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Gutiérrez MP, Canel D, Braicovich PE, Lanfranchi AL, Irigoitia MM, Ivanovic ML, Prandoni NI, Elena B, Timi JT. Challenges for assessment of cohabiting stocks of argentine shortfin squid Illex argentinus using parasites as biological tags. Int J Parasitol Parasites Wildl 2024; 25:100974. [PMID: 39257917 PMCID: PMC11386309 DOI: 10.1016/j.ijppaw.2024.100974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2024] [Revised: 08/05/2024] [Accepted: 08/12/2024] [Indexed: 09/12/2024]
Abstract
The Argentine shortfin squid Illex argentinus is one of the most important commercial species for the Argentine fisheries. The understanding of its stock structure is therefore necessary to ensure fishery sustainability and, given the relevance of squids in the regional food web, for biodiversity conservation. An overlap between parasitology and fisheries lies in the use of parasites as biological tags to identify the stock composition of exploited resources, however, the efficiency of this methodology has been questioned for stock assessment in cephalopods. In this work, the value of parasite assemblages of I. argentinus to discriminate between the co-occurring summer spawning stock (SSS) and south patagonic stock (SPS) in a mixing area over the Patagonian continental shelf during summer was evaluated for two cohorts. Five shortfin squid samples corresponding to SSS and SPS were examined for metazoan parasites. The squid size affected the parasite assemblage similarities, conversely, no gender effect on the infracommunities was observed. Multivariate analysis evidenced similarity in parasite assemblage composition and structure between both stocks captured in the mixing area on the same date. This similarity was related to the presence of short-lived trophically transmitted parasites, which are associated with their recently consumed food items and, indirectly, to the oceanographic conditions. The same set of host and environmental variables were identified as the most probable causes of the temporal variability observed in parasite assemblages between SPS cohorts and even intra-cohort. Despite the value of parasites as tags for discriminating squid stocks may have little value when cohabiting stocks are analysed, their variability could serve as a valuable indicator of environmental conditions. The use of parasites as biological tags to discriminate stocks needs to be verified at different spatiotemporal scales, including samples from other non-sympatric stocks in the analyses.
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Affiliation(s)
- María Paz Gutiérrez
- Laboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, 7600, Mar del Plata, Argentina
| | - Delfina Canel
- Laboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, 7600, Mar del Plata, Argentina
| | - Paola E Braicovich
- Laboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, 7600, Mar del Plata, Argentina
| | - Ana L Lanfranchi
- Laboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, 7600, Mar del Plata, Argentina
| | - Manuel M Irigoitia
- Laboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, 7600, Mar del Plata, Argentina
| | - Marcela L Ivanovic
- Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Paseo Victoria Ocampo N°1, Escollera Norte, 7600, Mar del Plata, Argentina
| | - Nicolás I Prandoni
- Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Paseo Victoria Ocampo N°1, Escollera Norte, 7600, Mar del Plata, Argentina
| | - Beatriz Elena
- Instituto Nacional de Investigación y Desarrollo Pesquero (INIDEP), Paseo Victoria Ocampo N°1, Escollera Norte, 7600, Mar del Plata, Argentina
| | - Juan T Timi
- Laboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata, Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Funes 3350, 7600, Mar del Plata, Argentina
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Gérard C, Trochard C, Hervé MR, Hamel H, Gay M, Barbier M, Trancart T, Barreau T. Communities of metazoan parasites in seven sympatric skate species (Elasmobranchii, Rajidae) from the English Channel and Celtic Sea differing in conservation status. JOURNAL OF FISH BIOLOGY 2024. [PMID: 38937946 DOI: 10.1111/jfb.15845] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2024] [Revised: 05/29/2024] [Accepted: 05/29/2024] [Indexed: 06/29/2024]
Abstract
Elasmobranch populations are in steep decline mainly due to overfishing bycatch, but parasites may accelerate the collapse of vulnerable and/or highly parasitized species. We therefore studied metazoan parasites of Rajidae from the northeast Atlantic: vulnerable Leucoraja fullonica, near-threatened Raja brachyura, Raja clavata, Raja microocellata and Raja undulata, and least-concerned Raja montagui and Leucoraja naevus. Overall prevalence varied from 19% for R. montagui to 100% for L. fullonica. Parasite communities differed between skate species, and prevalence and abundance were higher for L. fullonica, R. microocellata, and R. undulata. We recorded 11 parasite taxa in the study: three nematodes, six cestodes, one monogenean, and one myxosporean. Whatever the skate species, the parasite component community comprised at least two nematode taxa among Phocanema spp., Proleptus sp. and Anisakis simplex. DNA-sequencing revealed that Phocanema azarasi and Phocanema krabbei both occurred in R. microocellata and R. undulata. Phocanema spp. was first recorded in L. fullonica, L. naevus, R. microocellata, R. montagui, and R. undulata, as Proleptus sp. in L. fullonica, and A. simplex in L. fullonica and R. clavata, Rockacestus sp. and Nybelinia sp. in R. undulata, and gill-myxosporeans on L. fullonica, L. naevus, R. microocellata, and R. undulata. The occurrence of 16 new host-parasite associations suggests potential environmental changes. Information provided by trophically transmitted helminths confirmed an opportunistic skate diet based on crustaceans and fish. We discuss results in terms of host fitness loss, bioindicator role of parasites, and anisakiasis risk. We recommend incorporating parasitology in research to improve elasmobranch conservation.
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Affiliation(s)
- Claudia Gérard
- CNRS, ECOBIO (Ecosystèmes, biodiversité, évolution)-UMR 6553, University of Rennes, Rennes, France
| | | | - Maxime R Hervé
- IGEPP, INRAE, Institut Agro, University of Rennes, Rennes, France
| | - Héloïse Hamel
- UMR BOREA, Muséum National d'Histoire Naturelle, Service des Stations Marines, Station Marine de Dinard (CRESCO), Dinard, France
| | - Mélanie Gay
- French Agency for Food, Environmental and Occupational Health and Safety (Anses), Laboratory for Food Safety, Boulogne-sur-Mer, France
| | - Michel Barbier
- French Agency for Food, Environmental and Occupational Health and Safety (Anses), Laboratory for Food Safety, Boulogne-sur-Mer, France
| | - Thomas Trancart
- UMR BOREA, Muséum National d'Histoire Naturelle, Service des Stations Marines, Station Marine de Dinard (CRESCO), Dinard, France
| | - Thomas Barreau
- UMR BOREA, Muséum National d'Histoire Naturelle, Service des Stations Marines, Station Marine de Dinard (CRESCO), Dinard, France
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Ferrari A, Spiga M, Rodriguez MD, Fiorentino F, Gil-Herrera J, Hernandez P, Hidalgo M, Johnstone C, Khemiri S, Mokhtar-Jamaï K, Nadal I, Pérez M, Sammartino S, Vasconcellos M, Cariani A. Matching an Old Marine Paradigm: Limitless Connectivity in a Deep-Water Fish over a Large Distance. Animals (Basel) 2023; 13:2691. [PMID: 37684955 PMCID: PMC10486518 DOI: 10.3390/ani13172691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 08/14/2023] [Accepted: 08/17/2023] [Indexed: 09/10/2023] Open
Abstract
Investigations of population structuring in wild species are fundamental to complete the bigger picture defining their ecological and biological roles in the marine realm, to estimate their recovery capacity triggered by human disturbance and implement more efficient management strategies for fishery resources. The Blackspot Seabream (Pagellus bogaraveo, Brünnich 1768) is a commercially valuable deep-water fish highly exploited over past decades. Considering its exploitation status, deepening the knowledge of intraspecific variability, genetic diversity, and differentiation using high-performing molecular markers is considered an important step for a more effective stock assessment and fishery management. With one of the largest efforts conceived of and completed by countries overlooking the Atlantic and Mediterranean coasts in recent years, a total of 320 individuals were collected from different fishing grounds in the Mediterranean Sea and Atlantic Ocean and analysed using 29 microsatellite loci. We applied multiple statistical approaches to investigate the species' connectivity and population structure across most of its described distribution area. Considering the incomplete knowledge regarding the migratory behaviour of adults, here we suggest the importance of egg and larval dispersal in sustaining the observed genetic connectivity on such a large geographical scale.
