Pempheris
Pempheris is a genus of fish in the family Pempheridae, commonly known as sweepers or whalefishes. These fish are found in tropical and subtropical waters around the world, typically inhabiting coral reefs, rocky shores, and seagrass beds.
Characteristics
Sweepers are small to medium-sized fish, typically ranging from 5 to 25 cm in length. They are characterized by their laterally compressed, deep bodies, with a pronounced dorsal fin. Most species are silvery-grey to brown in color, with some having darker markings or stripes. Their large, forward-facing eyes are well-suited for nocturnal foraging. These fish are highly social and often form large schools during the day, dispersing at night to feed.
Habitat and Ecology
Pempheris species are primarily found in coastal waters, typically inhabiting shallow reef flats, rocky shores, and seagrass beds. Some species are also found in deeper water, down to depths of 200 meters. They are generally nocturnal, feeding on zooplankton and small invertebrates at night. During the day, they congregate in large schools, often seeking refuge in caves, under overhangs, or in dense seagrass.
Species
The genus Pempheris includes approximately 25 recognized species, some of which are listed below:
- Pempheris adusta
- Pempheris analis
- Pempheris atrimentum
- Pempheris multiradiata
- Pempheris schlegelii
- Pempheris vanicolensis
References
For further information, please refer to the following resources: