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Paredes-Trujillo A, Hernández-Mena DI, Aguirre-Macedo ML, Mendoza-Garfias MB, Vidal-Martínez VM. Larvae trypanorhynch (Cestoda) infecting the dusky flounder, Syacium papillosum (Paralichthyidae: Pleuronectiformes) in the continental shelf of the Yucatan Peninsula, Mexico. Helminthologia 2024; 61:46-58. [PMID: 38659465 PMCID: PMC11038257 DOI: 10.2478/helm-2024-0002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Accepted: 11/24/2023] [Indexed: 04/26/2024] Open
Abstract
Trypanorhynch cestode larvae were found parasitizing specimens of dusky flounder Syacium papillosum (Linnaeus, 1758) in the Southeastern Gulf of Mexico (s-GoM). Plerocercoids were recovered from a total of 194 flatfish, embedded in the intestine and stomach wall. Trypanorhynch were identified using morphology and a molecular phylogeny using newly sequenced partial 28S (region D1-D3) ribosomal DNA in combination with data derived from other species of trypanorhynchs available from GenBank. Larvae representing three genera of trypanorhynch cestodes, Nybelinia Poche, 1926; Kotorella Euzet & Radujkovic, 1989 and Oncomegas Dollfus, 1929 were found in dusky flounder specimens in the s-GoM. These plerocercoids represent six species: Nybelinia sp. 1, Nybelinia sp. 2, Nybelinia sp. 3, Nybelinia sp. 4, Kotorella pronosoma (Stossich, 1901) and Oncomegas wageneri (Linton, 1890) Dollfus, 1929. All cestode specimens in this study represent new locality records for their respective species.
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Affiliation(s)
- A. Paredes-Trujillo
- Laboratorio de Sanidad Acuícola, Instituto de Ecología, Pesquerías y Oceanografía (EPOMEX) de la Universidad Autónoma de Campeche. Campus de investigación 6 Av. Héroes de Nacozari 466, Campeche, Campeche, C.P. 24039, México
| | - D. I. Hernández-Mena
- Instituto de Biología, Universidad Nacional Autonoma de México (UNAM), A.P.70-153, C.P. 04510, México D.F
| | - M. L. Aguirre-Macedo
- Laboratorio de Parasitología, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN), Unidad Mérida, Carretera Antigua a Progreso Km. 6, Mérida, Yucatán, C.P. 97310, México
| | - M. B. Mendoza-Garfias
- Instituto de Biología, Universidad Nacional Autonoma de México (UNAM), A.P.70-153, C.P. 04510, México D.F
| | - V. M. Vidal-Martínez
- Laboratorio de Parasitología, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN), Unidad Mérida, Carretera Antigua a Progreso Km. 6, Mérida, Yucatán, C.P. 97310, México
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Ocaña FA, Soler-Jiménez LC, Aguirre-Macedo ML, Vidal-Martínez VM. The performance of taxonomic and trait-based approaches in the assessment of dusky flounder parasite communities as indicators of chemical pollution. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 287:117622. [PMID: 34426380 DOI: 10.1016/j.envpol.2021.117622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/12/2020] [Revised: 04/29/2021] [Accepted: 05/18/2021] [Indexed: 06/13/2023]
Abstract
We assessed the performance of taxonomic and several functional trait-based approaches in the assessment of spatial and temporal patterns of dusky flounder (Syacium papillosum) parasite assemblages along the Yucatan shelf to determine their potential as bioindicators of marine chemical pollution. Fish specimens were collected throughout three research cruises that took place in 2015, 2016 and 2018. In addition to the traditional taxonomic approach, four trait-based approaches were performed including community-weighted means (CWM), functional trait niche (FTN), functional groups (FGs), and Rao's functional diversity (FD). Significant spatial and temporal variations in parasite communities were detected using the taxonomic approach. In general, these variations were also reflected in the four trait-based approaches performed, indicating that changes in taxa composition and abundance also resulted in functional composition shifts. Resemblance matrices of both taxonomic and functional trait approaches were significantly correlated. Variations in taxonomic and trait-based composition using the four approaches were significantly correlated with depth, and at least one chemical pollutant variable. Feeding mode, transmission, life stage and attachment structure displayed spatial variability and significant correlations with predictor variables, which indicates that this set of attributes functions as a good surrogate for assessing variations in the functional composition of flatfish parasite communities in relation to pollution. FTN and CWM were the approaches that best detected spatio-temporal variation. CWM and FD were best suited for detecting pollution gradients. These results reveal the feasibility of using trait-based approaches to assess marine parasite communities as bioindicators of chemical pollution. Functional traits of marine metazoan parasites are as good indicators of the effect of oil pollution as taxonomic diversity. This may be a time-saving and cost-effective approach to performing environmental assessments.
