(Updates at market close)

* TSX ends down 0.1% at 31,934.94

* Index was on track for a monthly decline of 7%

* Technology sector declines 1.4%

* Air Canada ( ACDVF ) falls 2.2% as company says CEO will retire

By Fergal Smith

March 30 (Reuters) - Canada's resource-heavy main stock

index edged lower on Monday, including declines for technology

shares, as a widening of the Iran war and the approach of

month-end deterred investors from making any big moves.

The Toronto Stock Exchange's S&P/TSX Composite Index

ended down 25.71 points, or 0.1%, at 31,934.94. The

index has fallen 7% since the start of March, putting it on

track for its first monthly decline in 11 months and its biggest

since June 2022.

"We are wrapping up a tricky quarter and an uglier month,

and I think people just want to get through this right now and

see what the spring will bring," said Greg Taylor, chief

investment officer at PenderFund Capital Management. "There is

so much macro uncertainty right now I don't think anyone has any

conviction to make big bets right now either way."

U.S. stocks also fell, with investors focused on how oil prices

will impact the global economy after they shot up since the

start of the war.

Technology was the biggest drag on the Toronto market,

losing 1.4%.

The materials group, which includes metal mining

shares, ended 0.3% lower. The price of gold rose but was headed

for a sharp monthly decline.

Energy fell 0.5% even as the price of oil

settled 3.25% higher at $102.88 a barrel.

Air Canada ( ACDVF ) CEO Michael Rousseau will retire by

October, the airline said, after he sparked a backlash for

failing to offer condolences in French, one of Canada's two

official languages, over a crash that killed two pilots. Shares

of Air Canada ( ACDVF ) lost 2.2%.

Among the sectors that notched gains was consumer

discretionary. It added 0.9%, while the high-dividend paying

utilities sector was up 0.6% as bond yields fell.