渔业现代化2026，Vol.53Issue(1)：54-62,9.DOI:10.26958/j.cnki.1007-9580.2026.01.005
深海养殖网箱提升过程中大黄鱼行为特性研究
Behavioral characteristics of Larimichthys crocea during the submersible process of deep-sea aquaculture cages
摘要
Abstract
Rapid decompression resulting from abrupt depth changes during the ascent of deep-sea aquaculture cages can induce severe stress or even mortality in physoclistous fish,becoming a critical bottleneck in the development of offshore aquaculture.In this study,Larimichthys crocea was used as a model species to investigate behavioral and physiological responses under different decompression rates and staged decompression strategies.A laboratory-based hyperbaric simulation system was constructed to replicate the ascent process from 20 m depth(200 kPa)to the surface.Two decompression modes constant rate and staged decompression were designed,with behavioral responses recorded and quantified using image processing techniques.Key metrics included instantaneous swimming speed,surface probing frequency,and tail beat frequency.Results showed that under constant-rate decompression,fish exhibited the most stable behavior at 10 kPa/min,with an average swimming speed of 0.028 m/s,probing frequency of 18 times/min,and tail beat frequency of 1.61 Hz.In the staged decompression group,a 5-minute pause at 50 kPa(approx.5 m depth)significantly alleviated stress,with swimming speed decreasing from 0.085 to 0.037 m/s,probing frequency from 31.11 to 1 time/min,and tail beat frequency from 1.56 to 0.52 Hz.Over half of the individuals displayed clear behavioral recovery during the pause,a pattern not observed in other treatments.These findings indicate that a decompression strategy combining a moderate rate(10 kPa/min)with a brief pressure hold at 50 kPa can effectively balance operational efficiency and animal welfare.This study provides a scientific basis for decompression management during cage lifting in the offshore farming of L.crocea and other physoclistous fish.关键词
大黄鱼/深远海养殖/闭鳔鱼类/行为应激反应/网箱升网策略Key words
Larimichthys crocea/offshore aquaculture/physoclistous fish/behavioral stress response/cage ascent strategy分类
农业科技引用本文复制引用
杨旭,倪金槐,桂福坤,宗凯,蓝孙兆聪,卢建鹏,冯德军,李训猛..深海养殖网箱提升过程中大黄鱼行为特性研究[J].渔业现代化,2026,53(1):54-62,9.基金项目
国家重点研发计划项目(2024YFD2400200) （2024YFD2400200）
浙江省"尖兵""领雁"科技计划项目(2023C02029) （2023C02029）
国家自然科学基金(32503264) （32503264）
平阳县科技强农产业研究院产业提升项目(2024PY08) （2024PY08）
国家自然科学基金(42306229) （42306229）
