heat energy / food coloring / fish food / blue food coloring / food availability / Sonar systems / Satellite communication systems / physical and chemical parameters / food / energy / /
NaturalFeature
Gulf of Mexico / Deep Sea / Baffin Bay / British Isles / /
Person
William Beebe / John Ross / Jacques Piccard / Auguste Piccard / Edward Forbes / /
Position
renowned zoologist / engineer / /
Region
Antarctic / British Isles / Gulf of Mexico / Mediterranean / /