Particle-associated Planktonic Naked Amoebae in the Hudson Estuary: Size-fraction Related Densities, Cell Sizes and Estimated Carbon Content
cytuj
pobierz pliki
RIS BIB ENDNOTEChoose format
RIS BIB ENDNOTEParticle-associated Planktonic Naked Amoebae in the Hudson Estuary: Size-fraction Related Densities, Cell Sizes and Estimated Carbon Content
Publication date: 15.05.2011
Acta Protozoologica, 2011, Volume 50, Issue 1, pp. 15 - 22
https://doi.org/10.4467/16890027AP.11.002.0002Authors
Particle-associated Planktonic Naked Amoebae in the Hudson Estuary: Size-fraction Related Densities, Cell Sizes and Estimated Carbon Content
Naked amoeba densities, sizes, biodiversity and carbon content were examined in relation to two particle size fractions (< 200 μm and > 200 μm) of suspended matter in the water column of the Hudson Estuary at a near-shore location south of the Tappan Zee, Palisades, New York. The densities varied markedly among the two particle fractions, and therefore the mean densities were not significantly different between the larger and smaller particle fractions. In contrast, the mean sizes and mean carbon content were statistically greater on larger size suspended particles compared to smaller size particles. There was a broader size range of amoebae on the larger particles, including very large Cochliopodium, Vannella, Mayorella, and Hartmannella species suggesting a larger biodiversity, also indicated by a larger diversity coefficient for the > 200-μm-particle fraction compared to the < 200-μm-particle fraction, 4.51 and 4.18, respectively. In conclusion, the size of suspended particulates in the water column of near-shore, estuarine habitats may have a significant influence on the composition of naked amoebae communities and their ecological roles, especially the organization of particle-associated microbial food webs.
Adl S. M., Gupta, V. V. S. R. (2006) Protists in soil ecology and forest nutrient cycling. Can. J. Forest Res. 36: 1805–1817
Anderson, O. R. (1994) Fine structure of the marine amoeba Vexillifera telmathalassa collected from a coastal site near Barbados with a description of salinity tolerance, feeding behavior and prey. J. Eukaryot. Microbiol. 41: 124–128
Anderson, O. R. (2002) Laboratory and field-based studies of abundances, small-scale patchiness, and diversity of gymnamoebae in soils of varying porosity and organic content: Evidence of microbiocoenoses. J. Eukaryot. Microbiol. 49: 17–23
Anderson O. R. (2006a) A method for estimating cell volume of amoebae based on measurements of cell length of motile forms: Physiological and ecological applications. J. Eukaryot. Microbiol. 53: 185–187
Anderson O. R. (2006b) The density and diversity of gymnamoebae associated with terrestrial moss communities (Bryophyta: Bryopsida) in a northeastern U.S. forest. J. Eukaryot. Microbiol. 53: 275–279
Anderson O. R. (2007) A seasonal study of the carbon content of planktonic naked amoebae in the Hudson Estuary and in a productive freshwater pond with comparative data for ciliates. J. Eukaryot. Microbiol. 54: 388–391
Anderson O. R. (2008) The role of amoeboid protists and the microbial community in moss-rich terrestrial ecosystems: Biogeochemical implications for the carbon budget and carbon cycle, especially at higher latitudes. J. Eukaryot. Microbiol. 55: 145–150
Anderson O. R. (2010) The reciprocal relationships between high latitude climate changes and the ecology of terrestrial microbiota: Emerging theories, models, and empirical evidence, especially related to global warming. Tundras: Vegetation, Wildlife and Climate Trends. (Eds. B. Gutierrez, C. Pena). Nova Science Publ., New York, 47–79.
Anderson O. R., Rogerson A. (1995) Annual abundances and growth potential of gymnamoebae in the Hudson Estuary with comparative data from the Firth of Clyde. Eur. J. Protistol. 31: 223–233
Bischoff P. J. (2002) An analysis of the abundance, diversity and patchiness of terrestrial gymnamoebae in relation to soil depth and precipitation events following a drought in southeastern U.S.A. Acta Protozool. 41: 183–189
Bischoff P. J., Wetmore, S. (2009) Seasonal abundances of naked amoebae in biofilms on shells of zebra mussels (Dreissena polymorpha) with comparative data from rock scrapings. J. Eukaryot. Microbiol. 56: 397–399
Bovee E. C. (1985) Class Lobosea Carpenter 1861. In: An Illustrated Guide to the Protozoa., (Eds. J. J. Lee, S. H. Hutner, E. C. Bovee). Society of Protozoologists, Lawrence, KS, 158–211
Hobbie J. E., Daley R. J., Jasper S. (1977) Use of Nuclepore filters for counting bacteria by fluorescence microscopy. Appl. Environ. Microbiol. 33: 1225–1228
Kiss Á. K., Ács É., Kiss K. T., Török J. K. (2009) Structure and seasonal dynamics of the protozoan community (heterotrophic flagellates, ciliates, amoeboid protozoa) in the plankton of
a large river (River Danube, Hungary). Eur. J. Protistol., 45: 121–138
Lesen A. E., Juhl A. R., Anderson O. R. (2010) Abundance and biomass of heterotrophic microplankton in the lower Hudson River Estuary, USA: Potential importance of naked, planktonic amebas for bacterivory and carbon flux. Aquat. Microb. Ecol. 61: 45–56
Mayes D. F., Rogerson A., Marchant H. J., Laybourn-Parry J. (1998) Temporal abundance of naked bacterivore amoebae in coastal east Antarctica. Estuar. Coast. Mar. Sci. 46: 565–572
Page F. S. (1988) A New Key to Freshwater and Soil Gymnamoebae. Freshwater Biological Association, Ambleside, Cumbria, UK, 16–19.
Rogerson A., Gwaltney C. (2000) High numbers of naked amoebae in the planktonic waters of a mangrove stand in southern Florida, USA. J. Eukaryot. Microbiol. 47: 235–241
Rogerson A., Anderson O. R., Vogel C. (2003) Are planktonic naked amoebae predominately floc-associated or free in the water column? J. Plankton Res. 25: 1359–1365
Zimmermann-Timm H., Holst H., Müller S. (1998) Seasonal dynamics of aggregates and their typical biocoenosis in the Elbe estuary. Estuaries, 21: 613–621
Information: Acta Protozoologica, 2011, Volume 50, Issue 1, pp. 15 - 22
Article type: Original article
Biology, Lamont-Doherty Earth Observatory of Columbia University, Palisades, New York, U.S.A.
Published at: 15.05.2011
Article status: Open
Licence: None
Percentage share of authors:
Article corrections:
-Publication languages:
EnglishView count: 2040
Number of downloads: 1247