Fisheries India https://fisheriesindia.com Fisheriesindia.com will put forward the uniquely amalgamated information on key aspects of fisheries and aquaculture science such as Recent updates and News related with Fisheries under a single umbrella Sun, 14 Sep 2025 20:02:30 +0000 en-US hourly 1 https://wordpress.org/?v=6.8.3 https://fisheriesindia.com/wp-content/uploads/2025/02/cropped-FreeImageKit.com_Img-size512x512px-32x32.png Fisheries India https://fisheriesindia.com 32 32 In the Salish Sea, Killer Whales and Salmon Spark Deeper Conflicts Beyond Fishing https://fisheriesindia.com/2025/09/in-the-salish-sea-killer-whales-and-salmon-spark-deeper-conflicts-beyond-fishing.html https://fisheriesindia.com/2025/09/in-the-salish-sea-killer-whales-and-salmon-spark-deeper-conflicts-beyond-fishing.html#respond Mon, 22 Sep 2025 04:49:00 +0000 https://fisheriesindia.com/?p=6577 Read more

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Endangered Killer Whales and Struggling Salmon at the Center of Conflict

In the Salish Sea, a critical ecological and cultural region of the Pacific Northwest, southern resident killer whales and the endangered Chinook salmon they rely on are at the heart of a growing conservation debate.

Since 2019, Canada’s Department of Fisheries and Oceans (DFO) has implemented protective measures, including:

  • Area-based closures for recreational salmon fishing
  • Interim sanctuary zones for whales
  • Seasonal voluntary vessel slowdowns

While aimed at protecting whales and salmon, these measures have fueled tensions between recreational fishers and conservationists. The issue has gained national attention in Canada and even influenced fishery debates in Alaska.

Why This Conflict Matters

Environmental conflicts like this go far beyond fishing. They reflect broader struggles over:

  • Community needs
  • Conservation values
  • Trust in government decision-making

When poorly managed, these disputes can polarize communities. But when handled collaboratively, they can spark dialogue, trust, and long-term solutions.

Research Insights: Beyond “Fishers vs. Conservationists”

A recent study involving over 700 British Columbians revealed surprising overlaps:

  • Nearly one-third of conservationists also identified as anglers.
  • Almost half of anglers also identified as conservationists.

This shows that people hold multifaceted identities and cannot simply be divided into opposing sides. Yet, public debates often reduce the issue to binary positions:

  • Should fishing be restricted to protect killer whales?
  • Or should access for fishers take priority?

In reality, both groups deeply value the Salish Sea ecosystem but disagree on management priorities.

What the Study Found

  • Shared Values: Both anglers and conservationists tied their identity and well-being to the environment.
  • Different Priorities: Conservationists emphasized protecting species regardless of human benefit, while some anglers favored balancing conservation with human use.
  • Social Media Effect: Survey responses showed moderate, respectful views. However, Facebook discussions revealed more hostility, anger, and polarization—showing how online platforms can amplify conflict.

Transforming Conflict Through Collaboration

Researchers argue that the DFO and other decision-makers should shift their approach by:

  • Recognizing deeper social roots of conflict such as values, beliefs, and identity.
  • Investing in long-term dialogue and relationship-building.
  • Encouraging transformative conflict resolution rather than short-term fixes.

Examples from cougar management in the U.S. and elephant conservation in Mozambique show that conflict transformation can create durable, trust-based solutions.

The Bigger Picture: Climate Change and Conservation

As climate change, habitat loss, and species decline intensify, conflicts like the one in the Salish Sea will only grow. At their core, these conflicts are not just about whales or salmon—they are about people, communities, and values.

Instead of treating conflicts as inconveniences, policymakers can use them as opportunities to:

  • Build trust and cooperation
  • Strengthen evidence-based policies
  • Support coexistence between humans and wildlife

Conclusion

The conflict over southern resident killer whales and Chinook salmon in the Salish Sea illustrates the challenges of modern conservation. By embracing collaborative, transformative approaches, decision-makers can move beyond polarization and foster solutions that respect both ecosystems and communities.

Reference: Lauren E. Eckert et al., Identifying opportunities toward conflict transformation in an Orca‐Salmon‐Human system, Conservation Science and Practice (2025). DOI: 10.1111/csp2.70108

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Genetic Fingerprint Approach Enhances Detection of Gene-Edited Organisms https://fisheriesindia.com/2025/09/genetic-fingerprint-approach-enhances-detection-of-gene-edited-organisms.html https://fisheriesindia.com/2025/09/genetic-fingerprint-approach-enhances-detection-of-gene-edited-organisms.html#respond Sun, 21 Sep 2025 05:12:00 +0000 https://fisheriesindia.com/?p=6602 Read more

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Researchers from the Belgian Federal Institute Sciensano, working within the DARWIN project, have developed a genetic fingerprinting method that enhances the detection of gene-edited organisms in the food chain. This proof-of-concept demonstrates how genome database mining, combined with advanced sequencing and machine learning, can make it possible to accurately identify even subtle genetic modifications introduced through New Genomic Techniques (NGTs).

