Reproduction and Larval Development in Antarctic Krill (Euphausia superba)

Abstract

An understanding of the reproduction and larval development of Antarctic krill is important since reproductive output is a key factor influencing their overall population size. Seasonal cycles of maturity in krill are known to be finely synchronized with seasonal cycles of food, sea-ice and the light regime in the Antarctic environment. This chapter will describe the progression of Antarctic krill development throughout their life cycle, including their maturation process, fecundity, spawning, and larval development, in relation to various environmental factors that are thought to govern these processes. The chapter will close with some remarks on possible effects of climate change on krill life history.