Pacific Science Volume 36, Number 3, 1982

Browse by

Pacific Science is a quarterly publication devoted to the biological and physical sciences of the Pacific Region.

Browsing Pacific Science Volume 36, Number 3, 1982 by Title

Now showing items 1-16 of 16

36:3 Table of Contents - Pacific Science

(University of Hawai'i Press, 1982-07)
Arginine, Glutamate, and Proline as Substrates for Oxidation and for Glycogenesis in Cephalopod Tissues

Hochachka, PW; Fields, JHA (University of Hawai'i Press, 1982-07)

In addition to the usual metabolic roles for arginine and proline in cephalopod metabolism (the first serving in anaerobic metabolism and the second in augmenting the Krebs cycle pool of intermediates), we found ...
The Biomechanics of the Arteries of Nautilus, Nototodarus, and Sepia

Gosline, John M; Shadwick, Robert E (University of Hawai'i Press, 1982-07)

The mechanical properties of the dorsal aorta of three cephalopod mollusks, Nautilus pompilius, Nototodarus sloani, and Sepia latimanus, were investigated by in vitro inflations of isolated arterial segments. As ...
A Cephalopod Approach to Rethinking about the Importance of the Bohr and Haldane Effects

Lykkeboe, G; Johansen, K (University of Hawai'i Press, 1982-07)

This study concerns the physiological implications of the Bohr and Haldane effects and the buffer values in the blood from the cephalopods Nautilus pompilius, Octopus macropus, Sepia latimanus, Nototodarus sloani phil ...
Correlations between Enzyme Profiles in Cephalopod Muscle and Swimming Behavior

Baldwin, John (University of Hawai'i Press, 1982-07)

The maximum activities of octopine dehydrogenase, lactate dehydrogenase, alanopine dehydrogenase, citrate synthetase, a-glycerophosphate dehydrogenase, malate dehydrogenase, and glutamate oxaloacetate transaminase were ...
The Fate of Arginine and Proline Carbon in Squid Tissues

Mommsen, TP; French, CJ; Emmett, B; Hochachka, PW (University of Hawai'i Press, 1982-07)

The metabolism of proline and arginine was investigated in kidney, gill, and heart of the pelagic squid, Symplectoteuthis. The rates of CO2 release from 14C-proline exceeded the rates from 14C-arginine. The metabolic rate ...
Glucose and Proline Metabolism in Nautilus

Fields, JHA; Hochachka, PW (University of Hawai'i Press, 1982-07)

The rates of incorporation of [U-14C]proline and [U-14C]glucose into CO2 and glycogen were assessed in Nautilus pompilius under both in vitro and in vivo conditions. Both substrates exhibited tissue-specific rates of ...
An Immunochemical Study of Structural and Evolutionary Relationships among Molluscan Octopine Dehydrogenases

Baldwin, John (University of Hawai'i Press, 1982-07)

Antisera produced against octopine dehydrogenases isolated from a gastropod and a cephalopod were used to investigate structural and evolutionary relationships of this enzyme in a range of mollusks. Antisera against ...
The Influence of Symbiotic Dinoflagellates on Respiratory Processes in the Giant Clam Tridacna squamosa

Mangum, CP; Johansen, K (University of Hawai'i Press, 1982-07)

Several aspects of respiratory gas exchange are distinctive in the giant clam Tridacna squamosa, which obtains nutrients from symbiotic dinoflagellates found in the mantle. During the day, when more oxygen is produced ...
The Nautilus Siphuncle as an Ion Pump

Mangum, Charlotte P; Towle, David W (University of Hawai'i Press, 1982-07)

The siphuncle, which is believed to empty the newly formed chambers of the shell by a process involving the active transport of NaCl, has the metabolic, enzymatic, and morphological features of a transporting epithelium. It ...
A Note on the Structural Organization of the Cardiac Myofiber in Nautilus pompilius

Dykens, James A; Mangum, Charlotte P; Arnold, John M (University of Hawai'i Press, 1982-07)

The ultrastructure of the cardiac myofiber in Nautilus resembles that of bivalves more than the decapod cephalopods. The fiber is nonstriated, the mitochondrial density is relatively small and the cristae poorly developed, ...
On the Relationship between P50 and the Mode of Gas Exchange in Tropical Crustaceans

Mangum, Charlotte P (University of Hawai'i Press, 1982-07)

In general, the oxygen affinity of hemocyanin does not decrease when tropical decapod crustaceans carryon gas exchange in air instead of water. Other oxygenation properties such as cooperativity and the Bohr shift ...
The Properties and Functions of Alanopine Dehydogenase and Octopine Dehydrogenase from the Pedal Retractor Muscle of Strombidae (Class Gastropoda)

Baldwin, J; England, WR (University of Hawai'i Press, 1982-07)

The pedal retractor muscles of Strombidae contain high activities of both alanopine dehydrogenase and octopine dehydrogenase, raising questions as to the functions of these two enzymes during muscle anoxia associated ...
Some Catalytic and Regulatory Properties of Pyruvate Kinase from the Spadix and Retractor Muscles of Nautilus pompilius

Fields, Jeremy HA (University of Hawai'i Press, 1982-07)

Pyruvate kinase was partially purified from the spadix and retractor muscles of Nautilus pompilius. In both cases, the enzyme was activated by magnesium and potassium ions with similar affinities (apparent Ka values ...
Sperm Morphology and Development in Two Acoel Turbellarians from the Philippines

Boyer, Barbara Conta; Smith, George W (University of Hawai'i Press, 1982-07)

In this study we compare spermiogenesis and ultrastructure of the mature sperm in two species of acoel Turbellaria from the Philippines. Sperm development is divided into five stages: (1) the early undifferentiated state, ...
Vascular Resistance in the Isolated Gills of Octopus macropus and Nautilus pompilius

Redmond, James R; Bourne, George B (University of Hawai'i Press, 1982-07)

The gills of cephalopods represent a potential site of regulation of vascular peripheral resistance. Measurements of pressure-flow relationships in the isolated gills of Octopus macropus and Nautilus pompilius gave no ...