Port Otago staff said the fog caused only minor delays. The tanker Cajun Sun's 11.15am departure was postponed by 55 minutes, but no small vessels were affected.
The subantarctic longliner Janas arrived at its Fryatt St berth in Dunedin on schedule yesterday morning, albeit after a slow trip up the harbour.
Talleys vessel manager Ben Holden was contacted and said Dunedin was Janas' ``second home'', as it was a regular visitor here.
The 46.5m-long Janas, built in 1993, is New Zealand-flagged and its home port is Nelson.
Mr Holden said Janas was ling fishing at present and the vessel and its 22 crew were due to depart tomorrow about 3.30pm, after reprovisioning through Dunedin Shipping Supplies.
Janas was headed back to the subantarctic waters, where it would fish for six to eight weeks, Mr Holden said.
During the summer Janas operates in Antarctic waters, fishing for toothfish, and also undertakes scientific research under licence from the Commission for the Conservation of Antarctic Marine Living Resources, spending up to 10 weeks working in the Ross Sea.
Janas also operates in the Australian subantarctic zone, catching Patagonian toothfish, as well as in New Zealand's ling fishery.
