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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Diversidade da fauna de metazoários parasitos de Pimelodus blochii Valenciennes, 1840 (Siluriformes: Pimelodidae) de lagos de várzea da Amazônia brasileira

Martins, Máyra do Socorro Alves 30 May 2018 (has links)
Submitted by Inácio de Oliveira Lima Neto (inacio.neto@inpa.gov.br) on 2018-10-03T18:01:39Z No. of bitstreams: 2 Máyra Martins Dissertação.pdf: 2580776 bytes, checksum: b29c75376fc2e44e266959c1f6119cec (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) / Made available in DSpace on 2018-10-03T18:01:39Z (GMT). No. of bitstreams: 2 Máyra Martins Dissertação.pdf: 2580776 bytes, checksum: b29c75376fc2e44e266959c1f6119cec (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5) Previous issue date: 2018-05-30 / Were analyzed 45 specimens of Pimelodus blochii captured during four expeditions, in July of 2015, November and December of 2016, in the complex of lakes from Catalão, Iranduba, Amazonas. The mean measure of the fishes was 23.9 - 8.5 (13.9) cm of standard length and weighted a mean 113.78 - 11.8 (51.9) g. A total of 1.726 indivuals included in three phyla and four groups were found. Twelve species found parasng P. blochii. Seven species of Monogenoidea: 527 Demidospermus paravalenciennesi, 336 Demidospermus sp., 321 Demidospermus uncusvalidus, 223 Ameloblastella satoi; 123 Ameloblastella sp.1; 109 Ameloblastella sp.2 and 34 Ameloblastella sp.3. Two species of Digenea: thirteen specimens of Dadaytrema oxycephala and nine metacercariae of Diplostomum spathaceum. One species of Nematoda: 20 larvae of Anisakis sp. One species of Copepoda: ten individuals of Ergasilus sp. One species of Branchiura: one specimen of Argulus chicomendesi. The central species were: A. satoi, D. uncusyalidus, D. parayalenciennesi and Demidospermus sp. 1. The secondary species were Ameloblastella sp.1 and Ameloblastella sp.2 The satellites were: Ameloblastella sp.3, Austrodiplostomum compactum, Dadaytrema oxycephala, Anisakis sp. And Ergasilus sp. The parasite species presented aggregate distribuition. Only the abundance of A. satoi and D. parayalenciennesi presented positive correlation significant with the length of P. blochii. The indices of biodiversity indicated that the complex of lakes from Catalão have low diversity of parasitic in P. blochii. / Foram analisados 45 espécimes de Pimelodus blochii capturados durante quatro expedições, em julho de 2015, junho, novembro e dezembro de 2016, no complexo de lagos Catalão, Iranduba, Amazonas. Os peixes mediam em média 23,9 - 8,5 (13,9) cm de comprimento padrão e pesavam 113,78- 11,8 (51,9). Um total de 1.726 indivíduos parasitos incluídos em três filos e quatro grupos foram encontrados. Doze espécies parasitavam P. blochii. Sete espécies de Monogenoidea: 527 Demidospermus paravalenciennes; 336 Demidospermus sp.1; 321 D. uncusvalidus; 223 Ameloblastella satoi; 123 Ameloblastella sp.1.; 109 Ameloblastella sp.2 e 34 Ameloblastella sp.3. Duas espécies de Digenea: treze espécimes de Dadaytrema oxycephala e nove metacercárias de Austrodiplostomum compactum. Uma espécie de Nematoda: 20 larvas de Anisakis sp. Uma espécie de Copepoda: dez indivíduos de Ergasilus sp. Uma espécie de Branchiura: um indivíduo de Argulus chicomendesi. As espécies centrais foram: A. satoi, D. uncusvalidus, D. paravalenciennesi e Demidospermus sp.1. As secundárias foram Ameloblastella sp.1 e Ameloblastella sp.2. As espécies satélites foram: Ameloblastella sp.3, Austrodiplostomum compactum, Dadaytrema oxycephala, Anisakis sp. e Ergasilus sp. As espécies parasitas apresentaram distribuição agregada. Somente a abundância de A. satoi e D. paravalenciennesi apresentou correlação positiva significativa com o comprimento de P. blochii. Os índices de diversidade indicaram que o complexo de lagos Catalão é de baixa diversidade para a parasitofauna de P. blochii.
2

Ecological studies on the parasites of the three-spined stickleback "Gasterosteus aculeatus" L

