The shark-tuna dichotomy: why tuna lay tiny eggs but sharks produce large offspring
Abstract
Teleosts such as tunas and billfish lay millions of tiny eggs weighing on the order of 0.001 g, whereas chondrichthyes such as sharks and rays produce a few eggs or live offspring weighing about 2% of adult body mass, as much as 10 000 g in some species. Why are the strategies so extreme, and why are intermediate ones absent? Building on previous work, we show quantitatively how offspring size reflects the relationship between growth and death...
Paper Details
Title
The shark-tuna dichotomy: why tuna lay tiny eggs but sharks produce large offspring
Published Date
Aug 1, 2018
Journal
Volume
5
Issue
8
Pages
180453 - 180453
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