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Life History Responses and Feeding Behavior of Microcrustacea in Altered Gravity - Applicability in Bioregenerative Life Support Systems (BLSS)

Title data

Fischer, Jessica ; Schoppmann, Kathrin ; Laforsch, Christian:
Life History Responses and Feeding Behavior of Microcrustacea in Altered Gravity - Applicability in Bioregenerative Life Support Systems (BLSS).
In: Microgravity Science and Technology. Vol. 29 (2017) Issue 3 . - pp. 241-249.
ISSN 1875-0494
DOI: https://doi.org/10.1007/s12217-017-9545-x

Abstract in another language

Manned space missions, as for example to the planet Mars, are a current objective in space exploration. During such long-lasting missions, aquatic bioregenerative life support systems (BLSS) could facilitate independence of resupply from Earth by regenerating the atmosphere, purifying water, producing food and processing waste. In such BLSS, microcrustaceans could, according to their natural role in aquatic ecosystems, link oxygen liberating, autotrophic algae and higher trophic levels, such as fish. However, organisms employed in BLSS will be exposed to high acceleration (hyper-g) during launch of spacecrafts as well as to microgravity (μg) during space travel. It isthus essential that these organisms survive, perform and reproduce under altered gravity conditions. In this study we present the first data in this regard for the microcrustaceasDaphnia magna and Heterocypris incongruens. We found that after hyper-g exposure (centrifugation) approximately one third of the D. magna population died within one week(generally indicating that possible belated effects have to be considered when conducting and interpreting experiments during which hyper-g occurs). However, suchlike and even higher losses could be countervailed by the surviving daphnids’ unaltered high reproductive capacity. Furthermore, we can show that foraging and feeding behavior of D. magna (drop tower) and H. incongruens (parabolic flights) arerarely altered in μg. Our results thus indicate that both species are suitable candidates for BLSS utilized in space.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: BAYCEER141495
Institutions of the University: Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology I
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology > Chair Animal Ecology I > Chair Animal Ecology I - Univ.-Prof. Dr. Christian Laforsch
Research Institutions
Research Institutions > Research Centres
Research Institutions > Research Centres > Bayreuth Center of Ecology and Environmental Research- BayCEER
Faculties
Faculties > Faculty of Biology, Chemistry and Earth Sciences
Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Biology
Result of work at the UBT: Yes
DDC Subjects: 500 Science
Date Deposited: 05 Jan 2018 11:02
Last Modified: 05 Jan 2018 11:02
URI: https://eref.uni-bayreuth.de/id/eprint/41173