Tag Archives: Malaspina Expedition

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Ocean exploration, from empire to empirical

Creatures in chloroform, musty maps, and navigation by brass instruments. That was ocean exploration 18th-century style. Nowadays it’s satellite links, mandatory life vests on deck, and flow cytometers measuring minute lifeforms from the murk below – a very different kettle of fish.

The España Explora. Malaspina 2010 exhibition juxtaposes two Spanish expeditions launched over 200 years apart: between 1789 and 1794, commander Alessandro Malaspina led Spain’s imperial survey of its global holdings. In 2010, the Spanish government launched the high-tech Malaspina expedition, an oceanographic venture far removed from anything the commander would be able to recognise.

Tucked into a pavilion at the Royal Botanical Garden in Madrid, the exhibit offers visitors a choice between immersing themselves in Spain’s imperial past, or its oceanographic present.

Malaspina would be familiar with the paintings and sketches of the indigenous people encountered by his two-ship expedition, which are exhibited in the historic exhibition. He might nod in recognition at the exquisite charts his surveyors drew of the coastlines and harbours, which served as Spain’s nautical highways and rest stops. And he would have reason to be pleased that some of the plants and animals collected by his hard-working naturalists, unpublicised during his lifetime thanks to political intrigue, are now before the public.

The artefacts are a kind of unintentional art, the by-product of busy empire-building. That empire was more concerned with politics than scientific legacy, however, as was Malaspina. His missives on the political structure of the empire and his ambitions for ministerial office offended prime minister Manuel de Godoy. The exhibit narrates Malaspina’s fall from grace  with fairness and illustrates his island imprisonment with a near-contemporary painting of the fortress where the scheming minister shackled him for years.

The exhibition’s modern displays focus on Spain’s 20th and 21st-century oceanographic research efforts. Videos at the exhibition reveal Spain’s modern research vessels at work on their ambitious tasks: studying climate change, Antarctic biodiversity, and the global reach of atmospheric pollutants.

One display case contains leftover sampling bottles and the label “The Treasure of the Malaspina Expedition: A Collection for the Future.” The genetic material the team collected sampled from as deep as 4 kilometres below the ocean’s surface are indeed a treasure. Few research vessels are equipped to send sampling bottles so deep, and scientists know little of what lives there. While Spain’s researchers and their partners are already analysing the data collected last year, they are also storing some of the samples in the hope that future technologies will unlock even more secrets. It’s a shame that such fascinating details are not mentioned in the exhibition.

The videos and photos are, however, an intimate glimpse at how dozens of scientists and technicians cruised the world for seven months last year gathering evidence of biological change. One stop-motion video from above the helicopter deck of the B.I.O. Hespérides is particularly gripping, showing sailors and scientists as they wander the ship on its travels. It makes the mundane mesmerising. Malaspina, with all his leadership experience, would likely respect biological oceanographer Carlos Duarte, of the CSIC’s Mediterranean Institute for Advanced Studies in Mallorca, for coordinating such a spectacular effort.

España Explora. Malaspina 2010 opened 2 February and runs until 31 March at the Royal Botanical Garden in Madrid, Spain.

This review first appeared in New Scientist’s Culture Lab blog: [html] [pdf]

Hesperides Cape Town

Spain’s ship comes in

Hesperides Cape TownHere’s my overview story about the Malaspina expedition for Nature’s news section. See the original at Nature’s website [html] or as it appeared in print: [pdf].

In the age of networked buoys and remote-sensing satellites, a global oceanographic cruise might sound like a relic from the golden era of exploration.

But the seven-month trek of Spain’s BIO Hespérides, which concludes next week when it docks in Cartagena, aims to deliver a global, comprehensive portrait of the ocean and how it is changing that the project’s backers say could not be assembled in any other way.

