Abstract：
:The recovery of bdellovibrios from estuarine sediments over an annual cycle was studied. Greater numbers of the predators were recovered in sediment than in the water column. Increases in the number of bdellovibrios recovered from sediment over various periods of time suggest that multiplication of the predators occurred. Sediment was observed to be an important ecosystem for the survival of bdellovibrios in the winter months. As has been observed in water, the number of bdellovibrios in sediment fluctuated, with seasonal and temperature changes declining to very low numbers during the winter months. In the colder months, low numbers of the predators appeared to winter-over in sediment, with greater numbers of the organisms being recovered from deeper sediment. As the water temperature warmed in the spring, increases in the number of bdellovibrios occurred first in sediment and subsequently in water. This increase of bdellovibrios in sediment may have resulted in the shedding of the organisms into the water column where their numbers subsequently increased. Population fluctuations of bdellovibrios were similar in both water and sediment. Although the temperature may account for much of the observed fluctuation in the number of bdellovibrios, other factors, including salinity and the number of host bacteria, may also play a major role. The number of bdellovibrios recovered from sediment correlated positively with the water temperature, and negatively with the water salinity and the number of bacterial colony-forming units from sediment. The results of this study revealed the significance of sediment to the seasonal cycle, survival, and growth of the bdellovibrios in an estuarine environment.
journal_name
Microb Ecoljournal_title
Microbial ecologyauthors
Williams HNdoi
10.1007/BF02012949subject
Has Abstractpub_date
1988-01-01 00:00:00pages
9-20issue
1eissn
0095-3628issn
1432-184Xjournal_volume
15pub_type
杂志文章abstract：:We investigated the impact of fish farm biodeposition on benthic bacteria, thraustochytrid protists, and heterotrophic protozoa (nanoflagellates and ciliates) in an oligotrophic area of the Mediterranean Sea. The fish farm impact was investigated both on a seagrass (Posidonia oceanica) bed and on soft bottom sediments...
journal_title：Microbial ecology
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abstract：:Bacterial populations association with phytoplankton cultures used as food for bivalve larvae were enumerated and identified from their partial 16S rDNA gene sequences. Microalgae were provided from different European hatcheries during the larval production season. Average concentration (direct counts) of bacteria ran...
journal_title：Microbial ecology
pub_type： 杂志文章
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journal_title：Microbial ecology
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更新日期：2020-07-01 00:00:00
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journal_title：Microbial ecology
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更新日期：1994-09-01 00:00:00
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journal_title：Microbial ecology
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更新日期：1988-07-01 00:00:00
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journal_title：Microbial ecology
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journal_title：Microbial ecology
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更新日期：2010-08-01 00:00:00
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journal_title：Microbial ecology
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更新日期：2000-08-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
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更新日期：2018-10-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
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更新日期：2012-04-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
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更新日期：2021-01-09 00:00:00
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journal_title：Microbial ecology
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更新日期：2009-07-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF00167789
更新日期：1992-11-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02011248
更新日期：1987-03-01 00:00:00
abstract：:The ecological importance of microbial symbioses in terrestrial soils is widely recognized, but their role in soils that accumulate in forest canopies is almost entirely unknown. To address this gap, this study investigated the Frankia-Alnus rubra symbiosis in canopy and forest floor roots at Olympic National Park, WA...
journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-009-9587-8
更新日期：2010-02-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/BF02011170
更新日期：1986-09-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-017-0943-9
更新日期：2017-08-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-002-1001-8
更新日期：2002-07-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
doi：10.1007/s00248-002-0007-6
更新日期：2002-07-01 00:00:00
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pub_type： 杂志文章,meta分析
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更新日期：2018-02-01 00:00:00
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更新日期：2015-04-01 00:00:00
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更新日期：2016-11-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
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更新日期：2019-10-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
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更新日期：2005-01-01 00:00:00
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journal_title：Microbial ecology
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更新日期：2001-02-01 00:00:00
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journal_title：Microbial ecology
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更新日期：2019-05-01 00:00:00
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journal_title：Microbial ecology
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更新日期：2013-07-01 00:00:00
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journal_title：Microbial ecology
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更新日期：2011-11-01 00:00:00
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journal_title：Microbial ecology
pub_type： 杂志文章
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更新日期：2001-04-01 00:00:00
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journal_title：Microbial ecology
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更新日期：2013-04-01 00:00:00
