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David Lapota


Click on the titles below to find US government-authored or -collected reports written by David Lapota

Total Results: 7 Results per page:
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Long Term Dinoflagellate Bioluminescence, Chlorophyll, And Their Environmental Correlates In Southern California Coastal Waters Feb 2012 25 pages
Authors:  David Lapota; SPACE AND NAVAL WARFARE SYSTEMS CENTER PACIFIC SAN DIEGO CA
The full text of this report is available for sale.While many oceanographic studies have focused on the distribution of bioluminescence in the marine environment (Stukalin 1934, Tarasov 1956, Seliger et al. 1961, Clarke and Kelly 1965, Bityukov 1967, Lapota and Losee 1984, Swift et al. 1985, Lapota et al. 1988, Batchelder and Swift 1989, Lapota et al. 1989, Lapota and Rosenberger 1990, Neilson et al. 1995, Ondercin et al. 1995, Swift et al. 1995), little understanding of the seasonality ...


Seasonal Changes of Bioluminescence in Photosynthetic and Heterotrophic Dinoflagellates at San Clemente Island Feb 2012 21 pages
Authors:  David Lapota; SPACE AND NAVAL WARFARE SYSTEMS CENTER PACIFIC SAN DIEGO CA
The full text of this report is available for sale.Despite strong interest in short term process effects on dinoflagellates there have been few investigations on the seasonality of marine bioluminescence. Long term aspects of the development of bioluminescence are unknown for most oceans. The present study was designed to cast light on this question. A station for measuring bioluminescence was established in August 1993 at San Clemente Island (SCI), 100 km offshore of Southern California. Bioluminescence was measured with ...


SSC San Diego Biennial Review 2003. Vol 3: Intelligence, Surveillance, and Reconnaissance 2003 58 pages
Authors:  Robert B. Olds Jr.; H. R. Everett; David Lapota; Vivian D. DiCristofaro; Mark V. Glover; Vincent McDonald; David Morin; Mark W. Owen; Joseph A. Rice; SPACE AND NAVAL WARFARE SYSTEMS CENTER SAN DIEGO CA
The full text of this report is available for sale.Volume 3 of this Biennial Review features ten (10) technical papers describing and discussing innovative technologies being developed at the Spawar Systems Center in San Diego.


Bioluminescent Bioassay System. 24 NOV 1998
Authors:  Hugh D. Copeland; David Lapota; Dena E. Rosenberger; Gary F. Mastny; DEPARTMENT OF THE NAVY WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A system for measuring toxicity levels of a solution includes a water proof sample container transparent to visible light which holds an aqueous test solution containing bioluminescent organisms. A light tight chamber has a cavity which holds the sample container and includes a light port. A stress generating system positioned in the sample container generates pressure pulses which stimulate the organisms to generate light emissions. A light detector system mounted ...


Bioluminescent Bioassay System. 15 OCT 1996
Authors:  David Lapota; Gary F. Mastny; Hugh D. Copeland; Dena E. Rosenberger; DEPARTMENT OF THE NAVY WASHINGTON DC
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.A system for measuring toxicity levels of a solution includes a water proof sample container transparent to visible light which holds an aqueous test solution containing bioluminescent organisms. A light tight chamber has a cavity which holds the sample container and includes a light port. A stress generating system positioned in the sample container generates pressure pulses which stimulate the organisms to generate light emissions. A light detector system mounted ...


Diel Bioluminescence in Heterotrophic and Photosynthetic Marine Dinoflagellates in an Arctic Fjord 1992
Authors:  David Lapota; David K. Young; Stephen A. Bernstein; Mark L. Geiger; Howard D. Huddell; NAVAL COMMAND CONTROL AND OCEAN SURVEILLANCE CENTER RDT AND E DIV SAN DIEGO CA
The full text of this report is not available and therefore is not for sale. This information is provided for reference purposes only.Oceanic and coastal bioluminescence in surface waters, in many instances, is produced by microscopic dinoflagellates. Their light emission is usually observed at a maximum during the night hours and markedly inhibited during the day. This diel periodicity has never been observed in situ for identified species and never before in heterotrophic Protoperidinium dinoflagellates. Pronounced differences in stimulable bioluminescence measured with bathyphotometers in Vestfjord, Norway in September 1990 correlated with simultaneous ...


Observations and Measurements of Planktonic Bioluminescence in and Around a Milky Sea Mar 1988 28 pages
Authors:  David Lapota; Charles Galt; Jon R Losee; Howard D Huddell; James K Orzech; Kemmeth H Nealson; NAVAL OCEAN SYSTEMS CENTER SAN DIEGO CA
The full text of this report is available for sale.The Indian Ocean and Arabian Sea have been observed to exhibit surface bioluminescent displays unparalled in intensity and spatial extent. In July 1985, we conducted bioluminescence measurements in the surface waters of the western Arabian sea during the period of the Southwest monsoon and to identify the causative plakton for those displays. A unique type of bioluminescence display, known as Milky sea, was observed on the ocean surface for 3 ...


Total Results: 7 Results per page: