Comparative Parasitology 68(2) 2001 - Peru State College

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Comp. Parasitol. 68(2), 2001, pp. 190-195 Some Adult Endohelminths Parasitizing Freshwater Fishes from the Atlantic Drainages of Nicaragua M. LEOPOLDINA AGUIRRE-MACEDO, M TOMAS ScHOLZ,1-2 DAVID GONZALEZ-SOUS,' VICTOR M. VIDAL-MARTINEZ,' PETR PosEL,3 GREGORY ARJONA-TORRES,' SVETLANA DUMAILO,3 AND EDUARDO SlU-ESTRADA3 1 Laboratorio de Parasitologfa, Centre de Investigacion y Estudios Avanzados del Institute Politecnico Nacional (CINVESTAV-IPN), Unidad Merida, Carretera Antigua a Progreso Km 6, A.P. 73 Cordemex, C.P. 97310, Merida, Yucatan, Mexico (e-mail: leo@mda.cinvestav.mx), 2 Institute of Parasitology, Academy of Sciences of the Czech Republic, Branisovska 31, 370 05 Ceske Budejovice, Czech Republic (e-mail: tscholz@paru.cas.cz), and 3 Bluefields Indian and Caribbean University, P.O. Box 88, Bluefields, Nicaragua (e-mail: bicu@ibw.com.ni) ABSTRACT: Adults of 12 endoparasitic helminths were recorded from 8 freshwater fish species from the South Atlantic Autonomous Region, Nicaragua: 8 digeneans Crassicutis cichlasomae, Magnivitellinum simplex, Oligogonotylus manteri, Prosthenhystera obesa, Saccocoelioides sogandaresi, Saccocoelioides sp. 1, Saccocoelioides sp. 2, and Allocreadiidae gen. sp. ("Crepidostomum" sp.); 3 nematodes Procamallanus (Spirocamallanus) rebecae, Procamallanus (Spirocamallanus) neocaballeroi, and Rhabdochona kidderi kidderi; and 1 acanthocephalan Neoechinorhynchus golvani. Comparative measurements among 5. sogandaresi from Poecilia velifera, Saccocoelioides sp. 1 from Cichlasoma maculicaiida, and Saccocoelioides sp. 2 from Astyanax fasciatus, as well as drawings of the 2 latter species are given for future reference. All but C. cichlasomae and O. manteri are reported from Nicaragua for the first time, and most taxa also represent new geographical records for Central America. The majority of species have previously been found in freshwater fishes from southeastern Mexico, which indicates a close similarity of the helminth faunas of both regions, in accordance with previous data on the larval stages of endohelminths and gill monogeneans. KEY WORDS: Helminths, parasites, Digenea, Nematoda, Acanthocephala, freshwater fishes, Nicaragua. During a short visit by 4 of the authors (M.L.A.M., T.S., V.M.V.M., and G.A.T.) to Nicaragua in March 1999, brackish and freshwater fishes from the Autonomous Region of the South Atlantic were examined for helminth parasites. Because information on helminths parasitizing freshwater fishes in Nicaragua is limited to the report by Watson (1976), in which several species of trematodes from Lake Nicaragua were reported, a list of adult endohelminths is provided, with morphological data on some taxa. The results of a survey of larval stages of endohelminths found in the same fish hosts and ancyrocephaline monogeneans from the gills of cichlids, have already been published (Aguirre-Macedo et al., 2001; Vidal-Martinez, Scholz, and Aguirre-Macedo, 2001). Materials and Methods A total of 56 fish of the following 8 species was examined: tetra Astyanax fasciatus (Cuvier, 1819) (8 specimens examined) (family Characidae); pastel cichlid Amphilophus alfari (Meek, 1907) (3); convict cichlid 4 Corresponding author. 190 Copyright © 2011, The Helminthological Society of Washington Archocentrus nigrofasciatus (Giinther, 1869) (3); blackbelt cichlid Cichlasoma maculicaiida (Regan, 1805) (12); jaguar cichlid Cichlasoma managuense (Giinther, 1867) (13); butterfly cichlid Herotilapia multispinosa (Giinther, 1867) (8) (Cichlidae); molly Poecilia velifera (Regan, 1814) (5) (Poeciliidae); and long-whiskered catfish Rhamdia nicaraguensis (Giinther, 1864) (4) (Pimelodidae). Fish were collected by hook and line and throw nets from 7 localities of the Atlantic drainages of Nicaragua in the Autonomous Region of the South Atlantic (Region Autonoma