The study, published in Food Research International, represents a major step toward regulatory compliance, consumer trust, and traceability in food systems.


Breakthrough in Gene-Edited Rice Detection

The research focused on a genome-edited Nipponbare rice line with a single CRISPR-Cas-induced single nucleotide variation (SNV). Using whole-genome sequencing, researchers confirmed no off-target mutations and created a unique genetic fingerprint combining:

  • The on-target mutation site
  • Cultivar-specific barcodes made from pairs of SNVs unique to a rice variety

By analyzing more than 3,000 publicly available rice genomes, the team applied machine learning to identify these minimal marker sets, forming a reliable genetic barcode for each cultivar.


High Sensitivity and Accuracy

The results revealed that the approach could detect and identify genome-edited rice lines at very low levels (0.9% and 0.1%), proving its sensitivity for food-chain monitoring.

This means that even organisms with subtle genetic edits—often challenging to trace—can, in principle, be uniquely identified when prior genomic information is available.


Benefits for Food Safety and Regulation

According to Nancy Roosens, Head of Division at Sciensano, the method is best suited for gene-edited organisms with a fully sequenced and well-characterized genetic background, especially when supported by open-access genome databases.

Key potential benefits include:

  • Supporting EU regulatory discussions on gene-edited crops
  • Enhancing transparency in food systems
  • Improving traceability for consumers and regulators
  • Boosting scientific knowledge on innovative plant breeding technologies

However, the researchers emphasize that routine application will require overcoming challenges, including the need for broader genomic data sharing and efficient cataloging of modifications.


Implications for the Future of NGT Detection

This genetic fingerprint strategy highlights a promising path toward robust detection methods for new genomic techniques. It also strengthens the goals of the DARWIN project, which aims to deliver reliable tools ensuring food system transparency.

As gene-edited crops and foods become more common, having reliable methods for unambiguous detection will be essential for maintaining consumer trust and regulatory oversight.


Study Reference

Marie-Alice Fraiture et al. Genetic fingerprints derived from genome database mining allow accurate identification of genome-edited rice in the food chain via targeted high-throughput sequencing. Food Research International (2025).
DOI: 10.1016/j.foodres.2025.117218

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AI Technology Detects Stress Levels in Farmed Amazonian Tambaqui Fish https://fisheriesindia.com/2025/09/__trashed-141.html https://fisheriesindia.com/2025/09/__trashed-141.html#respond Sat, 20 Sep 2025 03:49:00 +0000 https://fisheriesindia.com/?p=6608 Read more

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Researchers from São Paulo State University (UNESP) in Jaboticabal, in partnership with EMBRAPA (Brazilian Agricultural Research Corporation), have developed an artificial intelligence (AI) tool capable of measuring stress levels in tambaqui (Colossoma macropomum), the most widely farmed native fish species in Brazil.

The findings, published in the journal Aquaculture, mark an important step toward improving animal welfare and enabling the genetic selection of stress-tolerant fish for aquaculture.


Why Tambaqui Stress Monitoring Matters

Tambaqui is an Amazonian freshwater species and a cornerstone of Brazilian aquaculture, with 110,000 tons produced in 2022. Stress management is critical in fish farming because it directly affects:

  • Growth performance
  • Disease resistance
  • Overall animal welfare

The research team found that tambaqui exposed to confined conditions or treated with stress hormones displayed darker body coloration. This visible trait became the basis for training AI software to detect stress automatically.


How the AI Tool Works

The scientists used 3,780 images of tambaqui from two populations:

  • 1,280 fish from CAUNESP
  • 2,500 fish from EMBRAPA in Tocantins

By marking the lower half of the body in each photo, the team trained a deep learning model to analyze the ratio of black to white pixels. This allowed the system to identify a threshold for stress detection.

Interestingly, since the Tocantins fish had known ancestry records, the researchers were also able to demonstrate that stress tolerance is heritable, meaning selective breeding programs could produce more resilient generations of farmed tambaqui.


