Fish Behaviour, Learning, Aquaculture and Fisheries

Fernö, Anders; Huse, Geir; Jakobsen, Per Johan; Kristiansen, Tore; Nilsson, Jonatan

doi:10.1002/9781444342536.ch16

Cited by 25 publications

(24 citation statements)

References 244 publications

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“…Identifying fish as sentient beings, research in fish cognition and behaviour provides us with insights on social learning, organization, kin selection, reciprocity, cooperation, and Machiavellian intelligence, all part of the elevated suite of 'uniquely' human characteristics. A rarely considered issue in fisheries is that fishing may remove long-lived, experienced fish (Fernö et al 2011) that act as sources of social learning in forage copying behaviour for others . Equally important and often overlooked, the emotion system in fish (Kalueff et al 2012;Martins et al 2012) may promote the behavioural robustness of individuals (which can exhibit distinct 'personalities'), the evolvability of gene pools, and the rate of evolutionary innovation at several trait architectural levels (Giske et al 2014).…”

Section: Resultsmentioning

confidence: 99%

Fish commoditization and the historical origins of catching fish for profit

Pitcher

Lam

2015

Maritime Studies

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Humanity's relationship with fish dates back to prehistory, when ancestral hominins evolved the capacity to exploit aquatic resources. The impacts of early fishing on aquatic ecosystems were likely minimal, as primitive technology was used to harvest fish primarily for food. As fishing technology became more sophisticated and human populations dispersed and expanded, local economies transitioned from hunter-gatherer subsistence to barter and complex trade. This set up a positive feedback ratcheting fishing technology, mercantilization, and the commoditization of fish. A historical narrative based on archaeology and documentary evidence follows the principal changes in fisheries through evolutionary, ancient, classical and medieval eras to modern times. Some local depletions are recorded from early fishing, but from the 1950s, massive impacts of serial depletions by size, species, area and depth are driven by commoditized fishery products. North Sea herring fisheries are described in detail. Today's severely depleted wild fish populations reflect social institutions built on global markets that value fish predominantly as a consumptive commodity, risking future ecological integrity and human food security. To sustain global fisheries, decommoditization strategies that sustain human and ecosystem relationships with fish beyond their commodity value are needed.

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Section: Resultsmentioning

confidence: 99%

Fish commoditization and the historical origins of catching fish for profit

Pitcher

Lam

2015

Maritime Studies

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“…to develop the skill to perform the rewarded behaviour. Behavioural actions towards the feeder that are not performed correctly, such as "nosing" on the trigger instead of pulling it, are not rewarded (Fernö et al 2011). Individual differences, in the ability of fish to learn to operate the feeder correctly may be an explanation as to why some individuals actuate the trigger more than others.…”

Section: Discussionmentioning

confidence: 99%

“…An important aspect is also that to actuate the trigger in a predictable way, the fish must learn the trick (i.e. how to pull the trigger) and not only the association between the trigger and the food (Fernö et al 2011). …”

Section: Introductionmentioning

confidence: 99%

Evaluation of self-feeders as a tool to study diet preferences in groups of Atlantic cod (Gadus morhua)

Millot

Nilsson

Fosseidengen

et al. 2012

Aquat. Living Resour.

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-Among other applications, self-feeding has been used to study food preferences in fish allowing them to choose between feeders with different food content. Preference tests assume that (i) trigger actuations are motivated by appetite, (ii) fish can learn which feeder contains which food and discriminate between feeders solely on the basis of their content, and (iii) in groups of fish, the triggering preferences is representative for the individuals of the group. We studied individual triggering behaviour in four groups of 14 Atlantic cod (length of 34 ± 2 cm, weight of 424 ± 102 g, mean ± SE, water temperature comprised between 7−8• C) that were first given the choice between two self-feeders with identical content (Period 1 of 14 days) and subsequently with one feeder full and the other empty (Period 2 of 14 days) . In all four groups, one or two individuals performed the majority of the actuations, and in three groups the high triggering fish was a female high-ranked for size and growth rate. Cod displayed a preference for one of the two feeders despite their identical content. When the preferred feeder was emptied, the preference switched after one to eight days but both feeders were still actuated throughout the experiment. In conclusion, the assumption that actuation frequency reflects food preference and is representative for the individuals of the group may not be true, at least for Atlantic cod. If aiming at determining preferences representative for the whole population multiple representative fish should be kept isolated in separate tanks, with self-feeders containing each food option, on each tank.

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“…Bereji kian 1995, Pearsons et al 2007, Yokota et al 2007). The behavioral causes of hatchery fishes' reduced survival compared to their wild-born counterparts has led many to suggest training hatchery fishes in specific life skills, such as predator recognition, prior to their release (Brown & Laland 2001, Fernö et al 2011.…”

Section: Introductionmentioning

confidence: 99%

“…There is wide support in the literature that fishes can learn to recognize novel predators by associating a predator's odor with the release of alarm cue (Brown et al 2011a and references therein). The widespread ability of many fish species to use chemical cues to identify novel predators, as well as to detect and appropriately respond to known predators, has led many to suggest that the survival of hatchery-raised fishes may be improved by exposing these fishes to predator odor in conjunction with an alarm cue prior to placement into a natural environment (Brown & Laland 2001, Fernö et al 2011. However, there is mixed support regarding whether predator recognition training increases survival (Berejikian et al 1999, Hawkins et al 2007, D'Anna et al 2012, Wahl et al 2012.…”

Section: Introductionmentioning

confidence: 99%

Retention of learned predator recognition in an endangered sucker Chasmistes liorus liorus

Archer¹,

Crowl²

2014

Aquat. Biol.

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Captive propagation and restocking of native fishes is a common conservation strategy. However, hatchery-reared fishes are predator-naïve, and thus many stocked fishes are lost to predation, reducing the effectiveness of restocking programs. Many fishes use odor to identify known predators and, through the detection of chemical alarm cues, learn to recognize novel predators. A large body of research has focused on the efficacy of using predator odors in conjunction with chemical alarm cues to train hatchery-reared fishes to recognize predators prior to stocking. While it appears possible to train most fishes to recognize a novel predator through exposure to olfactory cues, few studies have shown that this training translates into increased survival for trained fishes. Recently, it has been proposed that hatchery fishes do not retain the learned associations long enough for hatchery training to result in increased survival, though few studies have quantified how long hatchery-reared fishes do retain learned associations. We conducted a series of laboratory experiments that demonstrate hatchery-raised June sucker Chasmistes liorus liorus, an endangered sucker endemic to Utah Lake, Utah, USA, can learn to recognize a novel predator (largemouth bass Micropterus salmoides). We also show that this learned association is retained for at least 2 d, but is lost by 10 d after initial exposure. Our results suggest that in the absence of reinforcement, June sucker do not retain learned predator recognition long enough to expect hatchery training to translate into increased survival.

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Fish Behaviour, Learning, Aquaculture and Fisheries

Cited by 25 publications

References 244 publications

Fish commoditization and the historical origins of catching fish for profit

Fish commoditization and the historical origins of catching fish for profit

Evaluation of self-feeders as a tool to study diet preferences in groups of Atlantic cod (Gadus morhua)

Retention of learned predator recognition in an endangered sucker Chasmistes liorus liorus

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