del Atlantico Sur—RAAS): Torsuani River (11°47'06"N; 83°52'38"W); Mahogany River (12°03'22"N; 83°59'07"W); Cano Negro Stream (12°00'55"N; 84°01'10"W), in Bluefields City; Walpatara Bridge (12°00'14"N; 83°45'58"W); Loonku Creek (11°59'05"N; 83°46'48"W); Cano Marandn Stream (12°00'10"N; 83°46'39"W); and Puente Chino (12°00'30"N; 83°46'13"W). The number offish sampled in individual localities and map locations are given in Aguirre-Macedo et al. (2001). Fish were transported alive to the laboratory of the Bluefields Indian and Caribbean University (BICU), where they were examined by routine helminthological procedures outlined by Vidal-Martinez, Aguirre-Macedo et al. (2001). All helminths were studied in fresh preparations and counted in situ. Adult helminths were considered those with fully developed reproductive organs regardless of the presence of eggs. Eventually, some digeneans were fixed with a glycerin-ammonium picrate (GAP) mixture following the methodology out-
AGUIRRE-MACEDO ET AL.—ENDOHELMINTHS FROM NICARAGUAN FISHES 191 Table 1. Some endoparasitic helminths collected from Nicaraguan freshwater fishes. Digcnea Helminth species Crassicutis cichlasomae Manter, 1936 Magnivitellinum simplex Kloss, 1966 Oligogonotylus manteri Watson, 1976 IProsthenhystera obesa (Diesing, 1850) Saccocoelioides sogandaresi Lumsden, 1964 Saccocoelioides sp. 1 Saccocoelioides sp. 2 Allocreadiidae gen. sp. Nematoda Procamallanus (Spirocamallanus) rebecae Andrade-Salas, Pineda-Lopez, and Osorio-Sarabia, 1994 Procamallanus (Spirocamallanus) neocaballeroi (Caballero-Deloya, 1977) Rhabdochona kidderi kidderi Pearsc, 1936 Acanthocephala Neoechinorhynchus golvani Salgado-Maldonado, 1978 Hosts (no. infected/examined) Cichlasoma maculicauda (5/7) Astyanax fasciatus ( 1 /4) (1/2) C. maculicauda (2/7) Cichlasoma managuense (1/2) A. fasciatus (1/2) Poet-ilia velifera (1/1) C. maculicauda (1/3) (6/7) A. fasciatus (2-4) A. fasciatus ( 1 /4) (1/2) Intensity range 1-8 1 6 3-6 1 1 1 17 4-42 1-3 1 4 Amphilophus alfari (1/3) 29 C. maculicauda (21 \) 1—2 Herotilapia rnultispinosa (3/8) 1—3 A. fasciatus (1/9) 3 C. maculicauda (1/11) 1 C. maculicauda (1/11) 1 A. alfari (1/1) C. managuense (1/2) C. managuense (2/4) H. rnultispinosa (1/4) H. rnultispinosa (1/3) lined by Ergens (1969). Measurements are given in micrometers. Drawings were made with the aid of a drawing tube. Reference specimens were deposited in the Coleccion Nacional de Helmintos (CNHE), Mexico City, Mexico, and the Laboratory of Parasitology, CINVESTAV-IPN (CHCM), Merida, Mexico. Results A total of 12 helminth species was found. Data on the hosts, localities, and infection range are provided in Table 1. All but 1 species (IProsthenhystera obesa) were located in the intestine; IP. obesa inhabited the gall blader. Among the species found, 3 trematodes were not identified to species level: 2 species of Saccocoelioides and a trematode of the subfamily Allocreadiinae (Allocreadiidae). Measurements of the first 2 species (Figs. 1-4), together with those of a congeneric species {Saccocoelioides sogandaresi) from Poecilia velifera are presented in Table 2. 1 1 1-8 3 2 Locality Cano Maranon Torsuani River Loonku Creek Torsuani River Puente Chino Loonku Creek Cano Maranon Torsuani River Cano Maranon Torsuani River Torsuani River Loonku Creek Torsuani River Loonku Creek Deposit accession nos. CNHE/CHCM 4193/ 4 1 95/ 4196/ 4194/ /383 /384 /380 4142/ /393, 393-1 Mahogany River 4143/ Torsuani River /396 Torsuani River Loonku Creek Puente Chino Cano Negro Loonku Creek Puente Chino 41911 Discussion The number of species of adult endohelminths recorded was lower than that of larval stages, in particular metacercariae of digeneans, found in the same fish hosts (Aguirre-Macedo et al., 2001). Adult trematodes represented the dominant group (8 species) in this study, whereas nematodes were fewer (only 3 species). Only 1 acanthocephalan occurred in fishes examined. No adult cestodes were found, even in the pimelodid catfish Rhamdia nicaraguensis, but only 4 fish of this species were examined. Thus, it is probable that more fish and localities need to be sampled to find adult cestodes, especially considering the low prevalence (
