at intervals

In tuna longlining, the ship uses a line made of thick microfilament, sometimes stretching as long as 40 miles, with baited hooks attached at intervals.

Alongside Currumbin, they're trying to save the Elanora koalas from oblivion: capturing 30 youngsters and vaccinating them, before recatching them at intervals over three years to track their health.

And it is still unknown if one Treg treatment will be effective or might need to be repeated at intervals that have yet to be established.

Through 2027, he will return at intervals to the Royal Opera to conduct all four installments of a “Ring” cycle staged by Barrie Kosky.

"At the end of the AHP, we observed at least 14 dry events in the short cores from Chew Bahir, each of which lasted 20-80 years and recurred at intervals of 160±40 years," says Trauth.