Stocks and seasonal migrations of the flounder <i>Xystreurys rasile</i> as indicated by its parasites

Alarcos, Ana Julia; Timi, Juan T.

doi:10.1111/jfb.12190

Cited by 13 publications

(9 citation statements)

References 45 publications

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“…The presence of a single stock of C. guatucupa in southern Uruguay and northern Buenos Aires province, as demonstrated by parasites (Timi et al 2005), agreed with a previous study by Díaz de Astarloa and Bolasina (1992) based on meristic and morphometric comparisons of hosts. In a similar way, compatible results between parasitological evidence and those derived from other methodologies have been obtained in stock studies of anchovies, hakes and flounders (Timi, 2003; Sardella and Timi, 2004; Alarcos and Timi, 2013).…”

Section: Validation Of the Methodology: Strengths And Weaknessessupporting

confidence: 77%

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Marine parasites as biological tags in South American Atlantic waters, current status and perspectives

Cantatore

Timi

2014

Parasitology

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Many marine fisheries in South American Atlantic coasts (SAAC) are threatened by overfishing and under serious risk of collapsing. The SAAC comprises a diversity of environments, possesses a complex oceanography and harbours a vast biodiversity that provide an enormous potential for using parasites as biological tags for fish stock delineation, a prerequisite for the implementation of control and management plans. Here, their use in the SAAC is reviewed. Main evidence is derived from northern Argentine waters, where fish parasite assemblages are dominated by larval helminth species that share a low specificity, long persistence and trophic transmission, parasitizing almost indiscriminately all available fish species. The advantages and constraints of such a combination of characteristics are analysed and recommendations are given for future research. Shifting the focus from fish/parasite populations to communities allows expanding the concept of biological tags from local to regional scales, providing essential information to delineate ecosystem boundaries for host communities. This new concept arose as a powerful tool to help the implementation of ecosystem-based approaches to fisheries management, the new paradigm for fisheries science. Holistic approaches, including parasites as biological tags for stock delineation will render valuable information to help insure fisheries and marine ecosystems against further depletion and collapse.

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Section: Validation Of the Methodology: Strengths And Weaknessessupporting

confidence: 77%

“…Alarcos and Timi (2013), based also on the lack of differences between the parasite communities of samples of Xystreurys rasile , corroborated the seasonal migration of this species along north Argentine coasts suggested by previous ichthyological studies.…”

Section: Current Status Of the Use Of Parasites As Biological Tags Insupporting

confidence: 74%

Marine parasites as biological tags in South American Atlantic waters, current status and perspectives

Cantatore

Timi

2014

Parasitology

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“…There are studies that indicate segregation of feeding area migratory behaviour in other fish species. Alarcos and Timi (2013) showed different populations of flounders (Xystreurys rasile) habiting at least 2 different feeding areas in Argentine Sea and Aranda et al (2013) showed that Atlantic Bluefin tuna (Thunnus thynnus) mainly feed in the North Atlantic but minor proportion of the population feed in the Mediterranean. indicates salmon being distributed uniformly across all three feeding areas before ascending the river to spawn; strong connectivity (value of 0) indicates all individuals occupying only one feeding area.…”

