Laurie Murison’s top ten quirky whale facts!

1. Sperm whales wear lipgloss! You know that squid are luminescent and glow in the dark, right? And you know that sperm whales eat squid? Well, sperm whales have been seen with glowing lips as if they are wearing squid-lipgloss! What is not yet known is whether this is an entirely unintentional consequence of their diet or whether the whales are harnessing their fashionable new look for a more serious purpose. “It is possible that they use their luminescent lips to attract and catch more squid. If a sperm whale hangs upside down in the water, the squid would see the light shining upwards and may swim down to investigate, thinking it is food or a mate.” And then of course the squid will become just one more mouthful for the pouting sperm whale.

2. Blubber (which lies underneath a whale’s skin) has more weird and wonderful properties than you might at first give it credit for. You can probably guess that it keeps a whale warm, helps with streamlining by ironing out any bumps, and can be used by the whale as food if absolutely necessary. But, you may not have known about its amazing elastic band properties. Blubber is stretchy and, just like an elastic band, if you stretch it out and then let it go, it will ping back into shape again. “When a whale swims, its tail propels it forwards by moving up and down. As the tail goes up, the blubber on the underside of the tail stretches, so as soon as the whale stops moving its tail up, the blubber pings back, pulling the tail back down with it. Blubber requires less oxygen than muscles, so having blubber to do half the work conserves oxygen.” Very useful for an animal that spends long periods of time underwater holding its breath!

3. Ever wondered why some whales majestically show off their tail flukes when they dive and some don’t? Well it’s because some whales are sinkers and some are floaters! “Have you ever noticed how some people tend to naturally float in a swimming pool and some people sink? With whales, certain species are naturally buoyant and others are not. Finback and minke whales, for example, are sinkers, so they do not need to throw their tail in the air before they dive. Humpbacks on the other hand are floaters, so they need all the help they can get. They have to make a real effort to dive down deep, so they throw their tail up to give themselves maximum thrust.” So if you ever go whale watching and want to see a whale’s flukes, make sure you choose a location where you can see a floater and not a sinker.

4. Different whale species sometimes hang out and play together. Last week in the Bay of Fundy, finback whales and Atlantic white-sided dolphins were doing just that. In one small area there were about three groups of fin whales with three groups of dolphins escorting them. The fin whales who usually dive for four minutes or more were only diving for about two minutes; matching the dive time of the dolphins. As they all came to the surface, the dolphins bow rode in front of the whales and the whales emitted loud trumpeting calls. “This was their equivalent of screaming in high-pitched excitement, they are not normally vocal, at least in the spectrum that us humans can hear them.” More and more whales appeared, manoeuvring themselves to join the party, and the dolphins completely ignored our boat as they were having so much fun with the whales.

5. Whales can mistake plastic for food and eat it, which may harm or even kill them. For example, a sperm whale was found dead after ingesting a weather balloon. Imagine swallowing a few plastic bags yourself… they may manage to make it through your body and come out the other end, or they may stay in your stomach, plugging it up so that nothing else can get in. “Helium balloons from Massachusetts, in the middle of the North American continent, have been tracked and found far out in middle of the ocean. Every simple little action can have huge consequences!”

6. There is more than one way to get a mouthful of plankton. Finback, minke and humpback whales eat plankton… So do right whales. But they go about it in a different way. The fin, minke and humpback whales are gulpers, or lunge feeders. “They take one big gulp of water and food, shut their mouth and then expel the water out through the baleen while retaining the food inside.” (These whales have baleen instead of teeth and they use it like a sieve; it allows water through, but not food.) Right whales on the other hand are skim feeders. “They swim slowly along, with their mouth open. Water and food enters through the front of the mouth where there is no baleen, then the water escapes through the baleen at the sides of the mouth, while the food remains inside.” In this way, skim feeders are able to feed continuously but can only eat smaller prey, as anything large like a fish would have the strength to swim right back out the front of their mouths. Lunge feeders on the other hand can on occasion go after larger prey such as herring. “Right whales can skim feed at the surface and underwater, just as lunge feeders can gulp at the surface or underwater. When eating underwater, lunge feeders only dive for 4-12 minutes gulping down big mouthfuls of food, whereas skim feeders stay underwater for up to 30 minutes skimming slowly and continuously along.”

7. A whale’s skin is quite peculiar. It is very thick (in right whales it is a centimetre thick!), so thick that if it were to lie horizontally like our skin does, the whale would not be able to feel touch or exchange food and waste products because its blood vessels and nerve endings would not be able to penetrate it. Instead, a whale’s skin lies vertically, like microscopic fingers hanging down. An added bonus to this structure is that it aids streamlining. “Water is rather choosy, it likes to travel in waves, and does not like to travel in a flat motion. The texture of the whale’s skin encourages the water to flow over it in a wavy motion.”

