Photic Behaviour and Vertical Migration in Herring Larvae

Wales, W.

doi:10.1080/10236248409387041

Cited by 22 publications

(28 citation statements)

References 17 publications

(28 reference statements)

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“…More recently, Champalbert et al (1991) confirmed such phototactic sign switching in S. solea larvae. Our red drum threshold phototaxis intensities cannot be compared with those reported by Blaxter (1968aBlaxter ( , b, 1969, Wales (1984) and Champalbert et al (1991), because (1) it is not possible to convert photometric units (meter-candles and luxes of white light used by Blaxter and Wales) to radiometric units (photons) or convert from watts of white light of unknown emission spectrum (used by Champalbert et al 1991) to photons, (2) the relative emission spectra of the light sources are not likely to be the same, and (3) the different species do not necessarily exhibit similar action spectra for phototaxis. We can say, however, that all these phototactically tested fish exhibit negative responses at very low light levels and positive responses at higher intensities.…”

Section: Light Intensity (Pe M-2 S-')contrasting

confidence: 41%

“…However. Wales (1975Wales ( , 1984, using a method similar to that of Blaxter (1968a), tested for and found no phototactic evidence of such a system in blinded Clupea harengus and Pleuronectes platessa larvae, although he did find evidence of extraretinal photosensitivity when larvae were allowed to migrate vertically in response to overhead light cues. It is possible that negative phototaxis at low intensities is rod-mediated (assuming rod development at this stage) while positive phototaxis at higher intensities is cone-mediated, or that different cone systems are controlling these responses.…”

Section: Light Intensity (Pe M-2 S-')mentioning

confidence: 99%

“…showed positive phototaxis at higher stimulus intensiWith respect to negative phototaxis, we estimated a Using phototactic behavioral assays, Blaxter (1968a) and Wales (1984) reported that herring Clupea harengus larvae exhibited positive phototaxis at higher white light intensities and negative phototaxis at lower intensities. Blaxter (1969) similarly found negative phototaxis at low light levels in plaice Pleuronectes platessa larvae and sole Solea solea larvae, as well as some evidence of positive phototaxis at higher intensi- Table 4.…”

Section: Light Intensity (Pe M-2 S-')mentioning

confidence: 99%

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Ontogeny of phototactic behavior in red drum larvae (Sciaenidae: Sciaenops ocellatus)

Stearns¹,

Holt²,

Forward³

et al. 1994

Mar. Ecol. Prog. Ser.

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Phototactic behavior of red drum Sciaenops ocellatus larvae (age = 1 to 17 d posthatch, size = 2.5 to 7.5 mm standard length) was examined. Numerical percent of test larvae phototactically responding per sample was determined after dark and light adaptation upon exposure to different stimulus light intensities and compared with dark or light controls. The relative spectral composition In these experiments was similar to that measured at mid-afternoon at 1 m depth in a coastal channel where red drum larvae naturally occur. Day 1 larvae were not photoresponsive; all tested older larvae showed positive phototaxis at higher stimulus intensities [> ca 10-4 (Day 16) to 10-' (Day 3) pE m-2 S-'] and negative phototaxis at lower light levels [as low as ca 10-S (Day 3) to 10-' (Day 5) pE m-' S-']. The light range for positive phototaxis generally increased with larval age, as did the percent positive response when tested at the same light levels. These results indicate an ontogenetic increase in photoresponsiveness, beginning as early as Day 3 posthatch. Light-adapted larvae as young as Day 4 exhibited a lower response than dark-adapted larvae at the same stimulus intensities, indicating dark and light adaptation. Estimated intensity thresholds for negative phototaxis were compared with nearbottom daylight intensities in 2 coastal channels where red drum larvae occur. Results indicate there is sufficient daylight available throughout the water column in the field for photoperception by red drum larvae. Using an estimate from the literature of a 3 to 4 log unit higher threshold for feeding than for negative phototaxis, we conclude that natural intensities at depth are adequate for visual predation during daylight hours.

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Section: Light Intensity (Pe M-2 S-')contrasting

confidence: 41%

Section: Light Intensity (Pe M-2 S-')mentioning

confidence: 99%

Section: Light Intensity (Pe M-2 S-')mentioning

confidence: 99%

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Ontogeny of phototactic behavior in red drum larvae (Sciaenidae: Sciaenops ocellatus)

Stearns¹,

Holt²,

Forward³

et al. 1994

Mar. Ecol. Prog. Ser.

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“…The main input parameter to this algorithm seems to be illumination (Huse 1992), and a number of investigations have described positive and negative phototaxis in marine fish larvae (e.g. : Bulowsky & Meade 1983, Corassa & Nickurn 1981, Naas & Mangor-Jensen 1990, Wales 1984. Accordingly, illumination preference in different marine fish larvae, both in relation to vertical positioning (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…Accordingly, illumination preference in different marine fish larvae, both in relation to vertical positioning (e.g. : Blaxter 1973, Matthews 1984, Swenson and Matson 1976, Wales 1984 and fl!St feeding (e.g. : Batty 1987, Batty et al 1990, Ellertsen et al 1980) is extensively investigated.…”

Section: Introductionmentioning

confidence: 99%

Illumination in first feeding tanks for marine fish larvae

Naas

Huse

Iglesias

1996

Aquacultural Engineering

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illumination levels were measured in three artificially illuminated tanks: a black tank, a white tank and a tank with black sides and white bottom, in order to test how well normal tank illumination in different tank types corresponds to natural illumination conditions for flrst feeding of marine fish larvae. Measurements were made with clear water and with algae added ("green water").The black tank had low wall and bottom illumination. The white tank had high wall and bottom illumination. The black walled white bottomed tank had low wall and high central and bottom illumination. Green water attenuated light substantially. The black tank seemed best suited to reproduce natural illumination conditions. The white tank was not suited. The black walled white bottomed tank had interesting properties, but species specific tests would have to be carried out to fme tune the reflective properties of the bottom. Green water seemed to be beneficial in all tests.

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Photoregulatory behavior of bluegill,Lepomis macrochira, in a virtual light gradient

Ham

Neill

1993

Environ Biol Fish

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Photic Behaviour and Vertical Migration in Herring Larvae

Cited by 22 publications

References 17 publications

Ontogeny of phototactic behavior in red drum larvae (Sciaenidae: Sciaenops ocellatus)

Ontogeny of phototactic behavior in red drum larvae (Sciaenidae: Sciaenops ocellatus)

Illumination in first feeding tanks for marine fish larvae

Photoregulatory behavior of bluegill,Lepomis macrochira, in a virtual light gradient

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