Primed and cued: long-term acoustic telemetry links interannual and seasonal variations in freshwater flows to the spawning migrations of Common Snook in the Florida Everglades
Abstract
Spawning migrations are a widespread phenomenon among fishes, often occurring in response to environmental conditions prompting movement into reproductive habitats (migratory cues). However, for many species, individual fish may choose not to migrate, and research suggests that conditions preceding the spawning season (migratory primers) may influence this decision. Few studies have provided empirical descriptions of these prior conditions, partly due to a lack of long-term data allowing for robust multi-year comparisons. To investigate how primers and cues interact to shape the spawning migrations of coastal fishes, we use acoustic telemetry data from Common Snook (Centropomus undecimalis) in Everglades National Park, Florida, USA. A contingent of Snook migrate between rivers and coastal spawning sites, varying annually in both the proportion of the population that migrates and the timing of migration within the spawning season. However, the specific environmental factors that serve as migratory primers and cues remain unknown.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Nov 13, 2022
- Source ID
- 10.1186/s40462-022-00350-5
Entities
People
- Alexis A. Trotter
- David A. Blewett
- Jennifer S. Rehage
- Jordan A Massie
- Natasha M. Viadero
- Philip W. Stevens
- Rolando O Santos
- Ross E Boucek
- Ryan J. Rezek
- W. Ryan James
Organizations
- National Science Foundation