Digenetic trematodes infecting anurans from a derived savanna biotope in Edo State, Nigeria

2020 ◽  
Vol 41 (2) ◽  
Author(s):  
H.J Ozemoka ◽  
M.O.S Aisien
Keyword(s):  
Molecular Characterization ◽  
Host Record ◽  
Wet Season ◽  
New Host ◽  
New Host Record ◽  
Digenetic Trematodes ◽  
Derived Savanna ◽  
Edo State ◽  
The Difference

An investigation of the digenetic trematodes of anurans from Agbede, a location in the derived savanna biotope in Edo state,Nigeria was conducted from August, 2007 to July, 2008. Anuran hosts examined included Sclerophrys maculata, S.regularis, Ptychadena pumilio, P. bibroni, P. oxyrhynchus, Hoplobatrachus occipitalis and Hylarana galamensis. Theanurans were collected using the Visual Acoustic Encounter Survey (VAES) method, dissected and examined for trematodeinfections. A total of 267 anurans were examined of which 33 were infected with an overall prevalence of 12.36%. Seasonalprevalence was 14.88% for the wet season and 8.08% for dry season. The difference in prevalence values was not statisticallysignificant (p >0.05). Four digenetic trematodes, namely, Mesocoelium monodi, an unidentified Mesocoelium sp.,Haematoloechus exoterorchis and an unidentified Haematoloechus sp. Haematoloechus exoterorchis was recovered from H.occipitalis while the unidentified Haematoloechus sp. infected H. occipitalis and Sclerophrys maculata. Mesocoeliummonodi infected only Sclerophrys maculata while the unidentified Mesocoelium sp. was a generalist, infecting five anuranhosts. Sclerophrys maculata is thus a new host record for the genus Haematoloechus in Nigeria. In conclusion, this studyrevealed a low trematode diversity in the anurans of the savanna-mosaic at Agbede. However, anurans from this locationharboured two new trematodes: an unidentified Mesocoelium sp and a Haematolechus sp. Sclerophrys maculata as a newhost record for the genus Haematoloechus in Nigeria. More specimens of the Haematoloechus sp. are needed for themorphological description and molecular characterization of the parasite, to establish its relationship with the cogener inH.occipitalis. Keywords: Derived savannah, Anurans, Digenetic trematodes, new host record

Morphological Redescription and Molecular Characterization of Dactylogyrus Labei (Monogenea, Dactylogyridae) from Catla Catla: A New Host Record in India

2014 ◽  
Vol 48 (5) ◽  
pp. 451-456 ◽  
Author(s):  
H. R. Chiary ◽  
A. Chaudhary ◽  
H. S. Singh
Keyword(s):  
Molecular Characterization ◽  
West Bengal ◽  
Labeo Rohita ◽  
Host Record ◽  
First Record ◽  
Catla Catla ◽  
New Host ◽  
Atypical Form ◽  
New Host Record

Abstract Morphological Redescription and Molecular Characterization of Dactylogyrus labei (Monogenea, Dactylogyridae) from Catla catla: a New Host Record in India. Chiary, H. R., Chaudhary, A., Singh, H. S. - Dactylogyrus labei Musselius et Gusev, 1976 (atypical form) specimens were collected from host Catla catla from the river Brahmaputra, Guwahati, Assam, India. The Dactylogyrus samples were examined by morphological and molecular methods. This parasite was originally described from Labeo rohita from fish farm Kalyani, West Bengal, India, but the morphological study of sclerotized parts showed the existence of D. labei on Catla catla. This is the first record of D. labei from Catla catla in India.

scholarly journals Digenetic trematodes of marine fishes from the Arabian Gulf off the coast of Kuwait. Family Bucephalidae Poche, 1907, and the description of a new species

2006 ◽  
Vol 43 (3) ◽  
pp. 147-157 ◽  
Author(s):  
F. Nahhas ◽  
O. Sey ◽  
G. Nakahara
Keyword(s):  
New Records ◽  
Arabian Gulf ◽  
Host Record ◽  
The Body ◽  
New Host ◽  
New Host Record ◽  
Digenetic Trematodes ◽  
Trichiurus Lepturus ◽  
A New Species ◽  
New Host Records

AbstractSix species of Bucephalidae are reported: Subfamily Bucephalinae: Bucephalus sphyraenae Yamaguti, 1952 from Sphyraena obtusata and S. chrysotaenia (Sphyraenidae) (new host records); Bucephalus margaritae Ozaki and Ishibashi, 1934 from Atropus atropos, Scomberoides commersonianus, Carangoides malabaricus (Carangidae), Gerres filamentosus (Gerreidae) (new host record) and Sphyraena jello (new host record); Rhipidocotyle pseudorhombi n. sp. from Pseudorhombus arsius is characterized by and differs from its congeners by several characteristics including an elongate body, a rhynchus with 7 thin papillae, a long tuular caecum extending posteriorly to the ovarian level, goads in the posterior half of the body, and contiguous testes not separated by uterine coils. More specifically it differs from R. heptathelata and R. septapapillata by having a long cirrus sac relative to body length, tandem and more anterior testes. Subfamily Prosorhynchinae: Prosorhynchus pacificus Manter, 1940 from Epinephelus tauvina (Serranidae) and Gnathonodon speciosus (Carangidae) (new host record); P. epinepheli Yamaguti, 1939 from Epinephelus areolatus; P. manteri Srivastava, 1938 from Trichiurus lepturus (Trichiuridae). All species, except Prosorhynchus epinepheli represent new records from the Arabian Gulf.

scholarly journals MOLECULAR CHARACTERIZATION OF ANISAKID NEMATODES HYSTEROTHYLACIUM SPECIES FROM JAPANESE THREADFIN BREAM NEMIPTERUS JAPONICUS (BLOCH, 1791) (PERCIFORMES, NEMIPERIDAE) FROM IRAQI MARINE WATER FISH

2021 ◽  
Vol 16 (4) ◽  
pp. 399-420
Author(s):  
Majid Bannai ◽  
◽  
Muna Mohammed Jori ◽  
Shokoofeh Shamsi ◽  
◽  
...  
Keyword(s):  
Arabian Gulf ◽  
Host Record ◽  
Internal Transcribed Spacers ◽  
New Host ◽  
Larval Stages ◽  
New Host Record ◽  
Nemipterus Japonicus ◽  
Primer Sets ◽  
Anisakid Nematodes

The present study provides a new insight into valuable information on the diverse structure of the Anisakid population and discusses the limited species richness in the Nemipterus japonicus (Bloch,1791) (Perciformes, Nemiperidae). The fishing area consists of various locations in the Arabian Gulf (29°58 0 33 00 N48°28 0 20 E). A total of 315 marine fish were examined, (n=287) were infected. Larval stages (n= 763) encysted within the mesenteries peritoneum and viscera of fish organs were isolated, with a prevalence of 91.11% of infection and, the intensity was 2.65. Molecular analysis was carried out on thirty individuals who have examined the morphology and showed some appearance differences, by amplifying internal transcribed spacers ITS and ITS-1 of nuclear rDNA (rDNA) by PCR using the primer sets NC5/NC2 and SS1/NC13R of thirteen DNA products. Evolutionary analyses were conducted in MEGA X. based on the identity percentage in the GenBank database showed that they belong to anisakid nematodes, in particular, they belong to eleven distinct taxa within the Hysterothylacium Ward & Magath, 1917 (Rhabditida, Raphidascarididae) and one identified species H. amoyense (Hsü, 1933) Deardorff & Overstreet, 1980. The current study records eleven species that belong to a genus of Hysterothylacium; some of the alignment of sequences polymorphisms reveals new different individuals of larvae species that may be adopted as new species if their adult stage is detected, and N. japonicus fish considered as a new host record. The current study provides some insights on the systematic taxonomy of these parasites, in addition, it supports similar studies that have been published elsewhere.

scholarly journals Digenetic trematodes of the Subfamily Aphanurinae Skrjabin & Guschanskaja, 1954 infecting the commercially important fish Thryssa malabarica (Bloch, 1795) (Clupeiformes, Engraulidae) from the brackishwater bodies of Kerala, India

2019 ◽  
Vol 6 (14) ◽  
pp. 591-597
Author(s):  
Puthiya Veettil Nisha ◽  
Puthanpurayil Kandambeth Prasadan
Keyword(s):  
Maximum Level ◽  
Host Record ◽  
Infection Prevalence ◽  
Intensity Of Infection ◽  
New Host ◽  
New Host Record ◽  
Digenetic Trematodes ◽  
The Family ◽  
Commercially Important ◽  
Characteristic Features

Three species of digenetic trematodes of the Family Hemiuridae Looss, 1899, Subfamily Aphanurinae Skrjabin & Guschanskaja, 1954 with their prevalence, intensity of infection and mean abundance are reported Aphanuroides lethrini, Aphanurus stossichii and Aphanurus tuberculatus. A total of 26 specimens of Thryssa malabarica (Bloch, 1795) were examined for digenean infection. Prevalence of infection of A. lethrini, A. stossichii and A. tuberculatus were 11.53%, 69.23% and 15.38%, respectively, the intensity of infection were 1.6, 3.1 and 2.5 and the mean abundance were 0.19, 2.15 and 0.38, respectively. The prevalence, intensity and mean abundance of infection were at the maximum level in A. stossichii infection. Recovery of these parasites from T. malabarica represents a new host record and the first report from Kerala. The characteristic features of the recovered digeneans are discussed.

scholarly journals Dinosoma clupeola sp. n. (Hemiuridae) and Pseudoacanthostomum floridensis Nahhas & Short, 1965 (Acanthostomidae), digenetic trematodes in Brazilian Marine fishes

1989 ◽  
Vol 84 (1) ◽  
pp. 103-106 ◽  
Author(s):  
Berenice M. M. Fernandes ◽  
Miriam B. Goulart
Keyword(s):  
Seminal Vesicle ◽  
Host Record ◽  
Marine Fishes ◽  
Internal Organs ◽  
New Host ◽  
New Host Record ◽  
Digenetic Trematodes

Dinosoma clupeola sp. n. is described from Harengula clupeola, and resembles D. hawaiiense Yamaguti, 1970, from which it differs in the entire, elongate-saccular seminal vesicle, tegument weakly plicated, smaller size of body and internal organs, and slightly larger and narrower eggs. Pseudoacanthostomum floridensis Nahhas & Short, 1965 is referred to Netuma barba, which represents a new host record.

scholarly journals Belostoma dilatatum (Dufour) (Hemiptera, Belostomatidae) hosting metacercariae of Stomylotrema vicarium Braun (Digenea, Stomylotrematidae) in southern Brazil

2006 ◽  
Vol 23 (1) ◽  
pp. 307-310 ◽  
Author(s):  
Suzana B. Amato ◽  
José F. R. Amato
Keyword(s):  
Host Record ◽  
Southern Brazil ◽  
Intermediate Hosts ◽  
New Host ◽  
New Host Record ◽  
Digenetic Trematodes ◽  
Rice Plantation ◽  
Water Canals ◽  
First Time ◽  
Water Bugs

Giant water bugs (aquatic Heteroptera), Belostoma dilatatum (Dufour, 1863), were collected in rice plantation water canals, in the Municipality of Eldorado do Sul, outskirts of Porto Alegre, State of Rio Grande do Sul, southern Brazil. Five specimens were dissected with the objective of finding metacercariae of digenetic trematodes. Four of them (80%) were positive for metacercarial cysts of Stomylotrema vicarium Braun, 1901. The intensities of infection varied from 1 to 16 metacercariae per host (average 7.6). The cysts were whitish, translucent, and found loose among the viscera, in the abdominal and thoracic cavities. Belostoma dilatatum is a new host record for metacercarial cysts of stomylotrematid digenetic trematodes and this is the first time that aquatic hemipterans are recorded as second intermediate hosts of digenetic trematodes in Brazil.

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