Abstract：
:It was determined that there is a relationship between prevalence and mean densities of Trichodina spp. on Merlangius merlangus and organic pollution, measured as levels of nitrite, nitrate and phosphate in the surrounding environment. Monthly, two left anterior gill arcs of 60 M. merlangus (unless otherwise stated) captured with hook and line were fixed in 10% formalin. The number of Trichodina spp. was determined by counting all of the cells with a grid slide. The two right anterior gill arcs were used to prepare dry smears to picture the morphology of the trichodinids and to determine species composition. High levels of prevalence and densities of the protozoan were observed during the late fall, winter and early spring months. Then, prevalence decreased to lower levels but never below 60%, an indication of the important role of M. merlangus for Trichodina spp. in the studied region. A multivariate analysis revealed that the magnitude of prevalence was related to the level of all three parameters: nitrite, nitrate and phosphate (r2=0.59). However, a much stronger relationship between prevalence and nitrate, phosphate, oxygen and temperature (r2=0.89) was detected. Consequently, the seasonal parasite prevalence and density were affected by organic pollution. The timing for a high prevalence and mean densities of this parasite also suggests that primary production may be responsible for the observed seasonal variation in prevalence and mean densities. By using the model describing the relationship between the water quality parameters and the prevalence data of Trichodina spp. recalculated values and observed field data corresponded closely.
journal_name
Parasitol Resjournal_title
Parasitology researchauthors
Ogut H,Palm HWdoi
10.1007/s00436-005-1346-2subject
Has Abstractpub_date
2005-06-01 00:00:00pages
149-53issue
3eissn
0932-0113issn
1432-1955journal_volume
96pub_type
杂志文章abstract：:A cross-sectional study was conducted to evaluate the seroprevalence of and risk factors for Toxoplasma gondii antibodies in 260 blood donors seen at blood banks in Mansoura University Hospital, Egypt. Blood donors were interviewed about sociodemographic characteristics and risk factors for T. gondii infection. A bloo...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-009-1350-z
更新日期：2009-06-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-009-1604-9
更新日期：2009-11-01 00:00:00
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journal_title：Parasitology research
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更新日期：1991-01-01 00:00:00
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pub_type： 杂志文章
doi：10.1007/s00436-002-0775-4
更新日期：2003-03-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-002-0590-y
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-017-5395-0
更新日期：2017-04-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-012-2829-6
更新日期：2012-07-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-010-2121-6
更新日期：2011-04-01 00:00:00
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journal_title：Parasitology research
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更新日期：2009-11-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-006-0382-x
更新日期：2007-04-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-012-3150-0
更新日期：2013-01-01 00:00:00
abstract：:The problems of parasite resistance, as well as the toxic residues to most of the commercially available antipiroplasmic drugs severely weaken their effective, curative, and environmental safe employment. Therefore, it is clear that the development of treatment options for piroplasmosis is vital for improving disease ...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-020-06796-z
更新日期：2020-09-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-009-1412-2
更新日期：2009-08-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00931279
更新日期：1989-01-01 00:00:00
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pub_type： 杂志文章
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更新日期：2020-11-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-013-3664-0
更新日期：2014-01-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章,随机对照试验
doi：10.1007/s00436-006-0293-x
更新日期：2007-02-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
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更新日期：2008-02-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
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更新日期：1998-07-01 00:00:00
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更新日期：2000-04-01 00:00:00
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pub_type： 杂志文章
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更新日期：2017-01-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-009-1530-x
更新日期：2009-10-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
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更新日期：2018-01-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00932381
更新日期：1994-01-01 00:00:00
abstract：:During investigations of fish parasites in the Neotropics (including the state of Veracruz and the Yucatán Peninsula in the Gulf of Mexico, the Chautengo Lagoon on the Pacific coast of the state of Guerrero in Mexico, and Lake Gatun in the Panama Canal), three monogenoidean (Dactylogyridae) species were found parasiti...
journal_title：Parasitology research
pub_type： 杂志文章
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更新日期：2009-09-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
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更新日期：2006-11-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
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更新日期：2012-01-01 00:00:00
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journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/BF00535333
更新日期：1987-01-01 00:00:00
abstract：:We assessed the cellular immunological responses to two Plasmodium falciparum liver-stage antigen (LSA)-1-derived T-cell epitopes in healthy Gabonese children and adults. The N-terminal peptide, designated T1, induced interferon (IFN)-gamma production in peripheral blood mononuclear cells (PBMC) from a significantly l...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s00436-002-0703-7
更新日期：2002-12-01 00:00:00
abstract：:Filter-feeding molluscan shellfish can concentrate environmentally derived waterborne pathogens of humans, which can be utilized in the sanitary assessment of water quality. In the present study, oocysts of Cryptosporidium were detected in Bent mussels (Ischadium recurvum) at two Chesapeake Bay sites from which C. par...
journal_title：Parasitology research
pub_type： 杂志文章
doi：10.1007/s004360050590
更新日期：1999-07-01 00:00:00