Section: Figurementioning

confidence: 99%

Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales

Torniainen

Vuorinen²,

Jones

et al. 2013

ICES Journal of Marine Science

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Torniainen, J., Vuorinen, P. J., Jones, R. I., Keinänen, M., Palm, S., Vuori, K. A. M., and Kiljunen, M. 2014. Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales. – ICES Journal of Marine Science, 71: 336–344. Migratory connectivity refers to the extent to which individuals of a migratory population behave in unison, and has significant consequences for the ecology, evolution and conservation of migratory animals. We made a retrospective assessment of the migratory connectivity of River Simojoki and River Kymijoki populations of Atlantic salmon Salmo salar L. by using stable isotope analysis of archived scales to identify the final feeding areas used before ascending rivers for spawning. We also tested differences in migratory connectivity between wild and hatchery-reared salmon and compared Carlin-tag recoveries with salmon scale stable isotope analysis as methods for studying salmon migrations. Stable isotope (δ13C, δ15N) values from the last growth region of scales from salmon caught ascending their natal rivers were compared via discriminant analysis with those from scales of salmon caught in different Baltic Sea areas during 1989–2011. Most River Simojoki salmon had likely fed in the Baltic Proper (mean ± SD for ascending fish probability 0.59 ± 0.32) with secondary likely feeding areas in the Bothnian Sea (0.21 ± 0.26) and the Gulf of Finland (0.20 ± 0.27). Most River Kymijoki salmon had likely fed in the Gulf of Finland (0.71 ± 0.42) with the Baltic Proper (0.29 ± 0.41) a secondary feeding area. The results did not indicate the Bothnian Sea to be an important feeding area. The two salmon populations showed weak migratory connectivity and rather fixed areal preference throughout the record irrespective of wild or stocked origin. Although the results from the scale stable isotope analyses were broadly consistent with previously reported Carlin-tag recoveries, we argue that the stable isotope approach offers several important advantages in the study of salmon migratory behaviour.

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“… Xystreurys rasile ( Actinopterygii : Paralichthyidae ); marine; body cavity, mesentery; metacestode; WTSA ; Argentina, Brazil ( Menoret and Ivanov 2009b ; Alarcos and Timi 2012 , 2013 ; Fonseca et al 2012 ).…”

Section: Parasite-host Listmentioning

confidence: 99%

“… Xystreurys rasile ( Actinopterygii : Paralichthyidae ); marine; intestine, mesentery; metacestode; WTSA ; Argentina ( Alarcos and Timi 2013 ).…”

Section: Parasite-host Listmentioning

confidence: 99%

Annotated checklist of fish cestodes from South America

Alves¹,

Chambrier²,

Scholz³

et al. 2017

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An exhaustive literature search supplemented by a critical examination of records made it possible to present an annotated checklist of tapeworms (Cestoda) that, as adults or larvae (metacestodes), parasitize freshwater, brackish water and marine fishes, i.e. cartilaginous and bony fishes, in South America. The current knowledge of their species diversity, host associations and geographical distribution is reviewed. Taxonomic problems are discussed based on a critical evaluation of the literature and information on DNA sequences of individual taxa is provided to facilitate future taxonomic and phylogenetic studies. As expected, the current knowledge is quite uneven regarding the number of taxa and host-associations reported from the principal river basins and marine ecoregions. These differences may not only reflect the actual cestode richness but may also be due to the research effort that has been devoted to unravelling the diversity of these endoparasitic helminths in individual countries. A total of 297 valid species, 61 taxa identified to the generic level, in addition to unidentified cestodes, were recorded from 401 species of fish hosts. Among the recognized cestode orders, 13 have been recorded in South America, with the Onchoproteocephalidea displaying the highest species richness, representing c. 50% of all species diversity. The majority of records include teleost fish hosts (79%) that harbour larval and adult stages of cestodes, whereas stingrays (Myliobatiformes) exhibit the highest proportion of records (39%) among the elasmobranch hosts. Fish cestodes are ubiquitous in South America, being mostly recorded from the Warm Temperate Southeastern Pacific (WTSP; 31%) for marine hosts and the Amazon River basin (45%) for freshwater ones. The following problems were detected during the compilation of literary data: (i) unreliability of many records; (ii) poor taxonomic resolution, i.e. identification made only to the genus or even family level; (iii) doubtful host identification; Alves et al. / ZooKeys 650: 1-205 (2017) 2 and (iv) the absence of voucher specimens that would enable us to verify identification. It is thus strongly recommended to always deposit representative specimens in any type of studies, including faunal surveys and ecological studies. An analysis of the proportion of three basic types of studies, i.e. surveys, taxonomic and ecological papers, has shown a considerable increase of ecological studies over the last decade.

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Stocks and seasonal migrations of the flounder Xystreurys rasile as indicated by its parasites

Cited by 13 publications

References 45 publications

Marine parasites as biological tags in South American Atlantic waters, current status and perspectives

Marine parasites as biological tags in South American Atlantic waters, current status and perspectives

Migratory connectivity of two Baltic Sea salmon populations: retrospective analysis using stable isotopes of scales

Annotated checklist of fish cestodes from South America

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