What's the difference between trawl and trawlboat?

Trawl

Definition:

(v. t.) To take fish, or other marine animals, with a trawl.
(n.) A fishing line, often extending a mile or more, having many short lines bearing hooks attached to it. It is used for catching cod, halibut, etc.; a boulter.
(n.) A large bag net attached to a beam with iron frames at its ends, and dragged at the bottom of the sea, -- used in fishing, and in gathering forms of marine life from the sea bottom.

Example Sentences:

(1) The curators Pickering and Kaus have painstakingly trawled through the records that may accompany bones for clues.
(2) Trawling through the private telephone conversations of royals, politicians and celebrities in the hope of picking up scandalous gossip is not seen as legitimate news gathering and the techniques of entrapment which led to the recent Pakistani match-fixing scandal , although grudgingly admired in this particular case, are derided as manufacturing the news.
(3) News International has carried out a huge trawl of emails sent internally and externally, resulting in a number of arrests in police investigations.
(4) In southern California, FBI informant Craig Monteilh trawled mosques posing as a Muslim and tried to act as a magnet for potential radicals.
(5) It followed the Guardian's revelations about GCHQ's data-trawling techniques which were detailed in papers leaked by the whistleblower Edward Snowden.
(6) Detectives are still trawling through 9,200 pages of mainly handwritten material seized from Mulcaire, who was convicted of intercepting voicemail messages in January 2007, along with the News of the World journalist Clive Goodman.
(7) Chaired by Lord Grabiner and reporting to senior News Corp executives in New York, the MSC is trawling through 300m internal emails and passing on information about suspected illegal activity by journalists to Scotland Yard.
(8) Cameron disclosed that he will be consulting former Labour cabinet ministers on the release of the papers, adding that he had asked the cabinet secretary, Sir Gus O'Donnell, to trawl through all the papers to see what else should be published.
(9) HMRC obtained this data in 2010 and appointed a team of more than 300 tax officials to trawl through the evidence.
(10) Led by Commander Steve Rodhouse, Operation Connect is trawling the Scotland Yard intelligence bank, and information from local authorities, schools and health authorites, to produce a centralised database of the most harmful gang members.
(11) A cursory trawl reveals a long list of employment tribunals and strikes by low-paid workers in these outsourcing companies.
(12) However, the Whale and Dolphin Conservation Society said electronic pingers could already be used under current EU nature laws, which also protect porpoises from trawling, dredging, pile driving and noise from military sonars.
(13) As they continued to trawl through water and rubble for the missing, on Monday police said they had reduced the number of people believed to have died in the Utøya massacre from 86 to 68 – the vast majority of them teenagers taking part in a leftwing political summer camp.
(14) In fact, Hussain worked for the FBI as an informant trawling mosques in hope of picking up radicals.
(15) The trawl for fresh talent is the first undertaken by Red Planet, a production company he launched last year backed by his long-time partners at Kudos.
(16) I really hope there's a snowball effect from that," said Glover, who was signed up to the Sporting Giants programme trawling for talent in rowing, handball and volleyball in 2008.
(17) His computer has been impounded as part of the paper's internal investigation and the company is trawling through his emails.
(18) Advising Mann on how to avoid a security breach involving sensitive data that was left unprotected on an ftp server Jones wrote: " Don't leave stuff lying around on ftp sites – you never know who is trawling them. "
(19) On the one hand, he notes, Metronomy played some US arena gigs supporting Coldplay, which came as something of a surprise, given that Mount had publicly expressed his dislike of Coldplay's music ("I think we have to appreciate that Chris and the boys, they've got bigger fish to fry than trawling through our old interviews," he says now), but nevertheless gave Mount an opportunity to watch one of the biggest bands in the world up close.
(20) Today the collateral damage of the trawling industry is processed and sold to the fast-growing poultry and aquaculture industries of the region 6 .