The occurrence and abundance of infective stages of zoonotic nematodes in selected edible fish sold in Australian fish markets

2021 ◽  
pp. 104833
Author(s):  
Jaydipbhai Suthar ◽  
Shokoofeh Shamsi
Keyword(s):  
Author(s):  
Jingyu Zhang ◽  
Lei Yuan ◽  
Lin Zhang ◽  
Yi Pan ◽  
Hong Chen ◽  
...  
Keyword(s):  

2021 ◽  
Vol 284 ◽  
pp. 117154
Author(s):  
Ying Wang ◽  
Linhui Cui ◽  
Chenglian Feng ◽  
Zhaomin Dong ◽  
Wenhong Fan ◽  
...  

2016 ◽  
Vol 5 (4) ◽  
Author(s):  
Raffaella Branciari ◽  
David Ranucci ◽  
Dino Miraglia ◽  
Andrea Valiani ◽  
Fabrizia Veronesi ◽  
...  

<em>Eustrongylides</em> spp. is considered a freshwater fish zoonotic nematode. In the present study, the prevalence of <em>Eustrongylides</em> spp. in six edible fish (European perch - <em>Perca fluviatilis</em>, goldfish - <em>Carassius auratus</em>, largemouth black bass - <em>Micropterus salmoides</em>, tench- <em>Tinca tinca</em>, carp - <em>Cyprinus carpio</em> and sand smelt - Atherina boyeri) of Trasimeno lake was surveyed. The investigations were conducted from October 2014 to September 2015 and 384 specimens per species for each season were caught in Trasimeno lake and examined for the presence of larvae in the abdominal cavity and muscle. The presence of nematodes in the abdominal cavity and musculature was revealed in three fish species. The prevalence of Eustrongylides spp. infection was 6.84, 1.89 and 0.13% in perch, largemouth black bass and sand smelt, respectively. The number of parasites per fish was only one in largemouth black bass and sand smelt and ranged from one up to three in perch. This study states that the European perch, largemouth black bass and sand smelt of Trasimeno lake are infected with zoonotic parasites; therefore, food business operators have to take appropriate measures to guarantee the health of consumers.


Parasitology ◽  
1911 ◽  
Vol 4 (4) ◽  
pp. 364-415 ◽  
Author(s):  
James Johnstone

My attention was first directed to this Cestode in 1906 when I was asked to examine several specimens of edible fish which had been exposed for sale in the public markets and had been condemned as human food on account of the presence of obvious, intrusive bodies in the flesh. In three of these cases the muscles of the flesh of the fishes—a Halibut, a Megrim and a Hake—contained cysts which enclosed the larvae of a Tetrarhynchid, and on examination the latter was identified as T. erinaceus from the peculiar nature of the armature of the proboscides. In another case the wall of the stomach of a Halibut was also infected with the same larvae. Acting on an obsolete principle of Border Law the Fish Inspectors promptly condemned the fishes and then caused them to be examined. I do not think there was any valid reason for the condemnation of the articles of food, for I can find no reference in the literature to the presence of Tetrarhynchids in the human alimentary canal, and there does not appear to be any question of a possible communication of a parasite by the consumption, as food, of such infected flesh. Further the number of larvae present was far too few to lead to any emaciation of the fish, or to the likelihood of the production of toxic substances in the flesh of the animal. Nevertheless the Inspectors probably acted in the interests of the public health in condemning such articles of food as contained obvious cyst-like structures in the flesh, as to the precise nature of which they were ignorant, since there is always the possibility that these bodies might be detrimental to the health of those eating them.


Chemosphere ◽  
2009 ◽  
Vol 76 (6) ◽  
pp. 799-804 ◽  
Author(s):  
Urs Berger ◽  
Anders Glynn ◽  
Katrin E. Holmström ◽  
Marika Berglund ◽  
Emma Halldin Ankarberg ◽  
...  

2009 ◽  
Vol 84 (6) ◽  
pp. 2636-2647 ◽  
Author(s):  
James K. Jancovich ◽  
Michel Bremont ◽  
Jeffrey W. Touchman ◽  
Bertram L. Jacobs

ABSTRACT Members of the genus Ranavirus (family Iridoviridae) have been recognized as major viral pathogens of cold-blooded vertebrates. Ranaviruses have been associated with amphibians, fish, and reptiles. At this time, the relationships between ranavirus species are still unclear. Previous studies suggested that ranaviruses from salamanders are more closely related to ranaviruses from fish than they are to ranaviruses from other amphibians, such as frogs. Therefore, to gain a better understanding of the relationships among ranavirus isolates, the genome of epizootic hematopoietic necrosis virus (EHNV), an Australian fish pathogen, was sequenced. Our findings suggest that the ancestral ranavirus was a fish virus and that several recent host shifts have taken place, with subsequent speciation of viruses in their new hosts. The data suggesting several recent host shifts among ranavirus species increase concern that these pathogens of cold-blooded vertebrates may have the capacity to cross numerous poikilothermic species barriers and the potential to cause devastating disease in their new hosts.


2008 ◽  
Vol 59 (2) ◽  
pp. 137 ◽  
Author(s):  
David Sternberg ◽  
Stephen Balcombe ◽  
Jonathan Marshall ◽  
Jaye Lobegeiger

To examine how food resource availability links with natural variation in primary productivity in the Moonie River, south-west Queensland, the diets of two native Australian fish species (Nematalosa erebi and Macquaria ambigua) were examined from fifteen waterholes in February, May and September 2006. N. erebi diets reflected strong ‘boom and bust’ patterns of food consumption, with high concentrations of benthic (non-filamentous) algae during boom (flow) times, moving to higher concentrations of filamentous algae and detritus during bust (no flow) periods. M. ambigua diets were primarily dominated by aquatic insects in all sampling periods. Although there was no clear ‘boom to bust’ pattern in relation to flow, M. ambigua secondary prey consumption revealed a compensatory switch between high energy prey (crustaceans) during more productive periods with terrestrial insects during less productive periods. The ability of both species of fish to switch from high to low concentrations of food quality under a variable environmental background allows them to persist through both high productive and low productive periods. This interaction between native biota and variable ‘boom’ and ‘bust’ conditions, and how changes to the natural hydrology will affect it is an important consideration of any future water resource development plans.


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