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. Animal Ecology. Animal ecology. FIG. 28-3 |C| Cruitaceous/o, b) osfracod ConcAoecia. c| copepod Calanus, d) amphipod, Phronemia, in empty mantle of the pelagic tunicate Salpa. atopods. Many of these forms arc also bcntliic or nektonic during a part of the life cycle. Among the chordates are the remarkable and sometimes abundant tunicates. The eggs and imma- ture stages of many fish are pelagic in that they absorb just enough water shortly after being spaw^ned to have almost precisely the same density as the sur- rounding water. The eggs of skates and rays, some of the sharks, and some other

. Animal Ecology. Animal ecology. FIG. 28-3 |C| Cruitaceous/o, b) osfracod ConcAoecia. c| copepod Calanus, d) amphipod, Phronemia, in empty mantle of the pelagic tunicate Salpa. atopods. Many of these forms arc also bcntliic or nektonic during a part of the life cycle. Among the chordates are the remarkable and sometimes abundant tunicates. The eggs and imma- ture stages of many fish are pelagic in that they absorb just enough water shortly after being spaw^ned to have almost precisely the same density as the sur- rounding water. The eggs of skates and rays, some of the sharks, and some other  Stock Photo
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Library Book Collection / Alamy Stock Photo

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RN5JRE

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1640 x 1524 px | 27.8 x 25.8 cm | 10.9 x 10.2 inches | 150dpi

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. Animal Ecology. Animal ecology. FIG. 28-3 |C| Cruitaceous/o, b) osfracod ConcAoecia. c| copepod Calanus, d) amphipod, Phronemia, in empty mantle of the pelagic tunicate Salpa. atopods. Many of these forms arc also bcntliic or nektonic during a part of the life cycle. Among the chordates are the remarkable and sometimes abundant tunicates. The eggs and imma- ture stages of many fish are pelagic in that they absorb just enough water shortly after being spaw^ned to have almost precisely the same density as the sur- rounding water. The eggs of skates and rays, some of the sharks, and some other fishes, such as the herring, however, sink to the bottom where they remain until they hatch. Flotation mechanisms The specific gravity of sea water is 1.02 to while that of naked cells or protoplasm varies 1.02 to 1.08. The specific gravity of the entire 1.03, fron:. FIG. 28 3 (D) Miscellaneous: a) arrow worm Sog/7^o, b) annelid Tomopterls, c) nemertean Nec/onemec/es, d) pteropod mollusk Limacino, e) tunicate Oikopleura, f) pteropod mollusk Clione. Marine biomes 357. 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 work.. Kendeigh, S. Charles (Samuel Charles), 1904-. Englewood Cliffs, N. J. , Prentice-Hall

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