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Affiliation(s)
- Alice Ferrari
- Department of Biological, Geological & Environmental Sciences (BiGeA), University of Bologna, 40126 Bologna, Italy; (M.S.); (A.C.)
| | - Martina Spiga
- Department of Biological, Geological & Environmental Sciences (BiGeA), University of Bologna, 40126 Bologna, Italy; (M.S.); (A.C.)
| | | | - Fabio Fiorentino
- Institute for Marine Biological Resources and Biotechnology (IRBIM), National Research Council (CNR), 91026 Trapani, Italy;
- Stazione Zoologica Anton Dorhn, 90149 Palermo, Italy
| | | | - Pilar Hernandez
- Technical Unit for Western Mediterranean, General Fisheries Commission for the Mediterranean (GFCM), Fisheries and Aquaculture Division, Food and Agricultural Organization (FAO) of the United Nations, 29014 Malaga, Spain;
| | - Manuel Hidalgo
- Oceanographic Center of the Balearic Islands, Ecosystem Oceanography Group (GRECO), Spanish Institute of Oceanography (IEO, CSIC), 07015 Palma, Spain;
| | - Carolina Johnstone
- Centro Oceanográfico de Málaga (IEO, CSIC), 29640 Málaga, Spain; (M.D.R.); (C.J.)
| | - Sana Khemiri
- Institut National des Sciences et Technologies de la Mer, Salammbô 2025, Tunisia;
| | - Kenza Mokhtar-Jamaï
- Laboratoire de Génétique des Populations Halieutiques, Institut National de Recherche Halieutique (INRH), Centre Régional d’Agadir, Agadir 80000, Morocco;
| | - Irene Nadal
- Physical Oceanography Group, Instituto de Biotecnología y Desarrollo Azul (IBYDA), Universidad de Málaga, 29071 Málaga, Spain;
| | - Montse Pérez
- AquaCOV, Centro Oceanográfico de Vigo (IEO, CSIC), 36390 Pontevedra, Spain;
| | - Simone Sammartino
- Physical Oceanography Group, Instituto de Ingeniería Oceánica (IIO), Universidad de Málaga, 29071 Málaga, Spain;
| | - Marcelo Vasconcellos
- Fisheries and Aquaculture Division, Food and Agriculture Organization (FAO) of the United Nations, 00153 Rome, Italy;
| | - Alessia Cariani
- Department of Biological, Geological & Environmental Sciences (BiGeA), University of Bologna, 40126 Bologna, Italy; (M.S.); (A.C.)
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Yabsley MJ, Coker SM, Welch CN, Garrett KB, Murray M, Grunert R, Seixas JS, Kistler WM, Curry SE, Adams HC, Nakatsu CS, Swanepoel L, Wyckoff ST, Koser TM, Kurimo-Beechuk E, Haynes E, Hernandez SM. A single Haemoproteus plataleae haplotype is widespread in white ibis ( Eudocimus albus) from urban and rural sites in southern Florida. Int J Parasitol Parasites Wildl 2023; 21:269-276. [PMID: 37520900 PMCID: PMC10372042 DOI: 10.1016/j.ijppaw.2023.06.010] [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: 05/04/2023] [Revised: 06/27/2023] [Accepted: 06/27/2023] [Indexed: 08/01/2023]
Abstract
The American white ibis (Eudocimus albus), a common bird species in Florida, has become increasingly urban, with many populations relying heavily on urban and suburban habitats, which may alter parasite transmission. Parasites of ibis, especially haemosporidians, are understudied. Avian haemosporidia can have a wide range of impacts on birds, including decreased reproductive success or increased mortality. Because southern Florida is subtropical and has a high diversity of potential vectors for haemosporidia, we hypothesized that there will be a high prevalence and genetic diversity of haemosporidia in white ibis. A total of 636 ibis from South Florida were sampled from 2010 to 2022, and blood samples were tested for haemosporidia by examination of Giemsa-stained thin blood smears and/or nested PCRs targeting the cytochrome b gene. A total of 400 (62.9%, 95% CI 59-66.7%) ibis were positive for parasites that were morphologically identified as Haemoproteus plataleae. Sequences of 302 positives revealed a single haplotype of Haemoproteus (EUDRUB01), which was previously reported from white ibis in South Florida and captive scarlet ibis (E. ruber) in Brazil. No Plasmodium or Leucocytozoon infections were detected. Parasitemias of the 400 positive birds were very low (average 0.084%, range 0.001%-2.16% [although only 2 birds had parasitemias >1%]). Prevalence and parasitemias were similar for males and females (68% vs. 61.6% and 0.081% vs. 0.071%, respectively). Prevalence in juveniles was lower compared with adults (52% vs. 67.4%) but parasitemias were higher in juveniles (0.117% vs. 0.065%). This data shows that H. plataleae is common in ibis in South Florida. Although parasitemias were generally low, additional research is needed to determine if this parasite has subclinical effects on ibis, if additional haplotypes or parasite species infect ibis in other regions of their range, or if H. plataleae is pathogenic for other sympatric avian species.
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Affiliation(s)
- Michael J. Yabsley
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
- Center for Ecology of Infectious Diseases, University of Georgia, Athens, GA, USA
| | - Sarah M. Coker
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
| | - Catharine N. Welch
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
- Common Ground Ecology, Tampa, FL, USA
| | - Kayla B. Garrett
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
| | - Maureen Murray
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
| | - Ryan Grunert
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
| | - Julia S. Seixas
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
| | - Whitney M. Kistler
- School of Mathematics and Sciences, Lincoln Memorial University, Harrogate, TN, USA
| | - Shannon E. Curry
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
| | - Henry C. Adams
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
| | - Charlie S. Nakatsu
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
| | - Liandrie Swanepoel
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
| | - Seth T. Wyckoff
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
| | - Troy M. Koser
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
| | - Elizabeth Kurimo-Beechuk
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
| | - Ellen Haynes
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
| | - Sonia M. Hernandez
- Warnell School of Forestry and Natural Resources, University of Georgia, Athens, GA, USA
- Southeastern Cooperative Wildlife Disease Study, University of Georgia, Athens, GA, USA
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Neves J, Veríssimo A, Múrias Santos A, Garrido S. Comparing otolith shape descriptors for population structure inferences in a small pelagic fish, the European sardine Sardina pilchardus (Walbaum, 1792). JOURNAL OF FISH BIOLOGY 2023; 102:1219-1236. [PMID: 36880257 DOI: 10.1111/jfb.15369] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Accepted: 03/02/2023] [Indexed: 05/13/2023]
Abstract
Otolith shape analysis has been one of the most used approaches to study population structure in the past decades. Currently, two sets of shape descriptors are used to perform otolith shape analysis, namely, Elliptic Fourier descriptor (EFd), which focuses on the overall otolith shape differences, and Discrete Wavelet descriptor (DWd), which is sensible to local differences along the otolith contour. Here, the authors conducted a comparative analysis of the performance of both the descriptors in reconstructing the population structure and connectivity patterns in a small pelagic fish species with a wide geographical distribution and fast growth rate, the European sardine Sardina pilchardus (Walbaum, 1792), for the first time. A combination of each otolith shape descriptor and shape indices was explored using multivariate statistical methods. The two otolith shape descriptors showed similar, although limited, overall classification success associated with the population dynamic characteristics of the species. Both descriptors point to migration among adjacent areas, such as northern Atlantic locations, eastern Mediterranean and even across well-defined physical obstacles, such as the Strait of Gibraltar, among Atlantic and western Mediterranean locations. Both descriptors supported the division of the populations of Mediterranean waters into three main groups but slightly differed in the group limits of the Atlantic waters. A comparison of the present results with those from previous otolith shape analysis studies using EFd on a decadal time scale revealed differences in the population structure and connectivity patterns compared to the earlier period. These differences not only may be attributed to changes in environmental variables leading to changes in population dynamics but can also be the result of the sardine biomass sharp decrease that occurred in the past decade.