Physiological Mechanisms Behind Stress

Fish often display color changes when stressed, a phenomenon also seen in tilapia (Oreochromis niloticus). The process is triggered by stress hormones like α-MSH (melanocyte-stimulating hormone), which expand melanophores (black pigment cells) in the skin and scales.

To confirm this in tambaqui, the team conducted two experiments:

  1. Hormone exposure test – Scales soaked in α-MSH solution darkened significantly after 30 minutes.
  2. Confinement study – Fish transferred from large 200 m² tanks to smaller 2,000-liter reservoirs developed darker coloration after 10 days.

These findings proved that darker pigmentation is a reliable stress indicator in tambaqui.


Applications for Sustainable Aquaculture

The AI-based stress detection tool offers several benefits for fish farming:

  • Real-time monitoring of animal welfare using simple photographs
  • Guidance for farm management, such as adjusting stocking density
  • Support for selective breeding of stress-tolerant fish
  • Contribution to better productivity and disease resistance in aquaculture

According to project coordinator Diogo Hashimoto, the goal is to ensure future generations of tambaqui show improved well-being and performance in farming environments.


Study Reference

Celma G. Lemos et al. Deep learning approach for genetic selection of stress response in the Amazon fish Colossoma macropomum. Aquaculture (2025).
DOI: 10.1016/j.aquaculture.2025.742848

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Climate Change is Pushing Fish Stocks From National Waters to the High Seas, Study Reveals https://fisheriesindia.com/2025/09/climate-change-is-pushing-fish-stocks-from-national-waters-to-the-high-seas-study-reveals.html https://fisheriesindia.com/2025/09/climate-change-is-pushing-fish-stocks-from-national-waters-to-the-high-seas-study-reveals.html#respond Fri, 19 Sep 2025 04:11:00 +0000 https://fisheriesindia.com/?p=6660 Read more

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Climate change is rapidly altering the world’s oceans, forcing many commercially important fish species to shift their natural ranges. According to a new study published in Science Advances, more than half of the world’s straddling fish stocks—species that migrate between national waters and international high seas—will cross maritime borders by 2050.

Most of these shifts will move stocks into the high seas, an area where fisheries management is weak, leaving species more vulnerable to overfishing.


What Are Straddling Fish Stocks?

Straddling stocks are species whose populations overlap between exclusive economic zones (EEZs)—waters up to 200 nautical miles from a country’s coast—and the open ocean. Examples include:

  • Silky sharks (Carcharhinus falciformis)
  • Blue sharks (Prionace glauca)
  • Skipjack tuna (Katsuwonus pelamis)
  • Yellowfin tuna (Thunnus albacares)

These species are vital for global food security and economies, especially in developing countries that depend heavily on fisheries revenue.


Why Climate Change Is Driving the Shift

Rising sea temperatures, changing salinity levels, and declining oxygen are forcing fish to seek new habitats. The study used advanced modeling systems to project these shifts and found:

  • One-third of identified stocks will move into the high seas by 2050.
  • One-fifth will shift into EEZs, but mostly in temperate rather than tropical waters.
  • Both low-emission and high-emission scenarios showed similar patterns up to 2050.

As marine species move, tropical countries—least responsible for climate change—are at risk of losing access to critical fisheries resources.


Consequences for Tropical Nations

For many small island developing states (SIDS), tuna fisheries represent a financial lifeline. Nations like Kiribati, Solomon Islands, and Papua New Guinea collectively sell access rights to tuna fishing in their EEZs, generating essential revenue.

However, the study predicts that 58% of straddling stocks in the central Indo-Pacific region will move into the high seas, leaving tropical nations at a disadvantage. Without strong governance, they may lose both food security and economic stability.


Calls for Better Fisheries Governance

Experts argue that climate-driven shifts demand stronger international cooperation. Currently, Regional Fisheries Management Organizations (RFMOs) such as the Western and Central Pacific Fisheries Commission (WCPFC) and the Inter-American Tropical Tuna Commission (IATTC) are responsible for tuna stocks, but critics say these organizations are slow to adapt to climate challenges.

Some researchers, including co-author Rashid Sumaila, even call for a ban on high seas fishing, suggesting that it could protect biodiversity and prevent wealthy nations from monopolizing displaced fish stocks.


The Urgent Need for Climate-Resilient Fisheries

The study highlights two critical issues:

  1. Equity and justice – Tropical nations risk losing fisheries resources despite contributing little to climate change.
  2. Sustainability – The high seas are poorly regulated, increasing the risk of overexploitation.

