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Short-term low-salinity response in lead-exposed lobsters, Homarus americanus (Milne Edwards)
Gould, E.; Greig, R.A. (1983). Short-term low-salinity response in lead-exposed lobsters, Homarus americanus (Milne Edwards). J. Exp. Mar. Biol. Ecol. 69(3): 283-295. hdl.handle.net/10.1016/0022-0981(83)90075-8
In: Journal of Experimental Marine Biology and Ecology. Elsevier: New York. ISSN 0022-0981, more
Peer reviewed article  

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Keywords
    Heavy metals; Lead; Marine pollution; Metabolism; Pollution effects; Salinity effects; Homarus americanus H. Milne Edwards, 1837 [WoRMS]; Marine

Authors  Top 
  • Gould, E.
  • Greig, R.A.

Abstract
    The only effect attributable solely to lead exposure (50 mu g multiplied by l-1, 30 days) in lobsters, H. Americanus (Milne Edwards), was decreased pentose shunt activity (G6PDH) in the antennal gland, which contained the greatest concentration of lead taken up by the tissues analyzed. Similarly-exposed lobsters were subsequently held for 2 days in clean, aerated sea water at either ambient or low salinity (27 or 17 ppt., respectively), after which time the lead concentration in the antennal gland had dropped by one-third and G6PDH had returned to control values. Low-salinity effects far outnumbered lead-induced effects and were found primarily in the tail muscle, corroborating findings in an earlier study with cadmium. Lead exposure at low salinity abolished several normal hyposaline reactions seen in control animals.

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