Title: Fishing sinker
Content:  A Deep Drop Weight is used to reach the bottom in deeper offshore fishing applications. These fishing weights are typically cylindrical in with a brass eyelet at the top for attaching to a rig. Weights for this style of sinker range from one pound to as much as fourteen pounds. Target species include Tilefish, Grouper, and Swordfish, among others.
Title: Recreational boat fishing
Content:  Offshore boat fishing, sometimes called deep sea or open water fishing, is fishing in deep water (more than 30 metres) and at some distance from land. It is dangerous compared to shallow water or lake fishing. More knowledge is needed about weather patterns, navigation and safety precautions, and this is not an activity for beginners. Offshore boats are generally much larger than inshore boats, and may need to be moored in a marina. They are sturdily constructed so they can brave the weather and water conditions encountered in open waters. Though they differ in design and purpose and prices vary widely they are generally expensive to build 
Title: History of fishing
Content:  buss, they were wide-beamed and bluff-bowed, but considerably smaller, about 15 metres long, a maximum beam of 4.5 metres, a draught of 1.5 metres, and displacing about 13 tonnes. They could carry a tonne of bait, three tonnes of salt, half a tonne each of food and firewood for the crew, and return with six tonnes of fish. Decked areas forward and aft probably provided accommodation, storage and a cooking area. An anchor would have allowed extended periods fishing in the same spot, in waters up to 18 metres deep. The dogger would also have carried a small open boat for maintaining lines and rowing 
Title: Fishing
Content:   A fishing vessel is a boat or ship used to catch fish in the sea, or on a lake or river. Many different kinds of vessels are used in commercial, artisanal and recreational fishing. According to the FAO, in 2004 there were four million commercial fishing vessels. About 1.3 million of these are decked vessels with enclosed areas. Nearly all of these decked vessels are mechanised, and 40,000 of them are over 100 tons. At the other extreme, two-thirds (1.8 million) of the undecked boats are traditional craft of various types, powered only by sail and oars. These boats are used by artisan fishers. It is difficult to estimate how many recreational fishing boats there are, although the number is high. 
Title: The End of the Line (book)
Content:  such as the Global Positioning System are used near the surface of the water and sonar with advanced echolocation are used under the water. Boats have improved engines, nets, and lines. Computers can plot fish underwater, specify its quantity, and map it with a three-dimensional image. Deep sea fishing is becoming more accessible with technological advances and more attractive as global fish stocks decline. Most commercial fish come from the shallow seas of the continental shelves or the surface water of the open oceans. Deep sea fishing involves fishing below 1,000 feet. Deep sea regulation inside each country's 200 mile limit 
Title: Billfish
Content:  Billfish are among the most coveted of big gamefish, and major recreational fisheries cater to the demand. In North America, "the apex of the salt water pursuits is billfishing, the quest for elusive blue marlin and sailfish in the deep blue water about 60 miles out." A lot of resources are committed to the activity, particularly in the construction of private and charter billfishing boats to participate in the billfishing tournament circuit. These are expensive purpose-built offshore vessels with powerfully driven deep sea hulls. They are often built to luxury standards and equipped with many technologies to ease the life of the deep sea recreational fisherman, including outriggers, flying bridges and fighting chairs, and state of the art fishfinders and navigation electronics. The boats cruise along the edge of the continental shelf where billfish can be found down 
Title: Spearfishing
Content:  Boats, ships, kayaks, or even jetski can be used to access offshore reefs or ocean structure. Man-made structures such as oil rigs and Fish Aggregating Devices (FADs) are also fished. Sometimes a boat is necessary to access a location that is close to shore, but inaccessible by land. Methods and gear used for boat diving are similar to shore diving or blue water hunting, depending on the target prey. Boat diving is practiced worldwide. Hot spots include Mozambique, the Three Kings islands of New Zealand (yellowtail), Gulf of Mexico oil rigs (cobia, grouper) and the Great Barrier Reef (wahoo, dogtooth tuna). The deepwater fishing grounds off Cape Point, (Cape Town, South Africa) have become popular with trophy hunting, freediving spearfishers in search of Yellowfin Tuna.
Title: Fishing vessel
Content:   A fishing vessel is a boat or ship used to catch fish in the sea, or on a lake or river. Many different kinds of vessels are used in commercial, artisanal and recreational fishing. The total number of fishing vessels in the world in 2016 was estimated to be about 4.6 million, unchanged from 2014. The fleet in Asia was the largest, consisting of 3.5 million vessels, accounting for 75 percent of the global fleet. In Africa and North America the estimated number of vessels declined from 2014 by just over 30,000 and by nearly 5,000, respectively. For Asia, Latin America and the Caribbean and Oceania the numbers 
Title: Swordfish
Content:  Recreational fishing has developed a subspecialty called swordfishing. Because of a ban on long-lining along many parts of seashore, swordfish populations are showing signs of recovery from the overfishing caused by long-lining along the coast. Various ways are used to fish for swordfish, but the most common method is deep-drop fishing, since swordfish spend most daylight hours very deep, in the deep scattering layer. The boat is allowed to drift to present a more natural bait. Swordfishing requires strong fishing rods and reels, as swordfish can become quite large, and it is not uncommon to use 5 lb or more of weight to get the baits deep enough during the day, up to 1500 ft is common. Night fishing baits are usually fished much shallower, often less than 90 m. Standard baits are whole mackerel, herring, mullet, bonito, or squid; one can also use live bait. Imitation squids and other imitation fish lures can also be used, and specialized lures made specifically for swordfishing often have battery-powered or glow lights. Even baits are typically presented using glow sticks or specialized deepwater-proof battery operated lights.
Title: Fishing float
Content:   A fishing float (or bobber in the US) is an item of angling equipment. Usually attached to a fishing line, it can serve several purposes. Firstly, it can suspend the bait at a predetermined depth; secondly, due to its buoyancy, it can carry the baited hook to otherwise inaccessible areas of water by allowing the float to drift in the prevailing current; and thirdly, a float also serves as a visual bite indicator. Fishing with a float is sometimes called float fishing.

Question: deep water fishing boat with many baited hooks?
Answer: Longline fishing.
Longliners.
Longline.