8. Toothed whales, such as dolphins and porpoises, have to learn from a young age to eat their fish the correct way. “Everything on a fish is designed for streamlining them in the water: try stroking a fish, you’ll notice that their scales, gills and fins only stick out if you stroke them backwards.” Now imagine trying to swallow a fish backwards… urgghh, yes, you might end up with a fish stuck in your throat and, if a porpoise does not learn the correct way to eat fish quickly, it may end of up with a throat full of choking-fish too!

9. Whales of today live in urbanised, industrial cities… Or at least, the ocean equivalent of urbanised, industrial cities. Their world is subject to noise pollution, chemical pollution, constant traffic, sonar and all sorts of crazy human antics. Even planes high up in the sky add to the noise level which they have to contend with. “When air traffic around the world was stopped on September 11th 2001, equipment measuring noise level in our oceans showed that they had suddenly gone very quiet indeed.” Unfortunately for the whales, they cannot call the anti-social behaviour police and complain about our actions. Instead, right whales are shouting louder than they did forty years ago to make sure they are heard. Research is in its preliminary stages to determine whether whales are currently suffering from stress, (which can be detected by measuring hormone levels). However, “Research already carried out on land has proven that animals living in urban environments are more highly stressed than their cousins living in natural environments”, so it would be reasonable to assume that whales of today may also be living with a higher degree of stress. Probably not very helpful for their sex drives which, considering they are still trying to recover from our past misdemeanours towards them, is a problem they could really do without.

10. Whales cheat! If you thought migration was a simple clear cut process, with whales moving from feeding area ‘A’ to calving area ‘B’ back to feeding area ‘A’ with everyone obeying the rules… then think again! “Whales in the northern Atlantic do not follow the rules. Whether they are a finback, humpback or right whale, they can do unexpected things.” A right whale, for example, might decide to pop over to Norway or the Azores for a few months, even though they have never been there before, and any males or females not involved in breeding and calving one year, may decide to stay in a feeding area such as the Bay of Fundy, or go on an excursion. “Right whales go walkabout sometimes, they might appear at Cape Cod or elsewhere in the Gulf of Maine, traveling their own little circuit.” You can never be completely sure where a whale may or may not pop up next, which of course makes the conservation of them and their critical habitats even more tricky.

From my experiences of Laurie I would say you can never quite be sure where she will pop up next either… One moment it may be on a whale watching boat, the next at a teenagers holiday camp, then at a lighthouse, and then maybe in the bathroom with a power tool in her hand… Laurie’s life is a constant, tremendously impressive, juggling act. And it is her supreme powers of multi-tasking which will form the subject of my next post about her…

Laurie Murison – whale researcher turned conservationist

In an ideal world, Laurie would be solely a researcher. She would spend her days out on the ocean studying the animals which she loves and sharing that passion with others. When Laurie is on the water, “I immediately calm down and de-stress. It is such a beautiful yet potentially hostile environment. There is always so much to learn accompanied by unexpected surprises along the way.”

But, unfortunately for us all, we are not in such an ideal world. As Laurie says, “When our population is on the increase so dramatically, how do we manage those people so that we can protect all the wonderful species around us? If I was a pessimist, I would not get out of bed in the morning, we have changed our earth so much, 90% of our megafauna is gone from our oceans…”

Over the years, the topic of our environment has waxed and waned in popularity; sometimes it is at the forefront of thinking, at other times it is forgotten. When Laurie first came to Grand Manan on the 1980′s, environmental matters were of great concern. Through working with whales, in particular the highly endangered North Atlantic right whale, Laurie has had no choice but to witness, and become involved in combating, our collective negative impacts on this planet. “When something happens to a whale you have seen many times and come to know, and when you have to handle the consequences, you start to think about it in a different way. You see the problems and you try and deal with them, while also trying to live yourself!”

On a personal level, Laurie is pro-active, she thinks about how she can be effective, about what can and can’t be done, and how she can live without impacting negatively on her environment. At an organisational level, Laurie’s work as executive director of Grand Manan Whale and Seabird Research Station (GMWSRS) has inevitably included conservation efforts. Laurie is intensely aware of the balancing act that this requires. To marry together the needs of the environment with the needs of people requires compromise. Often there are different groups involved with opposing agendas and conflicting needs, and somehow these have to meet. As Laurie says, “All sides need to understand what is going on, and then bring to the table whatever is most important. Trust is an important factor, as is a willingness to find a shared language to communicate with. The process requires a collaborative rather than dictatorial approach. From that we can hope to find a happy medium.”

