A colony of the rare hydrozoan siphonophore Lilyopsis Chun, 1885, was observed for first time in shallow water False Bay, South Africa, swimming amongst kelp. study a high-quality image this individual found it to share some characters with prayine prayid L. fluoracantha Haddock, Dunn & Pugh, 2005, so far known only from Monterey California, eastern Pacific. No species has previously been r...

The intense harvesting of a fish stock can be accompanied by changes in certain life history traits of that stock. For example, after heavy exploitation, Atlantic cod (Gadus morhua) in the northwestern Atlantic and haddock (Melanogrammus aeglefinus) on the Scotian Shelf matured at smaller sizes and younger ages (Olsen et al., 2004, 2005; Neuheimer and Taggart, 2010). Because earlier maturing in...

The law of one price (hereafter LoP) is one of the most basic laws of economics and yet it is a law observed in the breach. That a given commodity can have only one price, except for the briefest of disequilbrium transitions, seems to be almost an axiom. Economists are bent on considering their subject to be empirically based, yet the most elementary of laws seems to defy empirical confirmation...