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Affiliation(s)
- João Neves
- Faculty of Sciences, University of Porto, Porto, Portugal
- CIBIO - Research Centre in Biodiversity and Genetic Resources, Vairão, Portugal
- Portuguese Institute for Sea and Atmosphere (IPMA), Lisbon, Portugal
| | - Ana Veríssimo
- CIBIO - Research Centre in Biodiversity and Genetic Resources, Vairão, Portugal
| | - António Múrias Santos
- Faculty of Sciences, University of Porto, Porto, Portugal
- CIBIO - Research Centre in Biodiversity and Genetic Resources, Vairão, Portugal
| | - Susana Garrido
- Portuguese Institute for Sea and Atmosphere (IPMA), Lisbon, Portugal
- Marine and Environmental Sciences Centre (MARE), Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal
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Geraerts M, Huyse T, Barson M, Bassirou H, Bilong Bilong CF, Bitja Nyom AR, Chocha Manda A, Cruz-Laufer AJ, Kalombo Kabalika C, Kapepula Kasembele G, Muterezi Bukinga F, Njom S, Artois T, Vanhove MPM. Mosaic or melting pot: The use of monogeneans as a biological tag and magnifying glass to discriminate introduced populations of Nile tilapia in sub-Saharan Africa. Genomics 2022; 114:110328. [PMID: 35276332 DOI: 10.1016/j.ygeno.2022.110328] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2021] [Revised: 02/10/2022] [Accepted: 03/06/2022] [Indexed: 01/14/2023]
Abstract
The origin of introduced Nile tilapia stocks in sub-Saharan Africa is largely unknown. In this study, the potential of monogeneans as a biological tag and magnifying glass is tested to reveal their hosts' stocking history. The monogenean gill community of different Nile tilapia populations in sub-Saharan Africa was explored, and a phylogeographic analysis was performed based on the mitogenomes of four dactylogyrid species (Cichlidogyrus halli, C. sclerosus, C. thurstonae, and Scutogyrus longicornis). Our results encourage the use of dactylogyrids as biological tags. The magnifying glass hypothesis is only confirmed for C. thurstonae, highlighting the importance of the absence of other potential hosts as prerequisites for a parasite to act as a magnifying glass. With the data generated here, we are the first to extract mitogenomes from individual monogeneans and to perform an upscaled survey of the comparative phylogeography of several monogenean species with unprecedented diagnostic resolution.
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Affiliation(s)
- Mare Geraerts
- UHasselt - Hasselt University, Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Diepenbeek, Belgium.
| | - Tine Huyse
- Department of Biology, Royal Museum for Central Africa, Tervuren, Belgium
| | - Maxwell Barson
- Department of Biological Sciences, University of Zimbabwe, Harare, Zimbabwe; Department of Biological Sciences, University of Botswana, Gaborone, Botswana; Lake Kariba Research Station, University of Zimbabwe, Kariba, Zimbabwe
| | - Hassan Bassirou
- Department of Biological Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon
| | | | - Arnold R Bitja Nyom
- Department of Biological Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon; Department of Management of Fisheries and Aquatic Ecosystems, Institute of Fisheries, University of Douala, Douala, Cameroon
| | - Auguste Chocha Manda
- Unité de Recherche en Biodiversité et Exploitation durable des Zones Humides (BEZHU), Faculté des Sciences Agronomiques, Université de Lubumbashi, Lubumbashi, Democratic Republic of the Congo
| | - Armando J Cruz-Laufer
- UHasselt - Hasselt University, Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Diepenbeek, Belgium
| | - Clément Kalombo Kabalika
- Unité de Recherche en Biodiversité et Exploitation durable des Zones Humides (BEZHU), Faculté des Sciences Agronomiques, Université de Lubumbashi, Lubumbashi, Democratic Republic of the Congo
| | - Gyrhaiss Kapepula Kasembele
- Unité de Recherche en Biodiversité et Exploitation durable des Zones Humides (BEZHU), Faculté des Sciences Agronomiques, Université de Lubumbashi, Lubumbashi, Democratic Republic of the Congo
| | - Fidel Muterezi Bukinga
- Section de Parasitologie, Département de Biologie, Centre de Recherche en Hydrobiologie, Uvira, Democratic Republic of the Congo
| | - Samuel Njom
- Department of Biological Sciences, University of Ngaoundéré, Ngaoundéré, Cameroon
| | - Tom Artois
- UHasselt - Hasselt University, Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Diepenbeek, Belgium
| | - Maarten P M Vanhove
- UHasselt - Hasselt University, Faculty of Sciences, Centre for Environmental Sciences, Research Group Zoology: Biodiversity and Toxicology, Diepenbeek, Belgium; Zoology Unit, Finnish Museum of Natural History, University of Helsinki, Helsinki, Finland
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7
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The macroparasite fauna of cichlid fish from Nicaraguan lakes, a model system for understanding host-parasite diversification and speciation. Sci Rep 2022; 12:3944. [PMID: 35273219 PMCID: PMC8913791 DOI: 10.1038/s41598-022-07647-w] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Accepted: 02/15/2022] [Indexed: 01/28/2023] Open
Abstract
The Nicaraguan lakes represent an ideal continent-island-like setting to study the colonization patterns of both fish and their parasites. The dominant fish fauna are cichlids, particularly the Midas cichlid species complex Amphilophus spp., a well-studied model for recent sympatric speciation. Here, we characterized the Midas cichlid macroparasite diversity in Nicaraguan lakes. We evaluated patterns of parasite diversity across host populations. Morphological and molecular analyses were conducted, revealing a macroparasite fauna composed by 37 taxa, including platyhelminths, nematodes, copepods, branchiurans, hirudineans and oribatids. Three invasive species are reported for the first time. The Midas cichlid was infected by 22 parasite taxa, 18 shared with other cichlids. Eight taxa conformed the core parasite fauna of the Midas cichlid. The large lakes had higher parasite diversity than the smaller and isolated crater lakes, although parasite infracommunity diversity was lower. Environmental factors along with the differential distribution of intermediate hosts, the potential resistance gained by their hosts after colonization of new lakes, competitive exclusion among parasites, or the introduction of exotic fish, may determine the observed pattern of parasite heterogeneous distribution. Our study provides a ground to explore the evolutionary history of both, hosts and parasites within the context of speciation and diversification processes.
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Gagne RB, Crooks KR, Craft ME, Chiu ES, Fountain-Jones NM, Malmberg JL, Carver S, Funk WC, VandeWoude S. Parasites as conservation tools. CONSERVATION BIOLOGY : THE JOURNAL OF THE SOCIETY FOR CONSERVATION BIOLOGY 2022; 36:e13719. [PMID: 33586245 DOI: 10.1111/cobi.13719] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Accepted: 02/08/2021] [Indexed: 06/12/2023]
Abstract
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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Affiliation(s)
- Roderick B Gagne
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado, USA
| | - Kevin R Crooks
- Department of Fish, Wildlife, and Conservation Biology, Colorado State University, Fort Collins, Colorado, USA
| | - Meggan E Craft
- Department of Veterinary Population Medicine, University of Minnesota, St Paul, Minnesota, USA
| | - Elliott S Chiu
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado, USA
| | | | - Jennifer L Malmberg
- Department of Veterinary Sciences, Wyoming State Veterinary Laboratory, University of Wyoming, Laramie, Wyoming, USA
| | - Scott Carver
- School of Natural Sciences, University of Tasmania, Hobart, Tasmania, Australia
| | - W Chris Funk
- Graduate Degree Program in Ecology, Department of Biology, Colorado State University, Fort Collins, Colorado, USA
| | - Sue VandeWoude
- Department of Microbiology, Immunology, and Pathology, Colorado State University, Fort Collins, Colorado, USA
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9
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Microhabitat use of Pseudocharopinus markewitschi (Gusev, 1951) (Copepoda: Lernaeopodidae) on the mottled skate, Beringraja pulchra (Liu, 1932): Does biased occurrence on the dorsal side of the pelvic fin imply a safety zone? Parasitol Int 2022; 88:102561. [DOI: 10.1016/j.parint.2022.102561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2021] [Revised: 02/14/2022] [Accepted: 02/15/2022] [Indexed: 11/30/2022]
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10
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Amakali AM, Halajian A, Wilhelm MR, Tjipute M, Heckmann R, Luus-Powell W. Selected parasites of silver kob (Argyrosomus inodorus) (Actinopterygii: Sciaenidae) from northern Namibia. S AFR J SCI 2022. [DOI: 10.17159/sajs.2022/9139] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
The present study reports five metazoan parasites recorded from silver kob (Argyrosomus inodorus). Five fish were collected monthly (n=55) for 11 months in 2017–2018 (excluding July 2017) using conventional angling gear in Toscanini, Mile 108 and Henties Bay, northern Namibia. Fish were examined individually for ecto- and endo-parasites. Photomicrographs, drawings and measurements of parasites were made using a camera lucida and calibrated eyepiece of an Olympus (BX50) compound microscope and/or a Zeiss (Discovery V8) camera calibrated on a Leica dissecting microscope. Amongst species found, monogeneans including Diplectanum sciaenae van Beneden & Hesse, 1863, two species of Calceostoma van Beneden, 1858, one species of Sciaenacotyle Mamaev, 1989 and one acanthocephalan Corynosoma australe Johnston, 1937 were found and are reported here. This is the first study of parasites found from silver kob of the Atlantic Ocean. Silver kob has potential to be used as a mariculture species. In addition to mariculture, information obtained from this study may also be used as a baseline for stock structure and biological tagging.
