Dr. Marie Auger-Méthé has been awarded one of the six UBC Killam Accelerator Research Fellowships provided annually by the Killam Foundation through a bequest from the late Dorothy J. Killam.
Dr. Auger-Méthé is an Associate Professor, and Canada Research Chair (Tier II) in Statistical Ecology, jointly appointed in the University of British Columbia’s Institute for the Oceans and Fisheries (IOF) and Department of Statistics. She is a global leader in the development of novel statistical methods that advance the understanding of statistical animal ecology, and allow for the formulation of effective management and conservation policies. These methods provide unique insights into the ecology, movement, health, and behaviour of animals of ecological, economic, and cultural significance.
The Killam Accelerator Research Fellowships (KARF) promote research excellence and support early-career scholars by providing time and resources for them to focus on their research, to enable them to have a significant impact in their field of scholarship, and to launch them into the next stage of their career.
Dr. Auger-Méthé’s KARF project will enable her to create tools that recovery teams can use to identify Critical Habitats quickly and accurately, facilitating the protection of such habitats via governmental policies (e.g., recovery strategies and marine protected areas). She will also create an open-access repository of Critical Habitat information that can be used by NGOs, First Nations, and other groups when advocating for the protection of imperilled species. Such work is urgently needed to address biodiversity loss and generate systematic ways of meeting Canada’s conservation goals. To demonstrate the usefulness of these tools, she will apply them to marine mammals and seabirds data in areas with increasing shipping and energy developments.
Dr. Curtis Suttle, professor in the Institute for the Oceans and Fisheries, Microbiology and Immunology, Earth, Ocean and Atmospheric Sciences, and Botany has been awarded the Jacob Biely Faculty Research Award. This award is regarded as UBC’s premier award for research across all disciplines.
Dr. Suttle was the first researcher to recognize the abundance of viruses in seawater. He examines viruses and their roles in the oceans, high Arctic, deep mines, aeolian dust, lakes, and migratory-bird ponds. He also explained their role as major agents of mortality and drivers of global biogeochemical cycles.
Dr. Suttle is a Fellow of the Royal Society of Canada, and also a Member of the Order of Canada.
Water-breathing ectotherms underpin aquatic biodiversity and sustain many of the ecosystem functions and services on which human societies depend. They are fundamental to understanding population dynamics, food web structure, fisheries productivity, and the functioning of ocean, freshwater, and Earth systems.
As warming and deoxygenation are intensifying across aquatic environments, there is an urgent need for robust, generalizable explanations of how these organisms grow, reproduce, and persist. This Fisheries Centre Research Report addresses precisely this challenge, and is exceptional in both scope and substance.
The discussion of scientific debate surrounding the Gill-Oxygen Limitation Theory (GOLT) is particularly timely. In fields characterized by complexity and heterogeneity, individual studies rarely provide definitive resolution. Progress instead depends on evaluating bodies of evidence, methodological robustness, and coherence across taxa and levels of organization. This volume emphasizes the importance of such standards, highlighting how differences in data selection, analytical choices, and interpretation can shape conclusions. It thus contributes not only to the empirical assessment of the GOLT, but also to broader discussions about how theories should be tested, challenged, and refined in complex ecological systems.
What emerges is the product of decades of sustained scholarly effort to establish a unifying framework for understanding the growth of WBE. In doing so, it challenges the scientific community not only to further test the GOLT, but also to propose genuinely competing theories capable of explaining the same broad range of observed phenomena. This report will be valuable to researchers, students, and practitioners seeking to understand aquatic life in a rapidly changing world, and it exemplifies the kind of integrative, critical scholarship that the Institute for the Oceans and Fisheries support.
William Cheung’s term as Director of the Institute for the Oceans and Fisheries will conclude on June 30, 2026. A search committee has been formed to conduct an internal UBC search for the next Director of the Institute. The position is open to all qualified candidates holding a tenured professorial rank, with strong preference being given to a faculty member at the rank of Professor. The advertisement (copied below) is attached. Throughout the process, the search committee will be seeking input from all Institute constituents.
