Baja California’s coastal waters, particularly around Ensenada, serve as a critical summer habitat for the world’s largest marine mammal: the blue whale. Unfortunately, this vibrant ecosystem directly overlaps with active commercial shipping lanes, and newly approved port developments threaten to drastically increase heavy cargo traffic in the region. As shipping density grows, so does the risk of fatal ship strikes for these magnificent animals. To protect them, we must gather precise data on their spatial distribution and movements.

This July, our on-the-water expedition will conduct focused surveys to photo-identify individual whales and collect vital biological samples. By collaborating closely with CONANP, Stanford University, and Ocean Alliance, the data we collect will directly inform the establishment of protective marine regulations—including mandatory speed reduction zones and “Areas To Be Avoided” (ATBAs) designed to route massive vessels away from whale hotspots. 

Methods

1. Photo-Identification: Identify individuals by taking photographs of their dorsal fins.

2. Suction-Cup Camera Tags: Assess behavior using drone-deployable camera tags. 

3. Collect Tissue Biopsies: Obtain tissue samples for genetic, stable isotope, and contaminant testing.

4. Record Acoustic Data: Submerge an omnidirectional hydrophone during encounters to capture recordings of blue whale songs.

Objectives

• Gather the data needed to inform and designate vessel speed reduction zones