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Affiliation(s)
- Annette M. Amakali
- Department of Fisheries and Aquatic Sciences, University of Namibia, Henties Bay, Namibia
| | - Ali Halajian
- DSI-NRF SARChI Chair (Ecosystem Health), Department of Biodiversity, University of Limpopo, Polokwane, South Africa
| | - Margit R. Wilhelm
- Department of Fisheries and Aquatic Sciences, University of Namibia, Henties Bay, Namibia
| | - Martin Tjipute
- Department of Fisheries and Aquatic Sciences, University of Namibia, Henties Bay, Namibia
| | - Richard Heckmann
- Department of Biology, Brigham Young University, Provo, Utah, USA
| | - Wilmien Luus-Powell
- DSI-NRF SARChI Chair (Ecosystem Health), Department of Biodiversity, University of Limpopo, Polokwane, South Africa
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11
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Vanhove MPM, Hermans R, Artois T, Kmentová N. From the Atlantic Coast to Lake Tanganyika: Gill-Infecting Flatworms of Freshwater Pellonuline Clupeid Fishes in West and Central Africa, with Description of Eleven New Species and Key to Kapentagyrus (Monogenea, Dactylogyridae). Animals (Basel) 2021; 11:ani11123578. [PMID: 34944353 PMCID: PMC8697917 DOI: 10.3390/ani11123578] [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: 10/31/2021] [Revised: 11/27/2021] [Accepted: 12/06/2021] [Indexed: 12/03/2022] Open
Abstract
Simple Summary Sardines and other herring-like fishes (Clupeidae) are well-known, mostly from open seas, and globally commercially important. Their freshwater representatives receive less attention. Tropical Africa harbours over 20 species of the latter, classified under Pellonulini. These small river and lake fishes sustain locally important fisheries and are sometimes exported (inter)nationally. There is little research on them, let alone their parasites. An abundant parasite group of African freshwater clupeids is monogenean flatworms infecting their gills. Since the discoveries of the first (1969) and second species (1973) systematics of these monogeneans was ignored until 2018, when they were classified under the new genus Kapentagyrus with three species from three pellonuline species. Here, we inspected the gills of 12 West and Central African pellonulines, 10 from which there were no known parasites. We discovered and described 11 new species of Kapentagyrus. They look highly similar; distinguishing them requires measuring parts of their attachment organ. This study more than quadruples the known species richness of Kapentagyrus, and almost quadruples the number of pellonuline species of which monogeneans are known. Monogeneans are suitable tags for the lifestyle and history of their hosts. Therefore, parasitological knowledge on these poorly studied fishes will contribute to understanding data-poor African fisheries. Abstract Unlike their marine counterparts, tropical freshwater clupeids receive little scientific attention. However, they sustain important fisheries that may be of (inter)national commercial interest. Africa harbours over 20 freshwater clupeid species within Pellonulini. Recent research suggests their most abundant parasites are gill-infecting monogenean flatworms within Kapentagyrus. After inspecting specimens of 12 freshwater clupeids from West and Central Africa, mainly sourced in biodiversity collections, we propose 11 new species of Kapentagyrus, which we describe using their haptoral and genital morphology. Because of their high morphological similarity, species delineation relies mostly on the morphometrics of anchors and hooks. Specifically, earlier, molecular taxonomic work indicated that the proportion between the length of the anchor roots, and between the hook and anchor length, is diagnostic. On average, about one species of Kapentagyrus exists per pellonuline species, although Pellonula leonensis harbours four species and Microthrissa congica two, while Microthrissa moeruensis and Potamothrissa acutirostris share a gill monogenean species. This study more than quadruples the number of known species of Kapentagyrus, also almost quadrupling the number of pellonuline species of which monogeneans are known. Since members of Kapentagyrus are informative about their hosts’ ecology, evolutionary history, and introduction routes, this enables a parasitological perspective on several data-poor African fisheries.
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Affiliation(s)
- Maarten P. M. Vanhove
- Centre for Environmental Sciences, Research Group Zoology: Biodiversity & Toxicology, Hasselt University, Agoralaan Gebouw D, 3590 Diepenbeek, Belgium; (R.H.); (T.A.); (N.K.)
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
- Correspondence:
| | - Raquel Hermans
- Centre for Environmental Sciences, Research Group Zoology: Biodiversity & Toxicology, Hasselt University, Agoralaan Gebouw D, 3590 Diepenbeek, Belgium; (R.H.); (T.A.); (N.K.)
| | - Tom Artois
- Centre for Environmental Sciences, Research Group Zoology: Biodiversity & Toxicology, Hasselt University, Agoralaan Gebouw D, 3590 Diepenbeek, Belgium; (R.H.); (T.A.); (N.K.)
| | - Nikol Kmentová
- Centre for Environmental Sciences, Research Group Zoology: Biodiversity & Toxicology, Hasselt University, Agoralaan Gebouw D, 3590 Diepenbeek, Belgium; (R.H.); (T.A.); (N.K.)
- Department of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, 611 37 Brno, Czech Republic
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12
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Takano T, Iwaki T, Waki T, Murata R, Suzuki J, Kodo Y, Kobayashi K, Ogawa K. Species composition and infection levels of Anisakis (Nematoda: Anisakidae) in the skipjack tuna Katsuwonus pelamis (Linnaeus) in the Northwest Pacific. Parasitol Res 2021; 120:1605-1615. [PMID: 33830362 DOI: 10.1007/s00436-021-07144-5] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 03/28/2021] [Indexed: 11/27/2022]
Abstract
Parasites can be used as biological tags to assess stock structures in various marine fish species. In the present study, the species composition and infection levels of parasitic nematodes of the genus Anisakis in the skipjack tuna Katsuwonus pelamis were examined in the Northwest Pacific and adjacent seas. A total of 867 third-stage larvae of Anisakis were collected from 112 skipjack tunas captured around Japan and in other subtropical localities. All larvae were identified as A. berlandi, A. pegreffii, A. simplex (s.s.), A. typica, and A. physeteris (s.l.) by the direct sequencing of the mitochondrial cox2 gene and real-time PCR assays targeting the nuclear ITS region. Anisakis species composition differed among northeastern Japan, the Sea of Japan, and other areas (central Japan, the Nansei Islands, and subtropical region), which is largely concordant with previous stock discrimination of skipjack tuna. Molecular phylogenetic analysis resulted in two intraspecific genetic groups in A. simplex (s.s.), one of which occurred almost exclusively in northeastern Japan. This could be a useful indicator for stock discrimination. Skipjack tunas from northeastern Japan were also characterized by a remarkable variety in the intensity of A. simplex (s.s.), suggesting the commingling of individuals with different migration patterns. This idea might be further justified by the geographic distribution of two genetically distinct groups of A. physeteris (s.l.).