I am requesting applications for the position of Director. Applications should include a cover letter (briefly describing your motivation for the role, vision statement, and leadership style), current curriculum vitae (including publication record) and the names and email addresses of two references. The application deadline is Friday, March 27, 2026.
DIRECTOR, INSTITUTE FOR THE OCEANS & FISHERIES
UBC Internal Search
The Faculty of Science at the University of British Columbia is seeking applications for the position of Director of the Institute for the Oceans and Fisheries (IOF). We seek an experienced UBC faculty member with an established international reputation to lead and advance the IOF’s mission to promote healthy and sustainable marine and freshwater ecosystems through excellent research, inspirational education, and innovative societal engagement. Further information about the unit can be found at http://oceans.ubc.ca/.
We seek a dynamic individual with a compelling vision for the future of the IOF at UBC, an internationally recognized research profile, a record of excellent teaching and commitment to educational programs at the graduate level, and demonstrated leadership abilities. The successful candidate will be responsible for leadership in the overall academic endeavors, administration and human relations of the IOF, will lead the implementation of strategic priorities for the IOF and will be a strong advocate for the IOF within the University and in the national and international arenas.
The position is for a five-year term and will be available beginning July 1, 2026. The successful candidate must hold a tenured professorial position at the University of British Columbia, with strong preference being given to a faculty member currently at the rank of Professor. Candidates from outside the IOF are welcome to apply, but are expected to become an active member of the IOF.
The University of British Columbia hires on the basis of merit and is committed to employment equity. All qualified persons are encouraged to apply; however, Canadians and permanent residents will be given priority. We especially welcome applications from members of visible minority groups, women, Indigenous persons, persons with disabilities, persons of minority sexual orientations and gender identities, and others with the skills and knowledge to engage productively with diverse communities.
The deadline for applications is March 27, 2026. Applications, consisting of a cover letter (briefly describing your motivation for the role, vision statement, and leadership style), curriculum vitae (including publication record) and the names and e-mail addresses of two references, should be sent to:
Dr. Mark MacLachlan
Dean, Faculty of Science
University of British Columbia
E-mail: searches@science.ubc.ca
When the ocean starts to lose its breath, the first signs can be easy to miss.
Oxygen is invisible, but it quietly decides where marine life can live, how it behaves, and how productive ecosystems can be. In a recent study, Institute for the Oceans and Fisheries researchers Dr. Hongsik Kim and Dr. Rashid Sumaila argue that ocean deoxygenation is not only a physical, chemical, and biological crisis. It is also a socio-economic one, because the impacts do not stop underwater. They travel into fisheries, food security, and livelihoods.
Dr. Kim points to the International Union for Conservation of Nature (IUCN)’s apt description: the ocean is losing its breath. When oxygen drops low enough, hypoxia can form, which can be described as low-oxygen zones or dead zones, places where marine life can barely survive because dissolved oxygen is insufficient. The manuscript emphasizes that oxygen loss is accelerating globally and that hypoxic events are becoming more pressing. That makes this issue timely, not only because ecosystems are changing, but because the decisions we make now can determine whether fisheries face manageable disruption or critical decline.
The central message is straightforward: we cannot protect fisheries by looking only at fish biology, or only at economic outcomes. Deoxygenation reshapes both. It can alter where fish and other marine species can go, how well they grow, and how they reproduce. At the same time, those biological shifts affect what fishers can catch, what it costs to operate, how profitable fisheries remain, and what management measures are realistic. Dr. Kim puts it this way: “Deoxygenation is not just a threat to marine life, but a risk to human societies. Narrowing the gap between ocean science and economics is essential to secure the future of our fisheries and marine ecosystems.” Sumaila captures the stakes with a blunt reminder that applies across species: “Not much difference between fish and people: no oxygen, no life!!”
“The Strait of Georgia in the Salish Sea” Photo credit: Megan Duchesne
A major problem is what the authors call a “silo effect” between natural and social sciences. Oceanographers have strong tools for describing how warming, circulation, and biogeochemical processes influence oxygen in the sea, and they can document ecological impacts. Economists have frameworks for valuing fisheries, analyzing incentives, and evaluating trade-offs in management. However, oxygen loss often remains weakly integrated into economic valuation and decision-making. That gap matters because many fisheries tools have historically treated the environment as stable enough to simplify. When oxygen conditions become more variable and more extreme, those simplifications can break.
