The developments along the Mekong River, including in Cambodia, have boomed. There were 755 dams. Of these, 537 have been completed, and 152 have been planned or proposed. Of these, 52 were under construction, and 14 have been canceled or suspended. Of these dams, 392 were hydropower, 337 were irrigation, and 26 were other types (CGIAR, 2015). Even though some officials saw economic development as a result of the hydropower dam, the negative impacts of hydropower dams were seen by many (...) local experts and NGOs. The negative impacts include reduced fishing stocks and exacerbated socio-economic issues (Asia and the Pacific Policy Society, 2022). Experts have conducted some research on ecosystems and livelihoods, but there has been a lack of studies conducted by local communities to investigate their cross-border impacts as a result of the hydropower dam, despite the fact that local communities have been facing issues as a result of the Mekong Development. The community research protocol was developed to improve local communities' understanding of their local contexts and their confidence in negotiating with decision-makers and policymakers to address and respond to their needs and the findings of studies on local planning for sustainable community development. The paper aims to guide community leaders and staff in conducting community research on transboundary impacts on fisheries resources, ecosystems, and the livelihoods of local communities using their knowledge. (shrink)

Conservation efforts often assume that local, tight-knit communities are best equipped to manage natural resources. Yet a new study by Smith et al. [2] reveals a surprising twist: friendships that span village boundaries can actually enhance cooperation in managing shared fisheries along the Tanzanian coast.

A recent study has produced the first standardized, region-wide inventory of marine foodfish species consumed across 22 Pacific Island Countries and Territories (PICTs), documenting an extraordinary dietary dependence on over 1,000 species of reef and pelagic fish [2]. This “Pacific foodfish list” addresses a critical need for harmonized data to inform sustainable fisheries management in a region where climate change and population growth threaten food security.

Fisheries bycatch—the accidental capture of marine mammals and other protected species—remains a major threat to ocean biodiversity. Traditional management tools, like fishing bans or gear restrictions, often fail to encourage fishers to change their behavior effectively. A new study by Bellanger et al. (2025) introduces a practical framework to evaluate incentive-based approaches that aim to align conservation goals with the motivations of those working at sea.

How can we better understand the intricate web of relationships that bind people, nature, and the institutions that govern them—particularly in complex systems such as small-scale fisheries? A recent study by Schlüter et al. (2025) offers an innovative perspective: rather than viewing the world as composed of fixed entities like “humans” or “fish,” it proposes modeling these systems as evolving networks of relationships and interactions that continuously shape one another.

Edward Stuart Russell (1887–1954) was a central figure in the philosophy of biology during the first half of the twentieth century. Although he worked as a government fisheries scientist for much of his life, he still managed to establish himself as one of the most prominent biological theorists of his time. The views he developed, which were antireductionistic, organism-centred, and teleological, challenged the prevailing mechanistic orthodoxy. His book 'The Interpretation of Development and Heredity' (1930) provides one of themost incisive (...) critiques of the chromosomal theory of the gene ever published, and it has acquired a renewed relevance in light of recent empirical findings. Russell’s interest in the theoretical problems of biology is as much historical as philosophical, and many of his works, particularly his first book 'Form and Function' (1916), are still regarded today as landmark contributions to the history of biological thought. (shrink)

In one way or another, one out of three people are being affected by land degradation. It is estimated that, about every year, 75 billion tonnes of soil material are being lost worldwide as a result of land degradation. Recent findings also showed that about 2 billion hectares of land were severely degraded, in some cases in an irreversible way, all these caused a severe damage to local ecologies as well as contributed a lot for climate change and its associated (...) effects on the wellbeing of humanity. Apart from this, the major portion of most developing countries population are still dependent on the un-mechanized and primitive forms agriculture, livestock production, forestry and fishery, and their livelihood and options for economic development are directly linked to the quality of the land and its resources. The objective of this article is to reaffirm the role of Sustainable Land Management in the process of agricultural development, the main source of livelihood in the developing countries. The paper initially explored the basic concept and principles of sustainable management. Causes of land degradation, the prime challenge of sustainable land management and development are also dealt in detail. (shrink)

