Ultima Online Fishing - the skill thresholds, magic fish, SOS bottles, and the deep water argument

The basic loop, and why you keep moving

You use a fishing pole on water. The one rule that shapes every session is that fishing spots are exhaustible: per uo.com, “Fishing spots run out and you will get the message ‘the fish are not biting here’”. A fisher who stands still stops catching, so the loop is cast, cast, move.

uo.com’s practical progression is shore fishing at 50 — it recommends Magincia — then working along docks into progressively deeper water as skill rises, and it notes a crystal ball of knowledge helps you tell whether you are positioned correctly.

The threshold ladder

uo.com publishes one ladder; a second set of thresholds is unpublished, so the two are kept apart rather than merged. From uo.com:

Skill	What changes
50	Shore fishing
75	Ready for deep water and boats; deep water requires 14+ tiles from land
80	White Pearls, Delicate Scales and magic fish begin; sea serpents appear
~80	Normal fish phase out; High Seas fish take over

Not published by uo.com:

Skill	What changes
70.1 [!]	Sunken Treasure
75 [!]	Message in a Bottle
80 [!]	Special Fishing Net
85.0 [!]	Skill gains only possible in deep water
95.1 [!]	Crystal Ball reports only “Easy” difficulty

80 is the real dividing line. Four separate things start or stop there — magic fish, white pearls and delicate scales, sea serpents, special fishing nets — and the ordinary fish you have been catching stop appearing.

Deep water: uo.com’s rule and an unpublished one

This is the one live argument on the skill, and it is worth knowing which claim you are reading.

• uo.com ties deep water to skill 75 and a fixed distance: a minimum of 14 tiles from land is required for water to count as deep water at skill 75 and above.
• Unpublished: skill gains after 85.0 [!] are only possible in deep water, and the distance required grows by about one step further from land every 5 [!] skill points.

These are not the same claim. One is about where you can usefully fish and what counts as deep; the other is about where you can still gain skill, and it describes a moving distance rather than a fixed 14 tiles. uo.com does not reconcile them. uo.com’s fixed 14 tiles is the published rule; the 85.0 gains rule and its rising distance are not settled.

What you actually catch

• Footwear — abundant at low skill. uo.com’s own suggestions for the pile are selling it to cobblers or feeding it to tame goats, which is a small cross-reference to Animal Taming.
• Normal fish — yield 4 fish steaks when cut with a knife, and are caught regularly until around 80 skill, after which they phase out.
• High Seas fish — a greater variety with the High Seas booster, increasing in frequency as skill rises and replacing normal fish around 80. It introduced 42 [!] regular new fish types, requiring the booster pack, plus Professional Fisher Quests and new monster spawns.
• White Pearls and Delicate Scales — from 80 skill. Delicate Scales turn up about twice as often [!] as white pearls.

Magic fish, from 80 skill

Four of them, with the effects quoted from uo.com:

Fish	Effect
Prized Fish	+8–12% Intelligence for 150 seconds
Wondrous Fish	+8–12% Dexterity for 150 seconds
Truly Rare Fish	+8–12% Strength for 150 seconds
Highly Peculiar Fish	+10 points stamina

These are temporary consumable effects and are unrelated to Fishing’s own primary and secondary stat gain. Anyone who obtains the fish can eat it; the skill is what produces them, not what benefits from them.

Big fish and trophies

Big fish are found only in deep water and come up at random weight. Per uo.com, a big fish displays its weight and the fisherman’s name if it exceeds 20 stones, and it can be preserved with a Taxidermy Kit as a trophy.

The extremes at both ends of the range are the closest thing the skill has to a leaderboard, and both are unpublished: the lightest big fish weighed 1 stone [!], and the heaviest 225 stones [!].

SOS bottles, nets, and sea serpent loot

This is where Fishing stops being a gathering skill and starts producing content.