The Malaspina expedition, organized by Spain’s National Research Council (CSIC), set out on 15 December last year. Named after Alessandro Malaspina — who led a five-year survey of the Spanish empire’s natural history, economy and geography in the late eighteenth century — the €17-million (US$25-million) effort unites contributions from the Spanish Ministry of Science and Innovation, the Spanish Navy and the BBVA Foundation, the charitable arm of the BBVA banking consortium.

Most oceanographic voyages are shorter than the Malaspina expedition (see ‘Voyage of discovery’). By pouring resources into a single voyage, Malaspina’s planners hoped to gather global data sets in a wide variety of research areas, from the distribution of persistent organic pollutants to the discovery and genetic characterization of deep-sea life. They also wanted to follow the progress of carbon from the atmosphere as it sinks through the sea, gets captured in the planktonic food chain and eventually comes to rest on the ocean floor. And the scale of the effort has helped to attract international collaborators. Carlos Duarte, a marine biologist at the Mediterranean Institute for Advanced Studies in Esporles who led the mission, says that the approach was economical because loading instruments for one project costs less than changing instrumentation every month, as the research vessel would normally do.

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“There are several other ocean exploration cruises going on, but Malaspina is a much more substantial scientific effort,” says marine biologist Larry Madin, director of research at the Woods Hole Oceanographic Institution in Massachusetts, who is not involved in the expedition. For instance, the Atlantic Meridional Transect is a 16-year-old British project that is making comparable multidisciplinary observations, but is restricted to the Atlantic. The few cruises with a global reach are mainly sailing boats, such as Craig Venter’s Sorcerer II Expedition or the French Tara Oceans expedition, which carry fewer sampling instruments and limited on-board research facilities.

By contrast, the 82.5-metre-long Hespérides lumbered across the sea bearing laboratories staffed around the clock by two dozen graduate students and veteran researchers from many disciplines. Investigators analysed each day’s instrument data and plankton catch on-board, allowing them to devise new observations on the fly. After Japan’s Fukushima nuclear accident in March, for example, the team began tracking radiation levels in its seawater samples. The researchers also tracked temperature, salinity and levels of dimethyl sulphide, a plankton waste product that may influence cloud formation above the ocean. And they froze viral and bacterial samples taken from a depth of 4 kilometres, planning to sequence the microbes’ genomes.

Duarte says that the modern-day Malaspina expedition achieved a major objective before it even left port: it persuaded hundreds of oceanographers to agree on common research objectives and methods. This approach should allow scientists to compare cruise data wherever they were gathered, says marine biogeochemist Eric Achterberg of the National Oceanography Centre in Southampton, UK, who is not part of the expedition. He and other researchers say that conflicting observational protocols often prevent researchers from comparing data sets taken by different teams in different oceans. Future expeditions could use the Malaspina protocols as a model. “We’re making the same observations around the world,” says María de Oca Echarte, a researcher at the Mediterranean Institute for Advanced Studies who took part in Malaspina.

The expedition should also fill gaps in global oceanographic data. Some regions visited by the Hespérides, such as the southern Indian Ocean and parts of the southern Pacific, see fewer oceanographic expeditions than do waters closer to the powerhouse nations of oceanographic research such as Germany, Japan, the United States and Britain. Madin says that the cruise’s data could keep researchers busy for many years, noting that results from HMS Challenger, a pioneering research cruise in the late nineteenth century, are still used by scientists today.

A few preliminary results emerged during the cruise. Investigators found that some plankton was sinking to the depths much faster than had been previously observed. If researchers confirm the measurements, and if such sinking is widespread, the discovery could affect estimates of how fast the ocean can sequester carbon.

But several scientists contacted by Nature say they are waiting to see more of Malaspina’s data before they decide whether it has met its goals. The expedition won funding that could have gone to projects in other disciplines, and occupied all of the Hespérides ‘ research time this year, so Spanish researchers will scrutinize its results and debate whether to conduct future oceanographic research projects along the same lines.

Physical oceanographer Álvaro Viúdez of the CSIC’s Institute of Marine Sciences in Barcelona says that the overarching goal of evaluating “global change” in the ocean is “an exaggerated objective, outside the capacity of an expedition of this type”. He adds: “The most relevant data for evaluating global change in the ocean are those collected by the thousands of Argo buoys, which have been collecting data for years, together with satellites.”

Viral molecular ecologist Matthew Sullivan, a collaborator on the Malaspina expedition at the University of Arizona in Tucson, says that time will prove the expedition’s worth: “Buy-in will happen a year or so from now when papers start to come out. People will see the value.”

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Fieldwork: Close quarters

In the scientists’ lounge aboard the BIO Hespérides one evening last March, Jordi Dachs points at the schedule for the next day’s oceanographic observations. The Spanish research vessel is chugging across the Indian Ocean at a speed of about ten knots. “The storm has put us seven hours behind,” warns Dachs, an environmental chemist at the Institute of Environmental Assessment and Water Research in Barcelona, Spain, whose responsibilities as chief scientist on the ship include planning researchers’ time and instrument use. About two dozen scientists brace themselves against the rhythmic pitching of the vessel. “We might not lower the sampling rosette all the way on some days,” says Dachs, “to save time.”

His suggestion fills the room with tension. Lowering and retrieving the rosette can take many hours, but the water samples it retrieves from the ocean’s depths — as much as 4 kilometres down — hold the biggest potential for new discoveries. Sampling excursions in the Indian Ocean’s deep waters are relatively rare, making the samples particularly valuable.

“Isn’t this a deep-sea campaign?” snaps Celia Marrasé, a plankton ecologist at the Institute of Marine Sciences in Barcelona. Marrasé studies how dissolved and particulate organic matter sequesters carbon in the sea: skipping the deepest waters would affect her results. After more heated discussion, Dachs agrees to consider saving a few minutes on each of the 12 remaining days at sea by cutting time for all the observations, not just those from the rosette. The disgruntled researchers scatter, but cannot go very far: their bunk rooms open directly onto the scientists’ lounge.

In such a tight space, there is neither the room, the time nor the money to let differences escalate. “It’s very expensive to send people to these places and you want to get a lot of return,” says Albert Harrison, a retired psychologist from the University of California, Davis, who has studied the social factors that lead to success on space missions. For decades, NASA, the Russian Federal Space Agency and researchers in psychology and anthropology have examined how to achieve productivity in remote settings, gleaning lessons that are useful for any scientist who conducts fieldwork in close quarters.

Astronauts, polar biologists, desert geologists and ocean chemists all face similar challenges in their working conditions: relative isolation; overexposure to their colleagues; pressure to accomplish a lot of work in a short time with limited technical resources; and few options for escaping to family or friends outside work. If managed poorly, such circumstances can degrade a team’s cohesion, health and productivity. Scientists’ experiences, and the work of psychologists such as Harrison, suggest that researchers designing remote expeditions need to cultivate a sense of mission to guard against tough conditions, plan ahead with suitable schedules and equipment, practise working in field conditions and, above all, exercise patience when colleagues, instruments and experiences don’t live up to their initial hopes.

Forward planning

In the early years of human space flight, mission planners had huge expectations for how the astronauts would spend their precious days in space. “Historically there was a tendency to over-programme,” says Harrison. That was exacerbated by the enormous cost and limited flight time of each expedition.

On a smaller scale, the same thing often happens in fieldwork on Earth. When Tim Wright, a geophysicist at the University of Leeds, UK, led his first field trip to the Afar region of Ethiopia, he had a long list of multidisciplinary observations that he hoped to make, from collecting rocks to mapping fault structures. “We go in with these incredibly detailed plans: day one, go here; day two, go here,” says Wright. By the second day, “it’s usually ripped up and used to start the fire, because things take way longer than you anticipate”.

Trying too hard to achieve too much can harm the scientists and their data. Alberto Escribano, second in command on the Hespérides, is in the Spanish navy, and has first-hand experience of the consequences of teams pushing themselves too far. He explains that Spanish navy crews typically alternate 6-hour work and rest shifts on combat ships, but if they maintain this schedule for much longer than two weeks, the crew members become exhausted — and havoc can ensue. Sailors who are overtired don’t cope well with tasks that demand close attention, such as keeping the ship steady while instruments hang overboard. The same effect can wear down researchers, leading to squashed fingers, broken sampling bottles and fewer or lower-quality data. The solution for longer voyages, such as seven-month cruises on the Hespérides, is for each crew member to take shorter watches with longer recovery times.

“You want to avoid cumulative fatigue,” says Harrison. “Rest periods are not just perks — they help workers maintain their strength and high level of productivity.”

Conflicting research goals can overload an expedition’s agenda and put researchers under stress. The Hespérides expedition led by Dachs is just one leg of a Spanish National Research Council (CSIC) circumnavigation of the Indian Ocean that is trying to balance the research objectives of six disciplines, including biogeochemistry, microbiology and environmental chemistry. The ship has to be stationary for researchers to use some instruments, such as the sampling rosette, but has to be moving for others, such as a pollution-sensing torpedo. Still other observations can be done only one at a time, to prevent cables from getting tangled. The resulting Byzantine schedule has, at times, left some researchers on the Hespérides working around the clock, sleeping only in short stretches, and others keeping a more comfortable 8 a.m.–3 p.m. schedule.

Scheduling of data collection involving the sampling rosette caused conflict on the BIO Hespérides. -L. Laursen

Practice makes perfect

The success of an expedition can hinge on compatibility — or lack thereof — between team members, so it is important to choose companions carefully, if possible. Wright says that on his field trips in Afar, the most laid-back people cope best with the conditions, and he takes this into account when selecting graduate students and hiring new members of the team. He counsels postdocs and investigators to discuss such considerations before deciding which graduate students or colleagues to invite on their own expeditions.

Researchers who aren’t at liberty to select their field companions should consider arranging a shorter, simpler ‘test’ trip ahead of time, so people can learn to work with each other before the big commitment. Gloria Leon, a psychologist at the University of Minnesota in Minneapolis, says that space agencies often test teams of astronauts for compatibility by taking them on short field excursions or even road trips, exposing them to the tight spaces, tough field conditions and even body odour of a real adventure. Escribano endorses this kind of advance testing. “If I had to screen people for this, I’d lock them in a room and shake it around for a while,” he says. He recommends watching for stress-induced irritability or self-imposed isolation, and offering team members extra attention to help them deal with the stress, if they need it (see ‘Tips for far-off fieldwork’).

Box 1: Before you go: Tips for far-off fieldwork

A few precautions will help to promote an efficient, productive and comfortable research expedition.

  • Cultivate a higher sense of purpose — you’re learning how plankton trap carbon, not just filling dozens of bottles with sea water.
  • Make your quarters habitable. People on different shifts shouldn’t have to share the same bunk.
  • Test your equipment. The field is not a good place to learn how it works.
  • Test your team. Get to know how they will respond to field conditions, and head off any problems that arise.
  • Remember to rest your body. In the long run, your work will be better.
  • Build downtime into the schedule; if delays don’t use it up, new opportunities will. For example, after the meltdown at the Fukushima Daiichi nuclear plant in Japan in March, the scientists on the Spanish research vessel BIO Hespérides began to take previously unplanned measurements of radiation levels.
  • Promote open communication to let team members brainstorm or just blow off steam. L.L.

Even if a research group doesn’t have the luxury of running a trial trip, members can still benefit from working together in advance and trying to sort out any interpersonal difficulties, says Leon. The sole female member of one group of polar explorers that Leon studied complained that the men in the team competed with each another and all vented to her, giving her a disproportionate and unexpected emotional burden. Had she been able to anticipate that dynamic, the explorer might have had a chance to address her companions’ behaviour beforehand and avoid undue strain during the trip.

