Influence of confluent marine currents in an ecotonal region of the South-West Atlantic on the distribution of larval anisakids (Nematoda: Anisakidae)
Abstract Background In the marine environment, transitional zones between major water masses harbour high biodiversity, mostly due to their productivity and by containing representatives of species characteristic of adjacent communities. With the aim of assessing the value of larval Anisakis as zoog...
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ftdoajarticles:oai:doaj.org/article:8434a7b310ed4b9d82d187c6a67afbc0 2023-05-15T13:52:59+02:00 Influence of confluent marine currents in an ecotonal region of the South-West Atlantic on the distribution of larval anisakids (Nematoda: Anisakidae) Ana L Lanfranchi Paola E Braicovich Delfina M P Cantatore Manuel M Irigoitia Marisa D Farber Verónica Taglioretti Juan T Timi 2018-11-01T00:00:00Z https://doi.org/10.1186/s13071-018-3119-7 https://doaj.org/article/8434a7b310ed4b9d82d187c6a67afbc0 EN eng BMC http://link.springer.com/article/10.1186/s13071-018-3119-7 https://doaj.org/toc/1756-3305 doi:10.1186/s13071-018-3119-7 1756-3305 https://doaj.org/article/8434a7b310ed4b9d82d187c6a67afbc0 Parasites & Vectors, Vol 11, Iss 1, Pp 1-13 (2018) Anisakis pegreffii Anisakis berlandi Anisakis typica Zenopsis conchifer Zoogeographical indicators Infectious and parasitic diseases RC109-216 article 2018 ftdoajarticles https://doi.org/10.1186/s13071-018-3119-7 2022-12-31T09:33:36Z Abstract Background In the marine environment, transitional zones between major water masses harbour high biodiversity, mostly due to their productivity and by containing representatives of species characteristic of adjacent communities. With the aim of assessing the value of larval Anisakis as zoogeographical indicators in a transitional zone between subtropical and sub-Antarctic marine currents, larvae obtained from Zenopsis conchifer were genetically identified. Larvae from Pagrus pagrus and Merluccius hubbsi from two adjacent zoogeographical provinces were also sequenced. Results Four species were genetically identified in the whole sample, including Anisakis typica, A. pegreffii, A. berlandi and a probably new species related to A. paggiae. Anisakis typica and A. pegreffii were identified as indicators of tropical/subtropical and sub-Antarctic waters, respectively, and their presence evidenced the transitional conditions of the region. Multivariate analyses on prevalence and mean abundance of Anisakis spp. of 18 samples represented by 9 fish species caught south of 35°S determined that host trophic level and locality of capture were the main drivers of the distribution of parasites across zoogeographical units in the South-West Atlantic. Conclusions Most samples followed a clear zoogeographical pattern, but the sample of Z. conchifer, composed mostly of A. typica, was an exception. This finding suggests that population parameters of A. typica and A. pegreffii could differ enough to be considered as a surrogates of the identity of larvae parasitizing a given host population and, therefore, a step forward the validation of the use of larval Anisakis as biological indicators for studies on host zoogeography. Article in Journal/Newspaper Antarc* Antarctic Directory of Open Access Journals: DOAJ Articles Antarctic Parasites & Vectors 11 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Anisakis pegreffii Anisakis berlandi Anisakis typica Zenopsis conchifer Zoogeographical indicators Infectious and parasitic diseases RC109-216 |
spellingShingle |
Anisakis pegreffii Anisakis berlandi Anisakis typica Zenopsis conchifer Zoogeographical indicators Infectious and parasitic diseases RC109-216 Ana L Lanfranchi Paola E Braicovich Delfina M P Cantatore Manuel M Irigoitia Marisa D Farber Verónica Taglioretti Juan T Timi Influence of confluent marine currents in an ecotonal region of the South-West Atlantic on the distribution of larval anisakids (Nematoda: Anisakidae) |
topic_facet |
Anisakis pegreffii Anisakis berlandi Anisakis typica Zenopsis conchifer Zoogeographical indicators Infectious and parasitic diseases RC109-216 |
description |
Abstract Background In the marine environment, transitional zones between major water masses harbour high biodiversity, mostly due to their productivity and by containing representatives of species characteristic of adjacent communities. With the aim of assessing the value of larval Anisakis as zoogeographical indicators in a transitional zone between subtropical and sub-Antarctic marine currents, larvae obtained from Zenopsis conchifer were genetically identified. Larvae from Pagrus pagrus and Merluccius hubbsi from two adjacent zoogeographical provinces were also sequenced. Results Four species were genetically identified in the whole sample, including Anisakis typica, A. pegreffii, A. berlandi and a probably new species related to A. paggiae. Anisakis typica and A. pegreffii were identified as indicators of tropical/subtropical and sub-Antarctic waters, respectively, and their presence evidenced the transitional conditions of the region. Multivariate analyses on prevalence and mean abundance of Anisakis spp. of 18 samples represented by 9 fish species caught south of 35°S determined that host trophic level and locality of capture were the main drivers of the distribution of parasites across zoogeographical units in the South-West Atlantic. Conclusions Most samples followed a clear zoogeographical pattern, but the sample of Z. conchifer, composed mostly of A. typica, was an exception. This finding suggests that population parameters of A. typica and A. pegreffii could differ enough to be considered as a surrogates of the identity of larvae parasitizing a given host population and, therefore, a step forward the validation of the use of larval Anisakis as biological indicators for studies on host zoogeography. |
format |
Article in Journal/Newspaper |
author |
Ana L Lanfranchi Paola E Braicovich Delfina M P Cantatore Manuel M Irigoitia Marisa D Farber Verónica Taglioretti Juan T Timi |
author_facet |
Ana L Lanfranchi Paola E Braicovich Delfina M P Cantatore Manuel M Irigoitia Marisa D Farber Verónica Taglioretti Juan T Timi |
author_sort |
Ana L Lanfranchi |
title |
Influence of confluent marine currents in an ecotonal region of the South-West Atlantic on the distribution of larval anisakids (Nematoda: Anisakidae) |
title_short |
Influence of confluent marine currents in an ecotonal region of the South-West Atlantic on the distribution of larval anisakids (Nematoda: Anisakidae) |
title_full |
Influence of confluent marine currents in an ecotonal region of the South-West Atlantic on the distribution of larval anisakids (Nematoda: Anisakidae) |
title_fullStr |
Influence of confluent marine currents in an ecotonal region of the South-West Atlantic on the distribution of larval anisakids (Nematoda: Anisakidae) |
title_full_unstemmed |
Influence of confluent marine currents in an ecotonal region of the South-West Atlantic on the distribution of larval anisakids (Nematoda: Anisakidae) |
title_sort |
influence of confluent marine currents in an ecotonal region of the south-west atlantic on the distribution of larval anisakids (nematoda: anisakidae) |
publisher |
BMC |
publishDate |
2018 |
url |
https://doi.org/10.1186/s13071-018-3119-7 https://doaj.org/article/8434a7b310ed4b9d82d187c6a67afbc0 |
geographic |
Antarctic |
geographic_facet |
Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Parasites & Vectors, Vol 11, Iss 1, Pp 1-13 (2018) |
op_relation |
http://link.springer.com/article/10.1186/s13071-018-3119-7 https://doaj.org/toc/1756-3305 doi:10.1186/s13071-018-3119-7 1756-3305 https://doaj.org/article/8434a7b310ed4b9d82d187c6a67afbc0 |
op_doi |
https://doi.org/10.1186/s13071-018-3119-7 |
container_title |
Parasites & Vectors |
container_volume |
11 |
container_issue |
1 |
_version_ |
1766257943454416896 |