Behavioural responses of hatchery-reared and wild cod Gadus morhua to mechano-acoustic predator signals

被引：14

作者：

Meager, J. J. ^{[1
]}

Rodewald, P. ^{[1
,2
]}

Domenici, P. ^{[3
]}

Ferno, A. ^{[1
,4
]}

Jarvi, T. ^{[5
,6
]}

Skjaeraasen, J. E. ^{[1
]}

Sverdrup, G. K. ^{[1
]}

机构：

[1] Univ Bergen, Dept Biol, N-5020 Bergen, Norway

[2] Univ Helsinki, Dept Biosci, FI-00014 Helsinki, Finland

[3] CNR IAMC Loc Sa Mardini, I-09072 Torregrande, Oristano, Italy

[4] Inst Marine Res, N-5817 Bergen, Norway

[5] Swedish Board Fisheries, S-17893 Drottningholm, Sweden

[6] Stockholm Univ, Dept Zool, S-10691 Stockholm, Sweden

来源：

JOURNAL OF FISH BIOLOGY | 2011年 / 78卷 / 05期

关键词：

escape responses; farmed; learning; predator defences; restocking; sensory; ESCAPE RESPONSES; HABITAT USE; ANTIPREDATOR RESPONSES; LOCOMOTOR PERFORMANCE; NORTHERN PIKE; VISUAL CUES; FISH; START; VARIABILITY; RISK;

D O I：

10.1111/j.1095-8649.2011.02951.x

中图分类号：

S9 [水产、渔业];

学科分类号：

0908 ;

摘要：

The behavioural responses of wild (predator-experienced) and hatchery-reared (predator-naive) cod Gadus morhua to standardized mechano-acoustic (MA) stimuli were compared in the laboratory. Wild fish responded mainly with freezing and fast-start escapes away from the stimulus, whereas hatchery-reared fish often ignored or approached the stimulus. Wild fish also had stronger responses, turning faster during escapes and reducing activity immediately after the stimulus. Both fish types were less active on a 'risky' bare substratum after the stimulus. The antipredator responses of wild fish were consistent to repeated stimuli, whereas hatchery-reared fish that had generally only encountered harmless stimuli showed more variable responses with lower repeatability. This suggests that experience plays a role in shaping the behavioural response of fishes to MA stimuli. (C) 2011 The Authors Journal of Fish Biology (C) 2011 The Fisheries Society of the British Isles

引用

页码：1437 / 1450

页数：14

共 59 条

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