SANTO DO MAR (IMO 9329174) Table Bay, Cape Town
SANTO DO MAR (IMO 9329174): MOS Ship spotting Observation in Cape Town
SANTO DO MAR (IMO 9329174) joins the VCP Maritime Observation System through a Cape Town ship spotting observation and documented vessel research. |
| SANTO DO MAR (IMO 9329174) Table Bay, Cape Town |
Photographer's Note: SANTO DO MAR (IMO 9329174) was photographed by Vernon Chalmers in Table Bay, Cape Town. The image forms part of the Vernon Chalmers Photography Maritime Studies Project and is also published in the Shipspotting.com database.
A MOS Ship Spotting Observation in Cape Town
VCP Maritime Observation System (MOS) | Vessel Observation
On 28 September 2026, the vessel SANTO DO MAR (IMO 9329174) entered the Vernon Chalmers Photography Shipspotting index from Cape Town, adding another vessel to the developing Maritime Observation System (MOS) database.
At first glance, the observation is straightforward: identify the vessel, record the IMO number, establish its location and preserve the photograph. Within the MOS framework, however, this is only the beginning.
The value of the observation lies partly in what can subsequently be discovered about the vessel and partly in the way the observation becomes connected to a growing body of Cape Town maritime photography.
The initial MOS observation
The Shipspotting record provides the essential starting point:
Vessel: SANTO DO MAR
IMO: 9329174
Type: Fishing vessel
Observation: Cape Town, South Africa
Date: 28 September 2026
The IMO number is particularly important. Vessel names can change, while the IMO number provides a persistent identifier around which the MOS record can be constructed.
The new observation has therefore been entered into the VCP MOS database as a new vessel record rather than simply becoming another isolated photograph.
This distinction is fundamental to the MOS approach.
The photograph represents an observation of a vessel. The database represents the continuing identity and history of the vessel.
OBSERVE → PHOTOGRAPH
The first two stages of MOS are deliberately simple:
OBSERVE → PHOTOGRAPH
The vessel is encountered within the Cape Town maritime environment and photographed. At this stage, the photographer does not necessarily need to know its entire history.
The visual observation establishes the starting point.
The Shipspotting index then provides an initial documentary layer: vessel name, IMO number, location and date.
This is one of the reasons I regard shipspotting as more than simply photographing ships. A photograph can become the first piece of evidence in a much larger observational record.
Vernon Chalmers Ship Spotting Photography Portfolio
IDENTIFY: the IMO number changes everything
The identification of IMO 9329174 opens the next stage.
Available maritime records identify SANTO DO MAR as a fishing vessel, built in 2004, approximately 50 metres long and 9 metres in beam. Current AIS-derived records identify the vessel under the South African flag, with MMSI 601010820 and callsign ZS7494. (myShipTracking)
This is already substantially more information than is visible in the original Shipspotting index entry.
The identification stage therefore demonstrates an important MOS principle:
The photograph initiates the investigation; the identifier makes the investigation possible.
A vessel with a previous identity
The research also reveals an interesting historical dimension.
Earlier Shipspotting records show SANTO DO MAR operating as a Spanish fishing vessel, with callsign ECFA, MMSI 224387000, and home port Las Palmas. Shipspotting records from 2007, 2008 and 2017 document the vessel in Spain. (Shipspotting)
The Spanish General Register of Fishing Fleet provides additional historical information. It records SANTO DO MAR under IMO 9329174 and Spanish registration 3GC-1-1-04, with a registration date of 17 May 2004. The Spanish record now describes its status as definitively deregistered from the Spanish register from 10 December 2024. (Pesca)
This creates an intriguing transition in the MOS record:
Spanish fishing vessel → change of registry/identity context → South African-flagged fishing vessel → Cape Town observation
That transformation is precisely the kind of information that would disappear if the photograph were treated simply as a standalone image.
INVESTIGATE
The MOS investigation can therefore move beyond identification.
Current maritime tracking records associate SANTO DO MAR with repeated Cape Town port activity during 2026. AIS Friends, for example, records Cape Town calls during February–September 2026 and identifies the vessel as South African-flagged, with a length of approximately 50 metres, gross tonnage of approximately 592 and callsign ZS7494. (AIS Friends)
Other AIS-derived sources similarly identify Cape Town as the vessel's recent operating environment. (myShipTracking)
The investigation therefore places the 28 September photograph into a much broader maritime context.
