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February 20, 2024Journal of the World Aquaculture SocietyOpen Access

Effects of stocking density during simulated transport on physiology and behavior of largemouth bass (Micropterus salmoides)

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Authors

YYYifei YangNanjing Drum Tower HospitalENEdward NarayanSouthern Cross UniversitySRSonia ReyUniversity of Stirling

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Implication

Experimental study demonstrates that high stocking density during simulated transport impairs welfare in largemouth bass, indicating that transport conditions require density limits.

Key Points

  • Simulated transport at high stocking density induces severe physiological and behavioral stress in largemouth bass, accompanied by rapid deterioration of holding water quality.
  • At a high stocking density of 78 g L−1, fish subjected to 3 h of transport exhibited significantly elevated serum cortisol alongside increased fear-related freezing.
  • Evaluation of Micropterus salmoides across four experimental treatments compared static tanks to motion platform transport, monitoring aspartate transaminase and behavior.
  • Highlights the need to restrict stocking density during commercial transit, while mucosal cortisol correlations may enable less invasive welfare monitoring in farmed fish.

Cite This Study

Yang et al. (2024) studied this question.

synapsesocial.com/papers/68e785c1b6db6435876f88bfhttps://doi.org/10.1111/jwas.13054
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