Parasites as indicators of fish population structure at two different geographical scales in contrasting coastal environments of the south-western Atlantic

Levy, Eugenia; Canel, Delfina; Rossin, María Alejandra; Hernández‐Orts, Jesús S.; González‐Castro, Mariano; Timi, Juan T.

doi:10.1016/j.ecss.2019.106400

Cited by 15 publications

(13 citation statements)

References 54 publications

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“…These results are indicative of environmental filtering in the parasite facets of diversity, which conforms with previous evidence only reported for TD of parasite communities of fish populations (e.g. Levy et al, 2019).…”

Section: Discussionsupporting

confidence: 92%

Assembly rules of helminth parasite communities in grey mullets: combining components of diversity

Llopis‐Belenguer

Pavoine

Blasco‐Costa

et al. 2020

International Journal for Parasitology

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Organisms associate themselves in ecological communities. It has been widely debated whether these associations are explained by deterministic or, in contrast, random processes. The answer may vary depending on the level of an organisational scale (α, β and γ) and the facet of diversity considered: Taxonomic (TD), Functional (FD) and Phylogenetic (PD). Diversity at the sampling unit (i.e. host individual) is the α diversity; β diversity represents the extent of dissimilarity in diversity among sampling units (within a level of an organisational scale, β1; between levels of an organisational scale, β2); and the total diversity of a system is γ diversity. Thus, the combination of facets and levels of scale may be useful to disentangle the mechanisms driving the composition of a parasite community. Using helminth parasite TD, FD, and a Proxy of PD (PPD) of three species of grey mullets (Teleostei: Mugilidae) from the Mediterranean Sea, we show that random and deterministic processes of different nature explain the assemblage of parasite communities. The parasite community at a host individual (α) was invariably a random subset of the total diversity in the community for the three facets of diversity. At β1 level, TD was lower than expected by chance, whereas FD and PPD were random. At β2, diversity patterns suggested environmental filtering of the parasite assemblage: species, trait, and phylogenetic compositions of parasite communities seem to depend primarily on the species of host, but also on the locality and season. Our study shows that parasite communities are not totally understood if any of the components (i.e. facets and levels) of diversity is neglected.

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Section: Discussionsupporting

confidence: 92%

Assembly rules of helminth parasite communities in grey mullets: combining components of diversity

Llopis‐Belenguer

Pavoine

Blasco‐Costa

et al. 2020

International Journal for Parasitology

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“…In these instances, assessment of parasite loads and assemblages has been used to define host populations that constitute management units or stocks (reviewed in Mackenzie [2002] and Lester & Moore [2015] among others). The use of parasites as biological tags in lieu of direct tagging of harvested species was first reported in the 1930s (Dogiel, 1939; Herrington, 1939), and it persists (Braicovich et al., 2017; Levy et al., 2019; Santos et al., 2009).…”

Section: Overexploitationmentioning

confidence: 99%

Parasites as conservation tools

Gagne

Crooks

Craft

et al. 2021

Conservation Biology

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Parasite success typically depends on a close relationship with one or more hosts; therefore, attributes of parasitic infection have the potential to provide indirect details of host natural history and are biologically relevant to animal conservation. Characterization of parasite infections has been useful in delineating host populations and has served as a proxy for assessment of environmental quality. In other cases, the utility of parasites is just being explored, for example, as indicators of host connectivity. Innovative studies of parasite biology can provide information to manage major conservation threats by using parasite assemblage, prevalence, or genetic data to provide insights into the host. Overexploitation, habitat loss and fragmentation, invasive species, and climate change are major threats to animal conservation, and all of these can be informed by parasites.

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“…Atherinopsids are an important group of coastal fishes for artisanal and/or recreational fisheries, and have a great inter-population phenotypic plasticity, presenting morphological, morphometric and meristic differences along the marine coast [18][19][20][21] and in continental environments [22][23][24]. Due to its complexity, this group has been studied in different aspects of its biological cycle, but very few authors have established the identification of stocks of this group [14,18,25,26], and even less so in marine atherinids.…”

Section: Introductionmentioning

confidence: 99%

“…Studies show how the otoliths of this species change during growth, using morphology and geometric morphometry [36,37]. Levy et al [26], using the parasitic community of O. argentinenesis specimens caught in the Mar del Plata area (38 • 02 S, 57 • 31 W) and in the San Matías Gulf (40 • 50 S, 64 • 50 W), found that the evaluated individuals belonged to two different stocks. However, little is known about the stock spatial structure of these species in the rest of their distribution in the Argentinian Sea, where there are important fisheries for this resource; both in the coastal province of Buenos Aires and in northern Patagonia [34].…”

Section: Introductionmentioning

confidence: 99%

Unravelling Stock Spatial Structure of Silverside Odontesthes argentinensis (Valenciennes, 1835) from the North Argentinian Coast by Otoliths Shape Analysis

Morawicki

Solimano

Volpedo

2022

Fishes

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The marine silverside (Odontesthes argentinensis) is an euryhaline species, distributed along the southwest coast of the Atlantic Ocean, present in estuaries, brackish coastal lagoons and shallow marine waters. It is a significant economic resource for local fisheries in southern Brazil, Uruguay and Argentina. The aim of this work was to contribute to knowledge on the stock spatial structure of the silverside, using otolith shape analysis, based on samples from nine locations in the Argentinian Sea, covering a large distribution range of the species. A combination of elliptic Fourier descriptors, Wavelet coefficients and otolith Shape indices were explored by multivariate statistical methods. The application of wavelet and combined wavelet, Fourier and Shape Indices were the most effective variables to discriminate between sampling sites (7.42 total error). PERMANOVA analysis of otolith shape revealed multivariate significant differences between north versus south locations (p < 0.0001). The results obtained show that the spatial structure of O. argentinensis presents a North–South gradient with marked differences between the extreme localities of the north (Mar del Plata, Quequén) with more elliptical shapes than those in the south (San Blas, San Antonio Este) and an isolated group conformed by Puerto Lobos.

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Parasites as indicators of fish population structure at two different geographical scales in contrasting coastal environments of the south-western Atlantic

Cited by 15 publications

References 54 publications

Assembly rules of helminth parasite communities in grey mullets: combining components of diversity

Assembly rules of helminth parasite communities in grey mullets: combining components of diversity

Parasites as conservation tools

Unravelling Stock Spatial Structure of Silverside Odontesthes argentinensis (Valenciennes, 1835) from the North Argentinian Coast by Otoliths Shape Analysis

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