Richness and diversity of helminth species in eels from a hypersaline coastal lagoon, Mar Menor, south-east Spain

2014 ◽  
Vol 89 (3) ◽  
pp. 345-351
Author(s):  
E. Mayo-Hernández ◽  
J. Peñalver ◽  
A. García-Ayala ◽  
E. Serrano ◽  
P. Muñoz ◽  
...  
Keyword(s):  
Coastal Lagoon ◽  
Coastal Lagoons ◽  
Anguilla Anguilla ◽  
Marine Species ◽  
Dominant Group ◽  
Component Community ◽  
Mar Menor ◽  
Total Prevalence ◽  
Composition And Structure ◽  
Hypersaline Coastal Lagoon

AbstractThe composition and diversity of parasite communities and intestinal components, as well as infra-community structure, were assessed in eels Anguilla anguilla, from Mar Menor, a permanent Mediterranean hypersaline coastal lagoon. Data were used to determine whether this helminth community differs in composition and structure from that of eels in lagoons with lower salinity regimes and higher freshwater inputs. A total prevalence of 93% was detected. Specifically, parasites were identified as Deropristis inflata, Bucephalus anguillae, Contracaecum sp., Anguillicoloides crassus and two plerocercoid larvae belonging to the order Proteocephalidae, the marine species representing 91% of the isolated helminths. In the total community, digenetic trematodes were the dominant group of helminths, and D. inflata, an eel specialist, dominated both the component community and the infra-community. Richness and diversity were low but similar to those reported in other saline lagoons, and maximum species per eel did not exceed four. At the infra-community level, higher abundance than in other brackish or marine Mediterranean environments was detected. The findings provide further evidence of the similarity in composition and structure of helminth communities in eels from various Mediterranean coastal lagoons. Moreover, salinity-dependent specificities are well supported and reflect the life history of individual eels.

Composition and structure of helminth communities in eels Anguilla anguilla from Italian coastal lagoons

1997 ◽  
Vol 71 (1) ◽  
pp. 35-40 ◽  
Author(s):  
C.R. Kennedy ◽  
D. Di Cave ◽  
F. Berrilli ◽  
P. Orecchia
Keyword(s):  
Coastal Lagoons ◽  
Anguilla Anguilla ◽  
Structural Similarity ◽  
Helminth Species ◽  
Community Level ◽  
Intestinal Helminth ◽  
Helminth Community ◽  
Component Community ◽  
Helminth Communities ◽  
Composition And Structure

AbstractThe composition and diversity of total and intestinal helminth component and infracommunities were determined in eels Anguilla anguilla from four shallow coastal lagoons near Rome. The lagoons differed principally in respect of their salinity. Only Lake Burano still received an input of freshwater, and both freshwater and marine helminth species were found in eels. In the other three lagoons all helminth species were marine or euryhaline and communities were dominated by digeneans. At component community level these three lagoons were far more similar to each other than to Lake Burano, but this distinction almost disappeared at infracommunity level. Species richness and diversity declined with increasing salinity at component community level but not at infracommunity level. Despite the changes and differences in helminth community composition, intestinal helminth infracommunity structure was very similar in all four lagoons and to that in eels from freshwater localities in Britain. The findings thus provide further and unexpected support for the view that some factor(s) other than supply side ones must be operating to produce the fundamental structural similarity in helminth communities in eels.

scholarly journals Helminth communities in eels Anguilla anguilla from Adriatic coastal lagoons in Italy

2001 ◽  
Vol 75 (1) ◽  
pp. 7-13 ◽  
Author(s):  
D. Di Cave ◽  
F. Berrilli ◽  
C. De Liberato ◽  
P. Orecchia ◽  
C.R. Kennedy
Keyword(s):  
Coastal Lagoons ◽  
Anguilla Anguilla ◽  
Marine Species ◽  
Intestinal Helminth ◽  
Helminth Communities ◽  
Composition And Structure ◽  
Order Of Magnitude ◽  
Adriatic Coast ◽  
Specialist Species ◽  
High Degree

The composition and diversity of the total and intestinal component and infra-communities were determined in eels Anguilla anguilla from three shallow lagoons on the Adriatic coast of Italy to determine whether the helminth communities would differ in composition and structure from those in eels from lagoons on the Tyrrhenian coast. The lagoons differed in respect of their management regimes and the extent of freshwater influx. Both freshwater and marine species of helminths were found in the eels in all three lagoons, but the freshwater component was richer in Valle Figheri. A suite of three digenean eel specialist species occurred in all three lagoons, of which any two members dominated each community. This conferred a high degree of similarity between the communities of the three lagoons. The same three species also dominated helminth communities in eels in lagoons along the Tyrrhenian coast of Italy, and compositional similarity levels were similar within and between western and eastern groups. Species richness was higher in the component communities of the eels of the Adriatic lagoons when compared to the Tyrrhenian ones, but diversity and dominance indices were of a similar order of magnitude and range. Intestinal helminth communities were richer and more diverse in two of the Adriatic lagoons because the proportion of eels with zero or one helminth species was, unusually, in the minority. It was nevertheless concluded that infracommunity structure was similar in eels from both western and eastern lagoons and that the hypothesis that it would differ in Adriatic lagoons could not be supported. The findings provide further evidence of the similarity in composition and structure of helminth communities in eels from coastal lagoons throughout Europe.

scholarly journals Fish assemblages in different littoral habitat types of a hypersaline coastal lagoon (Mar Menor, Mediterranean Sea)

2013 ◽  
Vol 80 (1) ◽  
pp. 104-116 ◽  
Author(s):  
David Verdiell-Cubedo ◽  
Mar Torralva ◽  
Ana Ruiz-Navarro ◽  
Francisco J. Oliva-Paterna
Keyword(s):  
Mediterranean Sea ◽  
Coastal Lagoon ◽  
Fish Assemblages ◽  
Habitat Types ◽  
Littoral Habitat ◽  
Mar Menor ◽  
Hypersaline Coastal Lagoon

Assessing the nursery role for marine fish species in a hypersaline coastal lagoon (Mar Menor, Mediterranean Sea)

2013 ◽  
Vol 9 (8) ◽  
pp. 739-748 ◽  
Author(s):  
David Verdiell-Cubedo ◽  
Francisco J. Oliva-Paterna ◽  
Ana Ruiz-Navarro ◽  
Mar Torralva
Keyword(s):  
Mediterranean Sea ◽  
Marine Fish ◽  
Fish Species ◽  
Coastal Lagoon ◽  
Marine Fish Species ◽  
Mar Menor ◽  
Hypersaline Coastal Lagoon

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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