Showing posts with label Killer Whales. Show all posts
Showing posts with label Killer Whales. Show all posts

Sunday, August 22, 2010

Baby Killer Whales, Their ID Numbers, Their Names, And Their Parentage


Ken Balcomb, CWR founder.
By K.C. Balcomb
 22 August 2010
            The Southern Resident Killer Whale (SRKW) population underwent a genetic bottleneck sometime between one and two-and-a-half whale generations ago that has resulted in a very small and fragile effective population size – only about 25 whales currently parent any offspring, while the remaining 60 or so whales are either too old or too young to contribute to population growth. That fact alone makes every baby whale precious, or at least it should be precious, to everyone on this planet that cares about the survival of these charismatic icons of the Pacific Northwest. Being born is one thing, surviving in the modern world is another
          My goal is to encourage our human society to make it possible for the effective population size of SRKW’s to grow during the current generation, and for the foreseeable future. Too often, for too long, and too recently we have seen it decline. In order to see increase we must give priority to allowing the whales sufficient food = salmon to survive, year-round, and that amounts to a lot of fish.

           At the risk of designating a baby whale an ID number or a name when there is a good chance that it will not survive, and thereby perhaps offending some and wasting numbers, I am going to exercise my prerogative and name a few:

Star
            In J pod, there was a new calf born in November 2009 to a sixteen-year old new mother designated J28. I earlier designated the new female calf J46 and called her “Star” for the starring role I hoped she would play in inspiring the public interested in conserving the fish resources needed for the entire SRKW population (and for humans).
Looker
            






 Also born into J pod in January 2010 was another new calf, this time a young male whose very young mother is twelve-year old J35. I designated this new male calf J47, and now call it “Looker” because it frequently (and delightfully) raises its head high above the water as if looking around when swimming alongside its mother.
            
Speedy





 In K pod, there was a new calf first seen in February 2010 with an experienced mother K12, who is also a grandmother. Virtually every time we see and photograph this new rambunctious baby whale it is racing alongside its mother, so I have called it “Speedy” and have designated it K43 - the newest member of slow-growing K pod.
Hope
           



 In L pod, a new calf appeared in the summer of 2010, itself an unusual event because most new SRKW’s are born in winter months. The births typically occur in mid-winter seventeen months after the party times of historically abundant summer salmon migrations to these inland marine waters. 
          Conception of this new calf, designated L115, must have occurred around January or February 2009 when all three pods made an unprecedented mid-winter appearance off Victoria (see Encounter 3, 2009 CWR webpage). The mother is L47, who has lost her previous four consecutive babies (L99,L102,L107,L111) since giving birth to her two successful daughters (L83 and L91), in 1990 and 1995. Without yet knowing the sex of L115 the newest calf of L47, I am going to call it “Hope”, for obvious reasons. “Toast” was submitted, but it is not very optimistic for a whale name when we hope it survives.
           
Molly
    
        L113 was born in the autumn of 2009 to fourteen-year old first time mother L94, and she is healthy and doing well as of this writing in late summer 2010. This year has been a relatively good year for salmon in the local waters, so we are wishing all is well for her. I am going to call her “Molly” after a very good friend whose ashes were spread as L113 and her extended family swam nearby in Haro Strait this summer.
            


Victoria





 Two other recent L pod calves are worthy of mention: L112 born to L86, probably in January 2009 and first documented in the afore-mentioned Encounter 3 of 2009 when she was less than a month old; I am going to call her “Victoria” for the beautiful city waterfront where she was first seen. [Hold your nose until the sewage issue is resolved! Maybe we should call her “Stinker”?]

Flapper






And, last but not least, we have L110, a very rambunctious young male born to a young mother, L83 first daughter of L47. We first saw him in August 2007, still showing evidence of fetal folds from recent birth; but, by October he had clear evidence of a mark that will no doubt remain with him for the rest of his life: a large flap of his upper right lip had been torn askew and was protruding awkwardly from the starboard side of his face, perhaps from an encounter with the steel leader of a fishing line. He also now has evidence of a bulbous tooth abscess just in front of the flap. I am going to call him “Flapper”, in anticipation that a bit of Aussie humor will be good for him. He probably does not mind his easily remembered name, though others might.

            My apologies to those who may be offended by the names and numbers I have given these whales. I’ve given the subject a fair amount of thought over three decades, and have refrained from giving them meaningless, stupid, or unpronounceable names. You may call them anything you wish, but I have been keeping the official records of these whales from the beginning of their study, and these names and numbers are what we will write in our books. The paternity paper is in preparation and due out soon; and it is likely to be at least as interesting reading, if not downright scandalous. Here’s a little teaser: the whales apparently live up to the motto: “Old Guys Rule” and you can guess what that is about.

