 Title: Seasonal Changes in the Attached Algae of Freshwater and Saline Lakes in the Lower Grand Coulee, Washington Journal: Limnology and Oceanography Volume: 5 Issue: 1 Pages: 1-28 Date: Jan. Abstract: A two year investigation of two freshwater alkaline lakes and two saline lakes in the Lower Grand Coulee has provided a quantitative and qualitative record of many of the seasonal changes occurring in the non-planktonic algae. A glass plate method satisfactorily recorded quantitative changes in the attached algae. The plates (28 by 28 cm) were submerged for 2 to 4 weeks at various depths. Dry weight and ash-free dry weight of the predominantly algal attachment materials on plates were determined, and the ash-free weight was expressed as a production rate. The ash from freshwater lakes was composed normally of intact diatom frustules. The ash from saline lakes was also diatomaceous, but the weakly silicified frustules were deformed during ashing. Proportional counts of the various species in freshwater lakes were made using the ash. The evaluation of relative dominance was based on the mathematical product of the cell count and a calculated volume factor for each species. The glass-plate production technique was examined at some length and it was concluded that a 2-week submergence period was most satisfactory, that glass was not unduly selective, that a horizontal position was satisfactory, and that the method was best suited to the freshwater lakes. In freshwater lakes (200-450 ppm T.D.S.) results clearly show a bimodal production curve with the peak generally higher in the spring than in the fall. Lowest production invariably occurred in late summer. High production values in the spring were commonly near or above $500 mg/m^2/day$. Comparison of the results of two years shows sizable differences in total production at comparable times of year, but the seasonal distribution of species followed the same general pattern both years. Cymbella affinis, C. cistula, C. mexicana, Diatoma elongatum, Fragilaria vaucheriae, Gomphonema eriense, Nitzchia spp., Synedra acus, and S. ulna were characteristic spring dominants in the freshwater lakes. These diatoms were replaced in summer mainly by Epithemia sorex, E. turgida, and Rhopalodia gibba. A few "spring" species were common in one lake in summer but only at greater depths. The summer period was also characterized by a great abundance of Cladophora, Spirogyra, Oscillatoria, and members of the Chlorococcales. The dominant summer diatoms usually remained through the fall and were joined at that time by several of the "spring" species. In winter diatom production was generally low, but Ulothrix clothed rocks in Falls Lake even under an ice cover. Nine per cent of the 275 algal taxa collected in the Lower Grand Coulee occurred in both freshwater and saline lakes. Although the saline lakes were not rich in numbers of species, production rates were similar to and even higher than production rates in the freshwater lakes. In the two saline lakes (Lake Lenore-10,000 ppm and Soap Lake-25,000 ppm) there was a pronounced diatom pulse in the fall. Production rate values as high as $550 mg/m^2/day$ were achieved during this season. In Soap Lake a winter pulse reached a value of $1000 mg/m^2/day$ which was followed by a distinct spring pulse, both absent in Lake Lenore. The dominants on glass plates in both lakes were sfecies of Nitzschia and Amphora. Blue-green algae were also common and were conspicous for their lack of seasonality. Notes: FLA 00243590
American Society of Limnology and Oceanography latex
Copyright 1960 American Society of Limnology and Oceanography URL: http://links.jstor.org/sici?sici=0024-3590%28196001%295%3A1%3C1%3ASCITAA%3E2.0.CO%3B2-6 Reference Type: Journal Article Record Number: 70 Author: Sexton, Owen J. Year: 1959 Title: Spatial and Temporal Movements of a Population of the Painted Turtle, Chrysemys picta marginata (Agassiz) Journal: Ecological Monographs Volume: 29 Issue: 2 Pages: 113-140 Date: Apr. Notes: FLA 00129615
The Duke University Press EN
URL: http://links.jstor.org/sici?sici=0012-9615%28195904%2929%3A2%3C113%3ASATMOA%3E2.0.CO%3B2-B Reference Type: Journal Article Record Number: 69 Author: Talling, J. F. Year: 1957 Title: Diurnal Changes of Stratification and Photosynthesis in some Tropical African Waters Journal: Proceedings of the Royal Society of London. Series B, Biological Sciences Volume: 147 Issue: 926 Pages: 57-83 Date: Aug. 13 Abstract: A description is given of diurnal changes, due to the photosynthesis of phytoplankton, in three shallow African waters. Their vertical distribution was largely controlled by changes of thermal stratification; examples corresponding to different degrees of the latter are illustrated from four series of observations. Thermal stratification was generally intermittent, with marked stratification during the day, ended by isothermal mixing at night. An effect of these changes upon the distribution of a blue-green alga, Anabaena, and its photosynthetic activity, is also illustrated. Experimental determinations of the rates of photosynthesis (as milligrams of oxygen produced per unit volume of water, or of algal cells, per hour), and their distribution with time and depth, were obtained using the classic method of suspended light and dark bottles. Photosynthetic behaviour generally resembled that found in temperate waters, but maximum rates of photosynthesis calculated per unit volume of algal cells were unusually high. The preceding observations are used to calculate rates of photosynthesis below unit area of water surface, both from the experimental results and from the diurnal variation of oxygen content in the open water. In the latter case the observed increase of oxygen content in a water column during daytime is corrected for sources of loss, due