The Ecological Ramifications of Disease and Density in the Caribbean Spiny Lobster, <i>Panulirus argus</i>

Behringer, Reinhold; Donald, Chris

doi:10.25777/53r1-mb31

2003

DOI: 10.25777/53r1-mb31

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The Ecological Ramifications of Disease and Density in the Caribbean Spiny Lobster, Panulirus argus

Reinhold Behringer¹,

Chris Donald²

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2008

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Transmission of Panulirus argus virus 1 (PaV1) and its effect on the survival of juvenile Caribbean spiny lobster

Butler¹,

Behringer²,

Shields³

2008

Dis. Aquat. Org.

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The Caribbean spiny lobster Panulirus argus, an important fisheries species, is host to Panulirus argus virus 1 (PaV1), a lethal, unclassified virus -the first found in any species of lobster -prevalent in juvenile lobsters. We describe a series of laboratory experiments aimed at assessing the likely modes of disease transmission, determining the survival of lobsters relative to each transmission pathway and identifying potential alternate hosts. Given evidence for lower prevalence of PaV1 in large lobsters, the effect of lobster size on susceptibility was also examined. Results demonstrated that PaV1 can be transmitted to juvenile lobsters via inoculation, ingestion of diseased tissue, contact with diseased lobsters and -among the smallest juveniles -through water over distances of a few meters. Contact and waterborne transmission, the most likely modes of transmission in the wild, were less efficient than inoculation or ingestion. Nevertheless, about half of the smallest lobsters in contact and waterborne trials contracted the disease and died within 3 mo. Other decapods that co-occur with P. argus (e.g. spotted lobster P. guttatus, stone crab Menippe mercenaria, channel crab Mithrax spinosissimus) did not acquire the disease after inoculation with PaV1-infected hemolymph. Our results confirmed that PaV1 is highly infectious and lethal to juvenile P. argus, particularly early benthic juveniles in the wild, and, hence, is a threat to mariculture.

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Transmission of Panulirus argus virus 1 (PaV1) and its effect on the survival of juvenile Caribbean spiny lobster

Butler¹,

Behringer²,

Shields³

2008

Dis. Aquat. Org.

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show abstract

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The Ecological Ramifications of Disease and Density in the Caribbean Spiny Lobster, Panulirus argus

Cited by 1 publication

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Transmission of Panulirus argus virus 1 (PaV1) and its effect on the survival of juvenile Caribbean spiny lobster

Transmission of Panulirus argus virus 1 (PaV1) and its effect on the survival of juvenile Caribbean spiny lobster

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