The study aims to investigate indigenous communities’ socio-economic impacts as a result of the COVID-19 pandemic and to explore coping strategies to aid in the socio-economic recovery of indigenous communities. -/- The COVID-19 pandemic has had a negative impact on indigenous people's livelihoods, including employment and income, education, the migration of people, health, and natural resources. As a result of COVID-19, the indigenous people have lost their employment and income. The price of fish has decreased, which has lowered their ability (...) to make money from selling fish. Migrant workers returned home because they were concerned about their health security and many lost their jobs. Schools were closed because of COVID-19 and this increased education inequality. Health was impacted because it was difficult to access health services due to restrictions on travel. Returning migrants have pressured forest and fishery resources through increases in the number of fishers, which include the migrants who have returned to their own village. -/- The RGC, rural communities and indigenous communities have taken a number of measures to cope with the issues stemming from COVID-19. Migrant workers tried to look for local employment, used fishing to supplement household consumption and income needs, and often borrowed money from neighbors. Students attempted to use e-learning that was facilitated by the government; teachers visited some students’ homes, and older students supported younger students in their school lessons. In terms of health, home visits were facilitated for pregnant women, and people sought permission to travel to health centers. After giving birth, families were visited and offered a small amount of money to support their basic needs. To deal with natural resources, some coping strategies included smaller groups of patrolling teams, support grants from CSOs for forest and fishery resource patrolling, drone delivery to community fishery committees, and requesting community members to report illegal fishing or logging. And to minimize the spread of COVID-19, a mandatory 14-day quarantine at home was imposed on all people returning to the village. (shrink)

For decades, industrial fishing has been recognized for depleting fish stocks and altering marine food webs. However, a recent study by González Ortiz et al. (2025) reveals a lesser-known but profound consequence: large-scale disruptions to the ocean’s nutrient cycles. By extracting biomass, fisheries are also removing vital nutrients—carbon (C), nitrogen (N), and phosphorus (P)—that are essential to sustaining marine life.

The volume includes topics from political philosophy and normative ethics on the one hand to philosophy of science and the philosophical underpinnings of water management policy on the other. It contains reflections on ecological nationalism, the legacy of Grey Owl, the meaning of ‘outside’ to Canadians, the paradigm shift from mechanism to ecology in our understanding of nature, the meaning of the concept of the Anthropocene, the importance of humans self-identifying as ‘earthlings’, the challenges of biodiversity protection and the status (...) of cross-bred species, how to ground the moral considerability of ecosystems, the collapse of the Newfoundland and Labrador cod fishery, and much more. It covers metaphysics, ontology, ethics, political philosophy, critical history, and environmental policy. The range of topics and frames is as diverse and challenging as the land itself. (shrink)

Understanding what constitutes an effective nursery habitat for juvenile fish is crucial for conserving marine biodiversity and sustaining healthy fisheries. A recent study by Moustaka et al. (2025) investigates how the interplay between habitat composition, seascape configuration, and hydrodynamic conditions influences juvenile fish assemblages across the tropical Dampier Archipelago in Western Australia.

The research focused on the cross-boundary impacts of ecological changes on the livelihood of communities in three villages in Stung Treng province, Cambodia. The research objectives were to analyze river ecological changes and their drivers, and to explore the impacts of these changes on the livelihood of the communities. The research was conducted in Kraom, Kaoh Snaeng, and Tonsang villages. The study found that there have been significant changes in the environment of these villages. The fishery resources have declined between (...) 2019 and 2022 due to factors such as population growth, illegal fishing, loss of flooded forests, and the presence of hydropower dams. The extent of flooded forests has also significantly decreased, negatively impacting fish populations and the overall ecosystem. Water level fluctuations have become irregular since 2018, with lower water levels during the rainy season compared to previous years. Riverbank landslides have been a concern, posing threats to safety and livelihoods. Excessive algae growth in the rivers has also been observed. The research findings indicate a decline in income from fish catch in all three villages, with varying levels of stability. Expenses for food have also varied. Migration patterns have been observed, with individuals seeking better opportunities elsewhere due to the decline in fish stocks. Crop damages have been attributed to irregular flooding and fluctuating water levels, leading to a decrease in crop cultivation. Changes in water quality, including the presence of lime and algae, have impacted the well-being of the residents. Overall, the research highlights the need for interventions and support to address the economic challenges faced by the communities, mitigate the loss of equipment and housing, and improve water quality. (shrink)

