Biblioteca Digital

29 resultados para freshwater ecosystem

Freshwater planarians (Turbellaria) of North America.

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Freshwater polychaetes (Annelida) of North America, by Nancy Foster.

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Cruise results, fisheries ecosystems assessment MARMAP survey : Northeast Continental Shelf ecosystem.

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Skeleton bulk biomass, ecosystem model (skebub) / by Nicholas Bax (Compass Systems, Inc.).

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Fisheries management under the Fishery Conservation and Management Act, the Marine Mammal Protection Act, and the Endangered Species Act / Katherine A. Green Hammond, consultant, Ecosystem Modeling, Houston, Tex.

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On some freshwater algae from the West Indies, by Wm. West assisted by G.S. West.

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A further contribution to the freshwater algae of the West Indies, by W. West assisted by G.S. West.

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An Arctic ecosystem : the coastal tundra at Barrow, Alaska / edited by Jerry Brown ... [et al.].

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Algae of the western Great Lakes area, with an illustrated key to the genera of desmids and freshwater diatoms.

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The freshwater fishes of British Guiana, including a study of the ecological grouping of species and the relation of the fauna of the plateau to that of the lowlands / by C.H. Eigenmann.

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A history of the British freshwater Algæ, including descriptions of the Desmideæ and Diatomaceæ ... By Arthur Hill Hassall ...

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Marine ecosystem modeling : proceedings from a workshop held April 6-8, 1982, Frederick, Md. / Kenneth W. Turgeon, editor.

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Review of information regarding the conservation of living resources of the Antarctic marine ecosystem : final report / John L. Bengtson.

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Handbook of the freshwater fishes of India : giving the characteristic peculiarities of all the species at present known, and intended as a guide to students and district officers / By R. Beavan.

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