The Role of Season, Tide, and Diel Period in the Presence of Harbor Seal (Phoca vitulina) Breeding Vocalizations in Glacier Bay National Park and Preserve, Alaska

2017 ◽  
Vol 43 (5) ◽  
pp. 537-546 ◽  
Author(s):  
Leanna P. Matthews ◽  
Christine M. Gabriele ◽  
Susan E. Parks
Keyword(s):  
National Park ◽  
Harbor Seal ◽  
Phoca Vitulina ◽  
Glacier Bay ◽  
Glacier Bay National Park ◽  
Diel Period

Serologic Surveillance of Pathogens in a Declining Harbor Seal (Phoca vitulina) Population in Glacier Bay National Park, Alaska, USA and a Reference Site

2011 ◽  
Vol 47 (4) ◽  
pp. 984-988 ◽  
Author(s):  
Karsten Hueffer ◽  
Darce Holcomb ◽  
Lora R. Ballweber ◽  
Scott M. Gende ◽  
Gail Blundell ◽  
...  
Keyword(s):  
National Park ◽  
Reference Site ◽  
Harbor Seal ◽  
Phoca Vitulina ◽  
Glacier Bay ◽  
Glacier Bay National Park

scholarly journals Source levels and call parameters of harbor seal breeding vocalizations near a terrestrial haulout site in Glacier Bay National Park and Preserve

2017 ◽  
Vol 141 (3) ◽  
pp. EL274-EL280 ◽  
Author(s):  
Leanna P. Matthews ◽  
Susan E. Parks ◽  
Michelle E. H. Fournet ◽  
Christine M. Gabriele ◽  
Jamie N. Womble ◽  
...  
Keyword(s):  
National Park ◽  
Harbor Seal ◽  
Glacier Bay ◽  
Glacier Bay National Park

Hormonal changes and enforced diving in the harbor seal Phoca vitulina. II. Plasma catecholamines

1982 ◽  
Vol 242 (5) ◽  
pp. R528-R532 ◽  
Author(s):  
A. J. Hance ◽  
E. D. Robin ◽  
J. B. Halter ◽  
N. Lewiston ◽  
D. A. Robin ◽  
...  
Keyword(s):  
Recovery Period ◽  
Control Period ◽  
Plasma Catecholamines ◽  
Harbor Seal ◽  
Phoca Vitulina ◽  
Harbor Seals ◽  
Hormonal Changes ◽  
Inotropic Effects ◽  
Arterial Constriction

Plasma epinephrine and norepinephrine concentrations were measured in five harbor seals, Phoca vitulina, during a control period, during a 6-min dive, and during a 30-min postdiving recovery period. Measurements were performed with and without prior glucose administration. Control epinephrine concentrations [189 +/- 118 (SD) pg/ml] and norepinephrine concentrations (340 +/- 191 pg/ml) were similar to resting values in humans. During diving there are dramatic increases in both epinephrine and norepinephrine concentrations, which returned to control values by 30 min of the postdiving recovery period. A similar pattern was found after glucose infusion. The increased catecholamines were not the primary mechanism responsible for arterial constriction during the dive. Persistent diving bradycardia suggests obliteration of the chronotropic effects of catecholamines during the dive. An unchanged stroke volume suggests obliteration of the inotropic effects of catecholamines during the dive. Catecholamines do not appear to be involved in postdiving hyperglycemia and hyperglucogenemia. Neither the regulatory role of increased catecholamines nor the physiological function of increased catecholamines was apparent from the studies. However, dramatic increases in plasma catecholamines during diving appear to be an important component of the hormonal response to prolonged diving in aquatic mammals.

Interactions between instream wood and hydrogeomorphic development within recently deglaciated streams in Glacier Bay National Park, Alaska

Geomorphology ◽  
2011 ◽  
Vol 130 (3-4) ◽  
pp. 208-220 ◽  
Author(s):  
Megan J. Klaar ◽  
David F. Hill ◽  
Ian Maddock ◽  
Alexander M. Milner
Keyword(s):  
National Park ◽  
Glacier Bay ◽  
Glacier Bay National Park ◽  
Instream Wood
Sign in / Sign up

Export Citation Format

Share Document