@ARTICLE{Weiner_January_An_1981,
 author={Weiner, January and Woyciechowski, Michał and Zieliński, Jan},
 volume={vol. 2},
 number={No 1-2},
 journal={Polish Polar Research},
 pages={153-163},
 howpublished={online},
 year={1981},
 publisher={Polish Academy of Sciences},
 publisher={Committee on Polar Research},
 abstract={Twelve mineral elements and total ash were examined in regard to the possible use as the estimators of digestibility of natural food in Antarctic seals. Four of them: phosphorus, calcium, copper and zinc have proved to give most reliable results. The estimated total dry mass and organic matter digestibilities of fish food in Weddell seals (Leptonychotes weddelli (Lesson)) averaged 82 and 91%, while the corresponding values for krill eaten by crabeaters (Lobodon carcinophagus (Hombron and Jaequinot)) and leopard seals (Hydrourga leptonyx (Blainville)) reached approximately 87 and 91%, respectively.},
 type={Article},
 title={An attempt to determine the digestibility of natural food in Antarctic seals using tracer method. A preliminary study},
 URL={http://www.journals.pan.pl/Content/111566/PDF/1981_1-2_153-163.pdf},
 keywords={Antarctic seals, digestibility, mineral elements},
}