Molluscs Production and Lunar-Tide Cycle in Paraíba State
Author Information
Author(s): Nishida Alberto K, Nordi Nivaldo, Alves Rômulo RN
Primary Institution: Universidade Federal da Paraíba
Hypothesis
Molluscan meat production increases during spring tide and decreases during neap tide.
Conclusion
The study confirmed that the condition index of molluscs aligns with the lunar-tide cycle, supporting local gatherers' observations.
Supporting Evidence
- 80% of the catches confirmed the gatherers' assertion about the condition index and lunar-tide cycle.
- The condition index increased during spring tides and decreased during neap tides.
- Gatherers have a deep knowledge of the bioecology of molluscs and environmental factors affecting them.
Takeaway
Molluscs get fatter during certain tides, and this study shows that local gatherers were right about it.
Methodology
The study involved observing mollusc gatherers and collecting data on the condition index of Tagelus plebeius over a lunar-tide cycle.
Potential Biases
The study relied on self-reported data from gatherers, which may introduce bias.
Limitations
The study acknowledges potential errors during fieldwork and sample processing.
Participant Demographics
Twelve mollusc gatherers with at least 20 years of experience were interviewed.
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website