منابع مشابه
Virus Threats to Monk Seals
There were no suitable rehabilitation facilities in Greece at that time, and so the policy was still to bring monk seals to the Netherlands for treatment. That's basically against our rules today. The 1988 morbillivirus outbreak in the North Sea underlined the increased risks involved in moving animals in this way. As a result, it was decided that we should offer training and technical expertis...
متن کاملBody growth in Hawaiian monk seals
Body length and axillary girth measurements of more than 600 free-ranging Hawaiian monk seals from 1 to 20 yr old were analyzed. Comparison of fitted von Bertalanffy growth models confirmed there is no evidence of sexual dimorphism in this species. Substantial differences in growth patterns were detected among seven subpopulations representing the species entire geographic range. The age at whi...
متن کاملDo Monk Seals Exert Top-Down Pressure in Subphotic Ecosystems?
Patterns of subphotic fish assemblages on seamounts in the Northwestern Hawaiian Islands were identified and compared for potential structuring influences, including the bottom-up effects of regional oceanic productivity and top-down predation pressure exerted by visiting monk seals (Monachus schauinslandi). Patterns in fish size, density, and biomass were evaluated at the deep extreme (350–500...
متن کاملRange-wide movement patterns of Hawaiian monk seals
THEA C. JOHANOS, Pacific Islands Fisheries Science Center, National Marine Fisheries Service, National Oceanic and Atmospheric Administration, 1601 Kapiolani Boulevard, Honolulu, Hawaii 96814, U.S.A.; ALBERT L. HARTING, Harting Biological Consulting, 8898 Sandy Creek Lane, Bozeman, Montana 59715, U.S.A.; TRACY A. WURTH, Joint Institute for Marine and Atmospheric Research, 1000 Pope Road, Honolu...
متن کاملInitial Defecation Time and Rate of Passage of Digesta in Adult Hawaiian Monk Seals , Monachus schauinslandi
In an effort to gain a better understanding of the digestive physiology of the Hawaiian monk seal, Monachus schauinslandi, we measured the initial defecation time and rate of digesta passage using chromic oxide (Cr2O3) and frozen corn kernels as markers. IDT ranged from 9.5 to 19 h (mean 14 + 4.8 h), which was a longer period of time than that reported for any other pinniped. Rate of digesta pa...
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ژورنال
عنوان ژورنال: Oryx
سال: 1972
ISSN: 0030-6053,1365-3008
DOI: 10.1017/s0030605300010334