Featured Research

from universities, journals, and other organizations

Pacific humpback whale abundance higher in British Columbia

Date:
September 11, 2013
Source:
Public Library of Science
Summary:
Humpback whale populations are on the rise in the coastal fjords of British Columbia, doubling in size from 2004 to 2011.

Researchers estimated abundance of Pacific humpback whales (Megaptera novaeangliae) using photo-identification surveillance of identifiable adults.
Credit: Rob Williams, Creative Commons Attribution License

Humpback whale populations are on the rise in the coastal fjords of British Columbia, doubling in size from 2004 to 2011, according to results published September 18 in the open access journal PLOS ONE by Erin Ashe from the Sea Mammal Research Unit at the University of St. Andrews and colleagues from other institutions.

Related Articles


Researchers estimated abundance of Pacific humpback whales (Megaptera novaeangliae) using photo-identification surveillance of identifiable adults. They found that the number of humpback whales in the region increased each year, and doubled from 2004 to 2011, resulting in a total of 137 whales in 2011. The survey was conducted year-round, but abundance was estimated only during the summer months of July to September, when the migrating whale population is largest.

The survey focused on summer feeding regions in the coastal fjords that serve as a pit stop for whales to refuel between migrations. Migrating whales can travel as far as Hawaii or Japan and go several months without feeding. Whatever the whales are doing seems to be working.

The authors estimated that survivorship, the average probability of an adult whale surviving from one year to the next is among the highest reported anywhere for this species. During this critical refueling stage in these waters, the whales are more vulnerable to environmental stressors, such as those potentially created by increasing tourism and industrial development in the region.


Story Source:

The above story is based on materials provided by Public Library of Science. Note: Materials may be edited for content and length.


Journal Reference:

  1. Erin Ashe, Janie Wray, Christopher R. Picard, Rob Williams. Abundance and Survival of Pacific Humpback Whales in a Proposed Critical Habitat Area. PLoS ONE, 2013; 8 (9): e75228 DOI: 10.1371/journal.pone.0075228

Cite This Page:

Public Library of Science. "Pacific humpback whale abundance higher in British Columbia." ScienceDaily. ScienceDaily, 11 September 2013. <www.sciencedaily.com/releases/2013/09/130911184718.htm>.
Public Library of Science. (2013, September 11). Pacific humpback whale abundance higher in British Columbia. ScienceDaily. Retrieved December 21, 2014 from www.sciencedaily.com/releases/2013/09/130911184718.htm
Public Library of Science. "Pacific humpback whale abundance higher in British Columbia." ScienceDaily. www.sciencedaily.com/releases/2013/09/130911184718.htm (accessed December 21, 2014).

Share This


More From ScienceDaily



More Plants & Animals News

Sunday, December 21, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Researchers Test Colombian Village With High Alzheimer's Rates

Researchers Test Colombian Village With High Alzheimer's Rates

AFP (Dec. 19, 2014) In Yarumal, a village in N. Colombia, Alzheimer's has ravaged a disproportionately large number of families. A genetic "curse" that may pave the way for research on how to treat the disease that claims a new victim every four seconds. Duration: 02:42 Video provided by AFP
Powered by NewsLook.com
Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Monarch Butterflies Descend Upon Mexican Forest During Annual Migration

Reuters - Light News Video Online (Dec. 19, 2014) Millions of monarch butterflies begin to descend onto Mexico as part of their annual migration south. Rough Cut (no reporter narration) Video provided by Reuters
Powered by NewsLook.com
The Best Protein-Filled Foods to Energize You for the New Year

The Best Protein-Filled Foods to Energize You for the New Year

Buzz60 (Dec. 19, 2014) The new year is coming and nothing will energize you more for 2015 than protein-filled foods. Fitness and nutrition expert John Basedow (@JohnBasedow) gives his favorite high protein foods that will help you build muscle, lose fat and have endless energy. Video provided by Buzz60
Powered by NewsLook.com
Birds Might Be Better Meteorologists Than Us

Birds Might Be Better Meteorologists Than Us

Newsy (Dec. 19, 2014) A new study suggests a certain type of bird was able to sense a tornado outbreak that moved through the U.S. a day before it hit. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:

Strange & Offbeat Stories


Plants & Animals

Earth & Climate

Fossils & Ruins

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins