Krill off Bouvetöya and in the southern Weddell Sea with a description of larval stages ofEuphausia crystallorophias

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Abstract
In the austral summer 1978/79 samples of krill were taken off Bouvetöya and in the southern Weddell Sea. Off Bouvetöya Euphausia superba Dana was the dominant species, but the population pattern indicates that the individuals found there were expatriates from other areas. For the first time larvae of E. superba were found in significant amounts in the southern Weddell Sea. Except from shallow water and the most southern position, they were equal in abundance to the larvae of E. crystallorophias Holt & Tattersall. Larval stages of the latter are described as is the successive spawning that takes place among the three species of krill found in the southern Weddell Sea.