Productivity

Modeling water quality in aquaculture ecosystems

Abstract: The techniques and uses of computer models, future developments, and applications of computer modeling in aquaculture are reviewed. The General characteristics of aquaculture ecosystems are […]

  • Date of Publication: 1991
  • Author(s): Raul H. Piedrahita
  • Type of Document: Scholarly Article

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Engineering aspects of warmwater hatchery design

Abstract: Engineering considerations for the design of hatchery systems for warmwater fishes are presented in this paper. The material is presented as it relates to specific […]

  • Date of Publication: 1991
  • Author(s): Raul H. Piedrahita
  • Type of Document: Conference Proceeding or Document

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Fertilized non-fed pond systems

Abstract: Non-fed ponds are aquaculture production systems that do not depend on the addition of fish food, but derive their productivity from organic and inorganic fertilizers. […]

  • Date of Publication: 1991
  • Author(s): Raul H. Piedrahita; Philip Giovannini
  • Type of Document: Conference Proceeding or Document

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Comparison of Two Samplers Used with an Automated Data Acquisition System in Whole-Pond, Community Metabolism Studies

Abstract: Automated data-logging equipment permits frequent in situ measurements of water quality variables and allows for better estimates of primary production and community metabolism in aquaculture […]

  • Date of Publication: 1991
  • Author(s): Bartholomew W. Green; David R. Teichert-Coddington
  • Type of Document: Scholarly Article

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Relationships Among Nutrient Inputs, Water Nutrient Concentrations, Primary Production, and Yield of Oreochromis niloticus in Ponds

Abstract: Experiments were run to assess the physical, chemical, and biological processes leading to increased production of fertilized fish ponds in Thailand for approximately 5 months […]

  • Date of Publication: 1991
  • Author(s): James S. Diana; C. Kwei Lin; Phillip J. Schneeberger
  • Type of Document: Scholarly Article

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Simulation of Short-Term Management Actions to Prevent Oxygen Depletion in Ponds

Abstract: The study examined possible changes in dissolved oxygen concentration resulting from various short-term management actions that can be undertaken in response to cloudy conditions. The […]

  • Date of Publication: 1991
  • Author(s): Raul H. Piedrahita
  • Type of Document: Scholarly Article

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Production of Oreochromis niloticus (L.) and ecosystem dynamics in manured ponds of three depths

Abstract: During three 5-month experiments in Thailand, earthen ponds of approximately 370 m2 surface area were stocked with male Nile tilapia, Oreochromis niloticus (L.), fingerlings of […]

  • Date of Publication: 1991
  • Author(s): J.P. Szyper; K.D. Hopkins; C. Kwei Lin
  • Type of Document: Scholarly Article

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Substitution of chicken litter for feed in production of penaeid shrimp in Honduras

Abstract: Two experiments were conducted in Choluteca, Honduras, to asertain effects on yield and profitability of partial substitution of chicken litter for feed during initial growth […]

  • Date of Publication: 1991
  • Author(s): David R. Teichert-Coddington; Bartholomew W. Green; Ralph W. Parkman
  • Type of Document: Scholarly Article

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Application of limnology for efficient nutrient utilization in tropical pond aquaculture

Abstract: In most waste-fed systems, water quality degradation ultimately limits net fish yields (FY). Often as fertilization rates increase, inefficient nitrogen utilization together with daytime pHs […]

  • Date of Publication: 1991
  • Author(s): C. F. Knud-Hansen; C.D. McNabb; T. R. Batterson
  • Type of Document: Conference Proceeding or Document

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Bias in seine sampling of tilapia

Abstract: Seine sampling is widely recognized by aquaculturists to produce upwardly-biased estimates of size. This bias is sometimes given as a reason for not including sampling […]

  • Date of Publication: 1991
  • Author(s): Kevin Hopkins; Amararatne Yakupitiyage
  • Type of Document: Scholarly Article

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