Get The Visual System of Fish PDF

By Ellis R. Loew, William N. McFarland (auth.), Ron Douglas, Mustafa Djamgoz (eds.)

ISBN-10: 9400904118

ISBN-13: 9789400904118

ISBN-10: 9401066728

ISBN-13: 9789401066723

A query usually requested of these folks who paintings within the likely esoteric box of fish imaginative and prescient is, why? to a few people the reply turns out seen - what percentage different visible scientists get to dive in a tropical lagoon within the identify of technological know-how after which may be able to consume their matters for dinner? notwithstanding, there are larger, or a minimum of scientifically extra applicable, purposes for engaged on the visible process of fish. First, by way of numbers, fish are via a ways an important of all vertebrate periods, most likely accounting for over part (c. 22 000 species) of all famous vertebrate species (Nelson, 1984). moreover, lots of those are of industrial value. Secondly, if one of many examine goals is to appreciate the human visible approach, animals resembling fish can let us know very much, due to the fact that in lots of methods their visible platforms, and particularly their eyes, are just like our personal. this is often lucky, considering there are a number of innovations, resembling intracellular retinal recording, that are important to our figuring out of the visible procedure, that can't be played oftentimes on primates. The chilly­ blooded fish, nonetheless, is a perfect topic for such experiences and masses of what we all know approximately, for instance, the basics of data processing within the retina is predicated on paintings performed on fish (e. g. Svaetichin, 1953).

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Numbers above each curve are the boundary frequencies in Hz for 50% and 90% of each power spectrum. (b) Circles, photopic critical fusion frequencies (CFF); filled circles, scotopic CFF values; black bars, calculated frequencies at which contrast sensitivity should be maximal, based on the assumption that maximal sensitivity approximates 15% of the photopic CFF values. The horizontal line indicates range of photopic CFF for bony fishes. 11). As a result, although the average downwelling vector irradiance diminishes exponentially, it is characteristic that the changes in light intensity (amplitude of fluctuation) will vary most at the focal depth of a simple wave.

And Aoki, K. (1974) E-vector sensitivity patterns in the goldfish optic tectum. J. , 95, 13-27. H. B. (1970) Field evidence for polarized light sensitivity in the fish Zenarchopterus. , 228, 85-7. H. B. (1972) Field demonstration of polarotaxis in the fish Zenarchopterus. J. Exp. , 180, 33-54. H. and Hashimoto, H. (1974) E-vector discrimination by the goldfish optic tectum. J. , 95, 1-12. H. E. (1956) Quantitative effect of the sun's position on submarine light polarization. J. Mar. , 15, 149-69.

H. (1958) Factors, mainly depth and wavelength, affecting underwater polarized light. J. Mar. , 16, 283-307. H. (1981) Comparative Color Vision, Academic Press, New York. G. (1976) Marine Optics, Elsevier, Amsterdam. P. E. (1988) Utilizing the components of vector irradiance to estimate the scalar irradiance in natural waters. Appl. , 27, 4012-18. , Shigata, A. and Yonemori, T. (1981) Response of teleosts to the plane of polarized light as determined by the heart-beat rate. Bull. Jap. Soc. Scient.

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The Visual System of Fish by Ellis R. Loew, William N. McFarland (auth.), Ron Douglas, Mustafa Djamgoz (eds.)


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