Cape Gannet Welfare: Sardine Run Forage Fish Decline in South Africa

Cape gannets depend on sardines and anchovies off South Africa's coast, with overfishing of these small pelagic fish causing breeding failure, starvation, and population decline in this colonial seabird.

Key Facts

Cape gannets are endemic to Southern Africa with key breeding colonies at Bird Island, Lambert's Bay, and Malgas Island
The species is classified as Endangered with populations declining due to prey fish depletion
Sardine stocks have declined dramatically in South African waters linked to overfishing and climate shifts
Gannets that cannot find prey close to breeding colonies face an impossible trade-off between foraging and chick provisioning

Welfare Considerations

Breeding adults that cannot find adequate prey return to colonies unable to provision chicks, leading to chick starvation. Adults abandon chicks mid-rearing if fish availability collapses, leaving chicks to die from starvation and exposure. Gannets entangled in fishing line or netting suffer wing and leg injuries requiring rehabilitation. Oil pollution from fishing vessels affects Cape gannet foraging areas, causing feather waterproofing loss and hypothermia. Colony disturbance from tourism vessels causes unnecessary flushing stress during the critical chick-rearing period.

What You Can Do

Support SAAMBR and BirdLife South Africa advocacy for small pelagic fish conservation
Advocate for forage fish protection policies that maintain ecosystem prey availability for seabirds
Donate to SANCCOB seabird rehabilitation and gannet colony monitoring programmes
Raise awareness that sardine and anchovy stocks are the foundation of Southern African marine ecosystems