Page 1 and 2: Volume 68 July 2001 Number 2 Former
Page 3 and 4: Comp. Parasitol. 68(2), 2001, pp. 1
Page 5 and 6: CRISCIONE AND FONT—DEVELOPMENT OF
Page 7 and 8: length did not exceed 1.2 mm. By da
Page 9 and 10: Agamidae) from Australia. Journal o
Page 11 and 12: infection with O. javaensis (C. D.
Page 13 and 14: CRISCIONE AND FONT—VARIATION OF O
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Page 19 and 20: U.S.A. (42°59'N; 88°21'W). Ten to
Page 21 and 22: Table 2. Prevalence (Pr) and Rana c
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Page 25 and 26: 196 in G. W. Esch, A. O. Bush, and
Page 29 and 30: filariae of S. fallisensis was simi
Page 33 and 34: CARRENO ET AL.—DEER PARASITES IN
Page 35 and 36: ange of host species, but most coll
Page 37 and 38: Oestridae). Canadian Journal of Zoo
Page 41 and 42: JOY AND TUCKER—SALAMANDER PARASIT
Page 43: south-central New York salamanders.
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Page 51 and 52: Table 1. Helminths found in freshwa
Page 53 and 54: •o d c o U rH CB 3 C8 H °Q 0 W T
Page 55 and 56: da-Lopez et al., 1985; Leon, 1992;
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Page 59 and 60: JALISCO SALGADO-MALDONADO ET AL.—
Page 61 and 62: SALGADO-MALDONADO ET AL.—HELMINTH
Page 63 and 64: Table 3. Continued. Number of hosts
Page 71 and 72: tudio helmintologico de Chirostoma
Page 75 and 76: CURRAN ET AL.—TWO VIETNAMESE SNAK
Page 77 and 78: methods of fixation had not been kn
Page 79 and 80: tion) but were in independent later
Page 81 and 82: tylidae Poche: Part 2. A contributi
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Page 89 and 90: Literature Cited Baker, M. R. 1978.
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Literature Cited Cone, D. K., and R
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G1BLIN-DAVIS ET AL.—CUTICULAR CHA
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- GIBLIN-DAVIS ET AL.—CUTICULAR C
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GIBLIN-DAVIS ET AL.—CUTICULAR CHA
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Comp. Parasitol. 68(2), 2001, pp. 2
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PAOLA AND DAMBORENEA—TEGUMENT OF
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RESEARCH NOTES 257 Table 1. Mean wo
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, D. Iglesias, and B. Fried. 1986.
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most being found in segment 4 (jeju
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RESEARCH NOTES 263 Table 1. Helmint
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RESEARCH NOTES 267 Table 1. Numbers
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Kharchenko, V. A., G. M. Dvojnos, a
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id s „ ~ 55 **5 | «§ u ' *^ U
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(Nematoda). Except for H. tursionis
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RESEARCH NOTES 275 Figure 1. Cephal
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c Tj ;^ fn in ON o m ON "3 s ON gcd
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ticeps (Rudolphi, 1819), which also
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Nieto reviewed recent advances in t
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Adenomera hylaedactyla, 21 Algansea
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Honorary Membership, 282 Life Membe
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Schrankiana larvata, 21 Schrankiana
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*Edna M. Buhrer "Mildred A. Doss *
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