Palawan is a land of promise, and of paradox. On maps, it appears on the edge of the Philippines, isolated. Indeed, it is a kind of last frontier. Its population remained tiny for centuries, the government offering homestead land in the 1950s practically for free to attract migrants from outside. The Palawan State University was established by law in 1965, but did not become operational until 1972. A commercial airport did not exist until the 1980s, and for many years, flights (...) were limited. Yet Palawan is one of the oldest sites of human habitation in the Philippines with the famous Tabon Cave human fossils. The oldest bone fragment here has been dated to be about 47,000 years. We know, too, that trade with China goes back several centuries. Today, Palawan seems to be making up for lost time with new commercial investments pouring in at breakneck speed. In particular, outsiders have rediscovered its potentials around logging, mining, fisheries, and tourism. This has caused concern among individuals and civil society organizations who want sustainable development, and see the commercial developments mainly as extractive, not just of natural resources but of the human. There’s very cheap labor available. And when potential investors marvel about cheap land, they’re actually talking about displacing earlier settlers, including indigenous people, from their lands. A subtle but still insidious aspect of the exploitation of human resources is a transformation of the very concept of human development. Using the rhetoric of modernity, residents in Palawan are reorienting the way they view themselves as well as their families and friends. The value of a human being now hinges on how they look, and the desired appearance is defined from the outside, as we see in this anthology of research reports coming from the Chemical Youth project of the University of Amsterdam and the University of the Philippines Diliman. We read about the importance of fair skin as a projection of cleanliness, of high social status (meaning someone not engaged in manual labor and therefore not exposed to the sun). We read of how “femininity” is defined around body contours, and cosmetics, and how hormones are used by male-to-female transgenders. We go beyond the visual, reading about the importance of controlling or enhancing body odors among tour guides, who interestingly are especially concerned about the bad odor management of their foreign customers, using car perfumes to keep their work manageable and we learn how difficult it is for security guards to stay alert during their long shifts. Energy drinks and cigarettes help them perform their duties. All these transformations through what the French philosopher and historian Michel Foucault has called “technologies of the self” are as paradoxical as Palawan. On the surface, the products—which are technologies—seem to be mainly in the realm of the self but are, in reality, pushed, through marketing, from the outside, in contexts of inequality and exploitative labour relations. Personal aspirations are not personal but are for predefined standards of modernity, related to work-related demands and expectations. The self must be made presentable to the tourist, to the customers in malls, and to those who may threaten the properties that young people protect. It is not surprising that these transformations become problematic for the “self.” The skin whiteners, the hormones, the body deodorants, and the energy drinks are expensive and can distort budgetary priorities. The money for tonic drinks, for example, could well go into more nutritious food. The tragedy, too, many of the products used are of doubtful safety and efficacy. Even the energy drinks have much too high levels of caffeine that can cause cardiac palpitations. Cosmetics and the skin whiteners imported from China and unregistered with the Food and Drug Administration may contain toxic chemicals like mercury. But even registered skin whiteners can be problematic, their so-called “skin-whitening effect” coming about because they take away the upper layers of the skin, leaving behind a red glow (seen as “whitening”) which is actually inflammation. The whitened skin fails to protect against the sun, leading to adverse effects such as black spots. Ultimately though, the problems come with the very definition of the self. As the reports show, young people use the chemicals with some ambivalence, knowing how expensive they are and experiencing some of the undesirable side effects. There is, too, doubt about whether what they’re doing is indeed “good,” captured by how IP women will put on cosmetics only when they’re away from home and about to go to work. The cosmetics have to be removed before they return home because they are not socially acceptable. The research reports are not for Palawan alone. It must make us more critical and discerning as we revisit concepts of development and exploitation, modernity and tradition, self and community. The chemicals, in many ways, are like the products used in precolonial barter trade. For the Chinese, the beeswax and the sea cucumbers, for the inhabitants of Palawan the ceramics, represented faraway lands. To have those products gave prestige. Today, the skin whiteners and tonic drinks and other chemicals described in this anthology represent modernity with promises of not just of a more attractive self, but of better jobs, a better life. We are proud to have worked with the Palawan State University, and the people of Palawan, to gather powerful narratives that will now challenge the outside, the purveyors of modernity, to be more critical and discerning, the chemicals now to be seen not just as stuff applied to the biological body, but as powerful shapers of social bodies. (shrink)

