It is recommended by the USCG that all vessels should be anchored from the bow,{front} and never the rear. In Texas it is illegal to anchor your boat in lakes or creeks and rivers from the rear.
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Sailing yachts have the anchor at the bow of the boat.
A rode roller sailboat anchor pulley is a part that can be replaced on a boat. Some people can find the part on sites such as ebay.
The volume of the displaced water would be less - as you're reducing the mass of the boat. Another viewpoint: I think there's a bit more to this question, but the basic answer remains the same. I think it's all about "Archimedes' Principle". Let's consider the anchor as still part of the boat. Also let's think about it before it gets partly buried in the ground underwater. Archimedes' Principle tells us: The "upthrust" on the boat before the anchor is lowered is equal to the weight of the whole boat. That equals the weight of water displaced. The anchor itself doesn't float in water. It is denser than water. When the anchor is completely submerged it displaces an amount of water equal to the anchor's volume (not the anchor's weight). When the anchor was on the boat it displaced an amount of water equal to its weight. So, when the anchor is lowered, the boat (including anchor) displaces a slightly smaller volume of water.
There are vessels designed to to specifically anchor from the stern of the vessel. However if you mean a "fishing boat" as a small recreational or "pleasure" craft like a bass boat, it is almost NEVER recommended to anchor from the transom of a boat. This is especially true if you have any type of current or sea state (even lake or wind waves) as your stern is the lowest part of the boat to the waterline and swamping can happen fast. I have personally seen it at the mouth of the Columbia River bar located in Pacific Northwest. Not to mention you run the risk of fouling your props with the anchor rode.
The bottom of a car
The waterline is an imaginary line witch a ship or boat floats. The warmer or colder the water the less or more it floats. WIKI --- Waterline
They are both heavier than air, and would accumulate in the lower parts of a boat (the bilges).
Water molecules will transfer heat as they move from the lower part of the bucket to the boat.
Normally, the Bow, the head end ( to borrow the railroad term) of a ship., There were some German warships that had an after anchor station, presumably when riding out storms between assignments. this was quite rare. The German ships had both a forward rudder ( normal position) and the after one at the stern, when (Tied down) storm condition, both were used.