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Affiliation(s)
- Frank A Ocaña
- Aquatic Pathology Laboratory, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN) Unidad Mérida, Carretera Antigua a Progreso Km. 6, 97310, Mérida, Yucatán, Mexico; Escuela Nacional de Estudios Superiores Unidad Mérida, Universidad Nacional Autónoma de México, Tablaje Catastral N°6998, Carretera Mérida-Tetiz Km. 4.5, Ucú, Yucatán, Mexico
| | - Lilia C Soler-Jiménez
- Aquatic Pathology Laboratory, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN) Unidad Mérida, Carretera Antigua a Progreso Km. 6, 97310, Mérida, Yucatán, Mexico
| | - M Leopoldina Aguirre-Macedo
- Aquatic Pathology Laboratory, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN) Unidad Mérida, Carretera Antigua a Progreso Km. 6, 97310, Mérida, Yucatán, Mexico.
| | - Víctor M Vidal-Martínez
- Aquatic Pathology Laboratory, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional (CINVESTAV-IPN) Unidad Mérida, Carretera Antigua a Progreso Km. 6, 97310, Mérida, Yucatán, Mexico.
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Shvydka S, Cadarso-Suárez C, Ballová D, Sarabeev V. Patterns of monogenean abundance in native and invasive populations of Planiliza haematocheila (Teleostei: Mugilidae): interactions between climate and host defence mechanisms explain parasite release. Int J Parasitol 2020; 50:1023-1031. [PMID: 32798531 DOI: 10.1016/j.ijpara.2020.06.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 06/06/2020] [Accepted: 06/11/2020] [Indexed: 11/29/2022]
Abstract
One of the most intriguing questions in invasive biology is how an introduced species changes its population parameters in a new environment. Translocation of free-living species commonly results in co-introduction of their parasites. The current study focuses on the abundance pattern of the monogenean parasite Ligophorus llewellyni of the pacific so-iuy mullet, Planiliza haematocheila, across the native and introduced distribution ranges. We evaluated parasite release by the so-iuy mullet by comparing abundance patterns of L. llewellyni under effects of the host length, water temperature and month of the year in the Sea of Japan and the Sea of Azov. Generalised additive models applied to analysis of parasite abundance data showed that relationships between the mean number of L. llewellyni and the three tested independent variables were not linear. Our results suggest that the introduced host lost a large amount of parasite abundance due to the effect of warm climate in a new region, which is mediated by host defence mechanisms. The abundance of L. llewellyni rapidly rose in autumn, as fish activity and immune response decrease, reached the maximum in winter and began to fall in spring as a warm temperature facilitates the fish immune defence. The abundance of L. llewellyni showed an initial increase in response to fish growth and reached an asymptote. The response curves built for native and introduced regions reached an asymptote at different fish body lengths, reflecting the fish growth rate, which is higher in the introduced range of P. haematocheila. We found that the carried parasite species holds the same trend in relationships compared with its native area, between the mean number of monogeneans per host and independent variables increasing abundance with fish length, low temperature and cold months. Our results open new perspectives for future research on statistical modelling of parasite abundance across native and introduced distribution ranges in order to provide deeper insight into host-parasite interactions of invasive populations.
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Affiliation(s)
- Svitlana Shvydka
- Department of Mathematics, Zaporizhzhia National University, Zhukovskogo 66, 69063 Zaporizhzhia, Ukraine
| | - Carmen Cadarso-Suárez
- Department of Statistical, Mathematical Analysis and Optimization, University of Santiago de Compostela, Rúa Lope Gómez de Marzoa, s/n. Campus vida, 15782 Santiago de Compostela, Spain
| | - Dominika Ballová
- Department of Mathematics and Descriptive Geometry, Faculty of Civil Engineering, Slovak University of Technology in Bratislava, Radlinského 11, 81005 Bratislava, Slovakia
| | - Volodimir Sarabeev
- Department of Biology, Zaporizhzhia National University, Zhukovskogo 66, 69063 Zaporizhzhia, Ukraine.
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Soler-Jiménez LC, Hernández-Núñez E, Velázquez-Abunader I, Centeno-Chalé A, Vidal-Martínez VM. Polycyclic aromatic hydrocarbons in the cestode Oncomegas wageneri parasite of Mexican flounder Cyclopsetta chittendeni. Parasitol Res 2020; 119:903-913. [PMID: 32008065 PMCID: PMC7075845 DOI: 10.1007/s00436-019-06597-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Accepted: 12/29/2019] [Indexed: 12/21/2022]
Abstract
The concentrations of polycyclic aromatic hydrocarbon metabolites (PAHm) and their bioconcentration factors (BCF) were determined in the larval stages of the cestode Oncomegas wageneri, recovered from the intestine of the Mexican flounder Cyclopsetta chittendeni, in the southern Gulf of Mexico. The PAHm concentrations in O. wageneri were measured using fixed-wavelength fluorescence spectrometry and compared with PAHm concentrations in host bile. Oncomegas wageneri PAHm concentrations were markedly higher than those in host tissues. The highest BCF values were obtained for 1-hydroxypyrene (OHP) and benzo(a)pyrene (BaP). Using a General Linear Model, a significant negative relationship was found between O. wageneri PAHm concentrations (as response variable) and the number of O. wageneri and oil well proximity. Low BCF values and PAHm concentrations in C. chittendeni correlated positively with O. wageneri PAHm concentrations. In contrast, high BCF values for PAHm concentrations in C. chittendeni had a negative association with O. wageneri PAHm concentrations. This study provides the first evidence of the presence of PAHm in intestinal larval cestodes of marine flatfishes, demonstrating levels of PAHm that were higher than levels in their hosts.
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Affiliation(s)
- Lilia C Soler-Jiménez
- Laboratorios de Parasitología y Pesquerías, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN) Unidad Mérida, Carretera Antigua a Progreso Km. 6, Cordemex, C.P. 97310, Mérida, Yucatán, Mexico
| | - Emanuel Hernández-Núñez
- Laboratorios de Parasitología y Pesquerías, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN) Unidad Mérida, Carretera Antigua a Progreso Km. 6, Cordemex, C.P. 97310, Mérida, Yucatán, Mexico
| | - Iván Velázquez-Abunader
- Laboratorios de Parasitología y Pesquerías, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN) Unidad Mérida, Carretera Antigua a Progreso Km. 6, Cordemex, C.P. 97310, Mérida, Yucatán, Mexico
| | - Arturo Centeno-Chalé
- Laboratorios de Parasitología y Pesquerías, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN) Unidad Mérida, Carretera Antigua a Progreso Km. 6, Cordemex, C.P. 97310, Mérida, Yucatán, Mexico
| | - Víctor M Vidal-Martínez
- Laboratorios de Parasitología y Pesquerías, Centro de Investigación y de Estudios Avanzados del IPN (CINVESTAV-IPN) Unidad Mérida, Carretera Antigua a Progreso Km. 6, Cordemex, C.P. 97310, Mérida, Yucatán, Mexico.
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Martínez-Aquino A, Vidal-Martínez VM, Ceccarelli FS, Méndez O, Soler-Jiménez LC, Aguirre-Macedo ML. Phylogeny, genetics, and the partial life cycle of Oncomegas wageneri in the Gulf of Mexico. Curr Zool 2019; 66:275-283. [PMID: 32440288 PMCID: PMC7233958 DOI: 10.1093/cz/zoz045] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2019] [Accepted: 09/04/2019] [Indexed: 01/20/2023] Open
Abstract
Despite the diversity and ecological importance of cestodes, there is a paucity of studies on their life stages (i.e., complete lists of intermediate, paratenic, and definitive hosts) and genetic variation. For example, in the Gulf of Mexico (GoM) 98 species of cestodes have been reported to date; however, data on their intraspecific genetic variation and population genetic studies are lacking. The trypanorhynch cestode, Oncomegas wageneri, is found (among other places) off the American Western Atlantic Coast, including the GoM, and has been reported as an adult from stingrays and from several teleost species in its larval form (as plerocerci). This study represents the first report of 2 previously unregistered definitive hosts for O. wageneri, namely the Atlantic sharpnose shark Rhizoprionodon terraenovae and the southern stingray Hypanus americanus. In this work, partial sequences of the 28S (region D1-D2) ribosomal DNA were analyzed to include O. wageneri within an eutetrarhynchoid phylogenetic framework. All O. wageneri individuals (which included plerocerci and adults) were recovered as monophyletic and Oncomegas celatus was identified as the sister species of O. wageneri. Furthermore, population genetic analyses of O. wageneri from the southern GoM were carried out using DNA sequences of the mitochondrial cytochrome c oxidase subunit 1 (COI) gene, which reflected high genetic variation and a lack of genetic structure among the 9 oceanographic sampling sites. Based on these results, O. wageneri is panmictic in the southern GoM. More extensive sampling along the species entire distribution is necessary to make more accurate inferences of population genetics of O. wageneri.
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Affiliation(s)
- Andrés Martínez-Aquino
- Facultad de Ciencias, Universidad Autónoma de Baja California, Carretera Transpeninsular 3917, Fraccionamiento Playitas, Ensenada, Baja California 22860, México
| | - Víctor M Vidal-Martínez
- Laboratorio de Patología Acuática, Departamento de Recursos del Mar, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida, Cordemex, Carretera Antigua a Progreso Km. 6, Mérida, Yucatán 97310, México
| | - F Sara Ceccarelli
- Departamento de Biología de la Conservación, CONACYT-Centro de Investigación Científica y de Educación Superior de Ensenada, Carretera Ensenada-Tijuana, Ensenada, Baja California 22860, México
| | - Oscar Méndez
- Laboratorio de Hidrobiología, Facultad de Biología-Xalapa, Universidad Veracruzana, Circuito Gonzalo Aguirre Beltrán S/N Zona Universitaria, Xalapa, Veracruz 91090, México
| | - Lilia C Soler-Jiménez
- Laboratorio de Patología Acuática, Departamento de Recursos del Mar, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida, Cordemex, Carretera Antigua a Progreso Km. 6, Mérida, Yucatán 97310, México
| | - M Leopoldina Aguirre-Macedo
- Laboratorio de Patología Acuática, Departamento de Recursos del Mar, Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Unidad Mérida, Cordemex, Carretera Antigua a Progreso Km. 6, Mérida, Yucatán 97310, México
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Metazoan parasite infracommunities of the dusky flounder (Syacium papillosum) as bioindicators of environmental conditions in the continental shelf of the Yucatan Peninsula, Mexico. Parasit Vectors 2019; 12:277. [PMID: 31151478 PMCID: PMC6545031 DOI: 10.1186/s13071-019-3524-6] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2019] [Accepted: 05/20/2019] [Indexed: 02/03/2023] Open
Abstract
