. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 298 CALIFORNIA FIRTI AND OAMF Sea "water, in comparison to most fresh waters, has a hiulu'i- IjufOM-ing capacity (Sverdnip, Johnson, and FUnninj;, 1942, pp. and 202). This action is due to the jiresence of carbonate, phosphate, and hoi-ate salts. Sea water absoi-bs abont seven times as mncli liydrogen ion as distilled water when the pll is back-titrated to )(). The buttering capacity of sea water seems insufficient to abs
. California fish and game. Fisheries -- California; Game and game-birds -- California; Fishes -- California; Animal Population Groups; Pêches; Gibier; Poissons. 298 CALIFORNIA FIRTI AND OAMF Sea "water, in comparison to most fresh waters, has a hiulu'i- IjufOM-ing capacity (Sverdnip, Johnson, and FUnninj;, 1942, pp. and 202). This action is due to the jiresence of carbonate, phosphate, and hoi-ate salts. Sea water absoi-bs abont seven times as mncli liydrogen ion as distilled water when the pll is back-titrated to )(). The buttering capacity of sea water seems insufficient to absorb the (juantity of acidic substances given off by fishes during normal transpoi-t. Thei-cfore. it was attempted to increase this capacity by utilizing ihc salts known to be ])i'('scn1 ill sea walcr. Sodium carbonate and sodium hicarbmiate were tried at various concentrations. Sodium carbonate, above a con- centration of five m^I (two gi'ams per gallon), caused preci])itation of calcium and magnesium and was therefore considered undesii'al)le. This precipitate became (piitc lu'avy at concentrations above 10 nuM (five gi'ams per gallon). Sodium bicai'bonate did ]U)t ('aus(> prcci|)iia- tion at concentrations np to 63 dvM (20 grams ])er gallon). It showed marked buffering at concentrations from 15 m^I to 63 mJ\I. The amount of acid necessary to reduce the pH to a valtie of )() was and 30 times as great respectively, as the amount i'(M|uii'e(l in untreated sea water (Figure 1).. ml. of N. HCI per 50 ml. sample FIGURE 1. Titration curves for 50 ml. samples of sodium bicarbonate, tris-buffered, and untreated sea water. A, untreated sea water; B, tris-bufFer, 5 gms. per gallon; B', tris-buffer, 20 gms. per gallon; C, sodium bicarbonate, 5 gms. per gallon; C, sodium bicarbonate, 20 gms. per gallon. The stippled area between pH of and represents a recommended range for transport of marine Please note that these images are extracted from scanned page im
Size: 1712px × 1460px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookauthorcaliforniadeptoffishandgame, bookauthorcaliforniafish
