Trematodeos digeneticos hemiurideos e lecitasterideos e nematoides camalanideos e cuculanideos parasitando linguados coletados na costa do Estado do Rio de Janeiro, Brasil

Fonseca, Michelle Cristie Gonçalves da; Felizardo, Nilza Nunes; Torres, Eduardo José Lopes; Gomes, Delir Corrêa; Knoff, Marcelo

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Revista Brasileira de Parasitologia Veterinária

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Original Article • Rev. Bras. Parasitol. Vet. 31 (1) • 2022 • https://doi.org/10.1590/S1984-29612022011 copiar

Trematodeos digeneticos hemiurideos e lecitasterideos e nematoides camalanideos e cuculanideos parasitando linguados coletados na costa do Estado do Rio de Janeiro, Brasil

Autoria SCIMAGO INSTITUTIONS RANKINGS

Resumo

Um total de 132 espécimes de linguados (60 Paralichthys isosceles, 36 Paralichthys patagonicus e 36 Xystreurys rasile) foram coletados na costa do Estado do Rio de Janeiro, Brasil. Os peixes foram medidos, necropsiados e tiveram seus órgãos investigados para o encontro de trematodeos digenéticos, das famílias Hemiuridae e Lecithasteridae, e nematoides das famílias Camallanidae e Cucullanidae. A identificação taxonômica dos parasitos foi baseada nos caracteres morfológicos e morfométricos, usando-se as microscopias de campo claro e eletrônica de varredura. Os trematódeos, Lecithochirium monticellii e Aponurus laguncula, foram encontrados parasitando P. isosceles, P. patagonicus e X. rasile, enquanto os nematoides, Procamallanus (Spirocamallanus) halitrophus e Cucullanus bonaerensis, foram encontrados parasitando P. isosceles e X. rasile e P. isosceles, P. patagonicus e X. rasile, respectivamente. Os índices parasitários de prevalência, intensidade média, abundância média e amplitude de variação da intensidade de infeção, bem como os sítios de infecção foram avaliados para cada espécie de parasito. Este é o primeiro registro de P. patagonicus por L. monticellii; X. rasile por A. laguncula e P. (S.) halitrophus; e de P. isosceles e P. patagonicus por C. bonaerensis no Oceano Atlântico Sul Ocidental.

Palavras-chave:
Hemiuridae; Lecithasteridae; Camallanidae; Cucullanidae; linguados; Brasil

	Paralichthys isosceles	Paralichthys patagonicus	Xystreurys rasile
	(n = 11)	(n = 13)	(n = 11)
Body (L)	0.52-2.83 (1.19)	0.72-1.55 (1.16)	0.80-1.32 (1.00)
Body (W)	0.06-0.96 (0.28)	0.12-0.27 (0.21)	0.12-0.27 (0.17)
Pharynx (L)	0.03-0.07 (0.05)	0.03-0.07 (0.04)	0.03-0.06 (0.04)
Pharynx (W)	0.03-0.07 (0.05)	0.03-0.07 (0.04)	0.03-0.04 (0.03)
Oral sucker (L)	0.06-0.12 (0.10)	0.06-0.12 (0.07)	0.04-0.08 (0.05)
Oral sucker (W)	0.06-0.13 (0.09)	0.06-0.14 (0.08)	0.05-0.17 (0.68)
Ventral sucker (L)	0.11-0.37 (0.26)	0.14-0.27 (0.19)	0.09-0.23 (0.16)
Ventral sucker (W)	0.10-0.37 (0.22)	0.13-0.25 (0.18)	0.10-0.20 (0.14)
Sinus sac (L)	0.04-0.08 (0.05)	0.03-0.05 (0.04)	0.05-0.07 (0.06)
Seminal vesicle (L)	0.10-0.31 (0.16)	0.10-0.13 (0.12)	0.08-0.17 (0.13)
Seminal vesicle (W)	0.03-0.17 (0.07)	0.05-0.06 (0.05)	0.01-0.06 (0.02)
Anterior testicle (L)	0.04-0.31 (0.11)	0.05-0.12 (0.09)	0.06-0.10 (0.08)
Anterior testicle (W)	0.05-0.19 (0.11)	0.07-0.11 (0.08)	0.06-0.11 (0.08)
Posterior testicle (L)	0.05-0.25 (0.12)	0.06-0.13 (0.10)	0.07-0.13 (0.09)
Posterior testicle (W)	0.05-0.19 (0.11)	0.06-0.12 (0.09)	0.06-0.11 (0.08)
Ovary (L)	0.05-0.25 (0.10)	0.06-0.12 (0.08)	0.05-0.11 (0.07)
Ovary (W)	0.04-0.18 (0.11)	0.05-0.14 (0.10)	0.06-0.13 (0.07)
Viteline gland (L)	0.06-0.27 (0.13)	0.08-0.31 (0.18)	0.08-0.25 (0.18)
Viteline gland (W)	0.04-0.20 (0.12)	0.04-0.21 (0.13)	0.07-0.21 (0.13)
Ecsoma (L)	0.10-0.36 (0.23)	0.11-0.35 (0.19)	0.09-0.24 (0.15)
Ecsoma (W)	0.05-0.25 (0.12)	0.07-0.13 (0.12)	0.08-0.12 (0.10)
Eggs (L)*	12.50-27.50 (19.31)	12.50-35.00 (16.60)	12.50-27.50 (19.26)
Eggs (W)^* * Measurements in micrometers and number of measured eggs = 50.	7.50-17.50 (10.58)	7.50-20.00 (11.75)	10.00-15.00 (11.37)

