Pachyoliva columellaris G.B. Sowerby I, 1825 (Olividae, Caenogastropoda) in Peru: tidal migrations and population density: tidal migrations and population density
The gastropod Pachyoliva columellaris (formerly Olivella columellaris) is particularly common on many sandy beaches in North Peru. In the studied region north of Paita, Piura province, the species reaches densities of over 80000 individuals per beach meter. The snails perform tidal migrations throughout the lunar cycle although tidal amplitudes differ four-fold between neap and spring tide. Not all animals complete their tidal migrations, and significant numbers remain above the water line at low tide. Throughout the tidal cycle, the proportion of small individuals is increased near the water line whereas large animals dominate in lower beach zones. I conclude that the sandy beaches north of Paita are well-suited for further studies of P. columellaris and the mechanisms underlying tidal migrations in invertebrates.
Main Author: | Peters, Winfried |
---|---|
Format: | Digital revista |
Language: | eng |
Published: |
Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas
2023
|
Online Access: | https://revistasinvestigacion.unmsm.edu.pe/index.php/rpb/article/view/24995 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Opportunistic suspension feeding in the intertidal gastropod Olivella columellaris and its implications for the regulation of tidal migrations
by: Morse,Aaron P, et al.
Published: (2016) -
Tidal inlet migration and formation: the case of the Ararapira inlet - Brazil
by: Italiani,Diana, et al.
Published: (2020) -
Lunar, diurnal and tidal periodicity in relation to the prawn abundance and migration in the Godavari estuarine systems
by: Subramanyam, M.
Published: (1965) -
Insignificance of tidal currents for silver eel migration as studied by eel tracking and current measurements
by: Tesch, F.-W. (Biologische Anstalt Helgoland, Hamburg (Germany)), et al.
Published: (1992) -
Population density, migration, and the returns to human capital and land: Insights from Indonesia
by: Liu, Yanyan, et al.
Published: (2024-08-01T02:50:22Z)