Age determination and growth of eel, Anguilla anguilla (L.), in lake Fertő Hungary

G. Paulovits, P. Biró

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Abstract

Ground and polished otolith sections, 0.2 mm thick, were produced from both sagittae of each fish, and repeated readings of the growth marks resulted in more accurate estimates of fish age. Supernumary zone formation in eel otoliths was a common phenomenon. The growth in length of the eels was accurately described by Bertalanffy's model using back-calculated lengths. Values of L = 1459 mm, K = 0.058 and t0 = -0.869 years were determined. Mean incremental growth was calculated as 5-9 cm per year, showing that length increases rapidly with age. However, the growth of the eel population in Lake Fertő has become stunted, probably due to overstocking since 1975.

Original languageEnglish
Pages (from-to)101-110
Number of pages10
JournalFisheries Research
Volume4
Issue number2
DOIs
Publication statusPublished - Jul 1986

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ASJC Scopus subject areas

  • Aquatic Science

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