scholarly journals Metazoan parasites of Mandi-amarelo Pimelodus maculatus and of Jundiá Rhamdia quelen (Osteichthyes: Siluriformes) of Paraíba do Sul River, Volta Redonda, Rio de Janeiro

2010 ◽  
Vol 19 (3) ◽  
pp. 157-163 ◽  
Author(s):  
Aline Cristine Pinto Venancio ◽  
Gesilene Ribeiro de Aguiar ◽  
Patrícia da Silva Lopes ◽  
Dimitri Ramos Alves
Keyword(s):  
Rio De Janeiro ◽  
Dominant Species ◽  
Parasite Species ◽  
Mean Value ◽  
The Body ◽  
Metazoan Parasites ◽  
Total Length ◽  
Rhamdia Quelen ◽  
Pimelodus Maculatus ◽  
Paraíba Do Sul River

Forty-one specimens of mandi-amarelo Pimelodus maculatus Lacépède, 1803 (Siluriformes: Pimelodidae) and 54 specimens of jundiá Rhamdia quelen (Quoy & Gaimard, 1824) (Siluriformes: Heptapteridae) were collected from the Paraíba do Sul River, Volta Redonda, State of Rio de Janeiro, Brazil between November 2007 and October 2008. These fish underwent necropsy so their infracommunities of metazoan parasites could be studied. The same three species of parasites were collected in the two fish species studied. These were one monogenean, one nematode, and one hirudinean. Cucullanus pinnai (Travassos, Artiga, and Pereira, 1928) (Nematoda: Cucullanidae) and Aphanoblastella sp. (Monogenea: Dactylogyridae) were the dominant species with the highest prevalence in P. maculatus and R. quelen. The parasite species of P. maculatus and R. quelen showed an atypical over-dispersed pattern of distribution. No parasite species showed significant correlation between the body total length of the siluriform hosts and their prevalence and abundance. The parasite species richness showed a mean value of 0.87 ± 0.67 (0 -2) and 0.57 ± 0.56 (0 -2) in P. maculatus and R. quelen, respectively, and no correlation with the body total length.

scholarly journals Ecologia da comunidade de metazoários parasitos do dourado, Coryphaena hippurus Linnaeus, 1758, (Osteichthyes: Coryphaenidae) do litoral do Estado do Rio de Janeiro, Brasil.

2017 ◽  
Vol 6 (16) ◽  
pp. 111
Author(s):  
Livia Castro Marques ◽  
Dimitri Ramos Alves
Keyword(s):  
Species Richness ◽  
Rio De Janeiro ◽  
Dominant Species ◽  
Parasite Species ◽  
Metazoan Parasites ◽  
Parasite Abundance ◽  
Parasite Species Richness ◽  
Metazoan Parasite ◽  
Total Length ◽  
Coryphaena Hippurus

From April 2009 and July 2010, 68 specimens of common dolphinfish Coryphaena hippurus Linnaeus, 1758 (Osteichthyes: Coryphaenidae) collected from coast of the state of Rio de Janeiro (21-23° S, 41-45° W), were necropsied to study their infracommunities of metazoan parasites. Seventeen species of metazoan parasites were collected. All fish were parasitized by one or more metazoan. The digeneans were the majority of the specimens collected, with 90.7%. Dinurus tornatus (Rudolphi, 1819) was the dominant species with highest abundance, prevalence, frequency of dominance and mean relative dominance. The parasites species of C. hippurus showed a typical aggregate pattern of distribution. None metazoan parasites species showed correlation between total length and prevalence and parasite abundance. The metazoan parasite infracommunities C. hippurus showed dominance of endoparasites (digeneans) and no correlation between abundance and parasite species richness and the total length of the host.

scholarly journals Ecologia da comunidade de metazoários parasitos do dourado, Coryphaena hippurus Linnaeus, 1758, (Osteichthyes: Coryphaenidae) do litoral do Estado do Rio de Janeiro, Brasil.

