Parasites of marine, freshwater and farmed fishes of Portugal: a review (original) (raw)
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English version Ecoparasitogy of Deep Fishes from Portugal- 1st volume
English version Ecoparasitogy of Deep Fishes from Portugal, 2007
The present work is the first study of parasitofauna of the Portuguese Coast that includes some species of deep fishes (12 orders, 18 families and 24 species). Works of this type in Portugal had basically appeared associates only to a host, the black-scabbard fish , in two areas: Sesimbra and Madeira. For the first time a parasitological study was made in Paralepis atlantica, where we find Digenea 1 and Anisakis sp. Cestode Paragrillotia sp. that parasite Lycodes vahlii presented very different morphometric characteristics from that it is registered for the described species, being very possibly a new species. In this study 34 species of metazoan parasites had been found. The following parasites and in the respective hosts had been detected for the first time: Amphipoda in Sebastes fasciatus; Anisakis sp. in Alepocephalus bairdii; Ascaridida in Synaphobranchus kaupi; Capillaridae in L. pallidus; Contracaecum sp. in Diretmus argenteus; Cucullanus sp. in Notacanthus chemnitzii; Digenea 5 in Cottunculus thomsonii; Hysterothylacium sp. in L. pallidus and L. vahlii; Lecithophyllum botryophorum in L. vahlii; Litobrothidae in Anarhichas lupus; Lophoura edwardsi in S. kaupi; Paragrillotia sp. in L. vahlii; Rhabdochonna sp. in L. vahlii; Raphidascaris sp. in Macrourus berglax; Steringophorus sp. in L. vahlii; Spinitecus sp. 2 in Glyptocephalus cynoglossus; Spinitecus sp. 3 in C. thomsonii; Spirurida in M. berglax; Tetraphyllidae larva 1 in A. bairdii. Although the following species of parasites and respective hosts had been already cited in previous studies and other geographic regions, with this work had been detected for the first time in Portugal: Anisakis sp. in R. hippoglossoides and M. berglax ; b) Contracaecum sp. in Reinhardtius hippoglossoides and S. fasciatus; c) Corynossoma sp. in R. hippoglossoides; d) Hysterothylacium sp. in M. berglax; e) Sphyrion lumpi in M. berglax; f) Spinitectus sp. 1, in M. berglax. In that it respects to the species of more frequent parasites in this inquiry we have: Digenean - Steringophorus sp. and Lecisthaster sp.; Nematoda- Anisakis sp.; Contracaecum sp. and Hysterothylacium sp. and Copepoda - Sphyrion lumpi. The orders of fish that in this study had shown greater diversity of parasites had been Perciformes; Gadiformes; Pleuronectiformes; Scorpaeniformes and Osmeriformes. The orders that in this study had not met parasites had been: Myctophiformes; Squaliformes and Stomiiformes. Relatively to A. carbo, this is the first study of the community of parasites of the black-scabbard fish of the Açores, that presented as dominant species Anisakis sp. In our study, the community of R. hippoglossoides parasites presented as dominant species Anisakis sp. and Contracaecum sp., with high intensities. Determined fish analyzed here they present species responsible parasites for zoonosis. are they : some anisakids, B. vasculosum, and Corynosoma, sp. which that they have commercial interest: A. carbo; M. berglax; R. hippoglossoides; S. fasciatus and S. mentella pointing for create measures of prevention in order to prevent the contamination of human being.
Parasitic Lesions in Fish in the Federal District, Brazil
2021
Background : Brazil has a vast territory and favorable climatic conditions that allow the cultivation of freshwater fish. The intensification of the productive system can cause an imbalance in the aquatic environment as a result of poor water quality, nutritional deficiencies and infectious or parasitic diseases. The laboratory diagnosis and the determination of the prevalence of the main lesions, which occur in a certain region, help to guide towards the etiological diagnosis. This study aimed to describe the main parasitic lesions in fish in the routine at the Veterinary Pathology Laboratory of the Universidade de Brasilia . Material, Methods & Results : All records of fish with parasitic lesions were recovered. Those cases in which there was an intralesional parasite and which presented lesions compatible with the parasite were included. The screening of ectoparasites was done by scraping the superficial mucus from the gills and skin. Organ sections were routinely processed for ...
Parasites of the freshwater fish trade in Brazil: science metric study
Pesquisa Veterinária Brasileira, 2013
This paper presents a science metric study of parasites of fish farming in Brazil, including a significant review of the literature. The methodology used was based on researching articles in three different databases, carried out on May 2012: ISI (Institute for Scientific Information), SciELO (Scientific Electronic Library Online), and Google Academic. The number of articles on fish parasites is mounting (currently over 110), having much increased since 1995. However, the quantity is still low compared with the amount of papers on parasites of fish from natural environments. In Brazil, the farmed fish that have been studied the most are pacu, tilapia and tambaqui. Monogeneans represent the most prevalent group, followed by protozoa and crustaceans. The regions most researched were the southeast and south, making up 84% of the total literature. The main issue addressed in articles was pathology, followed by treatment and record. In conclusion, the treatment of parasitic diseases of f...
Parasites of four ornamental fish from the Chumucui river Bragança, Pará, Brazil
Revista Brasileira de Parasitologia Veterinária, 2013
The objective of the present study was to evaluate the parasite fauna of four species of ornamental fish collected in the Chumucuí River, municipality of Bragança, Pará, Brazil. From June 2006 to December 2007. Fishes (n=307) belonging to four species were collected, including 23 specimens of Moenkhausia sanctaefilomenae (redeye tetra), 37 Carnegiella strigata (marbled hatchetfish), 7 Chilodus punctatus (spotted headstander), and 240 Astyanax bimaculatus (twospot astyanax). The parasites found belonged to three taxa: monogeneans in the gills, nematodes (larvae of Capillaria sp. and Contracaecum sp.) in the digestive tract and liver and acanthocephalans (Quadrigyrus torquatus, Q. brasiliensis and Q. nickoli) in the stomach and intestine. Astyanax bimaculatus presented higher prevalence of acanthocephalans in the wet season, and lower prevalence of nematodes in the dry season. The possible importance of these parasites in the exportation of ornamental fish is discussed. Resumo O objetivo do presente trabalho foi avaliar a fauna parasitária de quatro espécies de peixes ornamentais capturados no rio Chumucuí, no município de Bragança-PA. Foram coletados um total de 307 peixes pertencentes a 4 espécies, sendo elas: Moenkhausia sanctaefilomenae (olho de fogo, n = 23), Carnegiella strigata (borboleta, n = 37), Chilodus punctatus (cabeça-para-baixo, n = 7) e Astyanax bimaculatus (lambari, n = 240) coletados de junho de 2006 a dezembro de 2007. Foram observados 3 taxa parasitando os peixes: monogenéticos nas brânquias, nematóides (larvas de Capillaria sp. e Contracaecum sp.) no trato digestório e fígado e acantocéfalos (Quadrigyrus torquatus, Q. brasiliensis e Q. nickoli) no estômago e intestino. Astyanax bimaculatus apresentou maior prevalência de acantocéfalos na estação chuvosa, menor prevalência de nematóides na estação seca. Discute-se a eventual importância destes parasitas na exportação de peixes ornamentais.
Revista Brasileira de Parasitologia Veterinária, 2020
This study identified the parasitic species in juvenile freshwater finfishes during the fattening stage, from a fish farm located in the Zona da Mata (MG), southeastern Brazil, and revealed both macro and microscopical lesions in fish gills. A total of 172 juvenile fishes of different species (Oreochromis niloticus, Ictalurus punctatus, Ctenopharyngodon idella, Cyprinus carpio, Astyanax bimaculatus and Brycon amazonicus) were transported to a laboratory in São Paulo city. The fish were sedated and then euthanized for parasitological analysis. All fish were infected by at least one parasite species. Ten different species of parasites were identified: Apiosoma sp., Epistylis sp., Ichthyobodo sp., trichodinids, Piscinoodinium pillulare, Ichthyophthirius multifiliis, Tetrahymena sp., monogeneans, Centrocestus formosanus metacercariae, and Dermocystidium sp. The best management practices and lack of sanitary control were also discussed.
Recent studies on parasitic infections of fresh water cultivated fish in the state of São
2002
ABSTRACT. The present work relates diagnosticated cases of fish diseases in the state of São Paulo, Brazil between January/1999 and December/2000. During 1999, the monogenean was the most important parasite (72.9%), followed by Piscinoodinium pillulare (43.2%), Henneguya piaractus (34.2%), Ichthyophthirius multifiliis (23.4%) and copepodids of Lernaea cyprinacea (9.0%). However, in 2000, monogenean showed 78.9%, trichodinids 52.1%, P. pillulare 35.7%, I. multifiliis 29.8 % and L. cyprinacea 11.9%. The most infected fish was Piaractus mesopotamicus, followed by Leporinus macrocephalus, hybrid "tambacu " and Oreochromis niloticus. This work showed the highest susceptibility of “tambacu ” and L. macrocephalus to P. pillulare and P. mesopotamicus to monogenean Anacanthorus penilabiatus. The authors emphasize the importance of prophylaxis in farmed-fish, as well as adequate transport and water quality. The regular accompaniment of fish health, strategic applications of sodium c...
Archives of Veterinary Science, 2020
The objective of this study was to identify the parasitic fauna, the impact of the parasite-host relationship and the potential risk of transmission of zoonotic parasites in fish marketed in the Metropolitan Region of Recife (Northeastern of Brazil). Ectoparasites and endoparasites were collected in Pseudupeneus maculatus (n=34), Lutjanus synagris (n=23), and Ocyurus chrysurus (n=20). Organs and/or tissues with and without parasites were processed by routine histological techniques. Overall, 43 (55.8%) specimens were parasitized by: Rocinela signata; Lernanthropus sp.; Lernaeolophus sultanus; Goussia sp.; Haliotrema sp.; Raphidascaris (Ichthyascaris) sp.; Cucullanus sp.; larvae of Pseudoterranova sp., Contracaecum sp., Anisakis sp., and Trypanorhyncha. Macroscopic and/or histological alterations were associated with Lernantrhopus sp. (gills) and Pseudoterranova sp. (liver) in O. chrysurus; R. signata (gills) in P. maculatus; and Lernaeolophus sultanus (maxilla) of L. synagris. Histo...
Gill parasites of fish from two estuaries in northeastern Brazil: new hosts and geographical records
Anais da Academia Brasileira de Ciências
Parasites are important components of communities and constitute great part of the biological diversity found in ecosystems, providing valuable information about their hosts and the environment in which they live. However, despite its importance, parasitic diversity is still not well known in some regions of Brazil, especially with respect to fish parasites in the Northeast Region. The present study aims to perform the survey of gill parasites of fish from two tropical estuaries located in northeastern Brazil: Paraíba and Mamanguape rivers. Two collections were made in each estuary, one during the dry period (November / 2013) and the other during the rainy season (July / 2014). The fish were caught using a beach seine net, dragged along the main channel margin. After the identification, biometry and necropsy of the fish, their parasites were collected, stored and identified. For each species of parasite, the values of prevalence, mean intensity and mean abundance were calculated. Of the 882 examined fish, belonging to four species, 145 were parasitized by at least one species of parasite. In total, 18 taxa of parasites of the groups Monogenea, Digenea, Nematoda, Copepoda and Isopoda were recorded, being the copepod Acusicola brasiliensis the most abundant species of parasite.