The harbour porpoise release program is one such initiative which Laurie and her team created. When Dr. Gaskin began working in the Bay of Fundy very little was known about harbour porpoises, they are after all rather shy, elusive creatures. The easiest way for Dr. Gaskin to find individuals for study and tracking purposes was to collect one from a herring weir, as it was known that harbour porpoises could become trapped in weirs. At the time, the easiest way for a fisherman to deal with this situation was to shoot the porpoise to prevent it disturbing the herring and facilitating their escape. By the late 1980′s concern grew about the harbour porpoises’ population and it was acknowledged that gillnet fishing, plus to a lesser extent herring weirs, posed a significant threat to the species.

In 1991, GMWSRS developed a formalised release program which continues to this day. It involves fishermen and rescue team working together using a seine, or net, to free the porpoise without losing any of the fish. The team drops the seine into the weir to encircle the porpoise and slowly bring it to the surface. From there, the rescue diver can “Reach in and grab the animal and pull it free of the weir”. Specially light mesh seines were developed to decrease the risk of harm or death to the animal during release.

Over the years this program has become almost instinctive. Three generations of fishermen have been involved in the scheme and they are all trained so that they can, if needed, carry out the release independently. The ideal however is to have a team of between 4-5 people. This additionally allows data to be collected, provided the porpoise is calm and not under stress. The porpoise is brought on board a boat where the team can collect blood samples, monitor heart beat, take physical measurements, record sex and tag the animal. In this way individuals can be identified, and blood profiles can be used for such purposes as rehabilitation.

Each summer, on average between 20-50 animals have been trapped and subsequently released from any given individual weir, with the team dealing with as many as 2-3 releases per day. The lowest number of releases in one summer was eight and the highest has been 300. GMWSRS helps pay for any costs the fisherman incurs. Laurie recalled one particularly memorable release of a mother and calf where “Once we got them on the boat, both mum and baby wriggled themselves around so that could be close to each other”.

This program, which runs so smoothly today, was initially “A challenge to establish”. Laurie and her team had to spend time working with the fisherman and building up a relationship of trust. “You have to remember that the fisherman is going to be economically driven more than animal welfare driven. The solution has to be cost effective for him.” The harbour porpoise release program is unique and remains to this day a rare example of biologists and fishermen successfully working co-operatively together.

GMWSRS also inputs into the Canadian North Atlantic right whale recovery plan. In 1997 WWF and DFO (Department for Fisheries and Oceans) initiated this plan in response to the desperate plight of the North Atlantic right whales.

Because of federal budget cuts, NGO’s have carried out much of the work. A major achievement was the shifting of shipping lanes within the Bay of Fundy. Ship collisions are recognised as a cause of mortality amongst whales and with a species whose population in the late 90′s numbered less than 300, the death of just one whale is hugely significant. Shipping lanes had first been set in 1980, before any research had been carried out on right whales. In the 90′s it was discovered that the lanes had been set directly across a critical right whale habitat area. Work was carried out, headed by Dr. Moira Brown, to assess which areas had the greatest probability of a whale/ship encounter. As a result of this, shipping lanes were moved and narrowed. This is the first ever time that shipping lanes have been changed to accommodate the needs of a whale species.

This model has since been used elsewhere to reduce ship collisions. It is by no means perfect; whales do not follow protocols, they still have to cross shipping lanes, and if food sources shift, so will they. But it is an example of the type of compromise Laurie describes as being necessary. GMWSRS inputs this work with their cataloging of whales. Laurie’s research entails photo ID-ing individual right whales. These are sent to the New England Aquarium, which holds the catalogue for right whales. This data creates a vital ongoing picture of where the whales are, at what times of year, what distances they travel, where critical habitat and feeding areas are etc. Without this kind of information it would be impossible to assess the best place for a shipping lane. Photos of calves are also key to tracking them for the rest of their lives.

Throughout the years, a major part of Laurie’s conservation efforts have focussed on education. Convincing fishermen to free harbour porpoises requires education, working with shipping companies to change shipping lanes requires education, encouraging the general public to change their everyday habits requires education… In particular Laurie has “Got the word out about North Atlantic right whales and why they need our help”, and provides information, articles and training on codes of conduct with right whales. She has worked with fishermen, companies, the general public, whale watchers and whale watching companies. For example, in 2006 there was a high prevalence of right whales in the ferry route lane between Grand Manan and the mainland. Laurie worked with boat captains on how to spot them and how to avoid them as well as explaining why they are so vulnerable.

It is easy for a researcher to care about whales; as soon as you live each day studying an animal, you cannot help but become full of admiration for them. After all, understanding breeds love breeds action. Good education therefore requires engaging people with animals in a way that awakens their sense of inquisitive wanting-to-know-more, and to care and to act. Having just watched Laurie deliver a talk to teenagers I was struck by the quirky, intimate stories she has to tell about whales and the passionate yet grounded and straightforward style of her delivery.

This gave me an idea… I have asked her to tell me her top ten most quirky facts about whales… And these tantalising tit-bits of knowledge will become the subject of my next post about Laurie…