J 2017

Pathogenic endoparasites of the spotted seatrout, Cynoscion nebulosus: patterns of infection in estuaries of South Carolina, USA

ARNOTT, Stephen A., Iva DYKOVÁ, William A. ROUMILLAT and Isaure DE BURON

Basic information

Original name

Pathogenic endoparasites of the spotted seatrout, Cynoscion nebulosus: patterns of infection in estuaries of South Carolina, USA

Authors

ARNOTT, Stephen A. (840 United States of America), Iva DYKOVÁ (203 Czech Republic, guarantor, belonging to the institution), William A. ROUMILLAT (840 United States of America) and Isaure DE BURON (250 France)

Edition

Parasitology Research, NEW YORK, Springer, 2017, 0932-0113

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10600 1.6 Biological sciences

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 2.558

RIV identification code

RIV/00216224:14310/17:00100379

Organization unit

Faculty of Science

UT WoS

000401342300013

Keywords in English

Sciaenidae; Myxozoa; Aporocotylidae; Ichthyosporea; Histology; Richness

Tags

Tags

International impact, Reviewed
Změněno: 10/4/2018 14:20, Ing. Nicole Zrilić

Abstract

V originále

Six types of pathogenic endoparasites in an economically important fish, spotted seatrout Cynoscion nebulosus, were studied in order to test whether prevalence of infection and assemblage richness varied with season, host sex, host size, or host age. Fish were collected from South Carolina estuaries, USA, over 12 months (n = 216; total lengths 15-663 mm). They were screened histologically for presence of Henneguya cynoscioni (Myxozoa) and Cardicola spp. (Digenea) in the heart, Kudoa inornata (Myxozoa) in the skeletal muscle, Sinuolinea dimorpha (Myxozoa) in the urinary system, Ichthyophonus sp. (Mesomycetozoea) in the kidney, and an unidentified microsporidian in the liver. Prevalence of infection was 29.8, 38.6, 47.2, 41.2, 13.6, and 2.8%, respectively. All factors had significant, but varying effects on the parasites. Parasite infections were more prevalent in winter than other seasons for Cardicola spp. and H. cynoscioni, more prevalent in winter and spring for Ichthyophonus sp., and more prevalent in male fish than female fish for K. inornata, S. dimorpha, and Ichthyophonus. Prevalence of infection by the three myxosporeans and Cardicola spp. increased with fish length, whereas prevalence of Ichthyophonus increased with length among young fish, but decreased with length among older fish. None of the factors affected the liver microsporidian, although statistical power was low due to its rareness. Assemblage richness varied between 0 and 5, was greater during winter and in male fish, and increased with fish length and fish age. Our results demonstrate that spotted seatrout are commonly co-infected by multiple pathogenic endoparasites, suggesting these parasites likely play an import role in controlling fish population numbers.

Links

MSM 143100010, plan (intention)
Name: Časoprostorová dynamika biodiverzity v ekosystémech střední Evropy.
Investor: Ministry of Education, Youth and Sports of the CR, Spatiotemporal biodiversity dynamics in ecosystems of Central Europe