The paper highlights one core challenge: quantifying complex, non-linear feedback loops between ocean change and economic responses. Fish do not respond to low oxygen in a neat, linear way, and neither do people. When conditions shift, fish distributions can change, fleets can chase different areas, costs can rise, profits can fall, and management may tighten or loosen rules. Those choices feed back into ecosystems through fishing pressure and compliance. Capturing that two-way relationship is hard, but the key is opportunity. If oceanography and economics are integrated, we can move beyond simply observing change to building actionable strategies that support adaptive management and ecosystem-based management.
Small scale fisheries in Brazil.Image by Fotos-GE/Pixabay
Who needs to do this work? Researchers, especially oceanographers and economists, need a shared foundation to build models that connect oxygen variability to outcomes people care about, like profitability and sustainability. Fisheries managers and policymakers need robust evidence to justify incorporating environmental variables such as dissolved oxygen into stock assessments and long-term plans. Without that integration, decisions risk being made with an incomplete picture of what is driving change.
The study also makes a practical point that is easy to overlook: integration fails if the basics do not line up.
Ocean data and fisheries data often come in different shapes. Oxygen can vary over hours, days, and seasons, while many economic and management decisions rely on annual summaries. Global models may be too coarse for local fisheries questions. The authors stress the importance of aligning spatial and temporal scales so that short, intense low-oxygen events are not “averaged away,” and so that regional planning reflects conditions fishers actually face. They also emphasize that different kinds of data must be treated carefully, because each dataset has limits and assumptions that can distort conclusions if used uncritically.
Small temperate coastal rainforest stream emptying into the ocean. (Photo credit: Bennett Whitnell/Hakai Institute)
Just as important, the paper recognizes that collaboration is not only technical; it is cultural. Oceanographers and economists often prioritize different questions and different definitions of value. Ocean science may focus on long-term ecosystem dynamics and feedback, while economics may focus on human behaviour, markets, and trade-offs that drive real-world choices. The manuscript argues that bridging these perspectives takes interdisciplinary collaboration from the start, shared terminology, and co-designed research questions so models produce outputs that managers can actually use.
In the end, the message is not despair, it is direction. If the ocean is losing its breath, our response cannot stay siloed. Oxygen loss will shape ecosystems and economies together, and the most useful tools will be the ones that connect those realities. Integrated models that link oxygen variability to fishery outcomes can help societies anticipate risks, design smarter management, and protect both marine ecosystems and the people who rely on them.
Canada’s wild salmon are more than a symbol. They are food, culture, livelihoods, and an ecological thread tying rivers to the ocean and back again. Canada’s Wild Salmon Policy (WSP) was designed to protect that thread through conservation, habitat protection, and long-term management. However, the ocean side of the story is changing fast. A study by UBC Institute for the Oceans and Fisheries researchers Dr. Jacob Lerner, Dr. Anna McLaskey, and Dr. Brian Hunt argues that rapid ocean change is testing whether policy and management can keep up when new threats appear.
One of those threats has a deceptively gentle name: thiamine deficiency complex. Thiamine is vitamin B1, a nutrient essential to fish health. Salmon build thiamine stores at sea through what they eat. Those stores help adults endure migration and are passed from mothers into eggs, supporting fry in the earliest, most fragile stage of life. When thiamine in eggs drops too low, survival can collapse. In severe cases, fry mortality can exceed 90%. As the authors put it, “Low levels can lead to high incidence of fry mortality (> 90%).” The scary part is that the problem can be hidden: adult returns may look normal, while the next generation quietly fails.
Thiamine deficiency is not a single-cause issue. It is an ecosystem signal that can emerge when the food web shifts. Thiamine begins at the base of the food web, produced by certain phytoplankton and bacteria, then moves upward through prey and into salmon. But some prey contain thiaminase, an enzyme that breaks down thiamine and blocks absorption. Thiamine and thiaminase levels vary among prey species and can change over time. Warming and ocean stratification can also reshape surface waters in ways that may reduce thiamine supply. The result is a nutritional trap: salmon may still find prey, but the diet may deliver fewer of the nutrients needed for reproduction and early survival.
