Over their lifetime, fishing vessels are arguably the most robustly constructed maritime structures around, due to their continuous operation in the most arduous of conditions. Marco Shipyard in Seattle — founded in 1953 — built its business and reputation in the fishing industry, producing boats for operation around the globe. In fact, Peter G. Schmidt, company founder and president, was an innovator in the use of steel construction for the fishing vessel market, which previously consisted mostly of wooden boats. "He wanted to bring small boatbuilding into the modern world," said Bob McMahon, vice president. While the market for building new fishing vessels is a far cry from 10 years ago…