Background We assessed metrics of the metazoan parasite infracommunities of the dusky flounder (Syacium papillosum) as indicators of aquatic environmental health of the Yucatan Shelf (YS) prior to oil extraction. We sampled the dusky flounder and its parasites along the YS, mostly during the 2015 north wind season (November–April). Our aims were: (i) to determine whether the parasite infracommunity metrics of S. papillosum exhibit significant differences among YS subregions; (ii) to determine whether the probability of the occurrence of its parasite species and individuals were affected by environmental variables, nutrients, heavy metals and hydrocarbons at the seascape level; and (iii) to determine whether there were statistical differences between the parasite infracommunity metrics of S. papillosum from YS and those of Syacium gunteri from the Campeche Sound. Multivariate statistical analyses and generalised additive models (GAMs) were used to examine the potential statistical associations between the contaminants, environmental variables and parasite community metrics, and the maximum entropy algorithm (MaxEnt) was used to characterise the habitat’s suitability for the parasite’s probability of occurrence. Results We recovered 48 metazoan parasite species from 127 S. papillosum, with larval cestodes and digeneans being the most numerically-dominant. Multivariate analyses showed significant differences in parasite infracommunity metrics among Western YS, Mid YS and Caribbean subregions, with the latter being the richest in species but not in individuals. The GAM and MaxEnt results indicated a negative effect of top predators (e.g. sharks and rays) removal on parasite metrics. The parasite infracommunities of S. papillosum were twice as rich in the number of species and individuals as those reported for S. gunteri from the Campeche Sound. Conclusions The significant differences among subregions in parasite metrics were apparently due to the interruption of the Yucatan current during the north wind season. The fishing of top predators in combination with an influx of nutrients and hydrocarbons in low concentrations coincides with an increase in larval cestodes and digeneans in S. papillosum. The dusky flounder inhabits a region (YS) with a larger number of metazoan parasite species compared with those available for S. gunteri in the Campeche Sound, suggesting better environmental conditions for transmission in the YS. Electronic supplementary material The online version of this article (10.1186/s13071-019-3524-6) contains supplementary material, which is available to authorized users.
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Alves AM, Souza GTRE, Takemoto RM, Tavares LER, Melo CMD, Madi RR, Jeraldo VDLS. Occurrence of larvae of trypanorhynch cestodes in snappers (Lutjanidae) from northeast Brazil. REVISTA BRASILEIRA DE PARASITOLOGIA VETERINARIA = BRAZILIAN JOURNAL OF VETERINARY PARASITOLOGY : ORGAO OFICIAL DO COLEGIO BRASILEIRO DE PARASITOLOGIA VETERINARIA 2018; 27:415-419. [PMID: 29846451 DOI: 10.1590/s1984-296120180019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 01/29/2018] [Indexed: 06/08/2023]
Abstract
Three species of snappers from artisanal, small-scale fisheries were examined for the presence of parasites. A total of 139 lutjanid fish were collected: 69 specimens of Lutjanus analis, 47 specimens of Lutjanus vivanus, and 23 specimens of Lutjanus synagris. Encysted plerocercoid of trypanorhynch cestodes found at necropsy in the viscera of snappers were sampled for parasitological analysis. These plerocercoid larvae belong to the genera Floriceps, Pseudogrillotia , and Oncomegas. Although these parasites do not have any zoonotic potential, fish with heavy loads of plerocercoids are rejected during inspection as they compromise meat hygiene. Our findings suggest that light larval cestode infections in lutjanids would not lead to consumer rejection of the food product. The occurrence of Floriceps sp. in L. analis and in L. synagris, of Pseudogrillotia sp. in L. vivanus and in L. synagris , and of Oncomegas sp. in L. synagris are new findings in these fish species. These parasites are new to these fish species and have not been reported in snappers from the northeast coast of Brazil. The results contribute to the existing body of knowledge about the parasitic fauna of fish and its distribution along the coastline of Brazil.
