What lobster pots are and why they work

A lobster pot (also called a lobster trap) is a wooden or wire cage designed to catch lobsters and other crustaceans by luring them inside through a one-way funnel. The pot sits on the seafloor, tethered to a buoy on the surface so you can locate and haul it. Lobsters enter through the funnel chasing bait, then cannot find their way back out — the design relies on the lobster's behavior, not on speed or force.

Lobster pots work because they're passive. You set them, leave them, and return hours or days later to check what's inside. This makes them far more practical than hand lines for commercial and recreational fishing in the same waters. A single fisher can maintain dozens of pots across a fishing ground, checking them on a regular schedule. The pots also reduce bycatch compared to nets, since most fish and non-target species can escape through the gaps in the cage.

Key Takeaways

  • Lobster pots are wire or wooden cages with funnels that trap lobsters but allow most other creatures to escape, making them selective and low-effort to fish.
  • Regulations on pot size, construction, buoy markings, and the number you can fish vary by state and province, so check your local rules before building or buying.
  • Wire pots are lighter and easier to haul than wooden ones, but wooden pots are traditional, more durable in rough water, and often required in certain fisheries.
  • Bait degrades quickly in warm water and attracts unwanted species, so you'll need to rebait every few days and manage what enters your pots.
  • Hauling pots by hand is physically demanding; many recreational fishers use small electric winches or work in pairs to make the work manageable.

Pot construction: wire versus wooden

Most modern recreational and commercial pots are built from wire mesh over a steel frame. Wire pots are lighter (typically 30 to 50 pounds empty), easier to haul by hand, and faster to repair. They dry quickly and don't absorb water, which matters if you're storing them on a boat or dock. Wire pots also allow better visibility — you can see inside to check if a lobster is there before hauling all the way up.

Wooden pots, traditionally made from oak or spruce slats lashed together, are heavier (60 to 100 pounds) but tougher in rough seas and rocky bottoms. The wood flexes slightly when hauled, reducing stress on the frame and buoy line. Many commercial fisheries in Maine and Nova Scotia still require wooden pots or accept only wooden construction for certain grounds. If you're fishing in a traditional lobster region, check whether the local fleet uses wood — it often signals that conditions favor it.

Standard pot dimensions are roughly 3 feet long by 2 feet wide by 2 feet tall, though regulations specify minimums and maximums by region. Smaller pots (sometimes called "parlor pots") are used inside larger ones to funnel lobsters into a holding chamber, reducing escape and injury. Your state or provincial fisheries office publishes exact specifications; building or buying a pot that doesn't meet them can result in confiscation.

Buoys, lines, and legal markings

Each pot must be tethered to a buoy on the surface so you can find and haul it. The buoy is connected to the pot with a line (usually rope or synthetic cord) long enough to reach the seafloor plus extra for tide and wave action. In 60 feet of water, you'll need at least 80 to 100 feet of line to account for tide range and slack.

Every state and province requires buoys to be marked with your name, license number, or vessel registration in a specific color and format. Maine requires buoys painted in the fisher's personal color scheme and marked with their license number. Massachusetts uses a different system. Nova Scotia has its own marking rules. These aren't suggestions — an unmarked or incorrectly marked buoy can be cut free or confiscated by enforcement officers, and you lose the pot and the catch inside.

Buoy line is often the first thing to fail. It chafes against rocks, gets tangled in propellers, and degrades in sunlight. Many fishers use synthetic line (polypropylene or nylon) because it's cheaper to replace than natural rope and resists rot. However, synthetic line floats, which can tangle in boat propellers — some fishers prefer sinking line for this reason. The choice depends on your local conditions and what other fishers in your area use.

Bait selection and management

Lobsters are scavengers and will enter a pot for almost any dead fish or meat. Herring is the standard bait in most North American fisheries because it's abundant, affordable, and breaks down at a predictable rate. Mackerel is also common and slightly more durable in warm water. Some fishers use squid, which lasts longer but costs more, or sea urchin in certain regions where it's available and legal.

Bait degrades quickly, especially in summer. In warm water (above 60°F), herring becomes mushy and loses scent within 2 to 3 days. In cold water (below 45°F), it can last 5 to 7 days. You'll need to rebait every few days during the fishing season, which means carrying fresh bait to your pots or making frequent trips to shore. Some fishers use bait bags — mesh pouches that hold bait and hang inside the pot, making it easier to replace without opening the trap.

Bait also attracts unwanted species. Crabs, sea stars, and small fish will enter pots and consume or damage the bait, reducing the scent that attracts lobsters. In some regions, regulations require you to remove and release certain species immediately. Check your local rules on what you must release and what you can keep.

