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Start Over Creator Roumillat, William A.

1. Henneguya cynoscioni sp. n. (Myxosporea: Bivalvulida), an agent of severe cardiac lesions in the spotted seatrout, Cynoscion nebulosus (Teleostei: Sciaenidae)

Creator:
Dyková, Iva, Buron, Isaure de, Roumillat, William A., and Fiala, Ivan
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Henneguya cynoscioni, Myxosporea, pathogenicity, cardiac henneguyosis, Cynoscion nebulosus, Cardicola laruei, and Atlantic Ocean
Language:
English
Description:
A new myxosporean species, Henneguya cynoscioni sp. n., is described from the spotted seatrout, Cynoscion nebulosus (Cuvier) (Sciaenidae) as a causative agent of cardiac henneguyosis. This new myxosporean species is characterized by the morphology of spores and the sequence of SSU rDNA. Examination of 227 spotted seatrout from four South Carolina estuaries in 2008-2010 revealed a 33.5% total prevalence of H. cynoscioni. Henneguya cynoscioni produces lesions in the bulbus arteriosus, its specific site of infection. The severity of lesions and their impact on the bulbus arteriosus is proportional to the number of plasmodial stages developing in this segment of the heart, being most pronounced in host reaction directed against spores liberated from plasmodia.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

2. Kudoa inornata sp. n. (Myxosporea: Multivalvulida) from the skeletal muscles of Cynoscion nebulosus (Teleostei: Sciaenidae)

Creator:
Dyková, Iva, Buron, Isaure de, Fiala, Ivan, and Roumillat, William A.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
Myxozoa, Myxosporea, Kudoa inornata, muscle infections, and Cynoscion nebulosus
Language:
English
Description:
A new myxosporean species, Kudoa inornata sp. n. (Myxosporea: Multivalvulida), is described from skeletal muscles of the spotted seatrout Cynoscion nebulosus (Cuvier), collected in estuarine waters along the coast of South Carolina, USA. Light microscopic and ultrastructural characters rank this species to the group of Kudoa species with simple-shaped spores. The uniqueness of the SSU and LSU rDNA sequences justifies its status of a new species with sister relationship to Kudoa paniformis. The 100% prevalence in seatrout from four out of five localities sampled and pathogenicity of K. inornata recognized in this study should motivate further screening for infections in its host, which is considered a commercially important game fish with a wide distribution in the Western North Atlantic.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public

3. Two new species of Philometra (Nematoda: Philometridae) parasitic in the perciform fish Cynoscion nebulosus (Sciaenidae) in the estuaries of South Carolina, USA

Creator:
Moravec, František, Buron, Isaure de, and Roumillat, William A.
Format:
bez média and svazek
Type:
model:article and TEXT
Subject:
parasitic nematode, Philometra, new species, estuarine fish, Cynoscion, South Carolina, USA, and West Atlantic Ocean
Language:
English
Description:
Two new nematode species of Philometra Costa, 1845, P. carolinensis sp. n. and P. cynoscionis sp. n., are described from the spotted seatrout, Cynoscion nebulosus (Cuvier) (Sciaenidae, Perciformes) in estuaries on the Atlantic coast of South Carolina, USA. Philometra carolinensis (males and gravid and subgravid females) parasitic in the host's ovary is most similar to P. lateolabracis (Yamaguti, 1935) in female morphology, but distinctly differs from it in possessing conspicuously short spicules (81-87 µm long) with heavily sclerotized distal parts, the gubernaculum bearing a reflected dorsal barb, and in the length ratio of the gubernaculum and spicules (1:1.23-1.42) in the male. Philometra cynoscionis (only gravid females) found subcutaneously in the host's tissue (lateral to the ascending process of the premaxilla and also posteromedial to the length of each maxilla) is characterized mainly by the presence of cephalic papillae arranged in two circles (8 large papillae in outer circle and 6 small papillae in inner circle), the absence of caudal projections, the body size (length of gravid female 20-33 mm) and the location in the host.
Rights:
http://creativecommons.org/licenses/by-nc-sa/4.0/ and policy:public