Výsledky vyhledávání - "R. J. WHITNEY"

Colorimetric Method for Estimation of Dissolved Oxygen in the Field

Publikováno v: Journal of Experimental Biology. 16:56-59

The suitability of the Winkler method for the estimation of oxygen dissolved in water is well established (Standard Methods of Water Analysis, 1936; Fox & Wingfield, 1938). Its usefulness in the field, however, is limited by the fact that it is neces

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a0986f535ffeedfbfd477f1ad4ded870
https://doi.org/10.1242/jeb.16.1.56

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The Relation of Animal Size to Oxygen Consumption in Some Fresh-Water Turbellarian Worms

Autor: R. J. Whitney

Publikováno v: Journal of Experimental Biology. 19:168-175

1. A size factor is demonstrated for the oxygen consumption at 14.5° C. of four species of fresh-water Turbellaria obtained from different habitats. 2. For three of the species studied (Polycelis cornuta, Crenobia alpina and Planaria polychroa) smal

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e88d96e4a67adac8e5947f8ae8af38b9
https://doi.org/10.1242/jeb.19.2.168

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A Syringe Pipette Method for the Determination of Oxygen in the Field

Autor: R. J. Whitney

Publikováno v: Journal of Experimental Biology. 15:564-570

The method usually employed for the determination of oxygen in natural waters is that described in Standard Methods of Water Analysis (1925). The basis of this method is the Winkler chemical method for the estimation of dissolved oxygen. A sample of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d462061255020e2579d259f2eca3cec1
https://doi.org/10.1242/jeb.15.4.564

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The Thermal Resistance of Mayfly Nymphs from Ponds and Streams

Autor: R. J. Whitney

Publikováno v: Journal of Experimental Biology. 16:374-385

Temperature is a factor of great importance in determining the distribution of animals. There are many references in ecological literature to a correlation between distribution of animals and the temperature conditions prevailing in the habitats occu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::5edf5b8e0c804a1b0b431380bfcdb5c3
https://doi.org/10.1242/jeb.16.3.374

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Diurnal Fluctuations of Oxygen and pH In Two Small Ponds and A Stream

Autor: R. J. Whitney

Publikováno v: Journal of Experimental Biology. 19:92-99

Data are given of the diurnal fluctuations of oxygen, p H and temperature in two ponds and, a stream. One of the ponds was studied at two different seasons. The dependence of the oxygen concentration and its diurnal fluctuation on photosynthetic and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3020656a4754d1d5242002c757f99392
https://doi.org/10.1242/jeb.19.1.92

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