. Ecological animal geography; an authorized, rewritten edition based on Tiergeographie auf ockologischer grundlage. Zoogeography -- Geographical distribution; Animal ecology. PHYSICAL CONDITIONS IN THE OCEAN 159 temperature. Notable among these is the increased number of vertebrae in teleostean fishes from south to north and from warm waters to Among acanthopterygian fishes the vertebrae number uni- formly 24 in all the tropical species of a whole series of families, while the cool-water species belonging to these same families have an increased number. Among flounders of the subfamil
. Ecological animal geography; an authorized, rewritten edition based on Tiergeographie auf ockologischer grundlage. Zoogeography -- Geographical distribution; Animal ecology. PHYSICAL CONDITIONS IN THE OCEAN 159 temperature. Notable among these is the increased number of vertebrae in teleostean fishes from south to north and from warm waters to Among acanthopterygian fishes the vertebrae number uni- formly 24 in all the tropical species of a whole series of families, while the cool-water species belonging to these same families have an increased number. Among flounders of the subfamily Hippoglossinae, the number of vertebrae increases from 35 in the more southern species on the American coasts to 50 in the Increase in length in 0 m 13! J?! 500 1000 1500 9°.. Fig. 14.—Diagrammatic vertical section across the Wyville-Thomson Ridge with the temperature stratification shown. arctic fishes is produced by increase in the number of vertebrae, while many elongate fishes of the tropics have acquired the same body form by increase in the length of the individual vertebrae, without increase in their number. The larger size of northern and cold water forms is a frequent phenomenon, both as applying to the individuals of a wide-ranging species,31"41 and to the northern or cold-water species which replace tropical forms within a given Delayed sexual maturity, which favors growth in size, appears to be directly dependent on retardation of growth at lower temperatures, and this is a common characteristic of northern marine ;47 Large-yolked eggs, with more complete development of the embryo within the egg, and the brood care or ovoviviparity which are asso-. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hesse, Richard, 1868-1944; Allee, W. C. (Warder Clyde)
Size: 1695px × 1475px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookcollectionbiodive, booksubjectanimalecology
