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Registros recuperados: 7
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Anphira branchialis GEN. ET SP. NOV. (CRUSTACEA, ISOPODA, CYMOTHOIDAE) A GILL CAVITY PARASITE OF PIRANHAS (Serrasalmus SPP.) IN THE BRAZILIAN AMAZON Acta Amazonica
THATCHER,Vernon E..
Anphira branchialisgen. et sp. nov. (Crustacea, Isopoda, Cymothoidae) is described from the dorsal areas of the gill chambers of three species of piranhas (Serrasalmusspp.). The fishes were caught in rivers near Manaus, Amazonas State and on Maracá island, Federal Territory of Roraima, Brasil. The new genus and species is characterized by having large, flat coxal plates on ail 7 pereonites. These plates usually extend beyond the margins of the following segments and the 7th ones extend nearly to the pleotelson and cover the lateral margins of the pleonites. The mandible of this species is rounded, "foot shaped" and without incisor. The mandibular palp is short and stout. The maxillules have 3 terminal and 2 subterminal spines. The pleopods are simple...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Isopod; Cymothoid; Parasite; Piranha; Amazon.
Ano: 1993 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671993000300297
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Vanamea GEN. NOV. FOR Livoneca symmetricaVAN NAME,1925, (CRUSTACEA, ISOPODA, CYMOTHOIDAE) AND A REDESCRIPTION OF THE SPECIES BASED ON SPECIMENS FROM BRAZILIAN PIRANHAS Acta Amazonica
THATCHER,Vernon E..
Studies of the cymothoid isopod Livoneca symmetricaVan Name, 1925, showed that this species has characters that preclude its inclusion in LivonecaLeach, 1818, or in any other known genus. The species is redescribed on the basis of male and female specimens from the mouth cavities of Amazonian piranhas (Serrasalmus spilopleura(Kner) and S. elongatusKner) and Vanameagen. nov. is proposed for it. The new genus is defined as having: a cephalon that is not immersed in pereonite 1; mandibles that are "foot-shaped" and without incisors, pereopods that are long and unequal in size and shape; a pleon that is not immersed in the pereon; and a pleotelson that is inflated anteriorly and medially.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Isopod; Cymothoid; Parasite; Piranha; Amazon.
Ano: 1993 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59671993000300287
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Ectoparasitic crustaceans on mullet, Mugil curema (Osteichthyes: Mugilidae) in the coastal waters of Rio Grande do Norte State, Brazil - doi: 10.4025/actascibiolsci.v33i3.6796 Biological Sciences
Cavalcanti, Elizete Teresinha Santos; Universidade Federal Rural de Pernambuco; Takemoto, Ricardo Massato; UEM; Alves, Leucio Câmara; Universidade Federal Rural de Pernambuco; Chellappa, Sathyabama; Universidade Federal do Rio Grande do Norte; Pavanelli, Gilberto Cezar; Universidade Estadual de Maringá.
White mullet is a commercial fish species abundant in the coastal waters of Brazil. This study investigated the occurrence of crustacean ectoparasites on white mullet, Mugil curema captured from the littoral waters of Rio Grande do Norte State, Brazil. From 2006 to 2007, 31 individuals of M. curema were captured and encountered ectoparasites were observed, identified and counted. M. curema was parasitized by ectoparasitic crustaceans, caligid copepods, Caligus bonito and Caligus sp.; ergasilid copepods, Ergasilus versicolor and E. lizae; and isopod Cymothoa spinipalpa. Of the caligids detected, 66.66% were C. bonito and 33.33% Caligus sp. C. bonito occurred on males of M. curema during the drought season and Caligus sp. occurred on females during the...
Palavras-chave: 2.13.00.00-3 marine fish; Caligids; Isopod; Ecological indices of parasites Parasitologia marine fish; Caligids; Isopod; Ecological indices of parasites.
Ano: 2011 URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/6796
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Parasitism of the isopod Riggia puyensis Rodríguez-Haro et al. in two armored catfish from Pastaza Province (Ecuador) Anais da ABC (AABC)
PLAUL,SILVIA E.; RODRÍGUEZ-HARO,CECILIA; MARTORELLI,SERGIO R.; BARBEITO,CLAUDIO G..
Abstract: Riggia puyensis, an ectoparasitic isopod, was collected in juvenile Chaetostoma breve and Chaetostoma microps host specimens from the Amazonian region of Ecuador. The aim of this work is to study the possible injury that the parasite causes in its host. R. puyensis was found covered by a fold of the skin, which formed a sort of pocket or pouch within the host’s peritoneal cavity. The alterations described in the epidermis were associated with the mechanical action of the isopod inside the pouch.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Armored catfish; Cymothoidae; Isopod; Riggia puyensis.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000700611
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Effects of temperature and salinity on the survival rates of coxicerberus ramosae (Albuquerque, 1978), an interstitial isopod of a Sandy Beach on the coast of Brazil BABT
Albuquerque,Elaine Figueiredo; Meurer,Bruno; Netto,Godofredo da Camara Genofre.
The tolerance to the combined effects of temperature and salinity was investigated in the interstitial isopod Coxicerberus ramosae (Albuquerque, 1978), a species of intertidal zone of sandy beaches in Rio de Janeiro, Brazil. The animals were collected on Praia Vermelha Beach. The experiments lasted 24 h and nine salinities and seven temperatures were used for a total of 63 combinations. Thirty animals were tested in each combination. The species showed high survival in most of the combinations. The temperature of 35 ºC was lethal and at 5 ºC, the animals tolerated only a narrow range of salinities. The statistical analyses showed that the effects of temperature and salinity were significant on the survival, which confirmed the euryhalinity and eurythermy...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Interstitial; Isopod; Resistance; Temperature; Salinity; Coxicerberus.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000500015
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Hierarchical analysis of mtDNA variation and the use of mtDNA for isopod (Crustacea: Peracarida: Isopoda) systematics Naturalis
Wetzer, R..
Carefully collected molecular data and rigorous analyses are revolutionizing today’s phylogenetic studies. Although molecular data have been used to estimate various invertebrate phylogenies lor more than a decade, this study is the first survey of different regions of mitochondrial DNA in isopod crustaceans assessing sequence divergence and hence the usefulness of these regions to infer phylogeny at different hierarchical levels. 1 evaluate three loci from the mitochondrial genome (two ribosomal RNAs (12S, 16S) and one protein-coding (COI)) for their appropriateness in inferring isopod phylogeny at the suborder level and below. The patterns are similar for all three loci with the most speciose suborders of isopods also having the most divergent...
Tipo: Article / Letter to the editor Palavras-chave: Mitochondrial DNA; Isopod; Crustacea; Molecular; 12S rRNA; 16S rRNA; COI.
Ano: 2001 URL: http://www.repository.naturalis.nl/record/534397
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Anilocra montti sp. n. (Isopoda, Cymothoidae) a parasite of caged salmon and trout in Chile Zoologia
Thatcher,Vernon E.; Blumenfeldt,Carlos Lobos.
Anilocra montti sp. n. (Isopoda, Cymothoidae) is described from the mouths and branchial chambers of caged salmon and trout from Puerto Montt, Chile. The description is based on a detailed study of 30 male specimens. No females were found, indicating that salminoids are not the normal hosts of the parasite. The new species differs from others in the genus by having carinae on pereopods 4-7, a pleon that is abruptly narrower than the pereon, second pleopods without appendices masculina, a pleotelson that is wider than long and uropods with subequal rami.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Isopod; Cymothoid; Fish parasite; Chile; South America.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000500023
Registros recuperados: 7
Primeira ... 1 ... Última
 

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