Sensory deprivation and sensory input in rearing experiments

Blaxter, J. H. S.

doi:10.1007/bf01609937

Cited by 34 publications

(22 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this context Blaxter (1970) in his essay on sensory deprivation and sensory input described experiments with herring larvae where tank-reared larvae which were subjected to additional light and current stimuli compared with controls showed a more homogeneous distribution in the experimental tanks, probably due to increased activity of the single individual.…”

Section: Swimming Speed and Performancementioning

confidence: 99%

Laboratory and in-situ studies on larval development and swimming performance of Pacific herringClupea harengus pallasi

Westernhagen

Rosenthal

1979

Helgolander Wiss. Meeresunters

View full text Add to dashboard Cite

Pacific herring Clupea harenguspallasilarvae were caught alive in Departure Bay, B.C., Canada, after being attracted towards light. Growth of larvae was observed during a 5-week period. Larval total length (measured in live anaesthetized specimens) during this period increased from 8 mm to 28 mm. Development of condition factor was observed through the yolk-sac stage until the early post yolk-sac stage. Condition factor decreased linearly in yolk-sac larvae and increased in post yolksac specimens. Swimming performance of Pacific herring larvae in their natural habitat was studied during the day by means of direct observations and compared with laboratory investigations conducted with "wild" and laboratory-reared larvae. In the laboratory (black 35-cm diameter tanks, 10 ~ "wild" larvae swam more slowly and were less active (measured as % active time) than in their natural habitat. Laboratory reared larvae showed depressed activity when compared with "wild" larvae observed in the sea. This phenomenon was attributed to deprivation of stimuli in confined containers which might have some bearing on the validity of data gained from controlled ecosystem experiments.

show abstract

Section: Swimming Speed and Performancementioning

confidence: 99%

Laboratory and in-situ studies on larval development and swimming performance of Pacific herringClupea harengus pallasi

Westernhagen

Rosenthal

1979

Helgolander Wiss. Meeresunters

View full text Add to dashboard Cite

show abstract

“…Abnormal pigmentation in both Japanese flounder Paralichthys olivaceus (Temminck & Schlegel)(Tanaka et al ., 1998) and plaice Pleuronectes platessa L. (Anon, 1966), along with unnatural off‐bottom behaviour in Japanese flounder (Tsukamoto et al ., 1997), have increased the visibility of the released, cultured flounders to predators. In order to maximize their cryptic abilities, studies have suggested that flatfishes reared in tanks devoid of any sediment require an acclimation period to ‘learn’ to bury effectively in sediment and to adjust their colour to match that of the background prior to release (Blaxter, 1970; Howell, 1994). …”

Section: Introductionmentioning

confidence: 99%

Factors affecting the post‐release survival of cultured juvenile Pseudopleuronectes americanus

Fairchild

Howell

2004

Journal of Fish Biology

View full text Add to dashboard Cite

Laboratory experiments were performed with cultured and wild juvenile winter flounder Pseudopleuronectes americanus to evaluate differences in behaviour and adaptation affecting post-release vulnerability to predation. Studies revealed that the cryptic abilities of cultured winter flounder increased over time. Sediment-naı¨ve, cultured fish required a minimum of 2 days to improve their burying skills and at least 90 days for colour adaptation to match the sediment. Cultured winter flounder selected sediments consisting of small grains and colours matching their own pigment. Cultured winter flounder, regardless of their colour, were significantly more vulnerable to predation by birds. Additionally, cultured fish reacted differently than wild winter flounder when exposed to cues from a potential predator. # 2004 The Fisheries Society of the British Isles

show abstract

“…Cronley-Dillon 1964, Jacobson & Gaze 1964, Sutherland 1968, Trevarthen 1968). In addition, the perceptual field of a fish's retina can be limited by environmental (or experiential) restrictions (or deprivations) during early development (Blaxter 1970, Ahlbert 1976. It is important, therefore, to control for these variables when considering trends in food selectivity by fish.…”

Section: Feeding In Atlantic Salmon Alevinsmentioning

confidence: 99%

“…Hatcheryreared salmon do not feed as effectively upon release as do their wild counterparts and it may take up to two months for fish reared on artificial hatchery food to learn how to feed successfully on living prey (MacCrimmon 1954, Fenderson et al 1968, Blaxter 1970, Sosiak et al 1979, Shustov et al 1980, Dickson & MacCrimmon 1982. Congruence, or lack of it, between developmental changes in the speed with which fish learn and forget (the dynamics of their memories) and the life histories and ecologies of available prey probably affect diet.…”

Section: Cognition As a Source Of Variance In Fish Foraging Behaviourmentioning

confidence: 99%

Foraging behaviour in fishes: perspectives on variance

Marcotte

Browman

1986

Environ Biol Fish

View full text Add to dashboard Cite

SynopsisThe positive relationship between size of prey and frequency of ingestion by predators has been a focal point of investigations in foraging ecology. Field studies compare the frequency distribution of prey sizes in the predator's gut with that in the environment. Laboratory and field (enclosure) studies are based upon comparison of the frequency distributions of prey sizes in controlled environments, before and after the introduction of a predator. 'Optimal7 caloric return for foraging effort (i.e. the theory of optimal foraging) has been wi~dely used as a guiding principle in attempts to explain what a fish consumes. There is a body of information, however, which seems to indicate that the perceptual potentialities and cognitive abilities of a predator can account for both the direction of the prey size versus ingestion frequency relationship and the variance surrounding it. Part of this variance may be evidence of 'systematic ambiguity', a property of cognitive sk~lls causing predators to respond to the same stimulus in different ways and to different stimuli in the same way. More extensive examination of cognitive skills (minimally defined as learning, remembering and forgetting) in fish may permit causal interpretations (immediate and ultimate) of variance in predatory skills. In such a paradigm of foraging behaviour, environmental stimulus is not taken as the predator's object of response ('percept); a cognitive representation connects mind to stimulus and this is the criterion for the act of perception. Cognition, here considered as a formal system which acts upon representations, connects mind to response and thus to adaptation. Studies of the relationships among rates of learning, long and shortterm memoly, rates of forgetting, prey behavior, size and population turnover rates, lateralization of brain functions, die1 fluctuations in predator activity levels and sleep, experience, and 'critical periods' in the development of the predator's nervous system should be examined in relation to foraging behaviour.

show abstract

Sensory deprivation and sensory input in rearing experiments

Cited by 34 publications

References 29 publications

Laboratory and in-situ studies on larval development and swimming performance of Pacific herringClupea harengus pallasi

Laboratory and in-situ studies on larval development and swimming performance of Pacific herringClupea harengus pallasi

Factors affecting the post‐release survival of cultured juvenile Pseudopleuronectes americanus

Foraging behaviour in fishes: perspectives on variance

Contact Info

Product

Resources

About