Passenger ship (Cruise Passenger ship) · Bahamas flag · built 2001
SEVEN SEAS MARINER: CO₂ emissions 2018–2025
IMO 9210139 MMSI 311622000EU ETS5 reporting years
- CO₂ reported 2025
- 17,525 t
- Fuel burned
- 5,519 t
- Time at sea
- 1,782 h
- Emitted at berth
- 20% of total
- Share of year under way
- 20%
- Gross tonnage
- 48,075
SEVEN SEAS MARINER against its type
Built in 2001, it is 9 years older than the median cruise ship on this register, which was built in 2010 (195 vessels with a known build year). At 48,075 gross tonnage it is smaller than 69% of the other 177 cruise ships with a recorded tonnage. It is one of 67 cruise ships here under the Bahamas flag, 33.2% of the 202 on the register. The same builder is recorded for 51 other vessels here, 35 of them cruise ships. Regent Seven Seas Cruises is linked to 6 vessels on this register. The returns for 2018–2025 all give Nassau as port of registry.
Its 17,525 t of CO₂ for 2025 is 44% below the median of 31,269 t among the 200 cruise ships on this register that reported for 2025. Per nautical mile it emitted 728.9 kg CO₂, 11% below the type median of 821.3 kg. It logged 1,782 hours at sea against a median of 3,133 hours for its type that year. 19.8% of its 2025 emissions were at berth; the median for cruise ships was 15.1%. Across 5 years with reported emissions, the highest was 2024 (23,287 t) and the lowest 2022 (88 t). Of the 8 sister ships listed below with a 2025 return, 7 reported a lower CO₂ per nautical mile than this vessel.
Emissions by year2018–2025
| Year | CO₂ (t) | Fuel (t) | Distance (nm) | At sea (h) | At berth (t) | kg CO₂/nm | EEOI | Percentile |
|---|---|---|---|---|---|---|---|---|
| 2025 | 17,525 | 5,519 | — | 1,782 | 3,475 | 728.9 | — | — |
| 2024 | 23,287 | 7,286 | — | 2,483 | 3,504 | 673.9 | — | — |
| 2023 | 19,086 | 5,953 | — | 1,895 | 2,928 | 678.7 | — | — |
| 2022 | 88 | 28 | — | 14 | 0 | 452.5 | — | — |
| 2018 | 5,765 | 1,843 | — | 436 | 1,411 | 856.9 | — | — |
Vessel particulars
- IMO number
- 9210139
- MMSI
- 311622000
- Gross tonnage
- 48,075
- Length overall
- 216.0 m
- Beam
- 32.0 m
- Year built
- 2001
- Flag state
- Bahamas per EU MRV 2025
- Builder
- Chantiers de l'Atlantique
- Port of registry
- Nassau MRV 2025
- Technical efficiency (design)
- EEXI (13.4 gCO₂/t·nm)
- Verifier
- DNV, Germany
- Accreditation
- VS-16026-01
- Compliance document issued
- 2026-03-02
- Compliance document expires
- 2027-06-30
Reported CO₂ by year
Reported CO₂ in 2025 was 204.0% higher than in 2018, for EU/EEA voyages only. No return is recorded for 2019, 2020, 2021, so the series has gaps.
From 2024 to 2025, emissions fell 24.7% and CO₂ per nautical mile rose 8.2%.Distance is missing for at least one of the two years, so activity and efficiency cannot be separated here.
Where the 2025 emissions occurred
Methane, nitrous oxide and EU ETS2025
- Total CO₂ equivalent
- 17,796 t
- Methane (CH₄)
- 0.28 t
- Nitrous oxide (N₂O)
- 0.99 t
- Under EU ETS
- 14,862 t, 85% of total
Observed movementsAIS · Norwegian waters
- First seen
- 29 Aug 2025
- Last seen
- 13 Sep 2025
- Days observed
- 14
- Positions
- 1,311
- Median speed
- 14.1 kn
Its recorded positions span 58.0°N to 71.0°N and 4.4°E to 23.7°E.
214 hourly points from 1,311 positions. Filled circle first, open circle last; squares are ports for orientation, not calls.
Positions recorded per month
Norwegian Coastal Administration open AIS, Norwegian waters only, 01 Jul 2025 to 27 Jul 2026. A gap means the vessel was not recorded here, not that it was idle or that a transponder was off.
Verifier history
| From reporting year | Verifier | Accredited in |
|---|---|---|
| 2018 | Lloyd's Register Quality Assurance Ltd | United Kingdom |
| 2022 | DNV | Germany |
A change of verifier is not in itself a sign of anything being wrong.
Sources and how to read this
- Emissions: EU MRV publication (THETIS-MRV), reporting years 2018–2025, published by the European Commission.
- Vessel particulars: Wikidata (CC0) and Wikimedia Commons.
- Movements: Norwegian Coastal Administration open AIS extract.
This page draws on 5 MRV reporting years, 5 of 5 vessel particulars, AIS movements in Norwegian waters and a licensed photograph. Not found in the sources for this vessel: an efficiency ranking, a name history, a sanctions listing and US port state inspections.
Empty means unreported, never zero. How EEOI, distance, percentiles and sister ships are handled is explained under reading a vessel page. Something wrong? See corrections.