Keep your patience

Once a researcher is out in the field, he or she should recognize that not everything is controllable. For example, on one occasion, the Hespérides experienced four straight days of rough seas south of Madagascar, and Dachs’s team couldn’t lower the sampling rosette at all. Such things happen on all expeditions. “Sometimes you just can’t collect data,” says Wright. “There’s no point in getting stressed. That isn’t going to make anything happen any faster.”

Focusing on a long-term career or scientific goal can help researchers to cope with the stress of fieldwork, says Leon. She has learnt that the people who succeed on expeditions to the poles — whether they are scientists, sports enthusiasts or explorers — are able to tolerate the conditions because they are trying to achieve something important to them, such as being the first people to ski to the North Pole. Similarly, scientists should keep in mind the scientific problems they will be able to solve, or the papers they will publish, when they’re staying up all night to monitor instruments or bathing from a bucket in the desert.

Crew members have to cooperate to overcome difficulties on long voyages. -L. Laursen

Shrugging off the frustration is easier for old hands than for expedition novices such as Patricia Puerta, a marine-biology graduate student at the CSIC’s Mediterranean Institute for Advanced Studies in Majorca, Spain, who is staking her PhD on plankton data collected on the Hespérides. On Puerta’s first cruise, loose equipment on deck broke her incubation tanks during storms. “My stuff was cannon fodder,” she recalls, and she worried that she wasn’t making enough progress on her PhD. By the second leg, Puerta had found better ways of rigging her incubation tanks to save them from damage. She also learned the value of patience, she says. “Delays still bother me, but now I’m more accepting.” Puerta realized that not every sample was crucial.

Part of becoming an accomplished fieldworker is learning to delegate responsibilities such as planning the logistics of an expedition, and to rely on experts to handle things that the researchers can’t do as effectively themselves, says Wright. In the Afar, that has meant trusting local scientists or technical staff to help install instruments, negotiate maintenance with Afaris and rent camels for transport. “We couldn’t do any of this without our local colleagues,” says Wright. “You can’t have your eye on all of the balls that are in the air.” For Puerta, that meant accepting practical assistance: when her fraction collector broke, preventing her from taking automatic water samples overnight, she didn’t, in this instance, have the technical skills to fix it, and had to trust that someone else on board did. “It can make people feel helpless,” says Escribano, who, it turned out, travels with a silver briefcase of electronics equipment and was able to diagnose and repair Puerta’s instrument.

Seasoned field scientists must also learn to deal with extended stretches of discomfort and boredom. Breaking the routine on the ship can help to distract people from the discomforts, says Escribano. He has used costume contests and card games to entertain the research team. Others have different ways of dealing with the relentless presence of others, says Leon; she recalls a polar explorer who would “dig real deep in her sleeping bag at night to cover her head” to secure some respite from her companions.

Technology can also mitigate the monotony of fieldwork. Satellites allow team members to ease homesickness by contacting family and friends by phone and through e-mail and social-networking sites, even if only for limited amounts of time. Communications technology can also facilitate scientific decision-making, says Dachs. “On a cruise, you have to react fast, and we use e-mail to consult colleagues on land when we have a problem or a question,” he says. From the Indian Ocean, he was able to talk to the other senior expedition planners at research institutes throughout Spain and work out which observations to trim. Not everybody was happy, but everybody was in the loop, and in the end they didn’t have to cut quite as many observations as Dachs had feared.

Dachs has one more trick up his sleeve to boost morale: creative time-keeping. The day before arriving in Perth, Australia, for a short break in the cruise, the Hespérides approached its offshore meeting point — where a local harbour pilot helps guide the ship into port — earlier than announced. “When you make the cruise schedule,” says Dachs, “you always underestimate the ship’s speed.”

This feature originally appeared in Nature’s careers section [html] [pdf]

I’ve posted more photos in an experimental gallery here: Malaspina expedition gallery