Rare occurrence of a bigeye tuna Thunnus obesus in British waters, with notes on other occurrences of sub-tropical tunas.

A freshly dead bigeye tuna Thunnus obesus was washed ashore near Burry Port, Wales (51 degrees 40' N; 4 degrees 15' W) in August, 2006. This is only the third occasion that the species has been observed in British waters, and is the largest and most northerly recorded specimen.

Short-term effects of reclamation of part of Seal Sands, Teesmouth, on wintering waders and Shelduck : I. Shorebird diets, invertebrate densities, and the impact of predation on the invertebrates.

The invertebrate macrofauna of Seal Sands, Teesmouth, is very limited in species composition. Nereis diversicolor has a two-year life cycle; the larger size-class provides the main prey of the birds Pluvialis squatarola, Numenius arquata and Limosa lapponica. Hydrobia ulvae is an important food of P.