Nighttime migrations and behavioral patterns of Pempheris schwenkii.

ABSTRACT:

Background

Although the biomass of the nocturnal fishes is almost same as that of diurnal fishes, most of the ecological studies that examine feeding or reproductive behaviors are on diurnal fishes. Therefore, there is limited ecological information regarding the nocturnal fishes. This fact may be attributed to the difficulty in observing them during darkness. Members of the genus Pempheris (Pempheridae) are one of the most abundant nocturnal fishes on coral reefs.

Methods

The nighttime migrations of Pempheris schwenkii were observed by attaching a chemical luminescent tag. Tagged fishes were followed by an observer without torch and SCUBA, and their positions and estimated depths were plotted on an underwater topographic map. Aquarium tank observation was carr

SUBMITTER: Koeda K 

PROVIDER: S-EPMC8603829 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature