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De Smet, W.M.A.. |
Comparison of the skeletons of stranded or river-dwelling bottle-nosed dolphins with those of delphinarium specimens revealed that many of the former animals had suffered from various diseases. Most wild specimens have broken or lost a part of their teeth or even all of them. In a few cases they show signs of bone erosion (probably by abscesses), bone neoformation, and in a single case a broken mandible. Teeth abrasion may start early in life. Also delphinarium specimens may have broken teeth. Broken ribs can be found in half of the number of specimens. In the wild the ribs healed nicely, but in the delphinarium they hardly did. All the wild specimens show periosteitic phenomena to some degree. Delphinarium specimens are not excepted from them. In one of... |
Tipo: Info:eu-repo/semantics/article |
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Ano: 1977 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=3569 |
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De Smet, W.M.A.. |
Groups of male sperm whales sometimes visit the North Sea and may come close to its southern boundary, the Flemish coast, where moribund or dead specimens may sometimes become stranded at low tide. Subfossil finds prove that this phenomenon has existed for thousands of years, although it is rare, and that several specimens may sometimes become stranded together (as has happened in 1403, 1577 and 1937 and, more recently, in 1994). The stranding on 18 November 1994 involving three sperm whales stranded near Koksijde and one towed to Nieuwpoort has aroused huge interest among the public and has raised several questions and problems as many people interpret this stranding as being the result of pollution or other factors related to present-day human society. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Historical account Marine pollution Pollution Stranding ANE; North Sea. |
Ano: 1997 |
URL: http://www.vliz.be/nl/open-marien-archief?module=ref&refid=788 |
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