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Juvenile emperor angelfish

SWEETLIPS

Underwater photography: images of sweetlips taken while scuba diving
Blackspotted sweetlips | Oriental sweetlips | Many-spotted sweetlips | Ribbon sweetlips | Silver sweetlips
Class: Actinopterygii Order: Perciformes Family: Haemulidae Genus: Plectorhinchus

Sweetlips belong to the family Haemulidae, which has 35 species. Adults, grow to between 50 and 85 centimetres while juveniles are frequently spotted at just
1-2 cm.

Sweetlips are named – fairly obviously – for their large protruding lips. There are 35 species that live on or near coral reefs but they can sometimes be observed in brackish water as well.

Individual species tend to live in clusters or pairs and are often found sharing "space" with sweetlips of another species or even with other, completely different fish that have a similar appearance. Striped snapper are a favoured collaboration (image 10 above). These groups live in nooks and crannies on the reef, tucked between layers of coral or hovering in small channels until dark. Night is their favoured feeding time when they abandon their shelter to hunt for bottom-dwellers like bristleworms and crustaceans.

One of the most fascinating things about these fish is the way their appearance changes as they age. Tiny juveniles have almost no resemblance to their adult state with colours and patterns, stripes and dots all changing hue or shape. Juveniles tend to be solitary too and use an unusual form of camouflage – a weird and extremely manic fluttering motion as they swim, which is thought to mimic an undulating, poisonous flatworm.

Sweetlips
image gallery

click any image to enlarge
Int. = intermediate stage
Juv.= juvenile

Sweetlips are not regarded as a threatened species
Sweetlips encounters
LOCATION:
Maratua, Indonesia
DIVE SITE:
Maratua Wall
DEPTH:
22 metres
SPECIES:
Plectorhinchus Chaetodonoides
COMMON NAME:
Many-spotted sweetlips
DIVE LOG:

Drifting down this long and virtually vertical wall, we noted how well it was covered in pristine hard corals.

Tiny blue chromis were the principal, and in fact, almost only, residents. They danced above the stacked layers of prolific table corals. There were also some big fans and soft corals but a surprising lack of any other fish swimming about.

Once we spotted this sweetlips, we realised why. All the fish were sheltering comfortably from the current, while we mad divers were forced to keep on the move.

french angelfish in Grenada
SPECIES NAMES | Many fish can be hard to identify as they are so similar. Common names vary and even scientists disagree on what is what. If you can name anything we can't, please get in touch.

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