Dear Rob, Lepiksaar & Heinrich (1977) give size regression data for Esox lucius, Rutilus rutilus, Leuciscus idus, Perca fluviatilis. There are more regression data in Heinrich (1987). References: Lepiksaar, Johannes & Heinrich, Dirk (1977): Untersuchungen an Fischresten aus der frühmittelalterlichen Siedlung Haithabu, Berichte über die Ausgrabungen in Haithabu 10, Neumünster Heinrich, Dirk (1987): Untersuchungen an mittelalterlichen Fischresten aus Schleswig – Augrabung Schild 1971 – 1975, Neumünster -- KNOCHENARBEIT Hans Christian Küchelmann Diplom-Biologe Findorffstrasse 12, D-28215 Bremen, Germany tel: +421 / 61 99 177 fax: +421 / 37 83 540 mail: [log in to unmask] web: http://www.knochenarbeit.de ---- Robert Losey schrieb: > Hello: > I am wondering if anyone working in Eurasia knows of regression formulas > that have been developed for size reconstruction of the following fish: > Esox lucius (pike) > Coregonus autumnalis migratorius (omul)--or other whitefish species > Leuciscus idus (ide) > Leuciscus leuciscus baikalensis (dace) > Rutilus rutilus lacustris (roach) > Perca fluviatilis (perch) > Thymallus arcticus (greyling)--this or other species of the genera > Thanks > Rob Losey >