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Affiliation(s)
- André Mota Alves
- Laboratório de Biologia Tropical, Instituto de Tecnologia e Pesquisa - ITP, Universidade Tiradentes - UNIT, Aracaju, SE, Brasil
| | | | - Ricardo Massato Takemoto
- Núcleo de Pesquisas em Limnologia, Ictiologia e Aquicultura, Laboratório de Ictioparasitologia, Universidade Estadual de Maringá - UEM, Maringá, PR, Brasil
| | - Luiz Eduardo Roland Tavares
- Centro de Ciências Biológicas e da Saúde, Universidade Federal do Mato Grosso do Sul - UFMS, Campo Grande, MS, Brasil
| | - Cláudia Moura de Melo
- Laboratório de Biologia Tropical, Instituto de Tecnologia e Pesquisa - ITP, Universidade Tiradentes - UNIT, Aracaju, SE, Brasil
| | - Rubens Riscala Madi
- Laboratório de Biologia Tropical, Instituto de Tecnologia e Pesquisa - ITP, Universidade Tiradentes - UNIT, Aracaju, SE, Brasil
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Parasites as bioindicators of environmental degradation in Latin America: A meta-analysis. J Helminthol 2016; 91:165-173. [PMID: 27346709 DOI: 10.1017/s0022149x16000432] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Unregulated economic growth in Latin America has resulted in environmental degradation, including the release of toxic compounds into the environment. One strategy to understand and prevent the outcomes of this harmful environmental degradation is the use of bioindicators. These are free-living or parasite species that respond to habitat alterations with changes in their numbers, physiology or chemical composition. The aim of this review was to determine whether there is evidence of a significant parasite response to environmental damage in Latin America. We collected 26 papers published between 2003 and 2015 and conducted a meta-analysis to test the null hypothesis that there is no significant overall effect of environmental insults on parasites. The meta-analysis showed a low but still significant negative mean overall effect (Hedges' g = -0.221; 95% CI: -0.241 to -0.200; P < 0.0001). However, the magnitudes and directions of the significant effects varied widely. These results suggest that different groups of parasites have distinct responses to various environmental insults and that the groups should be separately analysed after the accumulation of a sufficient number of studies. For future studies on this topic in Latin America, we suggest: (1) using field and experimental approaches to determine the response of parasites to environmental degradation; (2) using an interdisciplinary approach, including different types of biomarkers in both parasites and individual hosts to generate long-term datasets in polluted and reference areas; (3) conducting studies on parasites as accumulation bioindicators.
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Barber I, Berkhout BW, Ismail Z. Thermal Change and the Dynamics of Multi-Host Parasite Life Cycles in Aquatic Ecosystems. Integr Comp Biol 2016; 56:561-72. [PMID: 27252219 PMCID: PMC5035383 DOI: 10.1093/icb/icw025] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Altered thermal regimes associated with climate change are impacting significantly on the physical, chemical, and biological characteristics of the Earth's natural ecosystems, with important implications for the biology of aquatic organisms. As well as impacting the biology of individual species, changing thermal regimes have the capacity to mediate ecological interactions between species, and the potential for climate change to impact host-parasite interactions in aquatic ecosystems is now well recognized. Predicting what will happen to the prevalence and intensity of infection of parasites with multiple hosts in their life cycles is especially challenging because the addition of each additional host dramatically increases the potential permutations of response. In this short review, we provide an overview of the diverse routes by which altered thermal regimes can impact the dynamics of multi-host parasite life cycles in aquatic ecosystems. In addition, we examine how experimentally amenable host-parasite systems are being used to determine the consequences of changing environmental temperatures for these different types of mechanism. Our overarching aim is to examine the potential of changing thermal regimes to alter not only the biology of hosts and parasites, but also the biology of interactions between hosts and parasites. We also hope to illustrate the complexity that is likely to be involved in making predictions about the dynamics of infection by multi-host parasites in thermally challenged aquatic ecosystems.
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Affiliation(s)
- Iain Barber
- Department of Neuroscience, Psychology & Behaviour, College of Medicine, Biological Sciences and Psychology, University of Leicester, Leicester, LE1 7RH, UK
| | - Boris W Berkhout
- Department of Neuroscience, Psychology & Behaviour, College of Medicine, Biological Sciences and Psychology, University of Leicester, Leicester, LE1 7RH, UK
| | - Zalina Ismail
- Department of Neuroscience, Psychology & Behaviour, College of Medicine, Biological Sciences and Psychology, University of Leicester, Leicester, LE1 7RH, UK
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