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Affiliation(s)
| | | | - Tsukasa Waki
- Meguro Parasitological Museum, Meguro, Tokyo, Japan
- Faculty of Science, Toho University, Funabashi, Chiba, Japan
| | - Rie Murata
- Depertment of Microbiology, Tokyo Metropolitan Institute of Public Health, Shinjuku, Tokyo, Japan
| | - Jun Suzuki
- Depertment of Microbiology, Tokyo Metropolitan Institute of Public Health, Shinjuku, Tokyo, Japan
| | - Yukihiro Kodo
- Depertment of Microbiology, Tokyo Metropolitan Institute of Public Health, Shinjuku, Tokyo, Japan
| | - Kai Kobayashi
- Depertment of Microbiology, Tokyo Metropolitan Institute of Public Health, Shinjuku, Tokyo, Japan
| | - Kazuo Ogawa
- Meguro Parasitological Museum, Meguro, Tokyo, Japan
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13
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Artetxe-Arrate I, Fraile I, Marsac F, Farley JH, Rodriguez-Ezpeleta N, Davies CR, Clear NP, Grewe P, Murua H. A review of the fisheries, life history and stock structure of tropical tuna (skipjack Katsuwonus pelamis, yellowfin Thunnus albacares and bigeye Thunnus obesus) in the Indian Ocean. ADVANCES IN MARINE BIOLOGY 2020; 88:39-89. [PMID: 34119046 DOI: 10.1016/bs.amb.2020.09.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Skipjack (Katsuwonus pelamis), yellowfin (Thunnus albacares) and bigeye (Thunnus obesus) tuna are the target species of tropical tuna fisheries in the Indian Ocean, with high commercial value in the international market. High fishing pressure over the past three decades has raised concerns about their sustainability. Understanding life history strategies and stock structure is essential to determine species resilience and how they might respond to exploitation. Here we provide a comprehensive review of available knowledge on the biology, ecology, and stock structure of tropical tuna species in the Indian Ocean. We describe the characteristics of Indian Ocean tropical tuna fisheries and synthesize skipjack, yellowfin, and bigeye tuna key life history attributes such as biogeography, trophic ecology, growth, and reproductive biology. In addition, we evaluate the available literature about their stock structure using different approaches such as analysis of fisheries data, genetic markers, otolith microchemistry and tagging, among others. Based on this review, we conclude that there is a clear lack of ocean basin-scale studies on skipjack, yellowfin and bigeye tuna life history, and that regional stock structure studies indicate that the panmictic population assumption of these stocks should be investigated further. Finally, we identify specific knowledge gaps that should be addressed with priority to ensure a sustainable and effective management of these species.
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Affiliation(s)
- Iraide Artetxe-Arrate
- AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Herrea Kaia, Pasaia, Gipuzkoa, Spain.
| | - Igaratza Fraile
- AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Herrea Kaia, Pasaia, Gipuzkoa, Spain
| | - Francis Marsac
- MARBEC, Univ Montpellier, CNRS, Ifremer, IRD, Sète, France; Institut de Recherche pour le Développement (IRD), Sète, France
| | - Jessica H Farley
- CSIRO Oceans and Atmosphere, Castray Esplanade, Hobart, TAS, Australia
| | - Naiara Rodriguez-Ezpeleta
- AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Herrea Kaia, Pasaia, Gipuzkoa, Spain
| | - Campbell R Davies
- CSIRO Oceans and Atmosphere, Castray Esplanade, Hobart, TAS, Australia
| | - Naomi P Clear
- CSIRO Oceans and Atmosphere, Castray Esplanade, Hobart, TAS, Australia
| | - Peter Grewe
- CSIRO Oceans and Atmosphere, Castray Esplanade, Hobart, TAS, Australia
| | - Hilario Murua
- AZTI, Marine Research, Basque Research and Technology Alliance (BRTA), Herrea Kaia, Pasaia, Gipuzkoa, Spain; International Seafood Sustainability Foundation, Washington, DC, United States
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14
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Ksepka SP, Hickson BH, Whelan NV, Bullard SA. A new species of Myxobolus Bütschli, 1882 (Bivalvulida: Myxobolidae) infecting stratum spongiosum of the imperiled sicklefin redhorse, Moxostoma sp. (Cypriniformes: Catostomidae) from the Little Tennessee River, North Carolina, USA. Folia Parasitol (Praha) 2020; 67. [PMID: 33173021 DOI: 10.14411/fp.2020.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/16/2020] [Indexed: 11/19/2022]
Abstract
The sicklefin redhorse, Moxostoma sp. (Cypriniformes: Catostomidae), is an innominate imperiled catostomid endemic to the Hiwassee and Little Tennessee river basins, which has been restricted to a few tributaries of these systems by impoundments. During collections to propagate sicklefin redhorse for reintroduction, a myxozoan, described herein, was observed infecting sicklefin redhorse in the Little Tennessee River Basin, North Carolina. Myxobolus naylori Ksepka et Bullard sp. n. infects the stratum spongiosum covering the scales of sicklefin redhorse. Myxospores of the new species differ from all congeners by the combination of having a mucous envelope, intercapsular process, and sutural markings as well as lacking an iodinophilic vacuole in the sporoplasm. A phylogenetic analysis of the 18S rDNA gene recovered the new species in a polytomy with Myxobolus marumotoi Li et Sato, 2014 and a clade comprised of species of Myxobolus Bütschli, 1882; Thelohanellus Kudo, 1933, and Dicauda Hoffman et Walker, 1973. Histological sections of infected sicklefin redhorse skin revealed myxospores within a plasmodium in the stratum spongiosum dorsal to scales, encapsulated in collagen fibres, and associated with focal erosion of scales directly beneath the plasmodium; in some instances, the scale was perforated by the plasmodium. The specificity of the new species to sicklefin redhorse may make it a useful biological tag to differentiate sicklefin redhorse from morphologically similar species. The new species is the first parasite reported from sicklefin redhorse, a species of concern to the United States Fish and Wildlife Service. No species of Myxobolus has been reported from species of Moxostoma in the Southeast United States. As it was observed that Myxobolus minutus Rosser, Griffin, Quiniou, Alberson, Woodyard, Mischker, Greenway, Wise et Pote, 2016 is a primary junior homonym of Myxobolus minutus Nemeczek, 1911, we propose the replacement name Myxobolus diminutus (Rosser, Griffin, Quiniou, Alberson, Woodyard, Mischker, Greenway, Wise et Pote, 2016).
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Affiliation(s)
- Steven P Ksepka
- Aquatic Parasitology Laboratory, School of Fisheries, Aquaculture, and Aquatic Sciences, College of Agriculture, Auburn University, Auburn, Alabama, USA
| | - Brian H Hickson
- Southeast Conservation Genetics Lab, Warm Springs Fish Technology Center, US Fish and Wildlife Service, Auburn, USA
| | - Nathan V Whelan
- Southeast Conservation Genetics Lab, Warm Springs Fish Technology Center, US Fish and Wildlife Service, Auburn, USA.,School of Fisheries, Aquaculture, and Aquatic Sciences, College of Agriculture, Auburn University, Auburn, Alabama, USA
| | - Stephen A Bullard
- Aquatic Parasitology Laboratory, School of Fisheries, Aquaculture, and Aquatic Sciences, College of Agriculture, Auburn University, Auburn, Alabama, USA
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15
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Santoro M, Palomba M, Mattiucci S, Osca D, Crocetta F. New Parasite Records for the Sunfish Mola mola in the Mediterranean Sea and Their Potential Use as Biological Tags for Long-Distance Host Migration. Front Vet Sci 2020; 7:579728. [PMID: 33195589 PMCID: PMC7641614 DOI: 10.3389/fvets.2020.579728] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 09/11/2020] [Indexed: 11/13/2022] Open
Abstract
Studies describing the parasite fauna of sunfish species from the Mediterranean Sea are to date limited, despite information gained through parasitological examination may reveal unknown ecological and biological aspects of both hosts and parasites. Moreover, recent molecular studies on sunfish taxonomy revealed the presence of two species belonging to the genus Mola in the Mediterranean basin, namely M. mola and M. alexandrini. These two fish taxa have long been synonymized or confused among them, which implies that the majority of the studies carried out so far reported the parasites infecting both species under a single host species, generally referred to as M. mola. We hereby investigated the parasite fauna of a 43 cm long M. mola specimen from the Mediterranean Sea, whose identification was confirmed by molecular tool, and provided the first evidence of the occurrence of the nematode Anisakis simplex (s.s.) and of the cestode Gymnorhynchus isuri in Mola species anywhere. The use of helminth species as biological tags for the sunfish is also discussed.