For years, thiamine deficiency was not widely recognized as a major Pacific salmon concern. That assumption has shifted as the issue has been detected in Pacific salmon systems outside Canada, including cases linked to low egg thiamine and high fry mortality. What stands out is how quickly it can appear, suggesting it may be triggered by sudden ecosystem reorganization.
Photos of adult Chinook and eggs taken by McLaskey and Lerner during egg sampling at DFO hatcheries.
In British Columbia, the study notes that a major assessment effort has recently started to examine Chinook egg thiamine. Early signals suggest that in some ecologically distinct populations, a variable and sometimes large share of females can have egg thiamine concentrations associated with thiamine deficiency complex. That uneven risk makes it difficult to manage with a single, uniform approach.
There are ways to respond, at least in the short term. In hatchery contexts, thiamine-enriched egg baths or injections for pre-spawning females can help reduce early mortality, and some treatments are already being used. However, these measures do not solve the bigger question: what is changing in the ocean, and why is the food web failing to deliver what salmon needs?
This is where the research connects back to policy. The WSP has built important foundations, including conservation planning and monitoring structures, and it recognizes the importance of ecosystem information. Still, the authors argue that fast-moving ocean change creates a new reality where subtle threats can appear quickly and outpace traditional monitoring. Counting fish and tracking broad trends remain essential, but they may miss the underlying drivers, as in the case of thiamine deficiency where the problem is nutritional, not simply abundance. As the paper warns, “WSP’s emphasis on long term monitoring programs may tether it to established ecosystem indicators and may lead to managers missing emerging effects on salmon.”
Thiamine deficiency, in that sense, becomes a stress test for modern salmon management. Meeting it requires mechanistic ecosystem research that links climate conditions, prey communities, and salmon health, and turns those links into practical decision support. It also requires collaboration across regions, since salmon and ocean processes do not follow borders and warning signs may appear elsewhere first.
Photos of adult Chinook and eggs taken by McLaskey and Lerner during egg sampling at DFO hatcheries.
The main message is not that the Wild Salmon Policy has failed. It is that the ocean is changing the rules, and management needs the speed and flexibility to respond. Thiamine deficiency shows how an invisible shift at the base of the food web can echo forward into the next generation. An important factor in enabling TDC research in BC to get off the ground quickly and include investigations of ecosystem drivers in addition to monitoring was a unique source of funding through the BCSRIF, which comes to an end in 2026. Protecting wild salmon in the years ahead will depend on detecting emerging threats early, understanding their causes, and acting before quiet losses become irreversible.
Congratulations to Associate professor, Dr. Marie Auger-Méthé, who was selected as one of the Canadian Science Policy Centre (CSPC)’s 2026 Science Meets Parliament delegates.
Dr. Auger-Méthé is a statistical ecologist, cross-appointed in UBC’s Institute for the Oceans and Fisheries, and its Department of Statistics, whose groundbreaking work focuses on developing statistical tools that help answer challenging ecological and conservation questions, particularly in polar and marine ecosystems.
Her interest in animal behaviour has helped her develop statistical tools to understand the movement strategies used by animals to find resources and cope with the dynamics of their habitat, as well as identifying important habitats for animals, understanding the multifaceted ways humans impact animals, and co-leading an international collaborating research team that develops statistical models to help improve the health of humans and non-human animals.
As part of the Science meets Parliament program, she will spend time in Victoria, working with provincial leadership on environment and ecology, to better understand their priorities, and to ensure they are aware of her conservation research, tools, and understanding of issues related to the marine and polar environments.
On February 11, International Women in STEM Day, the Institute for the Oceans and Fisheries (IOF) is highlighting a few of the women across the Institute whose work shows what science looks like when it is built for impact. Their roles span the full spectrum of a research community, from a PhD candidate finishing a dissertation, to a professor leading a global conservation team, to scholars shaping Indigenous-led fisheries research and governance. What connects their work is not a single topic or a single method. It is a shared commitment to asking hard questions, building evidence, and turning knowledge into action.
For the IOF, that impact can start in unexpected places, including deep water. Salome Buglass is about to defend her PhD thesis, focused on characterizing a novel kelp forest in the Galápagos and assessing its vulnerability and resilience in the face of climate change. This is a major milestone. At the heart of her research is a gap she says matters: deep-water mesophotic tropical kelp ecosystems are largely understudied, yet they may play an important role in climate resilience as deep-water thermal refugia. Her work also emphasizes accessibility. By developing low-cost methods to study these systems, she aims to support scientists, conservation practitioners, and policymakers working to protect marine ecosystems in a changing climate. One achievement she is especially proud of is uncovering the presence of a novel mesophotic kelp forest in the Galápagos Archipelago, a discovery that expands how we understand where kelp ecosystems can exist and what they might mean for resilience.
STEM stories are not only about discoveries. They are also about the realities of building a career, and the conditions that shape who feels safe, supported, and able to thrive. Salome describes sexual harassment as one of the most challenging experiences she faced as a junior scientist, including the difficult process of reporting it in the hope of protecting future junior scientists. She also speaks to the lack of representation as a Black woman and how it can amplify impostor syndrome, along with the challenge of navigating academic institutions that can be structured around outdated power dynamics. Her response is not framed as a neat solution, but as a strategy for staying grounded: leaning on therapy for perspective and intentionally building communities of like-minded people who share similar experiences. Looking ahead, she is most excited about finishing her PhD and starting a postdoctoral position at University of California, Los Angeles focused on training and supporting students from underserved communities. What advice she would she offer to younger women and girls interested in STEM? Find supportive communities that lift you up, speak up when you are ready, and choose your battles carefully.
The science undertaken by women is aimed directly at changing how the ocean is used and protected. Dr. Amanda Vincent, Professor and Director of Project Seahorse, says her personal passion right now is to end bottom trawling in most of the ocean through a combination of science, management, policy, and communication initiatives. Her team’s work lies in seahorse science, marine protected areas, non-selective fisheries and wildlife trade, blending research and action to effect change at local, national, and global scales. The problem she points to is urgent and wide-reaching: bottom trawling is highly destructive and non-selective, creating ecological, economic, and social problems. For her, the goal is transition, moving toward less damaging and more sustainable gear that can reconcile fisheries and conservation while bringing socioeconomic benefits and reducing pressure on ecosystems.
Her pride in her work is tied to both scientific firsts and lasting change. She was the first biologist to study seahorses underwater, focusing on male pregnancy, and she has used these remarkable fishes to help drive major conservation outcomes, including the first global export regulations on marine fishes. Even the small details of scientific recognition come with a larger message about responsibility. She shares that a friend and colleague, Dr. Diego Luzzatto, found a new pipefish species and named it Leptonotus vincentae. Yet her response immediately turns to concern: she is deeply worried it is assessed as Critically Endangered on the IUCN Red List, and she emphasizes the need to reduce fishing pressure and recover habitats. Asked about challenges in STEM, she describes a different kind of pressure: the overwhelming number of meaningful opportunities in conservation and the difficulty of saying no. She notes that being a single parent helped her keep work in perspective and set priorities. Her advice to younger women and girls is about mindset and momentum: foster optimism, identify the problems, and then focus on finding solutions. In 2026, her team will celebrate 30 years of measurable achievements in ocean conservation, and she will return to fishing villages in the Philippines where her work began, reconnecting with communities and the marine protected areas they helped establish.
STEM also includes scholarship that bridges disciplines and insists that fisheries are never only about fish. Dr. Dianne Newell, Professor Emerita in the Department of History and IOF and Interim Director of the Centre for Indigenous Fisheries, describes current work that spans species, ecosystems, and the long impacts of colonialism. She is about to submit a paper with Dr. Daniel Pauly on white sturgeon in British Columbia, their life history and the history of sturgeon fisheries. She is also a co-author on a paper examining colonialism and salmon in the lower Fraser River, and she has co-authored a review focused on the ecological importance of the decline in kelp forests, offering a framework on the value of Macrocystis kelp forests globally. Across these projects, she emphasizes the deep value of fish and aquatic plant species for Indigenous communities, including nutritional, economic, social, cultural, spiritual, and ceremonial meaning, and she notes how communities have had little or no access to some of these species for more than a century while the species themselves have declined. She also points out the scale of risk, noting that sturgeon as a family are among the most endangered vertebrates globally in the 2020s.