            We will discuss the reasons for the SRKW population bottleneck in another writing. Meanwhile, do whatever you can to promote healthy wild salmon populations, particularly Chinook salmon, in the Pacific Northwest if you would like these babies and the SRKW population to survive.

           

R.I.P., L114
  Another new calf in L pod, L114 born to L 77, first appeared in February 2010, but it did not survive to summer. No name, but only a number for its tombstone in our records. (see Matriline guide on our website).

Photos by the author, Ken Balcomb

Monday, January 25, 2010

Why Sound Is So Important In The Marine Environment


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Without the ability to optimize the use of sound, many marine creatures would be unable to exist. In the ocean environment; sound takes over where sunlight leaves off.

Find out more here as we explore this subject.

Friday, January 1, 2010

Sunday, December 13, 2009

Have A Heart SeaWorld, And Let Corky Go Home


Picture It is time to bring the captives home, read more on our Seattle P.I. blogsite!

 
 
 
 
 
Corky (Courtesy OrcaNetwork and OrcaLab)

Sunday, November 22, 2009

Where Do Orcas Find Drinking Water?

Orcas are beautifully adapted to life in the marine environment, but unlike fish, they are not able to meet their water needs by drinking seawaterFind out how they meet their needs here.

Sunday, November 1, 2009

Vote For Orcas and Salmon

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Photo by Stewart Macintyre
Please consider the orcas if you have yet to vote. I-1033

Wednesday, October 7, 2009

Senator Murray is Beginning to Listen to You on Orca issues



If nothing else, the proposed Killer Whale Vessel Regulations have served to show how strong our community is in supporting the Southern Resident Orcas. Please read the blog at the Seattle P.I. for more information:
http://blog.seattlepi.com/candacewhiting/


Wednesday, September 23, 2009

Farmed Salmon Are Really Bad News - For Us, for Wild or Captive Orcas, and for the Environment


Included in a serving of farmed salmon are 14 known toxins in much greater concentrations than wild caught salmon.

Click on over to our blog at the Seattle Post-Intelligencer to learn why you should avoid eating this product, and why fish farming is harmful to the orcas (including the captive orca "Lolita"):

http://blog.seattlepi.com/candacewhiting/

Thursday, August 27, 2009

Orca Cultures


While researching how our southern resident orcas hunt and capture fish, I came upon an interesting article that shows that the northern resident orcas (which live in British Columbia waters, generally north of the Fraser River) alter their hunting strategy depending upon prey availability, and that this is tied into large scale climatic variability. But when I checked to see if the southern residents showed a similar pattern, I encountered a really different, and surprising pattern.

According to a thesis, the local orcas don't seem to change their strategy in relation to climatic changes, but do extend the range and effort required to find adequate prey when it is scarce. And not all the pods showed the same changes in the same circumstances.

What is surprising is that the orcas did not concentrate their hunting efforts where salmon were most abundant, as measured by the capture rate by fishing boats. In other words, where fishermen had the most success was not necessarily where the orcas chose to hunt...although it became a 'chicken or egg' issue - did the fishermen have more success because the orcas weren't there? Or were there other features of the environment that were less desirable for the orcas at those places? Is there an aspect of the killer whale's culture at play, since they are different even from their "cousins" north of the border?

I looked at some other populations of fish-eating orcas, and again I found interesting variations between areas. When hunting herring, a population of orcas in Norway has

Picture
School of Herring (Creative Commons Photo)
been observed to keep schools of the fish near the surface. The whales flash their white undersides towards the fish and emit bubbles, which has the effect of driving the fish school to form into a 'ball'. The orcas then strike at the herring school with their tails, stunning and killing the fish, which the whales then eat one at a time. (I had no idea that herring can get to be 18" long!)

In Iceland, another population of orcas feeds very similarly upon herring, but in addition to emitting the bubbles the whales produce a loud droning type sound, possibly to help confuse and further compress the fish school (for video and a soundtrack, go here).

In the Russian waters of Avacha Gulf, orcas force tight schools of mackerel in a similar fashion, but then take turns swimming into the middle of the fish 'ball'.

In and around the Mediterranean Sea, a population of orcas hunts bluefin tuna (which are huge, 620 lbs is spawning size) by chasing them until the fish becomes exhausted...and in more recent times the whales have learned how to strip a fish from fishermen's long lines as the tuna are brought up from depth. Annoying to the fishermen, perhaps, who receive thousands of dollars per fish, but a sensible adaptation from the whales' point of view.

The following is from comments sent to me by Howard Garrett (see previous post), of OrcaNetwork, which speaks to the varied ways the orcas live and find fish:

When Rendell and Whitehead wrote Culture in Whales and Dolphins (2001) they summed up the findings that each orca community eats its own severely restricted diet, uses their own discrete repertoire of vocalizations, and maintains their own prescribed mating practices. The paper, published in the Journal of Behavioural and Brain Sciences, established that: "The complex and stable vocal and behavioural cultures of sympatric groups of killer whales (Orcinus orca) appear to have no parallel outside humans and represent an independent evolution of cultural faculties."