Experts stress that nations and international bodies must adopt climate-informed fisheries management, including:

  • Improved data collection and stock monitoring
  • Stronger collaboration between RFMOs
  • Localized studies to understand regional shifts

As lead author Juliano Palacios-Abrantes notes, “Climate change is sending a whole bunch of fisheries out into the lion’s den.”


Final Thoughts

The redistribution of fish stocks due to climate change poses serious ecological, economic, and social challenges. Without urgent action, tropical nations stand to lose critical resources while the high seas become a hotspot for overfishing.

This study serves as a wake-up call for policymakers, fisheries managers, and conservationists to ensure that future ocean governance is fair, sustainable, and climate-resilient.


Source: Palacios-Abrantes et al. (2025), Science AdvancesDOI: 10.1126/sciadv.adq5976

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Beloved Giant Pacific Octopus “Ghost” Captures Hearts as She Enters Final Life Stage at Aquarium of the Pacific https://fisheriesindia.com/2025/09/beloved-giant-pacific-octopus-ghost-captures-hearts-as-she-enters-final-life-stage-at-aquarium-of-the-pacific.html https://fisheriesindia.com/2025/09/beloved-giant-pacific-octopus-ghost-captures-hearts-as-she-enters-final-life-stage-at-aquarium-of-the-pacific.html#respond Thu, 18 Sep 2025 04:23:00 +0000 https://fisheriesindia.com/?p=6725 Read more

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Ghost the Giant Pacific Octopus: A Farewell Full of Love

Marine life lovers across California and beyond are sending heartfelt goodbyes to Ghost, a giant Pacific octopus at Aquarium of the Pacific in Long Beach, as she enters the final phase of her life. Ghost is now focused entirely on caring for her eggs—a natural part of the octopus life cycle known as senescence—even though the eggs are unfertilized and will never hatch.

Social media has been flooded with tributes from fans who remember Ghost from past visits. Some have even shared tattoos and souvenirs featuring her image. The aquarium posted, “She is a wonderful octopus and has made an eight-armed impression on all of our hearts,” highlighting her unique bond with visitors.


Understanding Senescence in Giant Pacific Octopuses

Giant Pacific octopuses (Enteroctopus dofleini) live an average of three to five years. During senescence, female octopuses stop eating and devote all their remaining energy to protecting and aerating their eggs. This process prevents harmful bacteria from growing on them—an instinctive behavior observed both in the wild and in captivity.

According to Nate Jaros, Vice President of Animal Care at the aquarium, octopuses are solitary creatures:

“You really can’t combine males and females for long periods because they don’t naturally cohabitate. There’s a high risk of aggression or even death.”


Ghost’s Journey: From British Columbia to California

Ghost originally came from the waters of British Columbia, Canada, and arrived at the aquarium in May 2024 weighing just 3 pounds (1.4 kg). Over time, she grew to an impressive 50 pounds (22.7 kg) and became known for her playful and interactive nature.

Jaros described Ghost as “super active and very physical,” noting that she often pushed aside food just to interact with her caregivers. She was trained to crawl into a basket voluntarily for weighing, a testament to the intelligence and adaptability of giant Pacific octopuses.


Enrichment and Intelligence: Ghost’s Legacy

Aquarium staff provided Ghost with toys, puzzles, and even a custom-built acrylic maze to keep her stimulated—challenges she mastered almost instantly. Such enrichment activities mimic hunting behaviors in the wild, like catching crabs and clams.

Jaros added:

“Octopuses are incredibly special because of how charismatic and intelligent they seem to be. We form strong bonds with these animals.”


A New Octopus Will Continue Ghost’s Mission

While Ghost is receiving private care during her final days, the aquarium has already welcomed a new young octopus, weighing about 2 pounds (900 g). Staff will spend time observing its personality before choosing a name. Early impressions suggest the newcomer is “super curious” and “very outgoing,” promising to continue Ghost’s role as an ambassador for ocean education.


Fans Reflect on Ghost’s Impact

Marine biology student Jay McMahon from Los Angeles expressed his gratitude for seeing Ghost again recently:

“When you make a connection with an animal like that and you know they don’t live for long, every moment means a lot. I hope she inspires people to learn more about octopuses and their importance.”

Ghost’s story highlights the incredible intelligence and emotional connection these marine creatures can create. Her legacy will live on through the people she inspired and the new octopus ready to educate and captivate future visitors.