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Affiliation(s)
- Mario Santoro
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Naples, Italy
| | - Marialetizia Palomba
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - Simonetta Mattiucci
- Department of Public Health and Infectious Diseases, Sapienza University of Rome, Rome, Italy
| | - David Osca
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Naples, Italy
| | - Fabio Crocetta
- Department of Integrative Marine Ecology, Stazione Zoologica Anton Dohrn, Naples, Italy
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16
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Weak population structure and recent demographic expansion of the monogenean parasite Kapentagyrus spp. infecting clupeid fishes of Lake Tanganyika, East Africa. Int J Parasitol 2020; 50:471-486. [PMID: 32277985 DOI: 10.1016/j.ijpara.2020.02.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 02/14/2020] [Accepted: 02/18/2020] [Indexed: 11/22/2022]
Abstract
Lake Tanganyika, East Africa, is the oldest and deepest African Great Lake and harbours one of the most diverse fish assemblages on earth. Two clupeid fishes, Limnothrissa miodon and Stolothrissa tanganicae, constitute a major part of the total fish catch, making them indispensable for local food security. Parasites have been proposed as indicators of stock structure in highly mobile pelagic hosts. We examined the monogeneans Kapentagyrus limnotrissae and Kapentagyrus tanganicanus (Dactylogyridae) infecting these clupeids to explore the parasites' lake-wide population structure and patterns of demographic history. Samples were collected at seven sites distributed across three sub-basins of the lake. Intraspecific morphological variation of the monogeneans (n = 380) was analysed using morphometrics and geomorphometrics of sclerotised structures. Genetic population structure of both parasite species (n = 246) was assessed based on a 415 bp fragment of the mitochondrial cytochrome c oxidase subunit I (COI) gene. Overall, we observed a lack of clear geographical morphological differentiation in both parasites along a north-south axis. This lack of geographical population structure was also reflected by a large proportion of shared haplotypes, and a pattern of seemingly unrestricted gene flow between populations. Significant morphological and genetic differentiation between some populations might reflect temporal differentiation rather than geographical isolation. Overall, the shallow population structure of both species of Kapentagyrus reflects the near-panmictic population structure of both host species as previously reported. Morphological differences related to host species identity of K. tanganicanus were consistent with incipient speciation at the genetic level. Both parasite species experienced a recent demographic expansion, which might be linked to paleohydrological events. Finally, interspecific hybridisation was found in Kapentagyrus, representing the first case in dactylogyrid monogeneans.
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17
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Population co-divergence in common cuttlefish (Sepia officinalis) and its dicyemid parasite in the Mediterranean Sea. Sci Rep 2019; 9:14300. [PMID: 31586090 PMCID: PMC6778094 DOI: 10.1038/s41598-019-50555-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2019] [Accepted: 09/12/2019] [Indexed: 12/22/2022] Open
Abstract
Population structure and biogeography of marine organisms are formed by different drivers than in terrestrial organisms. Yet, very little information is available even for common marine organisms and even less for their associated parasites. Here we report the first analysis of population structure of both a cephalopod host (Sepia officinalis) and its dicyemid parasite, based on a homologous molecular marker (cytochrome oxidase I). We show that the population of common cuttlefish in the Mediterranean area is fragmented into subpopulations, with some areas featuring restricted level of gene flow. Amongst the studied areas, Sardinia was genetically the most diverse and Cyprus the most isolated. At a larger scale, across the Mediterranean, the population structure of the parasite shows co-diversification pattern with its host, but a slower rate of diversification. Differences between the two counterparts are more obvious at a finer scale, where parasite populations show increased level of fragmentation and lower local diversities. This discrepancy can be caused by local extinctions and replacements taking place more frequently in the dicyemid populations, due to their parasitic lifestyle.
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18
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Cammilleri G, Pulvirenti A, Costa A, Graci S, Collura R, Buscemi MD, Sciortino S, Vitale Badaco V, Vazzana M, Brunone M, Vella A, Di Bella C, Ferrantelli V. Seasonal trend of Anisakidae infestation in South Mediterranean bluefish. Nat Prod Res 2019; 34:158-161. [PMID: 30784309 DOI: 10.1080/14786419.2019.1573232] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
A total of 1104 fish samples from markets of Sicily were analysed for the detection and species identification of Anisakidae nematodes. The preliminary analysis of the fish samples showed the presence of 2459 larvae. All the fish species revealed different prevalence of infestation, with a maximum of 100% for Lepidopus caudatus and a minimum of 4.5% in Sardina pilchardus. The 80% of the larvae examined by PCR-RFLP analysis belonged to Anisakis pegreffii species. The seasonal infestation trend of Anisakis was evaluated in all the fish sample examined. The results of the seasonal infestation trend showed a marked connection with the ecological aspects of the fish species examined. As far as we know, this work report for the first time important ecological aspects of Lepidopus caudatus specimens of South Mediterranean. This work could be useful to plan a seasonal fishing strategy aimed at reducing the health risks related to Anisakis.
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Affiliation(s)
- Gaetano Cammilleri
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", Palermo, Italy
| | - Andrea Pulvirenti
- Dipartimento Scienze della Vita, Università degli studi di Modena e Reggio Emilia, Modena, Italy
| | - Antonella Costa
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", Palermo, Italy
| | - Stefania Graci
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", Palermo, Italy
| | - Rosaria Collura
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", Palermo, Italy
| | | | - Sonia Sciortino
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", Palermo, Italy
| | | | - Mirella Vazzana
- Dipartimento STEBICEF, Università degli studi di Palermo, Palermo, Italy
| | - Mariagrazia Brunone
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", Palermo, Italy
| | - Antonio Vella
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", Palermo, Italy
| | - Calogero Di Bella
- Istituto Zooprofilattico Sperimentale della Sicilia "A. Mirri", Palermo, Italy
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19
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Roumbedakis K, Drábková M, Tyml T, di Cristo C. A Perspective Around Cephalopods and Their Parasites, and Suggestions on How to Increase Knowledge in the Field. Front Physiol 2018; 9:1573. [PMID: 30515100 PMCID: PMC6255944 DOI: 10.3389/fphys.2018.01573] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2018] [Accepted: 10/22/2018] [Indexed: 01/05/2023] Open
Abstract
Although interest in several areas of cephalopod research has emerged over the last decades (e.g., neurobiology, aquaculture, genetics, and welfare), especially following their 2010 inclusion in the EU Directive on the use of animals for experimental purposes, knowledge regarding the parasites of cephalopods is lacking. Cephalopods can be intermediate, paratenic, or definitive hosts to a range of parasites with a wide variety of life cycle strategies. Here, we briefly review the current knowledge in cephalopod parasitological research, summarizing the main parasite groups that affect these animals. We also emphasize some topics that, in our view, should be addressed in future research, including: (i) better understanding of life cycles and transmission pathways of common cephalopod parasites; (ii) improve knowledge of all phases of the life cycle (i.e., paralarvae, juveniles, adults and senescent animals) and on species from polar deep sea regions; (iii) exploration of the potential of using cephalopod-parasite specificity to assess population boundaries of both, hosts and parasites; (iv) risk evaluation of the potential of standard aquacultural practices to result in parasite outbreaks; (v) evaluation and description of the physiological and behavioral effects of parasites on their cephalopod hosts; (vi) standardization of the methods for accurate parasite sampling and identification; (vii) implementation of the latest molecular methods to facilitate and enable research in above mentioned areas; (viii) sharing of information and samples among researchers and aquaculturists. In our view, addressing these topics would allow us to better understand complex host-parasite interactions, yield insights into cephalopod life history, and help improve the rearing and welfare of these animals in captivity.
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Affiliation(s)
- Katina Roumbedakis
- Dipartimento di Scienze e Tecnologie, Università degli Studi del Sannio, Benevento, Italy.,Association for Cephalopod Research, Naples, Italy
| | - Marie Drábková
- Department of Parasitology, Faculty of Science, University of South Bohemia, České Budějovice, Czechia.,Institute of Parasitology, Biology Centre Academy of Sciences of the Czech Republic, České Budějovice, Czechia
| | - Tomáš Tyml
- Department of Parasitology, Faculty of Science, University of South Bohemia, České Budějovice, Czechia.,Department of Botany and Zoology, Faculty of Science, Masaryk University, Brno, Czechia
| | - Carlo di Cristo
- Dipartimento di Scienze e Tecnologie, Università degli Studi del Sannio, Benevento, Italy
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Lanfranchi AL, Braicovich PE, Cantatore DMP, Irigoitia MM, Farber MD, Taglioretti V, Timi JT. Influence of confluent marine currents in an ecotonal region of the South-West Atlantic on the distribution of larval anisakids (Nematoda: Anisakidae). Parasit Vectors 2018; 11:583. [PMID: 30409156 PMCID: PMC6225687 DOI: 10.1186/s13071-018-3119-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 09/19/2018] [Indexed: 11/25/2022] Open
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. Electronic supplementary material The online version of this article (10.1186/s13071-018-3119-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Ana L Lanfranchi
- Laboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), (7600) Mar del Plata, 3350, Funes, Argentina.
