Evaluation of the role of enzyme activities in the silvering process of European eels (Anguilla anguilla)

This study was carried out to determine the relationships between various morphological parameters, body condition data, and digestive and stress enzyme activities due to silvering in European eel ( Anguilla anguilla L.) collected from four locations in Turkey. The yellow and silver eels were caught...

Full description

Saved in:
Bibliographic Details
Published in:Ichthyological research 2023-01, Vol.70 (1), p.132-141
Main Authors: Ertürk Gürkan, Selin, Mestav, Burcu, Yalçin Özdilek, Şükran
Format: Article
Language:English
Subjects:
Anguilla anguilla
Animal Systematics/Taxonomy/Biogeography
Biomedical and Life Sciences
Body condition
Body fat
Body length
Catadromous species
Catalase
Condition factor
Ecology
Eels
Enzymatic activity
Enzyme activity
Enzymes
Fins
Freshwater & Marine Ecology
Glutathione peroxidase
Gonadosomatic index
Lakes
Life Sciences
Marine fishes
Morphology
Parameters
Pepsin
Physiology
Superoxide dismutase
Trypsin
Zoology
α-Amylase
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:This study was carried out to determine the relationships between various morphological parameters, body condition data, and digestive and stress enzyme activities due to silvering in European eel ( Anguilla anguilla L.) collected from four locations in Turkey. The yellow and silver eels were caught from Asi River, Köyceğiz, Güllük Bay, and Bafa Lake in November–December 2020. Total body length, eye diameter, and pectoral fin length were measured as morphological parameters. In addition, body fat percentage, gonado-somatic index, and Fulton’s condition factor were calculated, and also weight was assayed as body condition data. The variations of α-amylase, lipase, trypsin, and pepsin enzymes, and superoxide dismutase, catalase, and glutathione peroxidase enzyme activities were measured. The results supported the differences of yellow and silver stage samples in terms of both morphological and physiological parameters and also showed that the digestive and stress enzyme activities of the silver and yellow stage samples were significantly different ( p ≤ 0.05). We think this study will make a physiological contribution in terms of digestive and stress enzyme levels to better understand and elaborate the silvering stage of eels.
ISSN:1341-8998
1616-3915
DOI:10.1007/s10228-022-00870-5