Large Gathering of Whale Sharks in Mexico
Author Information
Author(s): de la Parra Venegas Rafael, Hueter Robert, González Cano Jaime, Tyminski John, Gregorio Remolina José, Maslanka Mike, Ormos Andrea, Weigt Lee, Carlson Bruce, Dove Alistair
Primary Institution: Proyecto Dominó, Comisión Nacional de Áreas Naturales Protegidas, Cancún, Quintana Roo, México
Hypothesis
Whale sharks in the Afuera aggregation are likely feeding on fish eggs.
Conclusion
The study found the largest aggregation of whale sharks ever reported, with up to 420 individuals observed feeding in a specific area.
Supporting Evidence
- The Afuera aggregation was observed to have up to 420 whale sharks in a single aerial survey.
- Plankton studies indicated that the sharks were feeding on dense patches of fish eggs.
- The study documented a significant shift in whale shark sightings from Cabo Catoche to the Afuera site.
Takeaway
Whale sharks usually swim alone, but in Mexico, they gather in large groups to eat fish eggs, which is really special.
Methodology
Aerial surveys were conducted to observe and count whale sharks in the Afuera area over several years.
Limitations
The study may not account for all whale sharks present due to repeated sightings and potential missed observations.
Digital Object Identifier (DOI)
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