| | - Paola E Braicovich
- Laboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), (7600) Mar del Plata, 3350, Funes, Argentina
| | - Delfina M P Cantatore
- Laboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), (7600) Mar del Plata, 3350, Funes, Argentina
| | - Manuel M Irigoitia
- Laboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), (7600) Mar del Plata, 3350, Funes, Argentina
| | - Marisa D Farber
- Instituto de Biotecnología, Instituto Nacional de Tecnología Agropecuaria (INTA), Hurlingham, Buenos Aires, Argentina
| | - Verónica Taglioretti
- Laboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), (7600) Mar del Plata, 3350, Funes, Argentina
| | - Juan T Timi
- Laboratorio de Ictioparasitología, Instituto de Investigaciones Marinas y Costeras (IIMyC), Facultad de Ciencias Exactas y Naturales, Universidad Nacional de Mar del Plata - Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), (7600) Mar del Plata, 3350, Funes, Argentina
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Mafra C, Mantovani C, Borges JN, Barcelos RM, Santos CP. Morphological and molecular diagnosis of Pseudoterranova decipiens (sensu stricto) (Anisakidae) in imported cod sold in Brazil. ACTA ACUST UNITED AC 2017; 24:209-15. [PMID: 26154961 DOI: 10.1590/s1984-29612015037] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Accepted: 04/23/2015] [Indexed: 11/22/2022]
Abstract
An anisakid nematode larva found in cod sold in the state of Minas Gerais, Brazil was studied by light and scanning electron microscopy and by a molecular approach. Mitochondrial cytochrome c-oxidase subunit 2 (mtDNA cox-2), 28S rRNA and ITS1, 5.8S and ITS2 regions were amplified using the polymerase chain reaction and sequenced to evaluate the phylogenetic relationships of the larva. The genetic profile confirmed that this larva belongs to the species Pseudoterranova decipiens (sensu stricto). This is the first molecular and ultrastructural study of Pseudoterranova decipiens (sensu stricto) in imported cod sold in Brazil. The health implications of these findings are discussed.
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Affiliation(s)
- Cláudio Mafra
- Laboratório de Parasitologia e Epidemiologia Molecular, Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Viçosa, MG, Brasil
| | - Cynthia Mantovani
- Laboratório de Parasitologia e Epidemiologia Molecular, Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Viçosa, MG, Brasil
| | - Juliana Novo Borges
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brasil
| | - Rafael Mazioli Barcelos
- Laboratório de Parasitologia e Epidemiologia Molecular, Departamento de Bioquímica e Biologia Molecular, Universidade Federal de Viçosa, Viçosa, MG, Brasil
| | - Cláudia Portes Santos
- Laboratório de Avaliação e Promoção da Saúde Ambiental, Instituto Oswaldo Cruz, Rio de Janeiro, RJ, Brasil
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22
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Martin D, Nygren A, Cruz-Rivera E. Proceraea exoryxae sp. nov. (Annelida, Syllidae, Autolytinae), the first known polychaete miner tunneling into the tunic of an ascidian. PeerJ 2017; 5:e3374. [PMID: 28584710 PMCID: PMC5457667 DOI: 10.7717/peerj.3374] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Accepted: 05/04/2017] [Indexed: 12/04/2022] Open
Abstract
While studying organisms living in association with the solitary tunicate Phallusia nigra (Ascidiacea, Ascidiidae) from a shallow fringing reef at Zeytouna Beach (Egyptian Red Sea), one of the collected ascidians showed peculiar perforations on its tunic. Once dissected, the perforations revealed to be the openings of a network of galleries excavated in the inner tunic (atrium) by at least six individuals of a polychaetous annelid. The worms belonged to the Autolytinae (Syllidae), a subfamily that is well known to include specialized predators and/or symbionts, mostly associated with cnidarians. The Red Sea worms are here described as Proceraea exoryxae sp. nov., which are anatomically distinguished by the combination of simple chaetae only in anterior chaetigers, and a unique trepan with 33 teeth in one outer ring where one large tooth alternates with one medium-sized tricuspid tooth, and one inner ring with small teeth located just behind the large teeth. Male and female epitokes were found together with atokous individuals within galleries. Proceraea exoryxae sp. nov. constitutes the first known miner in the Autolytinae and the second species in this taxon known to live symbiotically with ascidians. The implications of finding this specialized parasite are discussed considering that Phallusia nigra has been introduced worldwide, in tropical and sub-tropical ecosystems, where it has the potential of becoming invasive.
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Affiliation(s)
- Daniel Martin
- Centre d'Estudis Avançats de Blanes (CEAB-CSIC), Girona, Spain
| | | | - Edwin Cruz-Rivera
- Department of Biological Sciences, University of the Virgin Islands, St. Thomas, Virgin Islands, USA
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Kvach Y, Ondračková M, Bryjová A, Jurajda P. Parasites as biological tags of divergence in Central European gudgeon populations (Actinopterygii: Cyprinidae: Gobioninae). Biologia (Bratisl) 2017. [DOI: 10.1515/biolog-2017-0073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Haddaway NR, Watson MJ. On the benefits of systematic reviews for wildlife parasitology. Int J Parasitol Parasites Wildl 2016; 5:184-91. [PMID: 27617203 PMCID: PMC5005428 DOI: 10.1016/j.ijppaw.2016.05.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 05/15/2016] [Accepted: 05/20/2016] [Indexed: 12/15/2022]
Abstract
Systematic reviews and meta-analyses are widely accepted as the best means to synthesise quantitative or qualitative scientific evidence. Many scientific fields have embraced these more rigorous review techniques as a means to bring together large and complex bodies of literature and their data. Unfortunately, due to perceived difficulties and unfamiliarity with processes, other fields are not using these options to review their literature. One way to provide guidance for a specific field is to examine critically recent reviews and meta-analyses and to explain the advantages and disadvantages of the various review techniques. In this paper, we examine review papers in the emerging field of wildlife parasitology and compare five different literature review types-configurative narrative review, aggregative scoping review, aggregative literature review, aggregative meta-analysis, and aggregative systematic review. We found that most literature reviews did not adequately explain the methodology used to find the literature under review. We also found that most literature reviews were not comprehensive nor did they critically appraise the literature under review. Such a lack severely reduces the reliability of the reviews. We encourage all authors to consider using systematic reviews in the future, and for authors and peer-reviewers to be aware of the limitations of non-systematic reviews.
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Affiliation(s)
- Neal R. Haddaway
- MISTRA EviEM, Stockholm Environment Institute, Box 24218, 104 51 Stockholm, Sweden
| | - Maggie J. Watson
- Institute for Land Water and Society, Charles Sturt University, Albury, NSW 2640, Australia
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Özer A, Kornyychuk YM, Yurakhno V, Öztürk T. Seasonality and host-parasite interrelationship of Hysterothylacium aduncum (Nematoda) in whiting Merlangius merlangus off the southern and northern coasts of the Black Sea. Helminthologia 2016. [DOI: 10.1515/helmin-2016-0025] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Summary
In the present study, we investigated the comparative infection levels, ecology and host-parasite interrelationship of a nematode Hysterothylacium aduncum (Rudolphi, 1802) in whiting, Merlangius merlangus (L., 1758) in southern (Sinop) and northern (Balaklava Bay) coasts of the Black Sea for the first time. Fish were collected throughout a period from May 2011 to March 2014 from local fishermen. A total of 690 fish specimens near Sinop and 423 fish near Balaklava Bay were examined for parasites. Hysterothylacium aduncum was the only nematode species identified in the digestive tract of the Black Sea whiting Merlangius merlangus. Prevalence of infection, mean intensity and mean abundance values were determined according to season, length classes and sex of fish at both localities. These infection indices were always higher in Sinop samples than those of Balaklava Bay samples.
