scholarly journals Gasterosteus aculeatus Linnaeus, 1758, a new host fish for the endangered Margaritifera auricularia (Spengler, 1793) (Unionoida: Margaritiferidae)

2018 ◽  
Author(s):  
J Soler ◽  
C Boisneau ◽  
K M Wantzen ◽  
R Araujo
Keyword(s):  
Gasterosteus Aculeatus ◽  
Host Fish ◽  
New Host ◽  
Margaritifera Auricularia

Host mortality and variability in epizootics of Schistocephalus solidus infecting the threespine stickleback, Gasterosteus aculeatus

Parasitology ◽  
2010 ◽  
Vol 137 (11) ◽  
pp. 1681-1686 ◽  
Author(s):  
D. C. HEINS ◽  
E. L. BIRDEN ◽  
J. A. BAKER
Keyword(s):  
Gasterosteus Aculeatus ◽  
Infected Fish ◽  
Threespine Stickleback ◽  
Intensity Of Infection ◽  
Host Fish ◽  
Schistocephalus Solidus ◽  
Second Intermediate Host ◽  
Host Mortality ◽  
Abiotic And Biotic Factors ◽  
Host Behaviour

SUMMARYAn analysis of the metrics of Schistocephalus solidus infection of the threespine stickleback, Gasterosteus aculeatus, in Walby Lake, Alaska, showed that an epizootic ended between 1996 and 1998 and another occurred between 1998 and 2003. The end of the first epizootic was associated with a crash in population size of the stickleback, which serves as the second intermediate host. The likely cause of the end of that epizootic is mass mortality of host fish over winter in 1996–1997. The deleterious impact of the parasite on host reproduction and increased host predation associated with parasitic manipulation of host behaviour and morphology to facilitate transmission might also have played a role, along with unknown environmental factors acting on heavily infected fish or fish in poor condition. The second epizootic was linked to relatively high levels of prevalence and mean intensity of infection, but parasite:host mass ratios were quite low at the peak and there were no apparent mass deaths of the host. A number of abiotic and biotic factors are likely to interact to contribute to the occurrence of epizootics in S. solidus, which appear to be unstable and variable. Epizootics appear to depend on particular and, at times, rare sets of circumstances.

scholarly journals The three-spined stickleback-Schistocephalus solidussystem: an experimental model for investigating host-parasite interactions in fish

Parasitology ◽  
2009 ◽  
Vol 137 (3) ◽  
pp. 411-424 ◽  
Author(s):  
I. BARBER ◽  
J. P. SCHARSACK
Keyword(s):  
Immune Responses ◽  
Gasterosteus Aculeatus ◽  
Laboratory Model ◽  
Host Fish ◽  
Schistocephalus Solidus ◽  
Host Parasite Interactions ◽  
Experimental Laboratory ◽  
Host Parasite ◽  
Host Behaviour

SUMMARYPlerocercoids of the pseudophyllidean cestodeSchistocephalus solidusinfect the three-spined sticklebackGasterosteus aculeatus, with important consequences for the biology of host fish. Techniques for culturing the parasitein vitroand generating infective stages that can be used to infect sticklebacks experimentally have been developed, and the system is increasingly used as a laboratory model for investigating aspects of host-parasite interactions. Recent experimental laboratory studies have focused on the immune responses of hosts to infection, the consequences of infection for the growth and reproductive development of host fish and the effects of infection on host behaviour. Here we introduce the host and the parasite, review the major findings of these recent experimental infection studies and identify further aspects of host parasite interactions that might be investigated using the system.

scholarly journals New host records and a checklist of fishes infected with Austrodiplostomum compactum (Digenea: Diplostomidae) in Brazil

2013 ◽  
Vol 22 (4) ◽  
pp. 511-518 ◽  
Author(s):  
Igor Paiva Ramos ◽  
Lidiane Franceschini ◽  
Aline Cristina Zago ◽  
Érica de Oliveira Penha Zica ◽  
Alison Carlos Wunderlich ◽  
...  
Keyword(s):  
Fish Species ◽  
Native Species ◽  
Host Fish ◽  
New Host ◽  
Paulo State ◽  
Second Intermediate Host ◽  
New Hosts ◽  
Iheringichthys Labrosus ◽  
New Host Records ◽  
Hoplosternum Littorale

This study reports the infection of fishes byAustrodiplostomum compactum metacercariae in the Chavantes reservoir, medium Paranapanema River, municipality of Ipaussu, São Paulo State, Brazil. Twenty-three fish species were analysed, and 13 were infected with A. compactum metacercariae (56.5%) in their eyes. The following six fish species are new hosts for this metacercaria:Crenicichla haroldoi (1/1), Eigenmannia trilineata (11/6), Hoplosternum littorale(11/1), Iheringichthys labrosus (17/2),Leporinus amblyrhynchus (11/1), and Piaractus mesopotamicus (3/1). These new species increase the number of Brazilian fish species infected with this parasite to 36. Based on these findings, we hypothesise that the metacercariae larval stage of the parasite has a low specificity for the second intermediate host (fish). The majority of fish species infected in Brazil belong to the Loricariidae and Cichlidae families. For the fish species with higher mean abundances in Brazil, six are non-native species, and currently, Plagioscion squamosissimus has the highest mean abundance. The majority of fish species infected with A. compactum in Brazil are concentrated in the Paraná basin, although this may be related to the distribution of researchers.

Digenetic trematodes from Newfoundland, Canada. 1. Three species from Gasterosteus aculeatus Linnaeus, 1758

1969 ◽  
Vol 47 (5) ◽  
pp. 793-794
Author(s):  
George Hanek ◽  
William Threlfall
Keyword(s):  
North America ◽  
Gasterosteus Aculeatus ◽  
New Host ◽  
Digenetic Trematodes ◽  
New Host Records

Three species of digenetic trematodes are recorded from the three-spined stickleback, Gasterosteus aculeatus Linnaeus, 1758, namely Podocotyle atomon (Rudolphi, 1802), Brachyphallus crenatus (Rudolphi, 1802), and Lecithaster gibbosus (Rudolphi, 1802). The latter two species are new host records for North America.

The taxonomy of the monogenetic trematode Plectanocotyle gurnardi (v. Ben. & Hesse)

Parasitology ◽  
1941 ◽  
Vol 33 (4) ◽  
pp. 431-432 ◽  
Author(s):  
J. Llewellyn
Keyword(s):  
Host Fish ◽  
New Host

Specimens of Plectanocotyle gurnardi were obtained by the writer from the gills of Trigla cuculus L. and T. gurnardus L. during trawling operations at the Irish Atlantic Slope fishing grounds in August 1938 and July 1939. One specimen of Plectanocotyle gurnardi was collected from a Trigla gurnardus and seven specimens of the same parasite from eight specimens of T. cuculus, the greatest degree of infestation encountered being 3 parasites per host fish. Plectanocotyle gurnardi has been recorded previously, under one or other of the synonyms listed above, from Trigla gurnardus by van Beneden & Hesse (1863), T. Scott (1901, 1905), A. Scott (1904), Lebour (1908), and Little (1929); from T. lucerna L. by A. Scott & Little; and from Trigla ‘sp.’ by Monticelli (1899). It will be noted that the present records of the parasite are from its usual host T. gurnardus and from a new host T. cuculus.

Digenetic trematodes from Newfoundland, Canada. 2. Two species from Gasterosteus aculeatus Linnaeus, 1758

1969 ◽  
Vol 47 (5) ◽  
pp. 1086-1087
Author(s):  
George Hanek ◽  
William Threlfall
Keyword(s):  
Gasterosteus Aculeatus ◽  
Threespine Stickleback ◽  
New Host ◽  
Digenetic Trematodes ◽  
First Time

Crepidostomum cooperi Hopkins, 1931 and Derogenes varicus (Mueller, 1784) are recorded for the first time from Newfoundland. The threespine stickleback is a new host for both parasites.

Host specificity in Schistocephalus solidus

Parasitology ◽  
1966 ◽  
Vol 56 (4) ◽  
pp. 657-664 ◽  
Author(s):  
Trond Bråten
Keyword(s):  
Host Specificity ◽  
Salmo Trutta ◽  
Gasterosteus Aculeatus ◽  
Perca Fluviatilis ◽  
Body Cavity ◽  
The Body ◽  
Pungitius Pungitius ◽  
Electron Microscopic ◽  
New Host ◽  
Schistocephalus Solidus

Investigations on the host specificity of plerocercoids of Schistocephalus solidus were carried out using the technique of surgically transferring plerocercoids from the body cavity of Gasterosteus aculeatus to various other fish. Plerocercoids survived in all cases when transferred from G. aculeatus to other G. aculeatus; when tranferred to Pungitius pungitius the worms survived for long periods but failed to grow. Plerocercoids transferred to Coitus gobio, Nemacheilus barbatula, Phoxinus phoxinus, Salmo trutta, Coregonus clupeoides, Perca fluviatilis, Rutilus rutilus and Esox lucius always died within 2–10 days after being transferred. Electron-microscopic examinations of the tegument of plerocercoids transferred to new hosts showed: in G. aculeatus normal appearance throughout the experiment; in P. pungitius degeneration of the microtrichs after 6 days; and in S. trutta complete destruction of the tegument in 7 days.Plerocercoids of the genus Diphyllobothrium survived the transfer from Gasterosteus aculeatus to Salmo trutta and continued to grow in their new host.Infection of fish with S. solidus by feeding infected copepods and by aspetic injection of procercoids into the body cavity of the fish were also tried. Gasterosteus aculeatus became infected using both these methods but it was not possible to infect Pungitius pungitius.

scholarly journals Does the anaesthetic infl uence behavioural transmission of the monogenean Gyrodactylus gasterostei Gläser, 1974 off the host?

2015 ◽  
Vol 52 (2) ◽  
pp. 144-147 ◽  
Author(s):  
M. I. Grano-Maldonado ◽  
C. Palaiokostas
Keyword(s):  
Host Species ◽  
Laboratory Experiments ◽  
Gasterosteus Aculeatus ◽  
Relative Importance ◽  
New Host ◽  
New Hosts ◽  
Dead Fish ◽  
Transmission Factors

Summary The aim of this study was to investigate the use of the anaesthetic 2-phenoxyethanol on the transmission factors of gyrodactylid and to ascertain how this may affect in the colonisation of new hosts using the Gyrodactylus gasterostei Gläser, 1974 - Gasterosteus aculeatus L. model which is a simple and successful system to examine aspects of transmission of parasites from live and dead fish. Laboratory experiments include determining the maturity (presence of male copulate organ) and reproductive (presence of daughter) status of transmitting worms, in order to consider the factors that influence parasite option to migrate to a new individual of the same host species. This study demonstrates that parasites with a Male Copulate Organ (MCO) present are more likely to abandon the host and attempt a host transfer. The use of the anaesthetic 2-phenoxyethanol does not affect transmission of gyrodactylids which leave the host to colonise a new host. Finally, the use of other anaesthetic although its relative importance with respect to transmission remains uncertain.

scholarly journals Oxygen consumption rate in Gasterosteus aculeatus-Schistocephalus solidus system from a non-migratory naturally infected population

2017 ◽  
Author(s):  
Tarallo Andrea ◽  
D’Onofrio Giuseppe ◽  
Agnisola Claudio
Keyword(s):  
Oxygen Consumption ◽  
Oxygen Consumption Rate ◽  
Gasterosteus Aculeatus ◽  
Consumption Rate ◽  
Host Fish ◽  
Schistocephalus Solidus ◽  
Rate Of Oxygen Consumption ◽  
Migratory Population ◽  
Host Parasite ◽  
The Impact

AbstractThe three spine stickleback Gasterosteus aculeatus is a specific obligatory intermediate host for the cestode worm Schistocephalus solidus. This system is commonly used to investigate the host-parasite interaction in fishes. Despite the interesting attempts which have been made to quantify the impact of the parasite over the respiration rate of the host fish, none of the previous reports took in consideration that stickleback is diversified in different ecotypes according to its ability to made reproductive migration, from and to the sea. Here the oxygen consumption rate in specimens of three-spine stickleback collected from a non-migratory population was quantified with the aim to test if the S. solidus infection drives a change in the oxygen consumption level of the host fish. The results showed that the infected fishes have a higher rate of oxygen consumption compared with the uninfected one. The differences were due to a direct effect of the parasite, not merely to its contribution to the whole oxygen consumption rate. The data were compared with previous reports, showing that the non-migratory population was characterized by a different level of oxygen consumption rate. The differences were interpreted in terms of divergence in physiological adaptations which had to be appeared in different populations.

Parasites of the Threespine Stickleback (Gasterosteus aculeatus) in Newfoundland and Labrador

1970 ◽  
Vol 27 (5) ◽  
pp. 901-907 ◽  
Author(s):  
George Hanek ◽  
William Threlfall
Keyword(s):  
North America ◽  
Newfoundland And Labrador ◽  
Gasterosteus Aculeatus ◽  
New Records ◽  
Threespine Stickleback ◽  
New Host ◽  
Parasitic Copepods ◽  
Threespine Sticklebacks ◽  
New Host Records

Fifteen genera of helminths (19 species) and two genera of parasitic copepods (2 species) were recovered from 375 threespine sticklebacks (Gasterosteus aculeatus Linnaeus, 1758) taken in 10 sampling areas in Newfoundland and Labrador during 1968 and 1969. Two new host records and two new records for North America are included.

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