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C.E.B.A.S.-AQUARACK project: the Mini-Module as tool in artificial ecosystem research.

V Blum1, E Stretzke, K Kreuzberg

  • 1C.E.B.A.S. Center of Excellence, Ruhr-University Bochum, FRG.

Acta Astronautica
|July 1, 1994
PubMed
Summary

The Closed Equilibrated Biological Aquatic System (C.E.B.A.S.) Mini-Module is an 11-liter aquatic artificial ecosystem for long-term experiments. It demonstrates biological stability and supports bioregenerative life support systems.

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Area of Science:

  • Space Biology and Life Support Systems
  • Ecosystem Research
  • Aquatic Systems Engineering

Background:

  • The C.E.B.A.S. (Closed Equilibrated Biological Aquatic System) project has been presented at international symposia since 1989.
  • Previous iterations focused on long-term, multi-generational experiments with aquatic organisms for space stations and ground laboratories.
  • A miniaturized version was developed for short-term missions, fitting within a spacelab middeck locker.

Purpose of the Study:

  • To present the latest development: an optimized prototype of the C.E.B.A.S. Mini-Module.
  • To detail the hardware status and functional data of the fully biological life support system.
  • To analyze the biological stability and inter-dependencies within the aquatic artificial ecosystem for bioregenerative life support applications.

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Main Methods:

  • Development of an 11-liter optimized prototype C.E.B.A.S. Mini-Module.
  • Integration of Zoological (animal tank with filter) and Botanical (plant container) components.
  • Monitoring of water parameters, and collection of morphological and physiological data from experimental fish (Xiphophorus helleri) and plants (Ceratophyllum species).

Main Results:

  • The C.E.B.A.S. Mini-Module operates effectively for several weeks in a closed state.
  • Mid-term registrations confirm the stability of water parameters within the system.
  • Morphological and physiological data from fish and plants demonstrate the biological stability of the system.

Conclusions:

  • The C.E.B.A.S. Mini-Module serves as a functional aquatic artificial ecosystem.
  • It provides a platform for studying component interactions and system theory relevant to bioregenerative life support.
  • The system's biological stability is a crucial precondition for designing future aquatic modules for life support systems.