Also gets
LvL 3,4,6 Marine Products
LvL 3,4 Shells
LvL 3 cloth

Lisbon:
Eaglewood LvL 6
Cold Iron LvL 6

Also gets
LvL 3,4,6
Marine Products
LvL 3,4 Shells
LVL 4 cloth

Las Palmas:
Eaglewood LvL 6
Cold Iron LvL 6

Also gets
LvL 3,4,6 Marine Products
LvL 3,4 Shells
LVL 3 timber

Cape Town:
Secondary Eaglewood LvL 7
Secondary Cold Iron LvL 7
Eaglewood LvL 10 (?)
Cold Iron LvL 10 (?)

Also gets
LvL 2, 5 Marine Products (and something that can't be caught with the second level Fishingnet)
LvL 4, 7 Shells
Copper

Magadishu:
Secondary Eaglewood LvL7
Secondary Cold Iron LvL 7

Also gets
(that I can remember at this moment) LvL3, 5, 7 Marine Products
LvL 4, 5, 6, 7 Shells
LvL 5 cloth.

Mozambique:
Secondary Eaglewood LvL 7
Secondary Cold Iron LvL 7

Also gets
LvL 3, 5 Marine Products (and something that can't be caught with the second level Fishingnet)
LvL 5, 7 Shells
LvL 5 timber

London:
Eaglewood LvL 8
Cold Iron LvL 8

Also gets
LvL 3 Cod
LvL 4 (Linneas), 7 (Ficus Subimtermedius) Shells
LvL 3 cloth

Oslo: Sells Fishing Net LvL 31
High-level Eaglewood LvL 8
High-level Cold Iron LvL 8

Also gets
LvL 4 (Mackerel), 7 (sturgeon), 8 (Seaweed) Marine Products
LvL 5 (Natica tigrina), 8 (Cymatium sarcostomum) Shell
Brass (LvL 4 metal)

Quanzhou sells Fishingnet LvL 31
Superior Eaglewood LvL 9
Superior Cold Iron LvL 9
eaglewood LvL 10

Also gets
LvL 6 (Ratfish), 8 (Sea Horse), 9 (White fin dolphin) Marine Products
LvL 6 (Chiragra-Spider-Conch), 8 Shells (Flame Horned Helmet)
LvL 7 Cloth

Quest (Repeatable):
Talk to the 'Helpful Physician' and give him 20 baskets of Sea horse.
As reward he will give you 3 Secondary Healing Potions.

Edo: sells Fishingnet LvL 61
Superior EagleWood LvL 9
eaglewood LvL 10
Superior Cold Iron LvL 9

Also gets
LvL 6 (Ratfish), 7 (Squid), 8 (Sea Horse) Marine Products
LvL 6 (Tonna), 9 (Rooster-tail-Conch) Shells
LvL 7 Timber

Nagasaki: sells Fishingnet LvL 61
eaglewood LvL 10

Also gets
LvL 6 (Ratfish), 7 (Squid), 8 (Seahorse) Marine Products
LvL 6 (Chiragra-Spider-Conch), 8 (Flame Horned Helmet)Shells
Pure Silver (LvL7 Metal)

Seoul: sells Fishingnet LvL 61
Superior EagleWood LvL 9
Superior Cold Iron LvL 9
eaglewood LvL 10

Also gets
LvL 6 (Ratfish), 8 (Sea Horse), 9 (White fin dolphin) Marine Products
LvL 6, 8 Shells
LvL 7 cloth

Zhigu:
Superior EagleWood LvL 9
Superior Cold Iron LvL 9
eaglewood LvL 10

LvL 6 (Ratfish), 8 (Sea Horse), 9 (White fin dolphin) Marine Products
LvL 6, 8 Shells
Gold (LvL 8 metal)

Stockholm: Sells LvL 31 Fishing Net
cold iron of the deep sea LvL 10

Also gets
LvL 4 (Herring), 5 (Salmon/Trout), 8 (Seaweed) Marine Products
LvL 3 (Pallid Carrier), 6 (Banded Tun) Shells
LvL 4 Cloth

Quest (Repeatable):
Happy Fisherman NPC (dock), 20 Seaweed; reward 1 Secondary Recovery Potion