2017 ◽  
Vol 6 (16) ◽  
pp. 111-122
Author(s):  
Livia Castro Marques ◽  
Dimitri Ramos Alves
Keyword(s):  
Species Richness ◽  
Rio De Janeiro ◽  
Dominant Species ◽  
Parasite Species ◽  
Metazoan Parasites ◽  
Parasite Abundance ◽  
Parasite Species Richness ◽  
Metazoan Parasite ◽  
Total Length ◽  
Coryphaena Hippurus

From April 2009 and July 2010, 68 specimens of common dolphinfish Coryphaena hippurus Linnaeus, 1758 (Osteichthyes: Coryphaenidae) collected from coast of the state of Rio de Janeiro (21-23° S, 41-45° W), were necropsied to study their infracommunities of metazoan parasites. Seventeen species of metazoan parasites were collected. All fish were parasitized by one or more metazoan. The digeneans were the majority of the specimens collected, with 90.7%. Dinurus tornatus (Rudolphi, 1819) was the dominant species with highest abundance, prevalence, frequency of dominance and mean relative dominance. The parasites species of C. hippurus showed a typical aggregate pattern of distribution. None metazoan parasites species showed correlation between total length and prevalence and parasite abundance. The metazoan parasite infracommunities C. hippurus showed dominance of endoparasites (digeneans) and no correlation between abundance and parasite species richness and the total length of the host.

scholarly journals Community ecology of the metazoan parasites of namorado sandperches, Pseudopercis numida Miranda-Ribeiro, 1903 and P. semifasciata Cuvier, 1829 (Perciformes: Pinguipedidae), from the coastal zone of the State of Rio de Janeiro, Brazil

2008 ◽  
Vol 68 (2) ◽  
pp. 269-278 ◽  
Author(s):  
JL. Luque ◽  
NN. Felizardo ◽  
LER. Tavares
Keyword(s):  
Species Richness ◽  
Rio De Janeiro ◽  
Parasite Species ◽  
Neotropical Region ◽  
Component Community ◽  
New Host ◽  
Metazoan Parasites ◽  
Parasite Abundance ◽  
Parasite Species Richness ◽  
Total Length

One hundred and twenty-eight specimens of namorado sandperches, 62 P. numida and 66 P. semifasciata, collected between October 2002 and June 2003 off the Cabo Frio, Rio de Janeiro, Brazil (Lat 23° S and Long 42° W), were examined to study their metazoan parasites. Parasite communities of these fish were composed basically of endoparasites, mainly digenean and cestodes species, with low prevalence and abundance but having high parasite species richness values (at the component community level). Among these values, that found for P. numida is the highest so far recorded for marine fishes from the Neotropical Region. Thirty-nine species of metazoan parasites were collected: 36 from P. numida and 28 from P. semifasciata. Twenty-five parasite species were common to both species of namorado sandperches. Pseudopercis numida and P. semifasciata are new host records for all parasite species collected, with the exception of Microcotyle pseudopercis. Choanodera sp., Leurodera decora, Neolebouria georgenascimentoi, and Proctoeces sp. which were recorded for the first time in the South American Atlantic Ocean. Gnathia sp. from P. numida and Scolex pleuronectis from P. semifasciata were the species having the greatest dominance frequency. Parasite abundance in P. numida and P. semifasciata were positively correlated with the host total length. Only in P. numida was parasite species richness correlated positively with the host total length. No significant differences between endoparasite infracommunities of P. numida and P. semifasciata were detected. The ectoparasites of P. numida had higher values for parasite abundance, parasite richness, Brillouin index, evenness index, and Berger-Parker index than those of the ectoparasites of P. semifasciata. Comparisons among all ecto- and endoparasites showed the ectoparasites of P. numida as the most heterogeneous group. Low similarity values were observed among the three types of parasite infracommunities of the two hosts.

scholarly journals Metazoan parasites of Mugil curema (Osteichthyes: Mugilidae) from the coastal Rio de Janeiro

2014 ◽  
Vol 9 (24) ◽  
pp. 67-75
Author(s):  
Dimitri Ramos Alves
Keyword(s):  
Species Richness ◽  
Negative Correlation ◽  
Rio De Janeiro ◽  
Dominant Species ◽  
Parasite Species ◽  
Brazilian Coast ◽  
Metazoan Parasites ◽  
Parasite Abundance ◽  
Mean Intensity ◽  
Parasite Species Richness

