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The effects of temperature and salinity on survival and development of early life stage Florida stone crabs Menippe mercenaria (Say)
Brown, S.D.; Bert, T.M.; Tweedale, W.A.; Torres, J.J.; Lindberg, W.J. (1992). The effects of temperature and salinity on survival and development of early life stage Florida stone crabs Menippe mercenaria (Say). J. Exp. Mar. Biol. Ecol. 157: 115-136
In: Journal of Experimental Marine Biology and Ecology. Elsevier: New York. ISSN 0022-0981, more
Peer reviewed article  

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Keywords
    Biological development; Crustacean larvae; Growth; Larval development; Salinity effects; Survival; Temperature effects; Water temperature; Menippe mercenaria (Say, 1818) [WoRMS]; Marine

Authors  Top 
  • Brown, S.D.
  • Bert, T.M.
  • Tweedale, W.A.
  • Torres, J.J.
  • Lindberg, W.J.

Abstract
    The effects of temperature and salinity on survival and growth of early life stage Menippe mercenaria were tested by rearing larvae and small juveniles ( less than or approximate to 10 mm CW) in factorial temperature-salinity arrays (larvae: 20-35 °C (5 °C increments), 10-40 ppt (10 ppt increments); juveniles: 5-35 degree C (5 °C increments), 10-40 ppt (5 ppt increments)). The highest proportion of larvae survived in water of 30 °C, 30 ppt juvenile survival was 100% in water ranging from 15 to 25 °C and from 25 to 40 ppt. The distribution of this species both latitudinally and seaward may be determined by temperature and salinity tolerance limits of early stages. Both temperature and salinity affected the survival of early zoeal stages (Z1-3). Salinity effects decreased during late zoeal stages (Z4-Z5) and then increased in the megalopal and juvenile stages. The decrease in the effect of salinity on survival at zoeal stage four suggests that osmoregulatory ability begins at this stage. The occurrence of a supernumerary zoeal stage (Z6) was not influenced by temperature or salinity and did not affect survival. Both larval developmental rates and frequency of molting in juveniles accelerated with increasing temperature but were not influenced by salinity.

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