An expedition in the Hermandad Marine Reserve reveals key migratory species routes in Ecuador

For 23 days, the Yualka vessel traveled nearly 1,900 kilometers within the Hermandad Marine Reserve. Onboard were artisanal fishermen from Coopespromar and scientists from the Galapagos Science Center.

The journey began on Isabela Island, moved westward, and then extended in a straight line towards Costa Rica. This route allowed for the monitoring of species such as sharks, manta rays, turtles, and whales.

Additionally, the trip offered unexpected findings, such as the presence of sea lions outside the Galapagos Marine Reserve. Moreover, a group of pilot whales accompanied part of the expedition, highlighting the richness of the marine corridor.

An expedition in the Hermandad Marine Reserve reveals key routes of migratory species in Ecuador. Photo: El País.
An expedition in the Hermandad Marine Reserve reveals key routes of migratory species in Ecuador. Photo: El País.

Technology and traditional knowledge to research without harming the ecosystem

Each day on the Yualka combined scientific planning with fishing experience. In the morning, 400-meter lines equipped with BRUVS cameras, a non-invasive monitoring technique, were deployed.

Then, at sunset, the team retrieved the devices and analyzed the recordings. Subsequently, scientists and fishermen went back to sea to perform shark tagging.

This procedure, based on placing tags on the fins, allows for tracking movements and vital data. Consequently, it provides key information to protect species against threats like industrial fishing.

Unprecedented cooperation that transforms the relationship with the ocean

The joint work between fishermen and scientists marked a historic change in the region. Unlike past decades, today both sectors collaborate and actively exchange knowledge.

On one hand, fishermen contribute experience in navigation and sea maneuvers. On the other, scientists provide tools to better understand marine biodiversity.

As a result, this interaction promotes new practices of sustainable fishing. In fact, awareness is growing about the importance of planning catches and avoiding the extraction of young species.

An expedition in the Hermandad Marine Reserve reveals key routes of migratory species in Ecuador. Photo: El País.
An expedition in the Hermandad Marine Reserve reveals key routes of migratory species in Ecuador. Photo: El País.

The ecological role of the Hermandad Marine Reserve

The Hermandad Marine Reserve plays a strategic role in the conservation of the Pacific Ocean. Firstly, it acts as a biological corridor for migratory species moving between Galapagos, Cocos, and other areas.

It also protects highly productive pelagic ecosystems, where the circulation of nutrients favors the abundance of plankton and fish. This supports complex food chains.

Furthermore, it safeguards large predators like hammerhead sharks and whale sharks, which are essential for ecological balance. Therefore, its conservation ensures the stability of extensive marine regions.

Findings that alert to pending challenges in marine protection

During the expedition, at least 96 species were identified, and key migratory routes were recorded. Among them, the movement of hammerhead sharks towards Cocos and Panama.

However, persistent threats were also detected, such as ghost fishing and industrial activity in nearby areas. These practices continue to affect biodiversity.

Finally, the results show that effective protection requires international coordination. In this regard, the conservation of the marine corridor will depend on sustained agreements between countries to safeguard these vital routes.

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