It is no longer simply:
I photographed a fishing vessel in Cape Town.
It becomes:
I photographed a specific, IMO-identified fishing vessel whose current South African maritime identity can be connected to an earlier Spanish operational history.
That is a very different kind of photographic record.
DOCUMENT
The next MOS stage is DOCUMENT.
The observation is now represented in several complementary systems:
the original photographic file;
the VCP Shipspotting portfolio;
the VCP MOS Vessel Database;
the vessel's IMO-based identity;
external maritime and AIS records;
and, eventually, a dedicated VCP MOS essay.
This creates a chain of documentary relationships.
The MOS database currently distinguishes between the Vessel Master record and the Observation Log.
SANTO DO MAR becomes a permanent vessel entity in the database, while the 28 September 2026 photograph becomes an individual observation associated with that entity.
If the vessel is photographed again, another observation can be added without creating a duplicate vessel.
This will become increasingly important as the VCP maritime portfolio grows.
ARCHIVE
The archival function of MOS is equally important.
The objective is not merely to accumulate photographs. It is to preserve the relationships between:
Vessel → Observation → Date → Location → Identification → Research → Documentation
Over time, this should make it possible to reconstruct aspects of the Cape Town maritime environment through the photographic record itself.
SANTO DO MAR is therefore not simply another entry in the index. It becomes MOS vessel record number 49, with its first recorded VCP observation on 28 September 2026.
The distinction between the 49 unique vessels and the 51 vessel observations already demonstrates why this database architecture is useful. Repeat sightings can accumulate without confusing observations with vessels.
INTERPRET
The final MOS stage is INTERPRET.
At this early stage, interpretation should remain deliberately modest.
The photograph establishes the presence of SANTO DO MAR within the Cape Town observation environment on 28 September 2026. Research establishes that the vessel has a documented history extending back to its Spanish registration and earlier appearances in European maritime photography.
The significance of the observation therefore lies not in making the photograph appear more important than it is, but in recognising that a contemporary photograph can become an entry point into maritime history.
This is one of the central ideas developing through the MOS project.
Photography provides the observation.
Identification provides the subject.
Research provides context.
Documentation connects the evidence.
Archiving preserves it.
Interpretation eventually asks what the accumulated record tells us.
Table Bay Maritime Environment Through Photography
SANTO DO MAR within the developing MOS record
SANTO DO MAR is consequently a useful addition to the VCP maritime archive because it demonstrates the MOS process in practice.
The sequence is:
OBSERVE
A fishing vessel is encountered in the Cape Town maritime environment.
PHOTOGRAPH
The vessel is photographed on 28 September 2026.
IDENTIFY
The vessel is established as SANTO DO MAR, IMO 9329174.
INVESTIGATE
Its fishing-vessel classification, South African identity, AIS information and earlier Spanish history are researched.
DOCUMENT
The observation enters the Shipspotting portfolio and the VCP MOS database.
ARCHIVE
The vessel becomes a persistent record rather than a disposable photographic event.
INTERPRET
The observation contributes to a growing photographic and documentary record of maritime activity around Cape Town.
That final stage is still developing.
And that is intentional.
MOS is not a system in which every photograph needs an immediate conclusion. It is a system in which an observation can remain open to future investigation.
SANTO DO MAR therefore joins the VCP maritime archive not simply as another ship photographed from Cape Town, but as another identifiable piece of the developing Maritime Observation System.
Sources used for the initial MOS investigation
Shipspotting's existing vessel records document the vessel's earlier Spanish identity and photographic history. (Shipspotting)
The Spanish General Register of the Fishing Fleet provides historical registration information. (Pesca)
Current AIS-derived maritime databases provide the South African flag, MMSI, callsign, dimensions and Cape Town activity used in this preliminary investigation. (myShipTracking)
MOS status: OBSERVE → PHOTOGRAPH → IDENTIFY → initial INVESTIGATE → DOCUMENT → ARCHIVE.
Photographic Equipment
Camera: Canon EOS R6 Mark III
Lens: Canon RF 800mm f/11 IS STM Lens
Photographic Genre: Maritime Photography / Ship Spotting
Post Processing: Adobe Lightroom Classic Version 15
Reference point: Milnerton Lighthouse, Table Bay, Cape Town