	Paralichthys isosceles	Paralichthys patagonicus	Xystreurys rasile
	(n = 10)	(n = 13)	(n = 8)
Body (L)	1.17-2.10 (1.45)	0.67-1.75 (1.10)	0.50-0.87 (0.76)
Body (W)	0.22-0.42 (0.31)	0.10-0.45 (0.30)	0.10-0.20 (0.15)
Pharynx (L)	0.02-0.05 (0.04)	0.03-0.08 (0.04)	0.03-0.05 (0.03)
Pharynx (W)	0.02-0.06 (0.05)	0.03-0.08 (0.05)	0.03-0.05 (0.04)
Oral sucker (L)	0.08-0.17 (0.10)	0.06-0.14 (0.09)	0.06-0.08 (0.07)
Oral sucker (W)	0.07-0.17 (0.09)	0.05-0.25 (0.10)	0.06-0.10 (0.08)
Ventral sucker (L)	0.09-0.19 (0.15)	0.11-0.28 (0.21)	0.12-0.14 (0.13)
Ventral sucker (W)	0.08-0.16 (0.13)	0.09-0.27 (0.20)	0.09-0.15 (0.12)
Sinus sac (L)	0.02-0.04 (0.03)	0.04-0.06 (0.05)	0.02-0.07 (0.04)
Seminal vesicle (L)	0.07-0.12 (0.09)	0.07-0.21 (0.13)	0.06-0.11 (0.09)
Seminal vesicle (W)	0.03-0.09 (0.05)	0.04-0.14 (0.07)	0.04-0.05 (0.04)
Right testicle (L)	0.09-0.16 (0.12)	0.06-0.12 (0.08)	0.05-0.10 (0.08)
Right testicle (W)	0.07-0.15 (0.11)	0.05-0.12 (0.09)	0.05-0.11 (0.07)
Left testicle (L)	0.08-0.14 (0.11)	0.06-0.12 (0.09)	0.05-0.10 (0.07)
Left testicle (W)	0.08-0.12 (0.10)	0.05-0.15 (0.10)	0.05-0.10 (0.08)
Ovary (L)	0.08-0.15 (0.09)	0.06-0.13 (0.08)	0.04-0.08 (0.06)
Ovary (W)	0.08-0.14 (0.09)	0.06-0.12 (0.08)	0.05-0.09 (0.06)
Viteline gland (L)	0.15-0.25 (0.18)	0.07-0.47 (0.23)	0.06-0.15 (0.10)
Viteline gland (W)	0.10-0.27 (0.17)	0.06-0.38 (0.21)	0.07-0.14 (0.10)
Eggs (L)^* * Measurements in micrometers and number of measured eggs = 50.	20.00-35.00 (28.75)	20.00-47.50 (33.48)	12.50-37.50 (27.56)
Eggs (W)*	12.50-15.00 (13.90)	12.50-22.50 (17.26)	7.50-30.00 (14.60)

	Paralichthys isosceles		Xystreurys rasile
	Males (n = 6)	Females (n = 6)	Males (n = 6)	Females (n = 6)
Body (L)	16.00-20.00 (18.00)	24.6-27.5 (26.17)	16.50-25.90 (21.50)	33.72-39.42 (36.76)
Body (W)	0.16-0.30 (0.25)	0.40-0.50 (0.45)	0.27-0.50 (0.36)	0.60-0.75 (0.66)
Buccal capsule (L)	0.08-0.09 (0.09)	0.10-0.11 (0.10)	0.09-0.11 (0.10)	0.11-0.13 (0.12)
Buccal capsule (W)	0.06-0.09 (0.07)	0.09-0.11 (0.10)	0.08-0.11 (0.09)	0.10-0.11 (0.10)
Esophagus (L)	1.20-1.40 (1.29)	1.34-1.53 (1.42)	1.21-1.40 (1.30)	1.59-2.42 (1.84)
Muscular esophagus (L)	0.40-0.50 (0.45)	0.58-0.63 (0.60)	0.45-0.54 (0.50)	0.64-0.70 (0.67)
Glandular esophagus (L)	0.80-0.90 (0.84)	0.76-0.90 (0.82)	0.71-0.88 (0.80)	0.93-1.73 (1.17)
Nerve ring^a a distance to the anterior end;	0.28-0.33 (0.30)	0.32-0.33 (0.32)	0.26-0.31 (0.29)	0.30-0.40 (0.35)
Vulva^a	-	12.25-13.80 (13.05)	-	17.30-19.50 (18.42)
Anus^b b distance to the posterior end.	0.16-0.17 (0.16)	0.21-0.25 (0.23)	0.15-0.20 (0.16)	0.22-0.26 (0.24)
Right spicule (L)	0.36-0.45 (0.40)	-	0.31-0.48 (0.40)	-
Left spicule (L)	0.22-0.24 (0.23)	-	0.20-0.29 (0.24)	-

	Paralichthys isosceles	Paralichthys patagonicus		Xystreurys rasile
	Females (n = 10)	Males (n = 7)	Females (n = 13)	Male (n =1)	Females (n = 12)
Body (L)	2.59-14.20 (4.99)	2.50-9.37 (6.45)	2.52-9.42 (4.35)	10.20	3.02-12.27 (4.76)
Body (W)	0.17-0.40 (0.18)	0.10-0.45 (0.28)	0.10-0.32 (0.16)	0.30	0.10-0.35 (0.17)
Esophagus (L)	0.36-1.02 (0.55)	0.45-1.18 (0.93)	0.50-1.17 (0.65)	1.14	0.45-1.22 (0.59)
Esophagus (W)	0.09-0.17 (0.10)	0.07-0.09 (0.15)	0.07-0.20 (0.10)	0.16	0.06-0.17 (0.09)
Buccal capsule (L)	0.04-0.23 (0.08)	0.07-0.20 (0.13)	0.05-0.18 (0.08)	1.00	0.03-0.20 (0.08)
Nerve ring^a	0.19-0.45 (0.20)	0.20-0.50 (0.36)	0.21-0.43 (0.26)	0.40	0.17-0.46 (0.24)
Precloacal sucker^b	-	0.29-0.86 (0.59)	-	0.89	-
Right spicule (L)	-	0.90-1.04 (0.98)	-	1.40	-
Left spicule (L)	-	0.96-1.11 (1.02)	-	1.10	-
Gubernaculum	-	0.03-0.04 (0.03)	-	0.06	-
Vulva^a a distance to the anterior end;	1.68-7.38 (3.81)	-	2.00-7.12 (3.41)	-	2.10-9.27 (4.44)
Tail^b b Distance to the posterior end.	0.12-0.40 (0.19)	0.13-0.21 (0.16)	0.12-0.31 (0.18)	0.16	0.30-0.45 (0.21)
Eggs (L)^* * Measurements in micrometers and number of measured eggs = 50.	-	-	50.00-90.00 (60.00)	-	-
Eggs (L)*	-	-	30.00-50.00 (40.00)		-

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E-mail: cbpv_rbpv.fcav@unesp.br

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[1] *Corresponding author: Marcelo Knoff. E-mail: knoffm@ioc.fiocruz.br