Regulations and licensing by region

Lobster fishing is regulated at the state and provincial level, and rules vary significantly. Maine requires a commercial or recreational license, limits the number of pots you can fish (typically 5 to 10 for recreational use), and specifies exact pot dimensions and buoy markings. Massachusetts has similar limits but different pot specifications. New Hampshire allows recreational lobster fishing but with strict pot limits and seasonal closures.

In Canada, Nova Scotia and New Brunswick manage lobster fisheries through a licensing system that varies by zone. Some zones are open to recreational fishing with a license; others are reserved for commercial license holders. Prince Edward Island has its own rules. The number of pots, seasons, and legal size of lobsters all differ by location.

Before you set a single pot, contact your state or provincial fisheries office and request the current regulations for your area. Rules change year to year, and fishing without a license or exceeding pot limits can result in fines and confiscation of gear. Many offices publish free guides online or by mail.

Hauling and handling the catch

Hauling a pot by hand is physically demanding. A 50-pound wire pot filled with water and a lobster can weigh 80 to 100 pounds when you pull it from 60 feet of water. Commercial fishers use hydraulic winches mounted on their boats. Recreational fishers often use small electric winches (12-volt models powered by a boat battery) or work in pairs, with one person hauling while the other manages the line and buoy.

Once the pot breaks the surface, secure the buoy line to a cleat or rail so the pot doesn't drop back. Open the pot carefully — lobsters can pinch, and the pot may be full of water. Remove the lobster and measure it. In most regions, you must return any lobster smaller than the legal minimum (usually 3.25 inches carapace length) and any that is "berried" (carrying eggs). Some areas also have a maximum size limit.

After removing the catch, check the bait. If it's mostly gone or decomposed, replace it. Rinse the pot if it's clogged with sediment or debris, then reset it in the same spot or move it to a new location. Many fishers keep detailed notes on which pots produce and which don't, adjusting placement based on catch patterns over weeks and months.

Seasonal timing and water temperature

Lobster fishing seasons vary by region and are often split into spring and fall periods when water temperatures are moderate (50°F to 60°F). In summer, when water warms above 65°F, lobsters become less active and may move to deeper, cooler water. Bait also degrades faster, requiring more frequent rebaiting. Some recreational fisheries close entirely during summer.

In winter, when water drops below 40°F, lobsters slow down and eat less frequently. Pots may sit for days without a catch. However, winter fishing can be productive in some areas because fewer recreational fishers are active, meaning less competition for the same lobsters. Check your local season dates — they're published by your fisheries office and often differ between nearby states or provinces.

Common problems and how to avoid them

Pots get tangled in fishing lines, propellers, and anchors. Mark your buoys clearly and fish in areas where other boats know to watch for them. In busy harbors, talk to other fishers about where they're setting pots so you don't overlap.

Buoy lines break or get cut. Carry spare line and buoys, and inspect your gear weekly. Replace any line showing signs of fraying or discoloration. Some fishers use breakaway buoys that detach if a line gets snagged, allowing the pot to sit on the bottom until you can recover it later.

Pots fill with sediment or get colonized by sea stars and crabs that eat the bait. Hauling and rinsing regularly helps. Some fishers move pots every week or two to new spots, which also helps you learn which areas hold more lobsters.

Frequently Asked Questions

Can I make my own lobster pot?

Yes, if it meets your region's specifications for size, construction, and materials. Many recreational fishers build wire pots from plans available online or from local fishing supply shops. Check your fisheries office for exact dimensions and requirements before you start — a homemade pot that doesn't meet specs can be confiscated.

How deep can I fish lobster pots?

Lobsters live from the shore to several hundred feet deep, but most recreational fishing happens in 20 to 100 feet of water. Deeper water requires longer, heavier lines and more powerful hauling equipment. Start in shallower areas (20 to 40 feet) where you can haul by hand and see the bottom to choose good placement.

What do I do if I catch a lobster that's too small?

Return it to the water immediately and unharmed. Most regulations require you to measure the carapace (the hard shell on the head and body) and release any lobster below the legal minimum, usually 3.25 inches. Measure carefully — even a quarter-inch below the limit means release.

How often do I need to check my pots?

Most regulations require you to check pots at least once every 24 to 48 hours during the season. Frequent checking also keeps bait fresh and reduces the chance of lobsters escaping or being damaged by crabs inside the pot. Many recreational fishers check daily or every other day.

Do I need a boat to fish lobster pots?

Yes, you need a way to reach the pots and haul them. Most recreational fishers use small boats (16 to 25 feet) that can handle the weight and the work. Some shore-based fishers set pots in shallow water near docks or jetties and haul them by hand, but this limits where you can fish and how many pots you can manage.