Celebrate Endangered Species Day

Endangered Species Day is a celebration of the nation’s wildlife and wild places and is an opportunity for people of all ages to learn about the importance of protecting endangered species. Started in 2006 by the United States Congress, Endangered Species Day occurs on the 3rd Friday of May to inspire people to take action in their everyday lives to help protect endangered species.

At Pacific Whale Foundation we research two endangered species: humpback whales and false killer whales.

As with many endangered species, both humpback whales and false killer whales are endangered due to human activities. The North Pacific population of humpback whales was hunted until only a few hundred individuals remained. Although their population has recovered immensely—recent estimates suggest approximately 20,000 humpbacks in the North Pacific—they and other large whale species are still at risk of vessel collisions and entanglement in fishing gear. Our current research on humpback whales aims to reduce the risk of these collisions by determining which factors contribute to detectability of the whales.

The major threat for false killer whales is entanglement in longline fishing gear. False killer whales prey on economically important pelagic fish such as mahi and tuna. Unfortunately, this results in frequent interactions with fishing gear that lead to entanglement injuries and bycatch events. Research on false killer whales at Pacific Whale Foundation focuses on abundance, distribution and social structure, allowing us to better manage and conserve this species.

For Endangered Species Day 2016, try incorporating these actions into your daily routine:

Make purchasing choices to protect endangered species:

Opt for biodegradable packaging instead of plastics and other synthetic materials that contribute to the growing problem of persistent marine debris. Use the Seafood Watch app from Monterey Bay Aquarium to choose fish that are caught in ways that protect endangered species from threats such as entanglement and bycatch.

Visit a national wildlife refuge, park, or sanctuary:

One of the best ways to conserve endangered species is to conserve the places that they call home. National wildlife refuges, parks, and sanctuaries are often designated because they provide crucial habitat for endangered species. Whether it’s watching humpback whales within the Hawaiian Islands Humpback Whale National Marine Sanctuary or trying to catch a glimpse of a manatee in Everglades National Park, visiting and supporting these protected areas goes a long way toward the conservation of these species.

Support experiences that respect wildlife and their habitats:

For your summer vacation, choose activities that respect wildlife and natural areas. Look for certified ecotourism companies with a focus on conservation and responsible management of endangered species.  For example, Pacific Whale Foundation is a certified sustainable tour operator with science, advocacy, and conservation at the core of its mission.

Adopt an Endangered Species:

Several organizations offer the opportunity to adopt different endangered species. Adoptions are a great way to support conservation efforts while getting to know the life history of individual animals. At Pacific Whale Foundation, you can adopt your very own humpback whale or false killer whale to help our researchers learn more about these species. We offer multiple levels of adoption packages, but all include an adoption certificate, sightings history, and sightings map of your whale.

FACT OF THE WEEK: False Killer Whales Call Hawaii Home

MORE ON THIS: False killer whales, while a globally distributed species, have a special tie to Maui and the four-island region. Recent research has found that a very small group of this odontocete, or toothed whale species,  calls Hawaiian waters home, making them genetically different from offshore groups. This makes this population especially interesting because false killer whales are generally thought to prefer deep ocean environments far from any land.

Genetic tests were completed on samples collected from groups of false killer whales around the main Hawaiian islands and locations throughout the North Pacific. Researchers found samples collected from individual whales close to the Islands were most genetically unique when compared to samples from whales in the Pacific Ocean, Panama and Mexico. The uniqueness of the samples indicates there are two separate populations; an inshore population and an offshore population.

Their acrobatic displays and tendencies to bow ride make false killer whales hard to miss if you are lucky enough to see one. Hawaii insular population numbers are predicted to be as low as 123 individuals, with only 46 capable of breeding. There is good news though. The insular false killer whale population was classified as an Endangered Species in 2012, meaning this population now has extra protection. Keep your eyes open. If you’re lucky you will see one of Hawaii’s very own false killer whales.

FURTHER READING:

  1. Protecting Hawaii’s False Killer Whale. Pacific Whale Foundation. Accessed October 8, 2015
  2. Baird, R. (2009). A review of false killer whales in Hawaiian waters: biology, status, and risk factors. US Marine Mammal Commission: 1-40.
  3. Chivers et al. (2009). Genetic Variation and Evidence for population structure in eastern North Pacific false killer whales. Canadian Journal of Zoology, 85: 783-94.

Written by Chelsea Brown

Double Take: False Killer Whales and Pilot Whales in the Same Day

When the research team carries out odontocete transects, we are looking for all species of toothed whales, but most commonly we see bottlenose, spotted and spinner dolphins. On rare occasions we see false killer whales, of which the insular Hawaiian population is on the endangered species list, and short-finned pilot whales, which is a deeper water species not commonly found in the shallower waters of our survey area. We might see these two species a handful of days per year. Well, believe it or not, we were recently lucky enough to see them both on the same day!

We were surveying the area behind the island of Lana‘i and we had a feeling it was going to be a special day when we set off from Ma‘alaea Harbor. We had just arrived at the start of our first transect line when we saw a large black dorsal fin. We soon realized that this was a false killer whale. At first we only saw one solitary individual, but it soon swam and joined the rest of its pod, which we estimated at 15 individuals. We photographed them to obtain ID’s for our false killer whale catalog and collected behavioral data. When we were satisfied that we had photographed all the individuals present we returned to our transect line, excited that we had such an exciting experience so early in the day.

Less than 30 minutes later we spotted another dorsal fin, only this one was much larger than the other species. Could it be? A quick confirmation with binoculars told us that, yes, we had a pod of short-finned pilot whales right in front of us. The pod was milling at the surface and spyhopping to check us out. Once again we photographed them for our photo-ID catalog and collected behavioral data as per our protocol. This time we stayed the maximum 60 minutes, and then we had to leave and return to complete the transect line.

Later that month we cataloged the photographs taken that day and realized that not one of the pilot whales photographed that day was a match to our catalog.  This most likely means that this pod was an entirely new sighting for us; we have never photographed them before. We added 22 new individuals to our catalog; 0 were re-sights. Of the false killer whales photographed, 10 were new individuals to our catalog and 3 were re-sights.

It was really a very special day for all of us on board the Ocean Protector. We consider ourselves very lucky if we see one of these species and to see them both in a single day was so amazing.

Here is a map to show you where the research department has sighted these two species over the past few years:

Sightings Map Of False Killer Whales and Short-Finned Pilot Whales