rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    title: Managing phytoplankton community composition
    sub title: can we do it?
  name:
    name part: Roelke, Daniel L.
    role:
      role term: creator
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: xx
    date issued: 1997
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: print
    extent: xv, 298 leaves : illustrations ; 28 cm.
  abstract: Noxious bloom events are becoming more prevalent with
  abstract: increasing anthropogenic activities. To lessen ecological
  abstract: damage, there is a need to develop phytoplankton management
  abstract: programs aimed at enhancing growth of beneficial algae. The
  abstract: success of such management schemes will be dependent on the
  abstract: predictability of phytoplankton succession within the target
  abstract: system to a controlled perturbation. Freshwater lakes appear
  abstract: to exhibit a degree of predictability as described by the
  abstract: conceptual model of the Phytoplankton Ecology Group (PEG-
  abstract: model) and Equilibrium Resource Competition theory (ERC-
  abstract: theory). Using mathematical models and field data collected
  abstract: from the Nueces River estuary, Texas, I investigated whether
  abstract: the PEG-model and ERCtheory could be applied to a marine
  abstract: system. I also investigated approaches to managing
  abstract: phytoplankton community composition through nutrient loading.
  abstract: Initial growth and accumulation of biomass of edible
  abstract: phytoplankton forms after a favorable nutrient perturbation,
  abstract: a predominant feature of the PEG-model, was consistently
  abstract: observed in the field data and mathematical models.
  abstract: Dominance of phytoplankton species with optimal nitrogen to
  abstract: phosphorus ratios similar to ambient nitrogen to phosphorus
  abstract: ratios, the crux of ERC-theory, was not consistently observed
  abstract: in the field data or mathematical models. Rather the ability
  abstract: of a phytoplankton species to successfully compete against
  abstract: other algae was a function of its physiological growth and
  abstract: morphological characteristics. In the Nueces River estuary,
  abstract: succession within the phytoplankton community showed a degree
  abstract: of predictability to nutrient perturbations. Therefore,
  abstract: management of the phytoplankton community composition may be
  abstract: possible. The PEG-model appears to be a useful guide for a
  abstract: phytoplankton management scheme, while the utility of ERC-
  abstract: theory may be limited. The mathematical models indicated
  abstract: that supplying the nutrients to an estuary in a pulsing
  abstract: fashion may allow greater growth of beneficial algae and
  abstract: subsequent growth of copepods. Further model refinement and
  abstract: characterization of the target system (in this case the
  abstract: Nueces River estuary) are necessary, however, before models
  abstract: of this nature can be used as a guide to phytoplankton
  abstract: management programs.
  note: by Daniel L. Roelke.
  note: Vita.
  note: "Major Subject: Oceanography".
  note: Issued also on microfiche from University Microfilms Inc.
  note: Includes bibliographical references: pages 196-214.
  note: Ph. D. Texas A&M University 1997.
  subject:
    topic: Major oceanography
  identifier: 98-00802 UMI
  identifier: http://proxy.library.tamu.edu/login
  related item:
    location:
      url: http://proxy.library.tamu.edu/login
  record info:
    record content source: TXA
    record creation date: 980408
    record change date: 20190325093503.0
    record identifier: in00001416143