1 Ago bay   Japan      
2 Akaroa Harbor   Australia P   1
3 Anil River Estuary   Brazil      
4 Arabian Gulf   Saudi Arabia      
5 Athabasca   Canada      
6 Babitonga Bay   Brazil      
7 Bahia de Yavaros   Mexico      
8 Bahmanshir Estuary   Iran      
9 Bay of Fundy   Canada      
10 Blind Slough Alaska United States      
11 Bow   Canada      
12 Caloosahatchee Florida United States P P 2
13 Cape Fear North Carolina United States      
14 Carron   United Kingdom P P 1
15 Chesapeake Bay Virginia United States      
16 Chileno bay   Mexico      
17 Ci Liwung, Jakarta Bay   Indonesia      
18 Columbia River Oregon United States P P 4
19 Currituck Sound North Carolina United States      
20 Dalian Bay   China      
21 Dalyon Lagoon   Turkey      
22 Dammam Gulf   Saudi Arabia      
23 Eastern harbor   Egypt      
24 Enore   India      
25 Escatawpa Alabama United States P P 1
26 Estuario de Reloncavi   Chile      
27 Galveston Bay Texas United States      
28 Gordon River estuary   Australia      
29 Guadalquivir Estuary   Spain      
30 Halong bay   Vietnam      
31 Jakarta bay   Indonesia      
32 Keehi Lagoon Hawaii United States      
33 Kitanada Bay   Japan      
34 Laguna de sonso   Columbia      
35 Lewis Oregon United States      
36 Lower Columbia Slough Oregon United States P P 9
37 MA Estuaries Massachusetts United States      
38 Matu   Australia P   1
39 Melides Lagoon   Portugal      
40 Mikaya Bay   Japan      
41 Mississippi Sound Mississippi United States      
42 Mobile Bay Alabama United States      
43 Mondego estuary   Portugal      
44 Nakdong Estuary   Korea      
45 Napa River California United States P   2
46 Neuse Estuary North Carolina United States      
47 Nuece River North Carolina United States P P 3
48 Patuxent Maryland United States P P 1
49 Peace   Canada      
50 Pearl Estuary   China      
51 Plum Island Massachusetts United States      
52 Port Aransas Texas United States      
53 Port Curtis   Australia      
54 Potomac Maryland United States P P 1
55 Puyallup River Estuary Washington United States P   1
56 Raritan New Jersey United States P   1
57 Reloncavi estuary   Chile      
58 Saguaçu Lagoon   Italy      
59 Sampit North Carolina United States P P 2
60 San Gabriel River California United States P P 2
61 San Juan estuary   Puerto Rico      
62 Santa Marta Bay   Columbia      
63 Savannah South Carolina United States P P 2
64 Seine   Canada      
65 Sepetiba Bay   Brazil      
66 Siletz Bay/Schooner Creek Oregon United States P   2
67 South Slough Oregon United States P P 2
68 St.Lucie Estuary Florida United States      
69 SW Biscayne Bay Florida United States      
70 Swan River   Australia P   1
71 Tagus estuary   Portugal      
72 Tampa Bay Florida United States      
73 Thames River Connecticut United States P   1
74 Thermalito Afterbay California United States      
75 Tolo Harbor   Hong Kong      
76 Tseng-Wen River Estuary   Taiwan      
77 Tunjuelito   Colombia      
78 Venice lagoon   Italy      
79 Wailai Canal Hawaii United States P P 1
80 Willamette River Oregon United States P P 4
81 Yangtze River   China      
82 Yaquina Oregon United States