A Continuous Culturing Device and its Unique Possibilities
Program year: 1996/1997 Digitized from print original stored in HDR Diatoms (marine algae) are the largest contributor of biological productivity in the Antarctic. As the siliceous diatoms die their tests begin to accumulate on the sea floor, and preserve a record of how environmental conditions cha...
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fttexasamuniv:oai:oaktrust.library.tamu.edu:1969.1/CAPSTONE-LariscyK_1997 2023-07-16T03:52:41+02:00 A Continuous Culturing Device and its Unique Possibilities Lariscy, Kevin Slowey, Niall 1997 41 pages electronic application/pdf https://hdl.handle.net/1969.1/CAPSTONE-LariscyK_1997 unknown https://hdl.handle.net/1969.1/CAPSTONE-LariscyK_1997 diatom tests environmental conditions continuous culturing Thesis text 1997 fttexasamuniv 2023-06-27T23:02:51Z Program year: 1996/1997 Digitized from print original stored in HDR Diatoms (marine algae) are the largest contributor of biological productivity in the Antarctic. As the siliceous diatoms die their tests begin to accumulate on the sea floor, and preserve a record of how environmental conditions change through time. However, studies of diatom tests in seafloor sediments are hindered by a significant problem: the uncertainty about the relationship between diatom growth rates, diatom test characteristics and environmental conditions. A continuously culturing turbidostat was built in order help solve this problem. Continuous culturing provides critical advantages over commonly employed batch culturing. It allows for the diatom growth rate and seawater constituents to be maintained precisely at desired levels, and it yields enough diatom tests for geochemical analysis. Conditions that can be tested include temperature, nutrient levels, isotopic and trace metal levels, light intensity, day/night patterns, or other environmental conditions that occur, or could occur in nature with such factors as ozone depletion or global warming can be explored. Thesis Antarc* Antarctic Texas A&M University Digital Repository Antarctic The Antarctic |
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Open Polar |
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Texas A&M University Digital Repository |
op_collection_id |
fttexasamuniv |
language |
unknown |
topic |
diatom tests environmental conditions continuous culturing |
spellingShingle |
diatom tests environmental conditions continuous culturing Lariscy, Kevin A Continuous Culturing Device and its Unique Possibilities |
topic_facet |
diatom tests environmental conditions continuous culturing |
description |
Program year: 1996/1997 Digitized from print original stored in HDR Diatoms (marine algae) are the largest contributor of biological productivity in the Antarctic. As the siliceous diatoms die their tests begin to accumulate on the sea floor, and preserve a record of how environmental conditions change through time. However, studies of diatom tests in seafloor sediments are hindered by a significant problem: the uncertainty about the relationship between diatom growth rates, diatom test characteristics and environmental conditions. A continuously culturing turbidostat was built in order help solve this problem. Continuous culturing provides critical advantages over commonly employed batch culturing. It allows for the diatom growth rate and seawater constituents to be maintained precisely at desired levels, and it yields enough diatom tests for geochemical analysis. Conditions that can be tested include temperature, nutrient levels, isotopic and trace metal levels, light intensity, day/night patterns, or other environmental conditions that occur, or could occur in nature with such factors as ozone depletion or global warming can be explored. |
author2 |
Slowey, Niall |
format |
Thesis |
author |
Lariscy, Kevin |
author_facet |
Lariscy, Kevin |
author_sort |
Lariscy, Kevin |
title |
A Continuous Culturing Device and its Unique Possibilities |
title_short |
A Continuous Culturing Device and its Unique Possibilities |
title_full |
A Continuous Culturing Device and its Unique Possibilities |
title_fullStr |
A Continuous Culturing Device and its Unique Possibilities |
title_full_unstemmed |
A Continuous Culturing Device and its Unique Possibilities |
title_sort |
continuous culturing device and its unique possibilities |
publishDate |
1997 |
url |
https://hdl.handle.net/1969.1/CAPSTONE-LariscyK_1997 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_relation |
https://hdl.handle.net/1969.1/CAPSTONE-LariscyK_1997 |
_version_ |
1771546706709577728 |