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Affiliation(s)
- A. Özer
- Sinop University, Faculty of Fisheries and Aquatic Sciences, 57000 Sinop, Turkey
| | - Y. M. Kornyychuk
- A. O. Kovalevsky Institute of Marine Biological Research of RAS, 2 Nakhimov ave., Sevastopol 299011, Russia
| | - V. Yurakhno
- A. O. Kovalevsky Institute of Marine Biological Research of RAS, 2 Nakhimov ave., Sevastopol 299011, Russia
| | - T. Öztürk
- Sinop University, Faculty of Fisheries and Aquatic Sciences, 57000 Sinop, Turkey
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Klapper R, Kochmann J, O’Hara RB, Karl H, Kuhn T. Parasites as Biological Tags for Stock Discrimination of Beaked Redfish (Sebastes mentella): Parasite Infra-Communities vs. Limited Resolution of Cytochrome Markers. PLoS One 2016; 11:e0153964. [PMID: 27104735 PMCID: PMC4841596 DOI: 10.1371/journal.pone.0153964] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 04/06/2016] [Indexed: 11/30/2022] Open
Abstract
The use of parasites as biological tags for discrimination of fish stocks has become a commonly used approach in fisheries management. Metazoan parasite community analysis and anisakid nematode population genetics based on a mitochondrial cytochrome marker were applied in order to assess the usefulness of the two parasitological methods for stock discrimination of beaked redfish Sebastes mentella of three fishing grounds in the North East Atlantic. Multivariate, model-based approaches demonstrated that the metazoan parasite fauna of beaked redfish from East Greenland differed from Tampen, northern North Sea, and Bear Island, Barents Sea. A joint model (latent variable model) was used to estimate the effects of covariates on parasite species and identified four parasite species as main source of differences among fishing grounds; namely Chondracanthus nodosus, Anisakis simplex s.s., Hysterothylacium aduncum, and Bothriocephalus scorpii. Due to its high abundance and differences between fishing grounds, Anisakis simplex s.s. was considered as a major biological tag for host stock differentiation. Whilst the sole examination of Anisakis simplex s.s. on a population genetic level is only of limited use, anisakid nematodes (in particular, A. simplex s.s.) can serve as biological tags on a parasite community level. This study confirmed the use of multivariate analyses as a tool to evaluate parasite infra-communities and to identify parasite species that might serve as biological tags. The present study suggests that S. mentella in the northern North Sea and Barents Sea is not sub-structured.
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Affiliation(s)
- Regina Klapper
- Department of Safety and Quality of Milk and Fish Products, Federal Research Institute of Nutrition and Food, Max Rubner-Institute, Hamburg, Germany
- Goethe-University, Institute for Ecology, Evolution and Diversity, Frankfurt am Main, Germany
- Senckenberg Gesellschaft für Naturforschung, Senckenberg Biodiversity and Climate Research Centre, Frankfurt am Main, Germany
- * E-mail:
| | - Judith Kochmann
- Goethe-University, Institute for Ecology, Evolution and Diversity, Frankfurt am Main, Germany
- Senckenberg Gesellschaft für Naturforschung, Senckenberg Biodiversity and Climate Research Centre, Frankfurt am Main, Germany
| | - Robert B. O’Hara
- Senckenberg Gesellschaft für Naturforschung, Senckenberg Biodiversity and Climate Research Centre, Frankfurt am Main, Germany
| | - Horst Karl
- Department of Safety and Quality of Milk and Fish Products, Federal Research Institute of Nutrition and Food, Max Rubner-Institute, Hamburg, Germany
| | - Thomas Kuhn
- Goethe-University, Institute for Ecology, Evolution and Diversity, Frankfurt am Main, Germany
- Senckenberg Gesellschaft für Naturforschung, Senckenberg Biodiversity and Climate Research Centre, Frankfurt am Main, Germany
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27
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Cooke SJ, Martins EG, Struthers DP, Gutowsky LFG, Power M, Doka SE, Dettmers JM, Crook DA, Lucas MC, Holbrook CM, Krueger CC. A moving target--incorporating knowledge of the spatial ecology of fish into the assessment and management of freshwater fish populations. ENVIRONMENTAL MONITORING AND ASSESSMENT 2016; 188:239. [PMID: 27004432 DOI: 10.1007/s10661-016-5228-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 03/03/2016] [Indexed: 05/26/2023]
Abstract
Freshwater fish move vertically and horizontally through the aquatic landscape for a variety of reasons, such as to find and exploit patchy resources or to locate essential habitats (e.g., for spawning). Inherent challenges exist with the assessment of fish populations because they are moving targets. We submit that quantifying and describing the spatial ecology of fish and their habitat is an important component of freshwater fishery assessment and management. With a growing number of tools available for studying the spatial ecology of fishes (e.g., telemetry, population genetics, hydroacoustics, otolith microchemistry, stable isotope analysis), new knowledge can now be generated and incorporated into biological assessment and fishery management. For example, knowing when, where, and how to deploy assessment gears is essential to inform, refine, or calibrate assessment protocols. Such information is also useful for quantifying or avoiding bycatch of imperiled species. Knowledge of habitat connectivity and usage can identify critically important migration corridors and habitats and can be used to improve our understanding of variables that influence spatial structuring of fish populations. Similarly, demographic processes are partly driven by the behavior of fish and mediated by environmental drivers. Information on these processes is critical to the development and application of realistic population dynamics models. Collectively, biological assessment, when informed by knowledge of spatial ecology, can provide managers with the ability to understand how and when fish and their habitats may be exposed to different threats. Naturally, this knowledge helps to better evaluate or develop strategies to protect the long-term viability of fishery production. Failure to understand the spatial ecology of fishes and to incorporate spatiotemporal data can bias population assessments and forecasts and potentially lead to ineffective or counterproductive management actions.
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Affiliation(s)
- Steven J Cooke
- Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental Science, Carleton University, Ottawa, ON, Canada.
| | - Eduardo G Martins
- Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental Science, Carleton University, Ottawa, ON, Canada
- Department of Biology, University of Waterloo, Waterloo, ON, Canada
| | - Daniel P Struthers
- Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental Science, Carleton University, Ottawa, ON, Canada
| | - Lee F G Gutowsky
- Fish Ecology and Conservation Physiology Laboratory, Department of Biology and Institute of Environmental Science, Carleton University, Ottawa, ON, Canada
| | - Michael Power
- Department of Biology, University of Waterloo, Waterloo, ON, Canada
| | - Susan E Doka
- Great Lakes Laboratory for Fisheries and Aquatic Science, Fisheries and Oceans Canada, Burlington, ON, Canada
| | | | - David A Crook
- Research Institute for the Environment and Livelihoods, Charles Darwin University, Darwin, NT, Australia
| | - Martyn C Lucas
- School of Biological and Biomedical Sciences, Durham University, Durham, UK
| | | | - Charles C Krueger
- Center for Systems Integration and Sustainability, Department of Fisheries and Wildlife, Michigan State University, Lansing, MI, USA
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Bao M, Roura A, Mota M, Nachón D, Antunes C, Cobo F, MacKenzie K, Pascual S. Macroparasites of allis shad (Alosa alosa) and twaite shad (Alosa fallax) of the Western Iberian Peninsula Rivers: ecological, phylogenetic and zoonotic insights. Parasitol Res 2015; 114:3721-39. [DOI: 10.1007/s00436-015-4601-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2015] [Accepted: 06/18/2015] [Indexed: 10/23/2022]
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Losee JP, Fisher J, Teel DJ, Baldwin RE, Marcogliese DJ, Jacobson KC. Growth and condition of juvenile coho salmon Oncorhynchus kisutch relate positively to species richness of trophically transmitted parasites. JOURNAL OF FISH BIOLOGY 2014; 85:1665-1681. [PMID: 25271907 DOI: 10.1111/jfb.12525] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 08/04/2014] [Indexed: 06/03/2023]
Abstract
The aims of this study were first, to test the hypothesis that metrics of fish growth and condition relate positively to parasite species richness (S(R)) in a salmonid host; second, to identify whether S(R) differs as a function of host origin; third, to identify whether acquisition of parasites through marine v. freshwater trophic interactions was related to growth and condition of juvenile salmonids. To evaluate these questions, species diversity of trophically transmitted parasites in juvenile coho salmon Oncorhynchus kisutch collected off the coast of the Oregon and Washington states, U.S.A. in June 2002 and 2004 were analysed. Fish infected with three or more parasite species scored highest in metrics of growth and condition. Fish originating from the Columbia River basin had lower S(R) than those from the Oregon coast, Washington coast and Puget Sound, WA. Parasites obtained through freshwater or marine trophic interactions were equally important in the relationship between S(R) and ocean growth and condition of juvenile O. kisutch salmon.
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Affiliation(s)
- J P Losee
- Washington Department of Fish and Wildlife, Fish Program, Olympia, Washington 98502, U.S.A
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