When asked to describe what responsible partnership looks like in practice, Dianne points to an approach that is increasingly central to the Centre for Indigenous Fisheries CIF): Indigenous-led research, co-created projects and methodologies, and respect for data sovereignty. She stresses that this goes well beyond treating Indigenous people as data sources and instead recognizes that Indigenous researchers, including some trained through IOF, are developing models for meaningful, productive, and just projects. Looking to 2026, she is excited about working with Oceans and Fisheries students of culturally and academically diverse backgrounds and welcoming a new faculty member to the Centre for Indigenous Fisheries. She also highlights the broader influence of feminist scholarship from women in STEM, describing how renowned scholars, such as Evelyn Fox Keller, examined how gender ideology shaped scientific practice, including the way certain attributes were privileged or devalued.
That same commitment to justice-oriented work is central to Dr. Sara E. Cannon, Liber Ero Postdoctoral Fellow at CIF. She works in partnership with First Nations to support just and effective aquatic governance. Her current research focuses on Pacific salmon and the cumulative impacts of industrial fisheries on Indigenous rights, access, and stewardship responsibilities. Sara is leading a project titled “Toward social justice and sustainability in Canadian salmon fisheries: industrial transboundary fisheries and Indigenous rights,” examining how marine mixed-stock salmon fisheries intercept salmon before they return to Indigenous territories, and what that means for Indigenous fishing rights, food security, and cultural continuity. She explains the core concern in simple terms: many First Nations fisheries operate in rivers or near river mouths, catching salmon when they return home to spawn, and First Nations have long raised concerns that industrial mixed-stock fisheries at sea undermine constitutionally protected rights by intercepting salmon before they return. Her work aims to address an evidence gap by collating interception data and combining it with First Nations perspectives, with research designed to benefit Indigenous communities first and foremost, while also informing policy, conservation, and cross-border governance. She notes that this work may inform upcoming renegotiations of the Pacific Salmon Treaty set to be renewed in 2028.
Sara’s pride also extends to teaching and community-building. She helped co-develop an IOF graduate course, FISH 506Y: Co-Creating Aquatic Science, designed to prepare students to engage in community-driven and collaborative aquatic science. The curriculum foregrounds Indigenous perspectives and emphasizes relational accountability, reciprocity, and ethical engagement, and it is being taught for the first time this semester with an inaugural cohort of 11 students. When she reflects on challenges, she describes navigating STEM spaces that were not designed to value relational, justice-oriented, or Indigenous-led approaches to science. She credits mentorship, collaboration with Indigenous scholars and communities, and supportive peer networks for helping her stay grounded and confident in doing science differently without compromising rigour or impact. Her advice to younger women and girls is a reminder that belonging should not require shrinking yourself: you do not have to change who you are to belong in STEM, and your values, relationships, and lived experiences are strengths, especially in fields that shape people’s lives and environments.
Together, these stories show why International Women in STEM Day matters. It is not only a celebration of success. It is also a chance to see what “STEM” actually looks like in practice: discovering and protecting hidden ecosystems, fighting for healthier oceans through policy and action, building research partnerships grounded in justice, and training the next generation with care and accountability. Across IOF, these women demonstrate that science is not just about what we know. It is about what we choose to do with that knowledge, and who gets to be part of creating it.
Manatees are not often the first marine mammal people think of, and are often seen as a Florida only based mammal. However there are more populations out there than expected. Many know of dugongs; an Asia based herbivorous “sea cow” very similar to manatees, but did you know there are manatees in South America? And they are at the centre of an urgent conservation story.
Manatees are often misunderstood as simple or passive animals. In reality, they are highly perceptive and adaptable, with a remarkable ability to navigate complex environments and locate freshwater sources across large and changing landscapes. Their slow movements are often mistaken for a lack of awareness, when in fact they reflect a species finely tuned to its environment.
American manatees in this region, particularly in Brazil, have experienced an unusually high incidence of strandings, especially for neonates; the highest reported anywhere in the world.
