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The role of the inositol phosphate cascade in visual excitation of invertebrate microvillar photoreceptors
It is suggested that the inositol phosphate cascade and a second parallel process that is not dependent on IP3 are involved in the production of the light response.
Effects of Light Adaptation on the Temporal Resolution of Deep-sea Crustaceans1
- T. Frank
- Environmental Science, BiologyIntegrative and Comparative Biology
- 1 August 2003
This is the first example of an increase in temporal resolution due to light adaptation in a deep-sea species, and possible explanations include the activity and bioluminescence mode of preferred prey items, as well as the retention of larval/juvenile adaptations in adult eyes.
Temporal Resolution and Spectral Sensitivity of the Visual System of Three Coastal Shark Species from Different Light Environments
- D. M. McComb, T. Frank, R. Hueter, S. Kajiura
- Environmental SciencePhysiological and Biochemical Zoology
- 28 January 2010
Scotopic spectral sensitivity revealed maximum peaks in the bonnethead and blacknose sharks that correlated with environmental spectra measured during twilight, which is a biologically relevant period of heightened predation.
In Situ Observations on Three Species of Large-Finned Deep-Sea Squids
The manned submersible JOHNSON SEA-LINK II was used for a series of dives on the continental slope of the eastern Gulf of Mexico in September 1995, and it is believed this specimen was a 'big-fin', family Magnapinnidae Vecchione and Young, 1998.
A Novel Vertebrate Eye Using Both Refractive and Reflective Optics
Giant Deep-Sea Protist Produces Bilaterian-like Traces
Spectral composition of bioluminescence of epipelagic organisms from the Sargasso Sea
The spectral characteristics of single identified epipelagic sources of bioluminescence from the western Sargasso Sea were measured with an optical multichannel analyzer (OMA) system during the April, 1985, Biowatt cruise, suggesting that the spectral emissions in the upper water column will vary, based on species assemblage.
Comparative Study of Temporal Resolution in the Visual Systems of Mesopelagic Crustaceans.
- T. Frank
- Environmental ScienceThe Biological bulletin
- 1 April 1999
The temporal characteristics of the visual systems of eight species of mesopelagic crustaceans were studied using the electroretinogram (ERG), showing an unusually high flicker fusion frequency of the deeper living euphausiids, which may be correlated to their preference for bioluminescent prey.
Effects of a decrease in downwelling irradiance on the daytime vertical distribution patterns of zooplankton and micronekton
Results indicate that several species of crustaceans, gelatinous zooplankton, and fish were adjusting their depth distributions to remain within a range of preferred irradiances during an influx of turbid water in Oceanographer Canyon in July 1999.
The correlation of downwelling irradiance and staggered vertical igration patterns of zooplankton in Wilkinson Basin, Gulf of Maine
In situ measurements of the changes in downwelling irradiance at sunset were made simultaneously with observations on changes in animal distribution patterns in Wilkinson Basin, Gun' of Maine, indicating that the vertical migrations for several species of large zooplankton are staggered.