Indigenous versus Lessepsian Hosts: Nervous Necrosis Virus (NNV) in Eastern Mediterranean Sea Fish
| Autor: | Ran Berzak, Yael Lampert, Nir Stern, Nadav Davidovich, Dan Tchernov, Aviad Scheinin, Arik Diamant, Danny Morick |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
0301 basic medicine
Mediterranean climate Population lcsh:QR1-502 Zoology Biology Nemipterus randalli lcsh:Microbiology Invasive species Article 03 medical and health sciences Fish Diseases Mediterranean sea Round sardinella Virology Mediterranean Sea Animals Nodaviridae Sardinella education Phylogeny fish education.field_of_study viral diseases Host (biology) nervous necrosis virus (NNV) Fishes 04 agricultural and veterinary sciences biology.organism_classification 030104 developmental biology Infectious Diseases Lessepsian species 040102 fisheries 0401 agriculture forestry and fisheries RNA Viral indigenous species human activities |
| Zdroj: | Viruses Viruses, Vol 12, Iss 430, p 430 (2020) Volume 12 Issue 4 |
| ISSN: | 1999-4915 |
| Popis: | Viruses are among the most abundant and diverse biological components in the marine environment. In finfish, viruses are key drivers of host diversity and population dynamics, and therefore, their effect on the marine environment is far-reaching. Viral encephalopathy and retinopathy (VER) is a disease caused by the marine nervous necrosis virus (NNV), which is recognized as one of the main infectious threats for marine aquaculture worldwide. For over 140 years, the Suez Canal has acted as a conduit for the invasion of Red Sea marine species into the Mediterranean Sea. In 2016&ndash 2017, we evaluated the prevalence of NNV in two indigenous Mediterranean species, the round sardinella (Sardinella aurita) and the white steenbras (Lithognathus mormyrus) versus two Lessepsian species, the Randall&rsquo s threadfin bream (Nemipterus randalli) and the Lessepsian lizardfish (Saurida lessepsianus). A molecular method was used to detect NNV in all four fish species tested. In N. randalli, a relatively newly established invasive species in the Mediterranean Sea, the prevalence was significantly higher than in both indigenous species. In S. lessepsianus, prevalence varied considerably between years. While the factors that influence the effective establishment of invasive species are poorly understood, we suggest that the susceptibility of a given invasive fish species to locally acquired viral pathogens such as NVV may be important, in terms of both its successful establishment in its newly adopted environment and its role as a reservoir &lsquo host&rsquo in the new area. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
| Nepřihlášeným uživatelům se plný text nezobrazuje | K zobrazení výsledku je třeba se přihlásit. |