From May to August 2011, 55 specimens of white mullet Mugil curema Valenciennes, 1836 (Osteichthyes: Mugilidae) collected from coast of the State of Rio de Janeiro (21-23° S, 41-45° W), were necropsied to study their communities of metazoan parasites. Two species of metazoan parasites were collected: Floridosentis mugilis Machado, 1951 (Acantocephala: Neoechinorhynchidae) and Metamicrocotyla macracantha Alexander, 1954 (Monogenea: Microcotylidae). The majority of the fishes (n = 41; 74.5%) were parasitized by at least one metazoan species. Three hundred twenty-four specimens, with an average of 5.8 ± 7.6 per host, were collected. Floridosentis mugilis constituted the majority of specimens collected (n = 319), was the dominant species, with highest prevalence, abundance, intensity and mean intensity. The parasites species showed a typical over-dispersed pattern of distribution. The abundance of the species F. mugilis and total parasites collected showed negative correlation with host total length. The metazoan parasites community of M. curema showed dominance of endoparasites, no correlation between parasite abundance and the lack of relationship between the sex of host and parasite rates. Mugil curema showed low parasite species richness when compared with studies on the parasitic fauna of mugilids of the Brazilian coast.

scholarly journals Community ecology of the metazoan parasites of the Atlantic thread herring, Opisthonema oglinum (Lesueur, 1818) (Actinopterygii: Clupeidae) from the Sepetiba Bay, Rio de Janeiro, Brazil

2020 ◽  
Author(s):  
L. Chaves ◽  
F. Paschoal
Keyword(s):  
Rio De Janeiro ◽  
Parasite Species ◽  
Host Record ◽  
Southeastern Brazil ◽  
Brazilian Coast ◽  
New Host ◽  
Metazoan Parasites ◽  
Sepetiba Bay ◽  
Total Length ◽  
The Mean

Abstract This study aimed to evaluate the parasitic fauna of Opisthonema oglinum (Lesueur, 1818) from Southeastern Brazil. Between September 2017 and March 2018, a total of 100 specimens of O. oglinum from the Sepetiba Bay, Rio de Janeiro, Brazil (22°54'S, 43°34'W) were examined. Ninety one specimens of O. oglinum were parasitized by at least one species of metazoan with a mean of 5.84 ± 7.98 parasites/fish. Seven species were collected: 2 digeneans, 2 monogeneans, 2 copepods and 1 nematode. The digenean Parahemiurus merus (Linton) was the most abundant and dominant species, representing 43% of metazoan parasites collected. The parasite species richness was positively correlated with the total length of the hosts. Only Neobomolochus elongatus Cressey showed a positive correlation between host's total length and parasite prevalence. The mean parasite species diversity was not correlated with host's total length, but significant differences among the mean parasite diversity between males and females was observed. Opisthonema oglinum represents a new host record for Caligus mutabilis Wilson, Hysterothylacium sp. and Cribomazocraes travassosi Santos and Kohn. The copepod N. elongatus is recorded for the first time on the Brazilian coast.

scholarly journals Community ecology of the metazoan parasites of Brazilian sardinella, Sardinella brasiliensis (Steindachner, 1879) (Actinopterygii: Clupeidae) from the coastal zone of the State of Rio de Janeiro, Brazil

2015 ◽  
Vol 75 (3) ◽  
pp. 736-741 ◽  
Author(s):  
J Moreira ◽  
F Paschoal ◽  
AD Cezar ◽  
JL Luque
Keyword(s):  
Rio De Janeiro ◽  
Positive Association ◽  
Host Record ◽  
Parasite Community ◽  
The State ◽  
Significant Positive Association ◽  
New Host ◽  
Metazoan Parasites ◽  
Parasite Abundance ◽  
Total Length

AbstractBetween March 2010 and August 2011 were necropsied 100 specimens of Sardinella brasiliensis (Steindachner, 1879), from the coast of the State of Rio de Janeiro, Brazil (22°51’S, 43°56’W), to study their community of metazoan parasites. All specimens of S. brasiliensis were parasitized by at least one species of metazoan parasite, with mean of 68.7 ± 71.2 parasites/fish. Eleven species were collected: 3 digeneans, 1 monogenean, 2 cestodes, 3 nematodes and 2 copepods. The digenean Myosaccium ecaude Montgomery was the most abundant, prevalent, and dominant species, representing 72.7% of metazoan parasites collected, showing positive correlation between host’s total length and parasite abundance. Total parasite abundance was positively correlated with host’s total length. Three pairs of adult endoparasites showed significant positive association and covariation. The parasite community of S. brasiliensis showed dominance by digeneans. Sardinella brasiliensis represents new host record for most found parasite species.

