none none 0177-5103 1616-1580 Diseases of Aquatic Organisms Dis. Aquat. Org. Experimental inoculation of Louisiana red swamp crayfish Procambarus clarkii with white spot syndrome virus (WSSV) BT Pace JP Hawke R Subramanian CC Green 120 2 143 2016 full_text 10.3354/dao03018 FRESHWATER CRAYFISH: Comparative physiological responses to increasing ambient salinity levels in <i>Procambarus clarkii</i> (Girard) and <i>Orconectes lancifer</i> (Hagen)
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Freshwater Crayfish 18(1): 87-92 (2011)

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Comparative physiological responses to increasing ambient salinity levels in Procambarus clarkii (Girard) and Orconectes lancifer (Hagen)

Green CC, Gautreaux KM, Pérez Pérez RA and Lutz CG  e-mail link

Published Online: 12/31/2011

Abstract

Procambarus clarkii (Girard) is adapted to natural cycles of flooding and drought, but it is also commonly found in permanent habitats. Orconectes lancifer (Hagen) typically inhabits slow streams, oxbows, and lowland rivers with muddy or silty bottoms. In Louisiana, these two species overlap across much of their present ranges, and O. lancifer is being evaluated as an alternative species for aquaculture. We examined the cumulative mortality and physiological responses of P. clarkii and O. lancifer juveniles subjected to increasing salinity in daily increments of approximately 1 g L-1. Measurements of hemolymph total osmolality and concentrations of chloride, calcium and sodium (as mg dL-1) were determined daily for crayfish exposed to salinities from 0 to 25 g L-1. Procambarus clarkii was more tolerant of increasing salinity, with superior osmoregulatory capacity at intermediate and higher salinities. No significant differences were detected in concentrations of sodium, calcium and chloride between species; however, both species demonstrated the same significant linear trends in increasing sodium and chloride ion concentrations. Mean lethal salinity for O. lancifer and P. clarkii was 12.6 + 1.5 and 17.0 + 4.0 g L-1, respectively, with a number of P. clarkii able to survive at salinities above 18 g L-1 while O. lancifer was not. This work provided baseline salinity tolerance data for the species in question, and allowed refinement of protocols for further physiological studies with crayfishes found in coastal watersheds.

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How to Cite

Green CC, Gautreaux KM, Pérez Pérez RA and Lutz CG. (2011). Comparative physiological responses to increasing ambient salinity levels in Procambarus clarkii (Girard) and Orconectes lancifer (Hagen). Freshwater Crayfish 18(1):87-92. doi: 10.5869/fc.2011.v18.87

 

 

Author Information

Christopher  Green,* Aquaculture Research Station, Louisiana State University Agricultural Center, 2410 Ben Hur Rd., Baton Rouge, LA, USA70820. E-mail: cgreen@agcenter.lsu.edu

Katherine  Gautreaux, Aquaculture Research Station, Louisiana State University Agricultural Center, 2410 Ben Hur Rd, Baton Rouge, LA, USA70820. E-mail: kgautreaux@gmail.com

Rosa A. Perez Perez, Division Academica de Ciencias Biologicas, Universidad Juarez Autonoma de Tabasco, Laboratorio de Acuacultura, Carretera Villahermosa-Cardenas Km 0.5,Villahermosa, Tabasco, MexicoCP 86000. E-mail: aurora_pzpz@hotmail.com

Charles G. Lutz, Aquaculture Research Station, Louisiana State University Agricultural Center, 2410 Ben Hur Rd , Baton Rouge, LA, USA70820. E-mail: glutz@agcenter.lsu.edu

Corresponding Author indicated by an *.

 

Publication History

   Manuscript Submitted: 12/10/2010

   Manuscript Accepted: 8/15/2011

   Published Online: 12/31/2011

   Published in Print: 12/31/2011

 

 

Funding Information

No specific funding statement is available for this article.

 

 



 

 

 

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