Application of serological methods to identification of fish prey in diets of seals and dolphins. A review of methods for diet analysis in piscivorous marine mammals. Identification of fish otoliths and bones in faeces and digestive tracts of seals. Otters of Lake Songkla, southern Thailand. Journal of the Otter Trust 1991, 25-32.
Prey remains in grey seal faeces from the Moray Firth area of Scotland.
Recent advances in diet analysis of marine mammals. Symposia of the Zoological Society of London. Diet of common seals at Mousa, Shetland, during the third quarter of 1994. Interactions between seals and salmon in Northeast Scotland. Stomach contents from sperm whales stranded in Denmark.