Harbour porpoises need large, oily fish

Harbour porpoises eat approximately ten percent of their body weight in fish per day. Their diet mainly comprises gobies, whiting, sand lances, herring and sprats. These mammals are in constant danger of starvation. Other ...

Wave energy impact on harbour operations investigated

Infragravity period oscillations—waves that occur between 25 and 300 seconds with a wavelength between 100m and 10km—can have an impact on berthing operations, depending on a harbour's geometry.

Species conservation poised to benefit from DNA advances

A biologist at the University of York is part of an international team which has shown that advanced DNA sequencing technologies can be used to accurately measure the levels of inbreeding in wild animal populations.

New survey reveals seal numbers in the Thames

An astounding 708 seals have been spotted in the Thames Estuary in the first ever count by air, land and sea, carried out by the Zoological Society of London (ZSL).

Waves and the perception power of seals

If you ever thought that murky waters would stop seals in their (hunting) tracks, think again. Harbour seals (Phoca vitulina) extend their vibration-sensitive whiskers to find food when their vision is obstructed. But can ...

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