Reproductive biology of the tiger pleco Panaqolus tankei (Loricariidae) in a lentic system of the Amazon Basin

J Fish Biol. 2018 Oct;93(4):711-714. doi: 10.1111/jfb.13735.

Abstract

This study presents the first information on the reproduction of the recently described tiger pleco Panaqolus tankei, from Lake Bolonha in the north-eastern Amazon Basin. This loricariid has a long reproductive period, fractionated spawning and low fecundity (on average, female gonads contained 37 oocytes), a total length (LT ) at first maturity of 47.4 mm for females and 54.1 mm LT for males. Correlation of the condition factor and gonado-somatic index with environmental variables suggests that turbidity favours P. tankei reproduction in this environment.

Keywords: Panaqolus tankei; Teleostei; abiotic factors; reproductive characteristics.

MeSH terms

  • Animals
  • Brazil
  • Catfishes / physiology*
  • Ecosystem*
  • Female
  • Fertility
  • Male
  • Oocytes
  • Ovary / cytology
  • Ovary / growth & development
  • Reproduction*
  • Rivers
  • Seasons
  • Sexual Maturation