While other Islanders are out trick-or-treating or putting finishing touches on their costumes, the Martha’s Vineyard Regional High School varsity football team will be spending Halloween on the field under the lights tonight when they play Cape Cod Tech at home in what is easily their most important game so far this season.

An architect from Connecticut and a mailman from Westport were the top winners in this year’s 63rd annual Martha’s Vineyard Striped Bass and Bluefish Derby.

On Sunday, Paul C. Harris of Oak Bluffs and Weston, Conn., won a new black Chevrolet 4x4 pickup truck for a 10.75-pound bonito he caught while fishing with friends earlier this month.

Scott D. Tompkins of Westport won a 20-foot center console Eastern powerboat for a 40.12-pound striped bass he caught fishing alone on an Up-Island shore in the early evening of Oct. 1.

Fewer fishermen and fewer fish — that has been the main theme for the 63rd annual Martha’s Vineyard Striped Bass and Bluefish Derby this year. The fall premiere saltwater fishing contest has been affected this year both by the economy and the state of fish stocks. Participation is down.

The tournament that began in mid-September ends tomorrow night at 10 p.m. with the last weigh-in. As of Wednesday morning there were 2,674 fishermen registered in the contest, significantly down from last year’s 3,042 participants.