INVESTIGADORES
ROSSIN Maria Alejandra
artículos
Título:
Parasite assemblages of Nemadactylus bergi
Autor/es:
ROSSIN M. ALEJANDRA; TIMI JUAN TOMÁS
Revista:
PARASITOLOGY RESEARCH
Editorial:
SPRINGER
Referencias:
Año: 2010 p. 1373 - 1379
ISSN:
0932-0113
Resumen:
The short-scale temporal repeatability in the
structure and composition of parasite communities of Nemadactylus
bergi were analyzed by comparing population and
infracommunity descriptors in five samples caught off Mar
del Plata, Argentina (38¨¬ 27¡Ç S, 57¨¬ 90¡Ç W) at intervals of
20 days. This is the first study aiming to detect relevant local
or short-term processes in an area where larval endohelminths
dominate the parasite assemblages and are expected
to provide predictability to the communities they belong. The
parasite fauna of this host species was composed by 18
species, 16 of them being endoparasites, among which larval
stages accounted for most of both the number of parasite
individuals found and the highest percentages of average
similarity among infracommunities. The structure of parasite
communities of N. bergi was, as predicted, repeatable across
samples at short spatial and temporal scales and, as expected,
this predictability was mainly provided by larval stages,
namely Corynosoma australe and Grillotia carvajalregorum.
These results imply that a single sample of N. bergi from this
locality will be enough to catch the structure and intrinsic
variability of their component communities in further studies
aiming to compare parasite assemblages at larger spatial
scales. These studies should, however, take into account the
heterogeneity in the size of fish among samples, which
proved to be an important confounding factor in comparisons
among samples by affecting their similarity.Nemadactylus
bergi were analyzed by comparing population and
infracommunity descriptors in five samples caught off Mar
del Plata, Argentina (38¨¬ 27¡Ç S, 57¨¬ 90¡Ç W) at intervals of
20 days. This is the first study aiming to detect relevant local
or short-term processes in an area where larval endohelminths
dominate the parasite assemblages and are expected
to provide predictability to the communities they belong. The
parasite fauna of this host species was composed by 18
species, 16 of them being endoparasites, among which larval
stages accounted for most of both the number of parasite
individuals found and the highest percentages of average
similarity among infracommunities. The structure of parasite
communities of N. bergi was, as predicted, repeatable across
samples at short spatial and temporal scales and, as expected,
this predictability was mainly provided by larval stages,
namely Corynosoma australe and Grillotia carvajalregorum.
These results imply that a single sample of N. bergi from this
locality will be enough to catch the structure and intrinsic
variability of their component communities in further studies
aiming to compare parasite assemblages at larger spatial
scales. These studies should, however, take into account the
heterogeneity in the size of fish among samples, which
proved to be an important confounding factor in comparisons
among samples by affecting their similarity.were analyzed by comparing population and
infracommunity descriptors in five samples caught off Mar
del Plata, Argentina (38¨¬ 27¡Ç S, 57¨¬ 90¡Ç W) at intervals of
20 days. This is the first study aiming to detect relevant local
or short-term processes in an area where larval endohelminths
dominate the parasite assemblages and are expected
to provide predictability to the communities they belong. The
parasite fauna of this host species was composed by 18
species, 16 of them being endoparasites, among which larval
stages accounted for most of both the number of parasite
individuals found and the highest percentages of average
similarity among infracommunities. The structure of parasite
communities of N. bergi was, as predicted, repeatable across
samples at short spatial and temporal scales and, as expected,
this predictability was mainly provided by larval stages,
namely Corynosoma australe and Grillotia carvajalregorum.
These results imply that a single sample of N. bergi from this
locality will be enough to catch the structure and intrinsic
variability of their component communities in further studies
aiming to compare parasite assemblages at larger spatial
scales. These studies should, however, take into account the
heterogeneity in the size of fish among samples, which
proved to be an important confounding factor in comparisons
among samples by affecting their similarity.¡Ç S, 57¨¬ 90¡Ç W) at intervals of
20 days. This is the first study aiming to detect relevant local
or short-term processes in an area where larval endohelminths
dominate the parasite assemblages and are expected
to provide predictability to the communities they belong. The
parasite fauna of this host species was composed by 18
species, 16 of them being endoparasites, among which larval
stages accounted for most of both the number of parasite
individuals found and the highest percentages of average
similarity among infracommunities. The structure of parasite
communities of N. bergi was, as predicted, repeatable across
samples at short spatial and temporal scales and, as expected,
this predictability was mainly provided by larval stages,
namely Corynosoma australe and Grillotia carvajalregorum.
These results imply that a single sample of N. bergi from this
locality will be enough to catch the structure and intrinsic
variability of their component communities in further studies
aiming to compare parasite assemblages at larger spatial
scales. These studies should, however, take into account the
heterogeneity in the size of fish among samples, which
proved to be an important confounding factor in comparisons
among samples by affecting their similarity.N. bergi was, as predicted, repeatable across
samples at short spatial and temporal scales and, as expected,
this predictability was mainly provided by larval stages,
namely Corynosoma australe and Grillotia carvajalregorum.
These results imply that a single sample of N. bergi from this
locality will be enough to catch the structure and intrinsic
variability of their component communities in further studies
aiming to compare parasite assemblages at larger spatial
scales. These studies should, however, take into account the
heterogeneity in the size of fish among samples, which
proved to be an important confounding factor in comparisons
among samples by affecting their similarity.Corynosoma australe and Grillotia carvajalregorum.
These results imply that a single sample of N. bergi from this
locality will be enough to catch the structure and intrinsic
variability of their component communities in further studies
aiming to compare parasite assemblages at larger spatial
scales. These studies should, however, take into account the
heterogeneity in the size of fish among samples, which
proved to be an important confounding factor in comparisons
among samples by affecting their similarity.N. bergi from this
locality will be enough to catch the structure and intrinsic
variability of their component communities in further studies
aiming to compare parasite assemblages at larger spatial
scales. These studies should, however, take into account the
heterogeneity in the size of fish among samples, which
proved to be an important confounding factor in comparisons
among samples by affecting their similarity.