Gastric evacuation in European seabass Dicentrarchus labrax (Linnaeus, 1758), forced-fed on commercial pellets

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Bal H., Durrani O., SEYHAN K.

INDIAN JOURNAL OF FISHERIES, vol.70, no.1, pp.25-30, 2023 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 70 Issue: 1
  • Publication Date: 2023
  • Doi Number: 10.21077/ijf.2023.70.1.100596-04
  • Journal Name: INDIAN JOURNAL OF FISHERIES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.25-30
  • Keywords: Aquaculture, Feeding regimes, General power function, Surface -area dependent, COD GADUS-MORHUA, PREDATORY GADOIDS, FEEDING FREQUENCY, FOOD-CONSUMPTION, STOMACH CONTENTS, MEAL SIZE, FED DIETS, TEMPERATURE, MODEL, FISH
  • Karadeniz Technical University Affiliated: Yes

Abstract

The effects of meal size and body size on gastric evacuation rates were parameterised for European seabass Dicentrarchus labrax (Linnaeus, 1758). A total of three gastric evacuation experiments were performed on small (15.7 +/- 0.8 cm) and large (21.5 +/- 0.4) size fish forced-fed with meals of 0.5 and 1.5 g composed of commercial pellets. The stomach contents were then recovered by serial slaughtering the fish at predetermined post-prandial times. The surface-area dependent function adequately describes the gastric evacuation in European seabass independently of meal size. A power function of fish length L was then employed to evaluate the impact of body size, revealing its notable effect on gastric evacuation rates of European seabass.