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Showing 1 to 20 of 119 for “"vertical distribution"”.

  1. The vertical distribution of phytoplankton : observations, theory, experiments

    Mellard, Jarad P.2010

    Thesis (Ph. D.)--Michigan State University. Dept. of Plant Biology, Ecology, Evolutionary Biology, and Behavior, 2010

    msu Repository record

  2. The vertical distribution and migration of planktonic rotifers in a hypereutrophic tarn

    Stewart, Lesley J.University of Hull1988

    … detailed data set giving information on the vertical distribution of the rotifer community in relation to the environmental conditions. Seasonal abundance of the rotifers was also noted. Diel studies in 1983 investigated the vertical migration of the community and experimental work in 1984 …

    hull Repository record

  3. SOIL ORGANIC CARBON IN MID-ATLANTIC REGION FOREST SOILS: STOCKS AND VERTICAL DISTRIBUTION

    Colopietro, Daniel John2019

    … Db values were investigated for the subsoil. The vertical distribution of SOC concentration and stocks were evaluated with respect to soil order, physiographic region/landform, drainage class and parent material.

    maryland Repository record

  4. A study of the vertical distribution of upper mesopelagic animals in the Monterey Submarine Canyon, California

    Smith-Beasley, Lisa

    sjsu Repository record

  5. Factors determining growth and vertical distribution of planktonic algae in extremely acidic mining lakes (pH 2.7)

    Bissinger, VeraUniversität Potsdam

    Die vorliegende Dissertation beschäftigt sich mit den Faktoren, die das Wachstum und die Vertikalverteilung von Planktonalgen in extrem sauren Tagebaurestseen (TBS; pH 2-3) beeinflussen. Im exemplarisch untersuchten TBS 111 (pH 2.7; Lausitzer Revier) dominiert die Goldalge Ochromonas sp. in oberen …

    potsdam-diss Repository record

  6. Sensitivity Study on Modification of Vertical Distribution of Strength and Stiffness in Wood Shear Wall Building Models

    Perry, Logan AndrewVirginia Tech2018

    … story on seismic response. In this study, four distributions of strength are used as bounding cases. The Parabolic strength distribution (1) results from the ELF vertical force distribution method in ASCE 7 that assigns forces to each level based on weight and story height. The Triangular …

    vt Repository record

  7. Patterns of Diurnal Vertical Distribution and Dispersal-Recruitment Mechanisms of Decapod Crustacean Larvae and Postlarvae in the Chesapeake Bay, Virginia and Adjacent Offshore Waters

    Maris, Robert Copeland2019

    … important populations of decapod crustaceans. Vertical positioning in the water column plays a major role in the particular strategies of retention or expulsion with immigration.</p> <p>The present study was undertaken to investigate variations in vertical distribution according to temporal …

    odu Repository record

  8. Exploring physical, biological, and behavioral processes that affect larval fish distribution in the pelagic zone of Lake Michigan

    Martin, BenjaminUniversity of Illinois at Urbana-Champaign2010

    … in biotic and abiotic conditions along a vertical gradient, the vertical distribution of larval fish can profoundly affect their growth and survival. In large systems such as the Great Lakes, vertical distribution patterns can also influence dispersal and ultimately settlement events. …

    uiuc Repository record

  9. Ecological Aspects of Four Turfgrass Nematode Genera on Putting Green Turf in Illinois

    Davis, Richard FrederickUniversity of Illinois at Urbana-Champaign2014

    … annual bluegrass at 24C, 28C, and 30C; (3) the vertical distribution of T. nudus, Criconemella curvata, Helicotylenchus cornurus, and Hoplolaimus galeatus in the upper 5 cm of fenamiphos-treated and nontreated bentgrass putting green turf, and the effect of vertical distribution on the …

    uiuc Repository record

  10. Distribuição vertical do filo Chaetognatha em um ponto fixo na baía de Guanabara (RJ-Brasil)

    Castellões, Paula VieiraUniversidade Federal do Rio de Janeiro2000

    … lives in all oceans of the world . Their vertical distribution is result of ontogenetic migrations and environmental variations . The purpose of this study is evaluate the vertical distribution of the Phylum Chaetognatha species at one fixed point of Guanabara Bay . Surface and bottom …

    brazil-uerj Repository record

  11. Lidar remote sensing of aerosol and ozone profiles and application to air quality studies in New York City area

    Li, Dingdong2025

    … meteorology, and regional transport. However, vertical distribution observations are still lacking. This thesis utilizes lidar remote sensing techniques to retrieve the vertical distribution of O<sub>3</sub> and aerosols and study air pollution episodes in the NYC metropolitan area.</p> <p>The …

    cuny Repository record

  12. Distribution of copper, zinc and cadmium in the southern ocean south of South Africa

    Monteiro, Pedro M SDepartment of Geological Sciences1982

    … to play an important role in determining the vertical distribution of these chemical components.

    cape-town Repository record

  13. Responses of Boom-Forming Phytoplankton Populations to Changes in Reservoir Chemistry and Physics

    Hamre, Kathleen DiamondVirginia Tech2016

    … exhibit high horizontal (inflow to dam) and vertical (surface to sediments) environmental heterogeneity, which plays a large role in determining phytoplankton population dynamics. In this thesis, I explore how three bloom-forming phytoplankton taxa, the dinoflagellates Peridinium and …

    vt Repository record

  14. 3-D Modeling of Nearshore Circulation Using ROMS-SWAN: Model Upgrades and Evaluation

    Kumar, Nirnimesh

    … of the coupled model which implements a new vertical distribution of the radiation stress term based on Mellor (2008) that is more appropriate for sigma coordinates. This is further modified for applications in very shallow waters. In addition, a new wave roller model has been included which …

    south-carolina Repository record

  15. A Comparison of Recruitment Strategies Among Brachyuran Crustacean Megalopae of the York River, Lower Chesapeake Bay and Adjacent Shelf Waters

    Johnson, David Franklin2019

    … stages of 11 brachyuran species were sampled. Vertical and horizontal distributions are described for each species in relation to salinity and water column stratification. The megalopae are assigned to three apparent recruitment strategies: retained estuarine, expelled estuarine and retained …

    odu Repository record

  16. ΣΥΣΤΗΜΑΤΙΚΗ ΖΩΟΓΕΩΓΡΑΦΙΚΗ ΚΑΙ ΟΙΚΟΛΟΓΙΚΗ ΜΕΛΕΤΗ ΤΩΝ ΔΗΜΟΣΠΟΓΓΩΝ ΤΗΣ ΗΠΕΙΡΩΤΙΚΗΣ ΥΦΑΛΟΚΡΗΠΙΔΑΣ ΤΟΥ ΒΟΡΕΙΟΥ ΑΙΓΑΙΟΥ

    Βουλτσιάδου-Κούκουρα, Ελένη, Voultsiadou-Koukoura, EleniAristotle University Of Thessaloniki (AUTH)1986

    … SUBJECTS ARE STUDIED: THEIR GEOGRAPHICAL AND VERTICAL DISTRIBUTION, THEIR FREQUENCY, THE SUBSTRATES OF SETTLEMENT AND THEIR APPEARANCE IN THE VARIOUS BENTHIC ASSEMBLAGES. FINALLY, THE ASSOCIATION OF SOME OF THE SPONGE SPECIES WITH OTHER ANIMAL SPECIES IS ALSO EXAMINED.

    greece Repository record

  17. A phytomer-based simulation model for growth in competitive weed-crop systems

    Alm, David MichaelUniversity of Illinois at Urbana-Champaign1989

    … the dynamics of vegetative phenology and vertical distribution of leaf area in competitive weed-crop systems was developed. The model was based on (1) a temperature function for leaf appearance rate (2) a function for individual leaf expansion based on leaf appearance (3) a function for …

    uiuc Repository record

  18. Bio-optische Modellierung des pelagischen Ökosystems nördlich der Kanarischen Inseln

    Zielinski, OliverUniversität Oldenburg

    … production but a pronounced change in the vertical distribution of phytoplankton in the water column.

    oldenburg Repository record

  19. A preliminary account of investigations into the False Bay sublittoral by the use of a diving helmet

    Jackson,Peter Brian NevilleDepartment of Biological Sciences1950

    … animals of the zone, their ecology, lateral and vertical distribution and so on. Stephenon has, in three papers (1939, 1944,1947), dealt with general results and conclusions drawn from this survey. This work dealt entirely with the biotic between tidelevels, i.e., from the sublittoral fringe …

    cape-town Repository record

  20. A preliminary account of investigations into the False Bay sublittoral by the use of a diving helmet

    Jackson, P B N (Peter Brian Neville), 1923-Department of Biological Sciences1950

    … animals of the zone, their ecology, lateral and vertical distribution and so on. Stephenon has, in three papers (1939, 1944,1947), dealt with general results and conclusions drawn from this survey. This work dealt entirely with the biotic between tidelevels, i.e., from the sublittoral fringe …

    cape-town Repository record

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