Blake Gillespie

Blake Gillespie

Feb 16, 2014

Group 6 Copy 61
2

On the water

We arrived in Drake Bay on 2/2/14. We spent many days getting settled into our house, transitioning the kids into their new life and school. They started school on Monday, 2/10. This Thursday, 2/13, I finally got out on the water after extended discussions with some locals and expats about boats and captains. For now, I'm strictly abiding by all the restrictions in place to protect the jorobadas (proximity, duration of the interaction), because we're still waiting on the arrival of our permisos from ACOSA (Areá de Conservación Osa). My colleague from Fundación Keto, Pala, should be arriving in Bahía Drake early next week, bearing permits! Still, it was a terrific morning on the water. Below you can see the study area, and the route we took looking for our animals. I'm using iNavX on the iPad, and a BadElf Pro for data collection.

As you can see, we worked our way around Paraíso, a well-known fishing spot, and the location my boat captain had heard whales had been sighted. After a fruitless look there, we worked out way around Caño Island, and back to Paraíso. Sure enough, we found mother and calf traveling, with 5 minute breathing intervals. No fluke though! Cruel mother! We dropped down to the South, so we could travel back via Marenco, another spot local boat captains had noticed whales in recent days. Right now, there are few whales in the region, but more are coming. Here's a snap of the first female-calf pair I encountered on this expedition!

Beautiful!

2 comments

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  • Ritchie Froehlich
    Ritchie FroehlichBacker
    Question: How do you know the whales are Californians? Just curious, not critical.
    Feb 17, 2014
  • Blake Gillespie
    Blake GillespieResearcher
    Well, there's no evidence that these particular whales feed in California, but the international collaborative effort known as SPLASH (http://www.cascadiaresearch.org/splash/splash.htm) outlined the feeding/breeding areas the humpbacks prefer. Based on their observations, it seems clear that humpbacks making it as far south as Costa Rica are migrating from the waters off Oregon and California. On the other hand, corroborating/extending those earlier studies is what we'll be doing here! Using fluke images, we'll be trying to match the animals in this nursery area to a particular feeding ground.
    Feb 18, 2014
  • Ritchie Froehlich
    Ritchie FroehlichBacker
    That photo looks great when expanded! Keep searching and updating - we look forward to every post. Ritchie & Charles
    Feb 17, 2014

About This Project

Humpback whales that summer in California make their way to Central America each winter, and many find their way to calving waters off the coast of Costa Rica. Using a growing fluke catalog of the California whales, I'll be identifying specific animals at specific times during their winter stay in Costa Rica. And I'll be conducting some behavioral studies of mothers and calves to see how their choices compare with other humpback populations.
Blast off!

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