• Message in a Bottle — the MiB requires 75% [!] fishing skill. Opened, it becomes a Waterstained SOS, or, with luck, an Ancient SOS — roughly 1 in 25 [!] do.
• Sunken Treasure — requires 70.1% [!] skill. Ancient Sunken Treasure uses an Ancient SOS.
• Special fishing nets — the requirement is 80% [!]. Per uo.com, a net summons waves of “3 or 4 nasty monsters consisting of water elementals, sea serpents, deep sea serpents, or kraken”. Nets come in several colours, of which green is the functional one and the rest are decorative; they come as sea serpent loot or from fished treasure chests.
• Sea serpent loot — per uo.com: soggy parchment, which becomes treasure maps for Cartography to decode; special fishing nets; and messages in bottles. Sea serpents are encountered at 80+ skill in deep water.

Note the loop that closes there: serpents give nets and parchment, nets summon serpents, parchment becomes maps. Past 80 the skill feeds itself.

In PvP

[!] uo.com states no direct PvP application for Fishing. That is the honest position and nothing here dresses it up.

The nearest adjacent fact is the magic fish. Their published effects — +8–12% to a stat for 150 seconds, or +10 stamina — are real, and are available to any character who obtains the fish, from a fisher or otherwise. But [!] uo.com does not frame them as a PvP mechanic, and nothing further is claimed here.

In PvM

• The skill generates its own fights. A special fishing net spawns “3 or 4 nasty monsters consisting of water elementals, sea serpents, deep sea serpents, or kraken” — you do not go looking for that content, you manufacture it.
• Sea serpents from 80 in deep water, which is also where their loot comes from.
• SOS and Ancient SOS recoveries are the main treasure loop the skill feeds, with Sunken Treasure from 70.1 [!] and MiBs from 75 [!].
• Treasure maps from soggy parchment, handed over to Cartography.
• High Seas adds further monster spawns on top of all of it.

Skills it works with

• Cooking — uo.com says it plainly: “Cooking is also a skill worth considering, especially if you have the high seas expansion”, for fish pies. Fish are cut into steaks and cooked.
• Cartography — soggy parchment from sea serpents becomes treasure maps, and Cartography is what decodes them.
• Imbuing — not a fishing mechanic, but worth knowing for the cap: uo.com lists Fishing and Imbuing quests as a source of Power Scrolls alongside champion spawns.
• Animal Taming — minor, and uo.com’s own suggestion: feed the surplus footwear to tame goats.

[!] No mechanical interaction is published between Fishing and Tailoring, Carpentry or Tinkering. Those crafts are often associated with fishing gear and boats, but the uo.com Fishing page does not state a link.

Caps, stats and training

Fishing is on the Power Scroll list: 105 / 110 / 115 / 120 with a Wondrous, Exalted, Mythical or Legendary scroll, counting against the 720 total skill cap. Primary stat Dex, secondary Str. Fishing is not one of the skills with a Skill Mastery. It is also one of the few skills whose own quests are a published source of Power Scrolls.

The one volume benchmark is unpublished, and it is a sobering one: expect to catch around 3,800 fish [!] to go from 50 to 100. Also unpublished is 85.0 [!] as the point after which gains require deep water, with the distance from land rising every 5 skill points — see the deep-water section above before planning around that.

uo.com’s practical path is the simpler one: shore fishing at 50 with Magincia recommended, moving along docks into deeper water as skill rises, and boats and deep water from 75.

NPC trainers: Fisher, Fisher Guildmaster and wandering Healer. The Guaranteed Gain System backstops the grind with a mandatory 0.1 when nothing has been gained inside your bracket’s window, and a Scroll of Alacrity raises each check from 0.1 to 0.2–0.5 for 15 minutes.

What is not published

• [!] A one-line official description of the skill — uo.com’s Fishing page simply does not have one.
• [!] Any direct PvP application.
• [!] Any mechanical interaction with Tailoring, Carpentry or Tinkering.
• [!] A reconciliation of the two deep-water rules — uo.com’s fixed 14 tiles at skill 75 against the unpublished gains-only-after-85.0 rule with a distance that rises every 5 skill points.

Where these come from

uo.com Fishing · uo.com Scrolls of Power · uo.com Skill Masteries · uo.com Skills, Stats & Attributes · uo.com Skill Gain Systems. Everything here is from uo.com or the game itself; anything uo.com does not publish is marked [!] as unpublished where it appears.