Darganfod ac Archwilio’r Casgliad

Cyfweliad Bywyd ar y Gwastadeddau: Martin...

Cyfweliad Bywyd ar y Gwastadeddau: Martin...

Skate angling off New Quay, 1980's

Perspective on bottlenose dolphin behaviours,...

Bow riding Bottlenose dolphins, 1987/88

Gweld dolffin trwynbwl, 1985

Scallop dredging in Cardigan Bay, 1980's

Bass fishing off New Quay, 1980's

Mackerel fishing off New Quay, 1980's

Celtic Deep Surveys: Porbeagle sharks, 1980's

Pysgodyn clicied mewn cawell, 1984