Patience and Persistence a sweetlips, a photographer, and a few annoying damselfish
Somewhere over a sandy patch off the coast of Seychelles, I found exactly what I’d been hoping for: an Oriental sweetlips holding still, good light, clean water, and nothing in the frame but that gorgeous striped body and those absurd, fleshy lips. Then the sergeant majors showed up — and reminded me whose reef it actually was.
“In underwater photography, you can control your lighting, your buoyancy, and your framing. You cannot control the damselfish.”
The Reluctant Star and the Scene-Stealer
The Oriental sweetlips (Plectorhinchus vittatus) is a patient, unbothered subject, moving at the pace of a fish that has never once felt rushed in its life.
The subadults and adults are characterized by their striking horizontal black and white stripes and yellow fins adorned with black spots.[1] They are the perfect models for a serene reef portrait — patient, symmetrical, unbothered by a diver’s presence.
Enter the Indo-Pacific sergeant (Abudefduf vaigiensis). Small, fast, marked with five bold black bars over a silvery-white body and a yellow-tinged back,[5] and utterly convinced he outranks everyone on the reef. True to the name, sergeant majors are famously territorial — a trait rooted directly in their breeding biology.[2]
- Family
- Haemulidae, the grunts and sweetlips.
- Shape
- Robust body, large fleshy lips, slightly humped back.
- Habitat
- Clear shallow protected lagoons and seaward reefs.
- Diet
- Benthic invertebrates and small fishes.
- Diver Risk
- Harmless to humans; generally docile and approachable.
- Best Clue
- Horizontal black and white stripes with yellow, black-spotted fins.
- Family
- Pomacentridae, the damselfishes.
- Shape
- Oval body, five bold black bars, yellow-tinged back.
- Habitat
- Upper reef slopes, lagoons, and inshore rocky reefs.
- Diet
- Zooplankton, benthic algae, and small invertebrates.
- Diver Risk
- Generally harmless, though territorial males may confront divers near nest sites.
- Best Clue
- Five vertical black bars on a silvery-white body, yellow dorsally.
The Photobomb Sequence
Not once. Not twice. Across every single frame in this sequence, this one small, loud-mouthed damselfish decided my shoot was actually his shoot, and that the sweetlips — and I — were just there to supply the backdrop.
At first, everything looked ideal: the sweetlips framed dead center, and off in the corner, barely worth mentioning, a small yellow-and-black shape loitering near the reef. That calm lasted about as long as it took the sergeant major to close the distance. He cut directly across the sweetlips’ face at the exact moment the framing was perfect — first contact, and clearly no accident.
I adjusted. He adjusted faster, holding roughly the same spot in the frame no matter which angle I tried.
By the time he’d closed in enough to go soft with motion blur, it was obvious this wasn’t a one-off. He’d made the shot his.
Frame after frame, he parked himself in the same spot, like he’d been assigned there.
One more pass, one more perfectly good composition, one more sergeant major parked dead center.
The sweetlips finally eased off toward open water — its escort trailing a fin’s length behind, still very much on duty.
Common Questions
Why are sergeant majors so aggressive?
It comes down to parental duty. During breeding, males take on sole responsibility for a nest of demersal eggs laid directly on the reef substrate, fanning and guarding them until they hatch a few days later.[2] That duty is enough to make some individuals challenge intruders many times their size — divers included.
Do juvenile sweetlips look different from adults?
Yes, dramatically so. Juveniles are black with large white spots edged in orange, a pattern with nothing in common with the adult’s clean horizontal stripes.[6] As they mature into subadults and adults, the spots disappear entirely and the characteristic stripes seen in these photos take over.
Where can scuba divers see Oriental sweetlips?
They are widely distributed across the Indo-Pacific, from East Africa and the Red Sea to Samoa, and as far north as Japan and south to New Caledonia.[3] They are commonly found in clear, shallow lagoons and seaward reefs.
References
- FishBase: Plectorhinchus vittatus, Oriental sweetlips.
- FishBase: Abudefduf vaigiensis, Indo-Pacific sergeant.
- IUCN Red List of Threatened Species: Carpenter, K.E. et al. (2019), Plectorhinchus vittatus.
- IUCN Red List of Threatened Species: Allen, G. et al. (2017), Abudefduf vaigiensis.
- Australian Museum: Indo-Pacific Sergeant, Abudefduf vaigiensis.
- Reef Life Survey: Plectorhinchus vittatus, Oriental sweetlips.
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