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Mortality and Reovirus Infection in ...

Spitznagel, Matthew Isaac.

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Mortality and Reovirus Infection in Soft-Shell Blue Crab (Callinectes sapidus) Aquaculture.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Mortality and Reovirus Infection in Soft-Shell Blue Crab (Callinectes sapidus) Aquaculture./
Author:	Spitznagel, Matthew Isaac.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2019,
Description:	85 p.
Notes:	Source: Masters Abstracts International, Volume: 81-02.
Contained By:	Masters Abstracts International81-02.
Subject:	Environmental science. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=13807602
ISBN:	9781085564359

Mortality and Reovirus Infection in Soft-Shell Blue Crab (Callinectes sapidus) Aquaculture.
Spitznagel, Matthew Isaac.

Mortality and Reovirus Infection in Soft-Shell Blue Crab (Callinectes sapidus) Aquaculture. - Ann Arbor : ProQuest Dissertations & Theses, 2019 - 85 p.

Source: Masters Abstracts International, Volume: 81-02.

Thesis (M.S.)--University of Maryland, College Park, 2019.

This item must not be sold to any third party vendors.

Soft-shell blue crab production the United States is an undervalued aquaculture practice experiencing high crab mortality rates from a series of stressors, including disease. The impact of one disease, the reovirus CsRV1, remains unquantified in major soft-shell crab production regions, despite the virus' known ubiquity and lethality. My research examined the mortality and CsRV1 infection rates of pre- and post-production crabs in Maryland, Virginia, and Louisiana soft-shell crab production facilities in 2016-2017, attempting to link these rates to water quality and aquaculture practice variables. I found that recirculating aquaculture systems lost half the proportion of crabs (16%) that flow-through systems did (33%). CsRV1 infection was the primary predictor of crab death in Chesapeake aquaculture, presenting in 75% of dead crabs compared to 22% of dead crabs in Louisiana aquaculture. Multi-state data suggests crab losses worth over $2 million are attributable to CsRV1, indicating a need for aquaculture effluent and discard control.

ISBN: 9781085564359Subjects--Topical Terms:

677245
Environmental science.

Mortality and Reovirus Infection in Soft-Shell Blue Crab (Callinectes sapidus) Aquaculture.
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520 $a Soft-shell blue crab production the United States is an undervalued aquaculture practice experiencing high crab mortality rates from a series of stressors, including disease. The impact of one disease, the reovirus CsRV1, remains unquantified in major soft-shell crab production regions, despite the virus' known ubiquity and lethality. My research examined the mortality and CsRV1 infection rates of pre- and post-production crabs in Maryland, Virginia, and Louisiana soft-shell crab production facilities in 2016-2017, attempting to link these rates to water quality and aquaculture practice variables. I found that recirculating aquaculture systems lost half the proportion of crabs (16%) that flow-through systems did (33%). CsRV1 infection was the primary predictor of crab death in Chesapeake aquaculture, presenting in 75% of dead crabs compared to 22% of dead crabs in Louisiana aquaculture. Multi-state data suggests crab losses worth over $2 million are attributable to CsRV1, indicating a need for aquaculture effluent and discard control.
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