Nematodes of zoonotic importance in <i>Cynoscion guatucupa</i> (Pisces) in the state of Rio de Janeiro

Fontenelle, Gabrielle; Knoff, Marcelo; Felizardo, Nilza Nunes; Lopes, Leila Maria Silva; São Clemente, Sérgio Carmona de

doi:10.1590/S1984-29612013005000019

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Full Article • Rev. Bras. Parasitol. Vet. 22 (2) • June 2013 • https://doi.org/10.1590/S1984-29612013005000019 copy

Nematodes of zoonotic importance in Cynoscion guatucupa (Pisces) in the state of Rio de Janeiro

Nematóides de importância zoonótica em Cynoscion guatucupa (Pisces) no estado do Rio de Janeiro

Authorship SCIMAGO INSTITUTIONS RANKINGS

Between January and August 2012, thirty specimens of Cynoscion guatucupa (Cuvier, 1830) caught off coast of the municipality of Itajaí, state of Santa Catarina, Brazil (26° 54′ 28″ S and 48° 39′ 43″ W) and commercialized in the state of Rio de Janeiro were investigated for the presence of zoonotic nematodes. In total 853 larvae of four nematode parasite species were found. There were three species of Anisakidae: three larvae ofAnisakis sp., with prevalence (P) of 10%, mean intensity (MI) of 1.0, mean abundance (MA) of 0.1 and infection site (IS) in the mesentery; five of Terranova sp. with P = 13.3%, MI = 1.25, MA = 0.17, range of infection (RI) from 1 to 2 and IS = mesentery; and seven ofContracaecum sp. with P = 6.6%, MI = 3.5, MA = 0.23, RI = 1 to 4 and IS = mesentery and abdominal cavity. There was one species of Raphidascarididae: 838 larvae of Hysterothylacium deardorffoverstreetorum with P = 83.3%, MI = 33.52, MA = 27.93, RI = 1 to 219 and IS = mesentery, liver serosa and abdominal cavity. This is the first report of larvae of Anisakis sp. andContracaecum sp in C. guatucupa in Brazil.

Hysterothylacium deardorffoverstreetorum;Anisakis sp.; Terranova sp.;Contracaecum sp.; Cynoscion guatucupa

Hysterothylacium deardorffoverstreetorum; Anisakis sp.; Terranova sp.; Contracaecum sp.; Cynoscion guatucupa

	P (%)	MI	MA	RI	IS	CHIOC
Anisakis sp.	10	1	0.1	-	M	35853, 35854
Contracaecum sp.	6.6	3.5	0.23	1-4	M, AC	35855
Terranova sp.	13.3	1.25	0.17	1-2	M	35856
Hysterothylacium deardorffoverstreetorum	83.3	33.52	27.93	1-219	M, LS, AC	35857, 35858

	Anisakis sp.	Contracaecum sp.	Terranova sp.	Hysterothylacium deardorffoverstreetorum
Length	22.25-23.50 (22.33)	2.9-4.25 (3.37)	4.5-6.75 (4.92)	9.35-13.75 (11.16)
Width	0.42-0.45 (0.44)	0.11-0.15 (0.13)	0.12-0.21 (0.16)	0.31-0.40 (0.36)
Larval tooth	present	present	present	absent
Excretory pore^* * Inconspicuous in some specimens;	opens beneath boring tooth	opens beneath boring tooth	opens beneath boring tooth	opens beneath nerve ring
Nerve ring^ From anterior end;	0.30-0.35 (0.32)	0.17-0.18 (0.17)	0.20-0.29 (0.24)	0.40-0.46 (0.43)
Esophagus	1.80-1.90 (1.85)	0.43-0.55 (0.48)	0.60-0.85 (0.71)	0.75-1.0 (0.87)
VL	0.85-0.94 (0.89)	0.05-0.075 (0.06)	0.22-0.32 (0.27)	0.10-0.13 (0.11)
VW	0.30-0.34 (0.31)	0.03-0.065 (0.042)	0.1-0.14 (0.12)	0.10-0.13 (0.11)
Vap	absent	0.40-0.47 (0.44)	absent	0.70-0.9 (0.78)
Ic	absent	0.20-0.31 (0.26)	0.39-0.62 (0.49)	0.30-0.33 (0.31)
Tail	0.10-0.15 (0.12)	0.08-0.11 (0.093)	0.10-0.15 (0.12)	0.19-0.32 (0.27)
Mucron	0.015-0.025 (0.020)	absent	absent	0.0025-0.0040 (0.0035)

Colégio Brasileiro de Parasitologia Veterinária FCAV/UNESP - Departamento de Patologia Veterinária, Via de acesso Prof. Paulo Donato Castellane s/n, Zona Rural, , 14884-900 Jaboticabal - SP, Brasil, Fone: (16) 3209-7100 RAMAL 7934 - Jaboticabal - SP - Brazil
E-mail: cbpv_rbpv.fcav@unesp.br

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[1] * Corresponding author: Marcelo Knoff, Laboratório de Helmintos Parasitos de Vertebrados, Instituto Oswaldo Cruz, Fundação Oswaldo Cruz – FIOCRUZ, Av. Brasil, 4365, Manguinhos, CEP 21045-900, Rio de Janeiro, RJ, Brazil, e-mail: knoffm@ioc.fiocruz.br