V.
VL.
VIT.
VIIl .
I.
TI.
111.
IV.
V.
VI *
VII.
VIII.
CONTENTR
Neoplasia in Some Marine Mammals
A. Sirenia
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C. Cetacen
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B. Pinnipedia . .
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Summary and Conchion
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Acknowledgements
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1 .
Bibliography
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. I
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1 .
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The Biology of Pelagic Shrimps in the Ocean
MAKOTO OMORI
Introduction
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General Features of Pelagic Shrimp8 . .
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Biomass . .
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Vertical Distribution and Beluted Yrobleme . .
A. General Vertical Distribution . .
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B. Diurnal Migration. . .. . . . .
C. Ontogenetic Migration . . .. . .
1). Sonic Scibttering Layer8 . .
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Colour and Bioluminescence
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Shortling . .
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Life History
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A. Spawning . .
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B. Development
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D. Dispersion and Migration
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Food Relationships
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A. Food and Feeding
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C. Growth, Maturity, Longevity and Mortality
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B. Predators . . . . .. . . .. ..
ix
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28.5
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293