Osmoregulation of the grass shrimp Palaemonetes pugio exposed to polychlorinated biphenyls (PCBs). I. Effecton chloride and osmotic concentrations and chloride-and water-exchange kinetics

Roesljadi, G.; Anderson, Jack W.; Petrocelli, S. R.; Giam, C. S.

doi:10.1007/bf00391374

Cited by 32 publications

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“…In particular, they display an efficient hyporegulation in seawater (925 to 1000 mOsm kg-', ca 31.5 to 34.0%0; review in Mantel & Farmer 1983). In the genus Palaemonetes, reported hypo-osmoregulatory capacities in seawater were -320 mOsm kg-' in P. varians (Potts & Parry 1964), -380 mOsm kg-' in P. inter-medius (Dobkin & Manning 1964), and -275 mOsm kg-' in P. pugio (Roesijadi et al 1976). This is in contrast to adult P. argentinus, which hyper-regulate at low salinities and hyper-osmoconform or isoregulate at higher salinites up to 32.2Ym.…”

Section: Discussionmentioning

confidence: 99%

Ontogeny of osmoregulation in the palaemonid shrimp Palaemonetes argentinus (Crustacea:Decapoda)

Charmantier¹,

Anger²

1999

Mar. Ecol. Prog. Ser.

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Osmoregulation was studied in the zoeal stages I and VI, the first decapodid, the first juvenile, and in adults of the palaemonid shrimp Palaernonetes argentinus. The larvae hatch in freshwater creeks or in adjacent brackish coastal lagoons of the warm temperate southwestern coast of the Atlantic Ocean; larval development is possible in low salinities. To cope with these demanding environments, the capacity for osmoregulation is well developed at hatching, increasing only slightly throughout development. All the postembryonic developmental stages hyper-regulated at low salinity (1 to 10Ym), hyper-osmoconformed at l?%, and osn~oconformed at higher salinities (26%0; up to 32%0 in adults). The type of osmoregulation did not change dunng developnlent from larval hatching through the adult phase. The ecological implications and the evolutionary sigruficance of osmoregulation in early llfehistory stages of P. argentinus and other aquat~c crustaceans are discussed.

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Section: Discussionmentioning

confidence: 99%