Volume 75
Morphological variability of Ocyurus chrysurus in coral reefs of Guadeloupe (Lesser Antilles)
Authors
Boudault, M; Vignaud, L; Cordonnier, S; Frédérich, B; Dromard, C. R; Lecchini, D. Download PDF Open PDF in BrowserOther Information
Date: November, 2022
Pages: 155-156
Event: Proceedings of the Seventy-Five Annual Gulf and Caribbean Fisheries Institute
City: Fort Walton Beach
Country: USA
Abstract
The morphology of reef fishes is mostly related to the way a species feeds (inferior, superior or terminal mouth, head shape, volume of the oral cavity, dental equipment, jaw power, etc) but also influences their swimming and hunting abilities (undulation or oscillation, number and rigidity of fins, mimicry, etc). Changes in body shape during ontogeny have many advantages: promote reproduction or better defense, increase predator deterrence or diversity of accessible prey. This growth also brings many disadvantages such as higher vulnerability, larger food needs, impossibility of hunting in some reef cavities The tool used to quantify these variations in shape during ontogeny, also called ontogenetic trajectories, is called allometry by geometric morphometry (Bookstein, 1992).