Proteomic Studies on the Swim Bladder of the European Eel (Anguilla anguilla )

PROTEOMICS ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 1700445 ◽  
Author(s):  
Fernando J. Sialana ◽  
Gabriel Schneebauer ◽  
Ana Paunkov ◽  
Bernd Pelster ◽  
Gert Lubec
Keyword(s):  
Anguilla Anguilla ◽  
European Eel ◽  
Swim Bladder

Introduced parasite Anguillicola crassus infection significantly impedes swim bladder function in the European eel Anguilla anguilla (L.)

2014 ◽  
Vol 37 (10) ◽  
pp. 921-924 ◽  
Author(s):  
J Barry ◽  
J McLeish ◽  
J A Dodd ◽  
J F Turnbull ◽  
P Boylan ◽  
...  
Keyword(s):  
Anguilla Anguilla ◽  
Bladder Function ◽  
European Eel ◽  
Swim Bladder ◽  
Anguillicola Crassus

Regulation ofAnguillicola crassus(Nematoda) infrapopulations in their definitive host, the European eel,Anguilla anguilla

Parasitology ◽  
2008 ◽  
Vol 135 (14) ◽  
pp. 1707-1716 ◽  
Author(s):  
G. FAZIO ◽  
P. SASAL ◽  
C. DA SILVA ◽  
B. FUMET ◽  
J. BOISSIER ◽  
...  
Keyword(s):  
Developmental Stages ◽  
Anguilla Anguilla ◽  
The Body ◽  
European Eel ◽  
Swim Bladder ◽  
Experimental Conditions ◽  
Larval Stages ◽  
Resource Limited ◽  
Third Stage ◽  
Opposite Sex

SUMMARYThe parasitic nematodeAnguillicola crassuswas recently introduced into populations of the European eel,Anguilla anguilla. We investigated, under experimental conditions, the regulation ofA. crassusinfrapopulations. We tested the effects of (1) the resource-limited habitat of the parasite and (2) the coexistence of several developmental stages in its niche (the swim-bladder) on the composition of the infrapopulations. The results revealed that the respective effects of these factors differed substantially during the course of the infection. Third-stage larvae (L3s) establishment would not be constrained by the size of the swim-bladder. Their moult to fourth-stage larvae (L4s) would be accelerated as the number of L3s increased. The moulting time of L4s to adults would be reduced by males and would be constrained by the size of the swim-bladder. However, the moult of L4s to adults and their further development would be synchronized with those of the opposite sex. At the time of mating, the number of males and the body weight of adults would depend on the size of the swim-bladder. Soon after the laying of eggs, the developmental constraint on the late L3s would decrease. When adults die, constraints would cease and late larval stages would moult to become adults.

Metazoan Parasites and Health State of European Eel, Anguilla Anguilla (Anguilliformes, Anguillidae), From Tonga Lake and El Mellah Lagoon in the Northeast of Algeria

2018 ◽  
Vol 52 (4) ◽  
pp. 279-288 ◽  
Author(s):  
F. Bakaria ◽  
S. Belhaoues ◽  
N. Djebbari ◽  
M. Tahri ◽  
I. Ladjama ◽  
...  
Keyword(s):  
Brackish Water ◽  
Parasite Species ◽  
Anguilla Anguilla ◽  
European Eel ◽  
Health State ◽  
Component Community ◽  
Metazoan Parasites ◽  
Parasite Communities ◽  
High Dominance ◽  
Argulus Foliaceus

Abstract The aim of the study was to examine metazoans parasite communities of European eels (Anguilla anguilla) in freshwater (Tonga Lake) and brackish water (El Mellah lagoon) in the northeast of Algeria. Six parasite taxa were collected: one monogenean, Pseudodactylogyrus sp.; two crustaceans, Ergasilus sp. and Argulus foliaceus; two nematodes, Cucullanus sp. and Anguillicola crassus; one cestode, Bothriocephalus claviceps. Th e most prevalent parasite taxa in freshwater were Pseudodactylogyrus sp., A. crassus and Bothriocephalus claviceps; whereas in the brackish water, eels were infected mainly with A. crassus. Th e characteristics of the parasite component community structure revealed low parasite species diversity and high dominance values in eels from the two localities. Both communities were dominated by a single parasite species: Tonga eels by the monogenean Pseudodactylogyrus sp. and El Mellah lagoon eels by the nematode A. crassus, verified by high Berger-Parker dominance values of 0.76 and 0.87 respectively.

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