Biometric relationships between body size and bone lengths in fish prey of the Eurasian otter Lutra lutra:
Title:
Biometric relationships between body size and bone lengths in fish prey of the Eurasian otter Lutra lutra: chub Leuciscus cephalus and perch Perca fluviatilis
e determined regression relat ionships between head bone lengths and body size (standard length and weight) in chub Leuciscus cephalus and Eurasian perch Perca fluviatilis, two species taken frequently by the otter in the River Lee catchment. All relationships yielded significant linear equations, whereas those for bone vs. body weight were logarithmic. Regression slopes for head bones do not differ greatly within species but do across species of the same family.