Inter-Research > MEPS > v691 > p83-96  
Marine Ecology Progress Series

via Mailchimp

MEPS 691:83-96 (2022)  -  DOI:

Swimming behaviors during diel vertical migration in veined squid Loligo forbesii

Seth F. Cones1,2,*, Ding Zhang3, K. Alex Shorter3, Kakani Katija4, David A. Mann5, Frants H. Jensen1,6, Jorge Fontes7, Pedro Afonso1,7, T. Aran Mooney1

1Biology Department, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA
2MIT-WHOI Joint Program in Oceanography/Applied Ocean Science & Engineering, Cambridge, MA 02139, USA
3Department of Mechanical Engineering, University of Michigan, Ann Arbor, MI 48109, USA
4Research and Development, Monterey Bay Aquarium Research Institute, Moss Landing, CA 93940, USA
5Loggerhead Instruments, Sarasota, FL 34238, USA
6Biology Department, Syracuse University, Syracuse, NY 13244, USA
7Institute of Marine Sciences - Okeanos, University of the Azores, Rua Professor Doutor Frederico Machado 4, 9901-862 Horta, Portugal
*Corresponding author:

ABSTRACT: Diel vertical migration (DVM) is a vital behavior for many pelagic marine fauna. Locomotory tactics that animals use during DVM define the metabolic costs of migrations and influence the risk of detection and capture by predators, yet, for squids, there is little understanding of the fine-scale movements and potential variability during these migrations. Vertical migratory behaviors of 5 veined squid Loligo forbesii were investigated with biologging tags (ITags) off the Azores Islands (central North Atlantic). Diel movements ranged from 400 to 5 m and were aligned with sunset and sunrise. During ascent periods, 2 squid exhibited cyclic climb-and-glide movements using primarily jet propulsion, while 3 squid ascended more continuously and at a lower vertical speed using mostly a finning gait. Descents for all 5 squid were consistently more rapid and direct. While all squid swam in both arms-first and mantle-first directions during DVM, mantle-first swimming was more common during upward movements, particularly at vertical speeds greater than 25 cm s-1. The in situ variability of animal posture, swim direction, and gait use revealed behavioral flexibility interpreted as energy conservation, prey capture, and predator avoidance.

KEY WORDS: Diel vertical migration · DVM · Jet propulsion · Climb-and-glide · Bio-logging · Squid · Swimming behavior

Full text in pdf format
Cite this article as: Cones SF, Zhang D, Shorter KA, Katija K and others (2022) Swimming behaviors during diel vertical migration in veined squid Loligo forbesii. Mar Ecol Prog Ser 691:83-96.

Export citation
Share:    Facebook - - linkedIn

 Previous article Next article