But they didn't want to venture any guesses about how orcas communicate, or how they transmit their cultural rules and traditions. They realize that "...understanding process (cultural transmission) is crucial to our understanding of the product (culture)" but they just don't even want to talk about it: "...no attempt is made to deduce what particular form of social learning underlies the observed patterns." And…"we know virtually nothing about the actual learning mechanisms cetaceans employ."

Then they hint at what they suspect: "Human culture is intimately linked to both language and symbolism, but there is currently no empirical basis for discussing the role or non-role of language and symbolism in cetacean culture …"

And they say: "Cetacean cultures appear to possess other attributes that have otherwise been restricted to humans. In particular, we are aware of no phenomena outside humans comparable to the distinctive, stable and sympatric vocal and behavioural cultures which appear to exist at several levels of killer whale society."

Over the next month we will continue to explore the intelligence and culture of the orcas as we discuss the proposed guidelines for increased protection of our locally endangered population.

Tuesday, August 11, 2009

Is The Government Doing Its Job To Protect Captive Whales And Dolphins?


Hopefully the USDA will inspect and measure the concrete bowl where Lolita has lived the past 39 years and will find it unlawful under the Animal Welfare Act...
Those words from Howard Garrett's post really got me wondering about how it is possible that the governmental agencies responsible for animal welfare are able to turn their backs when it comes to the Miami Seaquarium and the substandard tank where "Lolita" (the orca taken from L-pod) is forced to live.

The USDA arm of the government that is responsible is the Animal Plant and Health Service (APHIS). The Regulations read: 9 C.F.R. Sec. 3.104 - Space Requirements -
The primary enclosure for a Killer whale (Orcinus orca) must have a minimum horizontal dimension of no less than 48 ft. in either direction with a straight line of travel across the center.

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Dimensions of "Lolita's" tank. Photo courtesy Orca Network.
Lolita's tank is a mere 35 feet from the front wall to the slide out barrier. At its deepest point in the center the tank is only 20 feet deep. She is about 22 feet long.

In 1995 the Humane Society of the United States filed a formal complaint against the Seaquarium regarding the substandard size of Lolita's tank. The Animal Plant and Health Service (APHIS) has yet to act. Fourteen years later, she is still in the substandard tank.

Who is the Animal Plant and Health Service? Their mission statement says: "Protecting American agriculture" is the basic charge of the U.S. Department of Agriculture's (USDA) Animal and Plant Health Inspection Service (APHIS). APHIS provides leadership in ensuring the health and care of animals and plants. The agency improves agricultural productivity and competitiveness and contributes to the national economy and the public health.

The 1994 Marine Mammal Protection Act amendments eliminated NOAA Fisheries jurisdiction over captive care and maintenance of marine mammals held for public display, placing it under the exclusive jurisdiction of the Animal Welfare Act administered by the Department of Agriculture, Animal and Plant Health Inspection Service (APHIS). However, the MMPA requires that NOAA Fisheries maintain the captive Marine Mammal Inventory Database.

The 1994 Marine Mammal Protection Act amendment concerning captive marine mammals:

NMFS and FWS will regulate the taking of marine mammals from the wild under the MMPA, while subsequent care and maintenance of captive marine mammals held for purposes of public display at registered or licensed facilities will be regulated by the Animal and Plant Health Inspection Service (APHIS) of the Department of Agriculture under the Animal Welfare Act (Pub.L. 89-544, as amended). For the taking and importing of marine mammals for public display, permits will be issued only when [1] the effect of the take or importation on wild populations is considered, [2] the method of the taking is humane, [3] an institution is registered or licensed under the Animal Welfare Act (AWA), [4] the institution offers an education or conservation program based upon professionally recognized standards of the public display community, and [5] the institution maintains facilities that are open to the public on a regularly scheduled basis. Although NMFS or FWS must be notified at least 15 days prior to the sale, export, or transport of a captive marine mammal, and NMFS and FWS must maintain an inventory of captive individuals, a permit or other authorization is no longer required to obtain, hold captive, transport, transfer, purchase, sell, or export marine mammals that are being held captive for public display purposes when animals move between facilities that meet the permit criteria. In addition, export of marine mammals is prohibited except as explicitly provided for in the Act.

So why doesn't the USDA do anything to enforce the law with respect to "Lolita's" living conditions?

Tuesday, July 7, 2009

In Respect for Michael Jackson Who Performed "Will You Be There" for the Movie "Free Willy"



In Memory of Michael Jackson, who supported animal causes.

Candace Calloway Whiting