Khatun, Ayesha January 1973 (has links)
No description available.
3

A fauna de parasitas de Serrasalmus rhombeus (Linneaus, 1776) (Characiformes: Characidae) de lagos de várzea da Amazônia central

Lima, Mariel Acácio de 22 June 2010 (has links)
Submitted by Dominick Jesus (dominickdejesus@hotmail.com) on 2016-01-26T19:58:31Z No. of bitstreams: 2 Dissertação_Mariel Acácio de Lima.pdf: 759009 bytes, checksum: 66124494cccad3765391f056a598baa3 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) / Made available in DSpace on 2016-01-26T19:58:31Z (GMT). No. of bitstreams: 2 Dissertação_Mariel Acácio de Lima.pdf: 759009 bytes, checksum: 66124494cccad3765391f056a598baa3 (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) Previous issue date: 2010-06-22 / Conselho Nacional de Pesquisa e Desenvolvimento Científico e Tecnológico - CNPq / The parasites fauna of 45 Serrasalmus rhombeus colleted in dry season from six floodplain lakes of the Solimões River, in December of 2007, were studied. Seventeen were males and 28 females and 44 (97.7%) of fish were parasitized. A total of 2017 parasites were collected, 17 species of Monogenoidea: Amphithecium diclonophallum; A. falcatum; A. muricatum; Anacanthorus amazonicus; A. jegui; A. scapanus; A. sciponophalus; A. serrasalmi; Anacanthorus sp.1, Anacanthorus sp.2, Anacanthorus sp.3, Anacanthorus sp.4, Anacanthorus sp.5. Notothecium cyphophalum; Notothecium sp.1; Notozothecium aegidatum; N. teinodendrum. Two species of Digenea, Clinostomum sp. e metacercariae. One species of Nematoda, Procamallanus (S) inopinatus. Two species of Copepoda, Ergasilus yumaricus e Myracetyma piraya and one of Branchiura, Argulus chicomendesi. The parasites were most abundant. Procamallanus (S) inopinatus, Ergasilus yumaricus and A. chicomendesi are new records of occurrence in S. rhombeus. Thirty-five S. rhombeus were infected with cysts of metacercariae of digenetic in the skin. Fish that had the highest numbers of parasites were the Campina and Ananá lakes. The prevalence of fish from all lakes studied was 100%, except in Lake Maraca which was 90%. The number of parasites in the males of S. rhombeus was higher than in females. Larger fish had higher number of parasites. / Foi estudada a fauna de parasitos de 45 Serrasalmus rhombeus coletados na estação de seca em seis lagos de várzea do rio Solimões, em dezembro de 2007. Dezessete eram machos e 28 fêmeas e 44 (97,7%) dos peixes estavam parasitados. Um total de 2.017 parasitos foi coletado, 17 espécies de Monogenoidea: Amphithecium diclonophallum; A. falcatum; A. muricatum; Anacanthorus amazonicus; A. jegui; A. scapanus; A. sciponophalus; A. serrasalmi; Anacanthorus sp.1; Anacanthorus sp.2; Anacanthorus sp.3; Anacanthorus sp.4; Anacanthorus sp.5; Notothecium cyphophalum; Notothecium sp.1; Notozothecium aegidatum; N. teinodendrum. Duas de Digenea Clinostomum sp. e larvas de digenea encistadas. Uma espécie de Nematoda Procamallanus (S) inopinatus. Duas espécies de Copepoda Ergasilus yumaricus e Myracetyma piraya. Uma de Branchiura, Argulus chicomendesi. Os ectoparasitos foram mais abundantes. Procamallanus (S) inopinatus, Ergasilus yumaricus. e A. chicomendesi são novos registros de ocorrência em S. rhombeus. Trinta e cinco S. rhombeus estavam parasitados com larvas de digenéticos encistadas na pele. Os peixes que apresentaram os índices parasitários mais elevados foram dos lagos Campina e Anana. Os machos de S. rhombeus estavam mais parasitados que as fêmeas. Os peixes maiores apresentaram maiores quantidades de parasitos.
4

A study of the gastrointestinal helminths of the phalacrocoracidae and the anhingidae in the Northern Province, South Africa

Mokgalong, Nehemiah Mahlo January 1996 (has links)
Thesis (Ph.D. (Zoology)) -- University of the North, 1996 / Refer to document

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