scholarly journals Community ecology of the metazoan parasites of white sea catfish, Netuma barba (Osteichthyes: Ariidae), from the coastal zone of the state of Rio de Janeiro, Brazil

2004 ◽  
Vol 64 (1) ◽  
pp. 169-176 ◽  
Author(s):  
L. E. R. Tavares ◽  
J. L. Luque
Keyword(s):  
Coastal Zone ◽  
Rio De Janeiro ◽  
Positive Association ◽  
Parasite Prevalence ◽  
Parasite Community ◽  
The State ◽  
Metazoan Parasites ◽  
Total Length ◽  
Interspecific Associations ◽  
Host Sex

Between March 2000 and April 2001, 63 specimens of N. barba from Angra dos Reis, coastal zone of the State of Rio de Janeiro (23°0'S, 44°19'W), Brazil, were necropsied to study their infracommunities of metazoan parasites. Fifteen species of metazoan parasites were collected: 2 digeneans, 1 monogenean, 2 cestodes, 1 acantocephalan, 2 nematodes, 6 copepods, and 1 hirudinean. Ninety-six percent of the catfishes were parasitized by at least one metazoan parasite species. A total of 646 individual parasites was collected, with mean of 10.3 ± 16.6 parasites/fish. The copepods were 37.5% of the total parasite specimens collected. Lepeophtheirus monacanthus was the most dominant species and the only species with abundance positively correlated with the host total length. Host sex did not influence parasite prevalence or mean abundance of any species. The mean diversity in the infracommunities of N. barba was H = 0.130 ± 0.115 with no correlation with host's total length and without differences in relation to sex of the host. One pair of endoparasites (Dinosoma clupeola and Pseudoacanthostomum floridensis) showed positive association and covariation between their abundances and prevalences. The parasite community of N. barba from Rio de Janeiro can be defined as a complex of species with low prevalence and abundance and with scarcity of interspecific associations. However, because of both the presence of assemblages of sympatric ariid species as well as the spawning behavior characteristic of these fishes, additional comparative studies of the parasite component communities of ariids are necessaries to elucidate this pattern.

scholarly journals Metazoan fauna parasitizing Peckoltia braueri and Pterygoplichthys pardalis (Loricariidae) catfishes from the northeastern Brazilian Amazon

2017 ◽  
Vol 47 (2) ◽  
pp. 147-154 ◽  
Author(s):  
Adriele Carolina Franco CARDOSO ◽  
Marcos Sidney Brito OLIVEIRA ◽  
Ligia Rigôr NEVES ◽  
Marcos TAVARES-DIAS
Keyword(s):  
Species Richness ◽  
Dominant Species ◽  
Parasite Species ◽  
River System ◽  
Brazilian Amazon ◽  
Parasite Fauna ◽  
Shannon Index ◽  
The Body ◽  
High Prevalence ◽  
Northern Brazil

ABSTRACT This study investigated the metazoan parasite fauna in Peckoltia braueri and Pterygoplichthys pardalis from a tributary of the Amazon River system, in northern Brazil. In P. braueri, 630 parasites were collected, belonging to Unilatus unilatus, Nothogyrodactylus sp., Genarchella genarchella, Proteocephalus sp., Gorytocephalus elongorchis, Dolops longicauda and Hirudinea gen. sp., with a dominance of monogenean species. In P. pardalis, 120 parasites were collected, belonging to U. unilatus, Acanthostomum gnerii and Gorytocephalus elongorchis, and this acanthocephalan was the dominant species. In both hosts, the parasites presented clumped distribution, high prevalence, low abundance, low Shannon diversity, and low species richness, with a predominance of helminth species. In P. braueri, host length was positively correlated with parasite species richness and Shannon index. There was no difference in the body condition of parasitized and non-parasitized fishes in either host. This was the first report of these parasites in P. braueri and P. pardalis.

