The Inorganic Composition of the Body Fluids of Three Marine Invertebrates | Zendy

J. David Robertson | Zendy

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The Inorganic Composition of the Body Fluids of Three Marine Invertebrates

Author(s) -

J. David Robertson

Publication year - 1939

Publication title -

journal of experimental biology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.367

H-Index - 185

eISSN - 1477-9145

pISSN - 0022-0949

DOI - 10.1242/jeb.16.4.387

Subject(s) - seawater , homarus , composition (language) , body fluid , marine invertebrates , biology , environmental chemistry , coelom , chemistry , crustacean , zoology , fishery , ecology , anatomy , medicine , linguistics , philosophy

1. Analyses have been made of the body fluids of Echinus esculentus, and two decapod Crustacea, Homarus vulgaris and Cancer pagurus, before and after dialysis with sea water in which they were living. 2. The composition of the perivisceral fluid of Echinus is identical with that of sea water, complete physico-chemical equilibrium existing between the two fluids. 3. The blood plasmas of Homarus and Cancer are maintained in dynamic equilibrium with sea water. They contain more Na, K and Ca and less Cl, Mg and SO4 than sea water. 4. The antennary gland fluid of Cancer contains less Na, K, Ca and Cl and more Mg and SO4 than the blood plasma. 5. The importance of the antennary glands and the surface membranes in regulating the inorganic composition of the blood is discussed.

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