Seasonal fluctuations in the incidence of epidermal papillomas of the European eel Anguilla anguilla L.
摘要：
The eels of the Lower Elbe (15–35 cm total length, freshwater age groups III–V) show a high incidence of epidermal papillomas. These neoplasms, situated mainly in the snout region, show a marked seasonal fluctuation. The incidence is low in spring and autumn (min. 2–3 %) and rises sharply in summer (max. 28 %). The size of the papillomas is also smaller during the colder seasons of the year (up to 300 mm 3 ) reaching a maximum in August/ September (up to 900 mm 3 ). The increase in growth of the tumours follows the rise in frequency with a delay of 3–4 weeks. These seasonal fluctuations of tumour growth are possibly related to the alteration of the water temperature and oxygen content.
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DOI：
10.1111/j.1095-8649.1975.tb04617.x
被引量：
年份：
2010
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