Work

New larval records in the southwestern Atlantic and global distribution patterns of daggertooth Anotopterus pharao (Aulopiformes: Anotopteridae)

Year: 2025

Type: article

Abstract: This study presents new larval records of daggertooth fish Anotopterus pharao (Aulopiformes: Anotopteridae) in the southwestern Atlantic and explores its global distribution patterns. This species is extensively distributed in oceans, with concentrations in subtropical, temperate and polar regions. We found new records at depths between 550 and 1100 m, associated with Antarctic Intermediate Water. We collected eight larvae at different developmental stages: preflexion (n = 4), flexion (n = 3) and postflexion (n = 1). The presence of preflexion larvae suggests reproduction in southeastern Brazil. Additionally, their occurrence at great depths in lower latitude may indicate potential strategies such as latitudinal migration for reproduction and vertical migration to avoid thermal stress.

Source: Journal of Fish Biology

DOI: 10.1111/jfb.70027

Authors: Henrique Grande, Érico S. L. G. Santos, Gabriel Vilanova, Mario Katsuragawa, Cláudia A. P. Namiki, Frederico P. Brandini

Institution: Universidade de São Paulo

Language: English

Topic: Fish Biology and Ecology Studies

Subfield: Aquatic Science

Field: Agricultural and Biological Sciences

Domain: Life Sciences

SDG: Life below water

Open Access status: green

Funder: Petrobras