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Non‐lethal gill biopsy of juvenile hybrid sturgeon ( A cipenser ruthenus ♀ × A . schrenckii ♂): validity and impact on growth and osmoregulation
Author(s) -
Zhao F.,
Zhuang P.,
Zhang T.,
Zhang L.,
Liu J.,
Hou J.
Publication year - 2014
Publication title -
journal of applied ichthyology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 62
eISSN - 1439-0426
pISSN - 0175-8659
DOI - 10.1111/jai.12554
Subject(s) - biology , osmoregulation , sturgeon , juvenile , brackish water , fishery , zoology , fish <actinopterygii> , salinity , ecology
Summary The objective of this study was to validate a gill biopsy method for non‐lethal monitoring of the osmoregulatory status of young sturgeon in estuary areas. After gill biopsy, hybrid sturgeon ( A cipenser ruthenus ♀ × A . schrenckii ♂) were transferred from freshwater to brackish water (10 ppt) for 6 weeks. Mortality, serum osmolality, ion concentrations and gill N a + , K + ‐ ATP ase activity of fish exposed to brackish water was measured. No detrimental effects on subsequent survival, growth or osmoregulation of hybrid sturgeon were observed.