to respiration and exchange with the atmosphere, using a mean rate of oxygen depletion measured during the night. Although the method is subject to many sources of error, which are discussed, the conclusion is reached that it can provide useful, if often rough, estimates of the rate of primary production. The experimental estimates were calculated both for the experimental periods, and for longer daily periods, using some general equations previously proposed. The calculations from diurnal changes and from experimental data are in agreement concerning the order of magnitude of production, but close conformity was obtained for only one series of observations. The areal values of production estimated from diurnal changes lay in a limited range of 4 to 11 g oxygen (equivalent to approximately 1.5 to 4 g carbon) $\text{m}^{-2}$ $\text{day}^{-1}$, despite considerable variation in individual factors such as population density and underwater light penetration. These values are similar to other estimates for phytoplankton in very productive waters. Notes: FLA 00804649
The Royal Society latex
Copyright 1957 The Royal Society URL: http://links.jstor.org/sici?sici=0080-4649%2819570813%29147%3A926%3C57%3ADCOSAP%3E2.0.CO%3B2-W Reference Type: Journal Article Record Number: 68 Author: Thompson, R. H. Year: 1956 Title: Schizochlamys gelatinosa and Placosphaera opaca Journal: American Journal of Botany Volume: 43 Issue: 9 Pages: 665-672 Date: Nov. Abstract: The life history of Schizochlamys gelatinosa A. Braun is shown to be highly complicated with environmentally induced phases. The strict life cycle consists of four stages; stalked aplanospores resulting from a germinated zygospore; a stage of growth and cell division from such spores; an intermediate-pseudociliate stage; and, the Schizochlamys stage in which biflagellate gametes are produced. Both the intermediate and the Schizochlamys stages reproduce asexually by quadriflagellate zoospores, as well as increase colonial size by cell division. The environmentally induced phases are: a stalked pseudociliate phase developing from a stalked aplanospore; a phase of several generations of free aplanosporic reproduction developing out of the growth and division stage; a Urococcus_like phase developing out of the intermediate-pseudociliate stage; and, an akinete phase developing out of the Schizochlamys stage. In addition a growing "akinete" phase in which the cell increases several diameters in size may develop out of any one of the first three stages of the life cycle. The free aplanosporic phase was described by Dangeard in 1889 as Placosphaera opaca. It is shown that Placosphaera velebitica Pevalek (1924) and Coelastrella striolata Chodat (1921) are to be considered identical with P. opaca and consequently with the latter are reduced to synonymy with Schizochlamys. Notes: FLA 00029122
American Botanical Society Copyright 1956 Botanical Society of America URL: http://links.jstor.org/sici?sici=0002-9122%28195611%2943%3A9%3C665%3ASGAPO%3E2.0.CO%3B2-U Reference Type: Journal Article Record Number: 67 Author: Schumacher, George J. Year: 1956 Title: A Qualitative and Quantitative Study of the Plankton Algae in Southwestern Georgia Journal: American Midland Naturalist Volume: 56 Issue: 1 Pages: 88-115 Date: Jul. Abstract: The purpose of this survey was to present a qualitative and quantitative study of the plankton algae of Southwestern Georgia. The qualitative collections were limited only by the boundaries of the eleven counties shown in fig. 1, whereas the quantitative samples were restricted to fifteen ponds. Fifteen months were spent in the field gathering the necessary material. A total of 399 species and varieties, 93 genera and 31 families was determined. 207 species represent new records for the state of Georgia and 85 species are reported for the first time for the Southeastern Coastal Plain. Some of the more noteworthy finds are Chrysopyxis bipes, Coelastrum chodati, Dinobryon divergens, Peridinium limbatum, Phymatodocis nordstedtiana and Pleurotaenium spinulosum. The genera represented by the largest number of species are as follows: Cosmarium, 43; Staurastrum, 41; Closterium, 29; Euastrum, 23; Micrasterias, 23; Scenedesmus, 15. The families with the largest number of species are the following: Desmidiaceae, 211; Oocystaceae, 34; Chroococcaceae, 23; Scenedesmaceae, 18; Oscillatoriaceae, 15. Babcock Pond had the richest flora with 114 species of plankton algae. Those ponds approaching this number are Big Cypress, 111; Cane Water, 93; Putney, 89; Mossy, 88 and Porter, 88. The two mill ponds, Sheffield's and Ivy's, had the lowest number with 29 and 32 respectively. The qualitative findings are presented in an annotated list, while the quantitative results are recorded graphically by months for each pond. Blooms of Dinobryon divergens and Microcystis aeruginosa were noted during the winter and summer months respectively. An attempt was made to classify the ponds on a basis of the number and variety of algae found therein, with particular emphasis being placed on the Desmidiaceae. This resulted in the establishment of three groups. Group one was characterized by having limited quantitative numbers of algae, a rather even seasonal distribution and a wide variety of species, especially among the desmids. The second group likewise possessed a large variety of desmid species but had a phyto-plankton population which was generally rich in numbers and exhibiting marked seasonal pulsations. The final group has the intrinsic property of being desmid-poor while having relatively high numbers of diatoms and blue-greens. Members of group three had clear cool waters and sandy bottoms whereas those ponds in groups one and two had warm dark waters and mucky organic bottoms. 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:
|