Abstract: Accurate identification of marine species is critical for effective fishery management, biodiversity conservation, and the aquaculture industry. Traditional methods of fish identification rely on expert knowledge and manual labor, making them time- consuming, expensive, and error-prone. In this research, we explore a machine learning-based approach to automate the classification of nine fish species using image recognition techniques. The fish species under study include Black Sea Sprat, Gilt- Head Bream, Horse Mackerel, Red Sea Bream, Shrimp, Trout, Striped Red Mullet, Sea (...) Bass, and Red Mullet. We collected 1000 images per species, yielding a total of 9000 images, with 750 used for training and 250 reserved for testing. We utilized convolutional neural networks (CNNs) pre-trained on the ImageNet dataset and fine-tuned them to perform fish species classification. Preliminary experiments showed that CNNs, particularly transfer learning models like VGG16 and ResNet50, achieved accuracy rates as high as 98.6% on the test set. This research highlights the potential of deep learning in automating marine species identification, enabling faster, more reliable monitoring. (shrink)

Adaptive management (AM)—an approach that incorporates learning into decision-making—has long been recognized for its potential in conservation but remains underutilized due to the complexity of real-world ecological systems [2,3]. In a recent study, Canessa et al. [4] introduced a simulation-based approach to AM, integrating management strategy evaluation (MSE), a tool widely applied in fisheries, to inform recovery strategies for the endangered hihi (Notiomystis cincta), a forest bird endemic to Aotearoa-New Zealand.

The objective of this paper was to identify the level of demand in the Vietnamese fisheries sector for e-Nav – weather and sea condition forecast application developed by NASCA Geosystems. NASCA Geosystems is a small company of five people operating in the field of information technology consulting. Management at NASCA Geosystems wanted to study the Vietnamese market in order to expand their operation in Vietnam. In this thesis, both qualitative and quantitative methods were applied. The quantitative data was gathered (...) from the official statistic sources namely the General Statistics Office of Vietnam, Indexmundi, the United Nations and the World Bank. The qualitative research includes an email interview with the director of NASCA Geosystems and a personal interview with Mr. Tran Dinh Lan from the Institute of Marine Environment and Resources. (shrink)

Đánh bắt ngoài ý muốn các loài động vật có vú biển và các loài được bảo vệ trong khai thác thủy sản (fisheries bycatch) vẫn là một mối đe dọa lớn đối với đa dạng sinh học đại dương.

China’s South China Sea Claims: A Path to Peace and Sustainability -/- Introduction -/- China’s aggressive claims over the South China Sea have sparked tensions with neighboring countries and global powers. Despite its economic and military strength, China avoids large-scale war, likely due to the devastating consequences it would bring. If China truly seeks long-term peace and stability, it should consider abandoning its territorial claims and focusing on sustainable population management. These actions would not only improve regional stability but also (...) ensure China’s long-term prosperity. -/- China’s Motivations for Controlling the South China Sea -/- China’s claim over the South China Sea is driven by several strategic reasons: -/- 1. Military and Strategic Control -/- The South China Sea is a crucial maritime route that allows China to expand its military presence. By controlling the waters, China creates a defensive buffer against potential threats from the U.S. and allied nations. -/- 2. Economic and Trade Significance -/- An estimated $3.4 trillion worth of trade passes through the South China Sea annually. Controlling these routes gives China leverage over global trade. -/- 3. Natural Resource Extraction -/- The South China Sea is rich in oil, gas, and fisheries. By claiming these waters, China aims to secure vital resources to sustain its economy and feed its large population. -/- 4. Nationalism and Political Power -/- The Chinese government promotes its territorial claims as a matter of national pride. This strengthens domestic support for the Communist Party, reinforcing its political control. -/- Why China Should Stop Its South China Sea Claims -/- While China’s motivations are clear, continuing its aggressive claims poses serious risks: -/- 1. Risk of War and Economic Disruptions -/- A military conflict over the South China Sea would be catastrophic, disrupting global trade and damaging China’s economy. -/- The U.S. and other countries have strengthened their military presence in the region, increasing the chances of confrontation. -/- 2. Damaging International Reputation -/- China’s defiance of the 2016 Permanent Court of Arbitration (PCA) ruling, which rejected its territorial claims, has hurt its global standing. -/- A more cooperative approach would improve China’s diplomatic relationships and reduce sanctions or trade restrictions. -/- 3. Better Alternatives for Economic Growth -/- Instead of claiming new territory, China could invest in renewable energy and technological innovation to sustain its economy. -/- Strengthening trade partnerships and economic cooperation with ASEAN countries would be more beneficial than military expansion. -/- Sustainable Population Management: A Better Solution -/- China’s massive population has historically driven its need for resources, making territorial expansion seem necessary. However, rather than claiming new land and waters, China should focus on population sustainability: -/- 1. Current Demographic Challenges -/- China’s population is aging, and birth rates are declining. Instead of expanding territory, China should adjust its policies to manage population decline in a sustainable way. -/- 2. Benefits of a Sustainable Population -/- A well-managed population would reduce resource consumption, easing pressure on food, water, and energy supplies. -/- It would shift China’s focus toward improving living standards rather than acquiring more land and resources. -/- 3. Sustainability Over Expansion -/- Investing in green energy, technology, and efficient urban planning is a better long-term strategy than fighting for new territories. -/- A smaller, more sustainable population would allow China to focus on quality of life rather than aggressive economic and military expansion. -/- Conclusion -/- China’s claim over the South China Sea is driven by economic, military, and political motivations. However, this aggressive stance risks conflict, economic instability, and international isolation. Instead of expanding its territorial claims, China should focus on diplomacy, economic cooperation, and sustainable population management. A peaceful and sustainable approach will ensure China’s stability and prosperity without the need for confrontation. -/- . (shrink)

Ang pananaliksik na ito ay ginanap sa munisipyo ng Mahatao na matatagpuan sa Isla ng Batan, probinsya ng Batanes. Karatig bayan nito ang Basco (kabisera ng probinsya) sa gawing timog. Binubuo ito ng apat na maliliit na barangay: Kaumbakan, Hañib, Panatayan, at Uvoy. Ang pangingisda ay isa lamang sa mga gawaing pangkabuhayan ng karamihan ng mamamayan na nakatira sa Mahatao gayundin ang kalahatan ng Batanes dahil sa malaki ang sakop ng anyong tubig na nakapalibot dito dagat na tanging makukuha sa (...) panahong ito: ang arayu o dorado at dibang (flying fish). -/- Ang pook ng Diura ay isang sitio ng Barangay Uvoy sa Mahatao. Inilaan ang lugar na ito ng gobyernong panlalawigan tungo sa pamamahala ng Kagawaran ng Kapaligiran at Likas na Yaman (DENR) at Bureau of Fisheries and Aquatic Resources (BFAR) upang mapanatili ang tradisyonal na paraan ng pangingisda lalo na ang gawaing Mataw habang pinangangalagaan ang ecosystem ng naturang lugar. (shrink)

Nhóm tác giả González-Mon, Bodin & Schlüter mới có xuất bản trên Ecology & Society tìm hiểu về mức độ phức tạp gia tăng và tính bất định của phản ứng với các biến đổi tiêu cực do môi trường, gây nên bởi “tính nhúng xã hội” (social embeddedness) trong các mạng lưới kinh doanh nông sản địa phương và đánh bắt cá.

This paper explores the ethical dimensions of lionfish removal and provides an argument supporting hunting lionfish for consumption. Lionfish are an invasive species found around the world. Their presence has fueled management strategies that predominantly rely on promoting human predation and consumption. We apply rights-based ethics, utilitarian ethics, and ecocentric environmental ethics to the question of whether hunting and eating lionfish is ethical. After applying these perspectives, we argue that, from a utilitarian perspective, lionfish should be culled. Rights-based ethics, on (...) the other hand, are not applicable in this case, while ecocentric environmental ethics would support lionfish removal. (shrink)

Trong thảo luận ngắn này, xin giới thiệu lại một bài điều tra tổng hợp về trường hợp cơ quan quản lý Scotland đã thống nhất với ý kiến của các đại diện công nghiệp nuôi trồng-chế biến cá hồi nhằm nới lỏng kiểm soát hóa chất diệt ký sinh, vốn được biết là độc hại (gọi chung là pesticide), có tên emamectin. Cụ thể các giới hạn sử dụng được nới lỏng để tăng 23 lần, sau các “thương thảo (...) trong bóng tối” với đại diện giới chủ. Bài báo đăng trên Ferret, ngày 21-5-2023, ký tên tác giả R. Edwards. (shrink)

An attempt has been made to study the fish fauna naturally occurring in the freshwater bodies Gonda district of Uttar Pradesh. The survey was focussed mainly on fish biodiversity and undertaken during July, 2020 to June, 2021. A total of 53 species of fishes belonging to 32 genera, 17 families and 8 orders were identified. Cyprinidae were found most dominant family represented by 22 species followed by Bagridae with 6 species, Ophiocephalidae with 4 species. Rest other families were represented by (...) 2or 1 species. (shrink)