Stranding of two baby manatees. Photo credit: Acervo Aquasis
Broad environmental degradation or human pressures in coastal habitats manatees depend on are why calves continue to strand year after year, though many strandings are preventable.Addressing root causes is what allows rehabilitation to remain a bridge to recovery, rather than a permanent emergency response.
This is the focus of long-term work led by manatee researchers and conservation partners, including by the UBC Institute of Ocean and Fisheries’ Marine Mammal Research Unit’s Research Associate Dr. Carol Meirelles. Dr. Meirelles’ research in this area focuses on fieldwork, rescue and rehabilitation, and regional collaboration to better protect manatees. Understanding how they use the environment and what types of actions can reduce risk before emergencies happen.
This is the focus of long-term work led by manatee researchers and conservation partners, including by the UBC Institute of Ocean and Fisheries’ Marine Mammal Research Unit’s Research Associate Dr. Carol Meirelles. Dr. Meirelles’ research in this area focuses on fieldwork, rescue and rehabilitation, and regional collaboration to better protect manatees. Understanding how they use the environment and what types of actions can reduce risk before emergencies happen.
Take rehabilitation, for example. Responding to strandings can prevent immediate population losses, but it is resource-intensive, especially for calves.
Maceió, a West Indian manatee at a rescue centre in Brazil prior to being released back into the wild. Photo: ChicoRasta
“Young manatees require years of continuous care, specialized facilities, and highly trained teams to survive and eventually return to the wild,” said Dr. Meirelles. “Rehabilitation plays a critical role, but it is not a long-term solution on its own. If the underlying causes of strandings, such as habitat loss, reduced access to freshwater, and human disturbance, are not addressed, rehabilitation risks becoming a permanent emergency response rather than a pathway to recovery
Conservationists need a clear picture of where manatees are, how they move, and what conditions make habitats viable. “We have been using spatial ecology: looking at how animals use space over time and how that relates to environmental conditions and human activities, to understand the situation,” Dr Meirelles says. “Manatees in tropical waters live in a variety of habitats, requiring safe feeding areas, reliable freshwater sources, and shallow, calm water refuges, that they can move between during the year. Mapping their patterns assists with conservation planning, impact assessment, and management decisions.”
Multiple data sources are used, including citizen science sightings and telemetry data. Stranding records also provide information about risk exposures and mortality patterns. Traditional and local ecological knowledge can also help fill gaps in regions that are poorly represented by systematic surveys. Each data source must be interpreted carefully. As a result, stranding locations do not necessarily reflect where manatees are living, but can reflect where lost calves or carcasses are most likely to be recovered. The goal is not to discard any data type, but to understand what each one represents and explicitly account for bias in spatial analyses.
Human activities and climate change are already reshaping this habitat network. In semi-arid regions of Brazil, manatees have largely stopped using estuaries that have become hypersaline due to climate change and human impact and now rely almost entirely on submarine freshwater springs. These are limited and vulnerable freshwater sources. It also reinforces the need for mapping movements and habitat connections. Protecting feeding areas alone is not enough if freshwater access is shrinking, or if the corridors that connect key habitats become disrupted.
To gather more information, Dr. Meirelles gathered specialists from across South America to form the Alliance for Manatees. Using evidence-based data, such as models, maps, and priority areas, the Alliance provides decision-makers with information that can move reactive conservation to more proactive approaches. This can identify priority areas before conflicts arise, guide coastal and marine spatial planning, and improve environmental impact assessments by grounding them in evidence of actual habitat use rather than assumptions or incomplete data. In places where information has been scarce, fragmented, or unevenly distributed, reducing uncertainty, and increasing transparency can determine whether conservation is built into planning early, or only considered after losses become obvious.
Public understanding is part of this picture too. “For the Brazilian American manatee subpopulation, regional coordination and better integration of science into decision-making and planning, will mean greater stability, fewer calf strandings, improved protection of key habitats, and more secure access to freshwater in a changing climate,” said Dr. Meirelles.
“Moving our understanding of these unique regionally based marine mammals into the mainstream will help us all recognize the ecological complexity and social realities of conservation objectives, and keep manatees thriving in the wild.”