scholarly journals Helminth fauna parasitizing Pimelodus pohli (Actinopterygii: Pimelodidae) from the upper São Francisco River, Brazil

2014 ◽  
Vol 23 (3) ◽  
pp. 375-382 ◽  
Author(s):  
Claudia Silveira São Sabas ◽  
Marilia Carvalho Brasil-Sato
Keyword(s):  
South America ◽  
River Basin ◽  
Dominant Species ◽  
Parasite Species ◽  
Parasite Fauna ◽  
Helminth Fauna ◽  
Sao Francisco River ◽  
Total Length ◽  
São Francisco River ◽  
First Time

The parasite fauna of catfish, Pimelodus pohli, from the São Francisco River Basin is presented. A total of 45 catfish from the upper São Francisco River (45°15′44″W 18°13′25″S), were examined from July 2009 to September 2011. Forty-three catfish (95.5%) were infected by at least one parasite species, with 885 parasite specimens being found, distributed across 17 species: Monogenea (Demidospermus uncusvalidus, Pavanelliella pavanellii, and Scleroductus sp.); Eucestoda (plerocercoids of Proteocephalidea); Digenea (metacercariae of Austrodiplostomum compactum, adults of Auriculostoma platense and Kalipharynx sp., and juvenile of Prosthenhystera obesa); Nematoda (larvae of Contracaecum sp., Hysterothylacium sp., Procamallanus pimelodus, Procamallanus sp., and unidentified of Cucullanidae, and adults of Cucullanus caballeroi, Philometra sp., and Procamallanus freitasi); and Acanthocephala (adults of Neoechinorhynchus pimelodi). Procamallanus freitasi and Scleroductus sp. were the taxa with the highest prevalence. Demidospermus uncusvalidus, P. freitasi, and Scleroductus sp. were the dominant species. The host's sex did not influence parasitic indexes; however, the total length of the catfish did appear to have some influence. The parasites, with except for P. obesa, were registered for the first time in P. pohli, as well as the occurrence of Kalipharynx sp. and C. caballeroi among pimelodid hosts from São Francisco River and South America.

scholarly journals Community ecology of metazoan parasites of the anchovy Anchoa tricolor (Osteichthyes: Engraulidae) from the coastal zone of the State of Rio de Janeiro, Brazil

2005 ◽  
Vol 65 (3) ◽  
pp. 533-540 ◽  
Author(s):  
L. E. R. Tavares ◽  
J. L. Luque ◽  
A. J. A. Bicudo
Keyword(s):  
Species Richness ◽  
Coastal Zone ◽  
Rio De Janeiro ◽  
Parasite Community ◽  
The State ◽  
Significant Positive Association ◽  
Metazoan Parasites ◽  
Parasite Abundance ◽  
Metazoan Parasite ◽  
Total Length

Between October 2001 and March 2002, 103 specimens of A. tricolor from Angra dos Reis (23°01'S, 44°19'W), in the coastal zone of the State of Rio de Janeiro, Brazil, were analyzed in order to study their metazoan parasite infracommunities. Ten species of metazoan parasites were collected: 4 digeneans, 1 cestode, 1 acantocephalan, 2 nematodes, 1 copepod, and 1 hirudinean; 77.7% of the fishes were parasitized by one or more metazoan, with a mean of 3.5 ± 6.2 parasite/fish. Digenean was the most dominant with 4 species that accounted for 53.2% of the total parasites collected; Ergasilus sp. was the most abundant species. Abundance and prevalence of Parahemiurus merus (Linton, 1910) were positively correlated with the total length of host. Relationships between total body length of fish and both total parasite abundance and mean parasite species richness were observed. Mean parasite diversity of species was correlated to host's total length, with significant differences found between male and female fishes. Two pairs of larval species showed significant positive association and covariation. The metazoan parasite infracommunities of A. tricolor presented dominance of larval endoparasites; correlation of parasite abundance, diversity, and species richness with host total length; and low number of parasite interspecific relationships. The parasite community of A. tricolor showed some similarities with the parasite community of another South American Atlantic engraulid.

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