Hamburg: Sells LvL 31 Fishing Net
High-level Eaglewood LvL 8
High-level Cold Iron LvL 8
cold iron of deep sea LvL 10

Also gets
LvL 4 (Mackerel), 7 (Sturgeon), 8 (Seaweed) Marine Products
LvL 5 (Natica tigrina), 8 (Cymatium sarcostomum) Shell
LvL 4 Timber

Reykjavik: Sells LvL 31 Fishing Net
High-level Eaglewood LvL 8
High-level Cold Iron LvL 8
cold iron of deep sea LvL 10

Also gets
LvL 4 (Herring), 7 (sturgeon), 8 (Seaweed) Marine Products
LvL 4 (Linneaus), 7 (Ficus subintermedius) Shells
LvL 6 cloth

Other Fishing Places
In no particular order…

Genoa:
LvL 2, 3, 5 Marine Products
LvL 2, 3 Shell

Extra resources: LvL 2 cloth

Algiers:
LvL 2, 3, 5 Marine Products
LvL 2, 3 Shell

Extra resources: Bronze

Barcelona :
LvL 2 (Sardine), 3 (Cod) Marine Products
LvL 2 (Lettered Cone), 3 (Imperial Delphinula) Shell

Extra resources: LvL 3 Timber

Bordeaux: Sells LvL 31 Fishing Net
LvL 4 (Mackerel), 5 (Salmon/trout), 8 (Seaweed) Marine Products
LvL 3 (Pallid Carrier), 6 (Banded Tun) Shells

Extra resources: Brass (LvL 4 metal)

Amsterdam:
LvL 4,5 Marine Products
LvL 3, 6 Shell

Extra resources: Bronze

Madeira: Sells LvL 31 Fishing Net
LvL 1 (Tunny), 2 (Sardine), 5 (Sea Urchin) Marine Products
LvL 3 (Imperial Delphinula) Shells

Extra resources: Bronze

Luanda:
LvL 2, 5 Marine Products (and something that can't be caught with the second level Fishingnet)
LvL 4, 6 Shells

Extra resources: LvL 4 cloth

Dakar:
LvL 2,5 Marine Products
LvL 3,6 Shell

Extra resources: Brass

Accra:
LvL 2, 5 Marine Products (and something that can't be caught with the second level Fishingnet)
LvL 4, 6 Shells

Extra resources: LvL 4 timber

Malacca: sells Fishingnet LvL 31
LvL 3 (Cod), 6 (Eel), 7(Amphipod) Marine Products
LvL 5, 8 Shells

Extra resources: LvL 6 Timber

Bombay: sells Fishingnet LvL 31
LvL 2 (Sardine), 6 (Eel), 7 (Amphipod) Marine Products
LvL 5 (Charonia tritonis), 7 (Dwarf Horned helmet) Shells

Extra resources: LvL 6 Timber

Semarang: sells Fishingnet LvL 31
LvL 3 (Cod), 6 (Eel), 7 (Amphipod) Marine Products
LvL 5 (Cymantium pileare), 8 (Pterynotus aparii) Shells

Extra resource: Green silver (LvL 6)

Tourane: sells Fishingnet LvL 31
LvL 3, 6, 7 Marine Products (Cod, Eel, Amphipod)
LvL 5 (Cymantium pileare), 8 Shells (Flame Horned Helmet)

Extra resources: LvL 6 cloth

Sri Lanka: sells Fishingnet LvL 31
LvL 2 (Sardine), 6 (Eel), 7 (Amphipod) Marine Products
LvL 5 (Charonia tritonis), 8 (Pterynotus aparii) Shells

Extra resources: LvL 6 cloth

Basra:
LvL 2, 5 Marine Products (and more that can't be caught with the second level Fishingnet)
LvL 5, 7 Shells

Extra resources: ? (*, forgot to write down, think it's LvL 5 cloth)

Muscat: Sells LvL 31 Fishing Net
LvL 2 (Sardine), 5 (Salmon/Trout), 8 (Seaweed) Marine Products
LvL 5 (Natica tigrina), 7 (Dwarf Horned Helmet) Shells

Extra resources: LvL 5 cloth

Aden:
LvL 2, 5, 8 Marine Products
LvL 5,7 Shells

Extra resources: LvL 5 timber