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Fully Funded PhD Position in Environmental Microbiology at ETH Zurich, Switzerland https://fisheriesindia.com/2025/09/fully-funded-phd-position-in-environmental-microbiology-at-eth-zurich-switzerland.html https://fisheriesindia.com/2025/09/fully-funded-phd-position-in-environmental-microbiology-at-eth-zurich-switzerland.html#respond Wed, 17 Sep 2025 09:40:00 +0000 https://fisheriesindia.com/?p=6511 Read more

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The Department of Environmental Systems Science at ETH Zurich is inviting applications for a fully funded PhD position in the Environmental Microbiology Group, led by Prof. Marie Schölmerich. This exciting opportunity begins in Spring 2026 (or upon mutual agreement) and offers the chance to conduct cutting-edge research in anaerobic microbiology.

About the Research

The Environmental Microbiology Group studies microorganisms that use ancient metabolic pathways to transform greenhouse gases like carbon dioxide and methane. By combining metagenomics, classical microbiology, and biochemistry, the team explores how microbes shape biogeochemical cycles and contribute to sustainable technologies.

This specific PhD project will focus on re-wetted peatlands, aiming to:

  • Characterize shifts in microbial communities
  • Uncover molecular mechanisms driving these ecological transformations

Research Activities Include:

  • Fieldwork in peatland ecosystems
  • Metagenomic and metatranscriptomic analyses
  • Microcosm experiments
  • Isolation and cultivation of anaerobic microorganisms

Candidate Profile

Required Qualifications:

  • M.Sc. degree in Environmental Sciences, Microbiology, Biology, Bioinformatics, or a related field
  • Strong background in microbiology and molecular biology techniques
  • Excellent written and spoken English communication skills
  • Ability to work effectively in a team environment

Preferred Experience:

  • Previous fieldwork in ecological or microbiological studies
  • Familiarity with anaerobic microorganisms

What ETH Zurich Offers

Successful candidates will benefit from:

  • A fully funded PhD position with access to advanced laboratory and computational resources
  • A collaborative, interdisciplinary, and international research environment
  • Opportunities for conference travel, workshops, and career development
  • A family-friendly environment with world-class academic and cultural support
  • Access to ETH Zurich’s renowned facilities and benefits

ETH Zurich is one of the world’s leading universities in science and technology, with over 30,000 students and staff from 120+ countries, known for excellence in research, education, and innovation.

Frequently Asked Questions (FAQ)

1. Is the PhD position fully funded?
Yes, this is a full-time, fully funded doctoral position at ETH Zurich.

2. What is the main research focus?
The project examines microbial community changes in re-wetted peatlands, with a focus on anaerobic microorganisms and their role in greenhouse gas transformations.

3. Can international students apply?
Yes, ETH Zurich encourages global applications.

4. Do I need prior experience with anaerobic microorganisms?
It is preferred but not mandatory. Training will be provided.

5. What is the application deadline?
The deadline is October 3, 2025.

Application Process

Applications must be submitted exclusively via the ETH Zurich online application portal. Submissions by email or post will not be considered.

Required Documents:

  • Cover Letter
  • Curriculum Vitae (CV), including publications (if any)
  • Diploma and Transcript of Records
  • Contact details of two references

Deadline: October 3, 2025
Start Date: Spring 2026 or as agreed

👉 Apply Online via ETH Zurich Portal

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Octopus Arms Show Astonishing Flexibility and Movement in New Scientific Study https://fisheriesindia.com/2025/09/octopus-arms-show-astonishing-flexibility-and-movement-in-new-scientific-study.html https://fisheriesindia.com/2025/09/octopus-arms-show-astonishing-flexibility-and-movement-in-new-scientific-study.html#respond Wed, 17 Sep 2025 05:11:00 +0000 https://fisheriesindia.com/?p=6739 Read more

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Octopus arms are among the most flexible and versatile structures in the natural world. Their unique agility has inspired robotics researchers to explore new designs for soft, flexible robots that could navigate tight spaces, perform delicate tasks, or even deliver vital supplies during rescue missions in disaster zones.

A groundbreaking study by scientists from the Marine Biological Laboratory (MBL) in Woods Hole and Florida Atlantic University (FAU) has now produced the most detailed behavioral catalog of octopus arm movements ever recorded. Published in Scientific Reports (2025), this research sheds new light on how octopuses use their eight arms for foraging, locomotion, and interaction with their environment.


📹 Studying Octopuses in Their Natural Habitat

Researchers video-recorded 25 wild octopuses across six locations in the Atlantic Ocean, Caribbean Sea, and Spain. This field-based approach allowed them to observe behaviors that could never be fully replicated in laboratory settings.

“Recording octopuses in their natural environment gave us a deeper understanding of their complex behaviors,” explained Chelsea Bennice, FAU research fellow and first author of the study.

Senior scientist Roger Hanlon of MBL, who has studied cephalopods for over 25 years, emphasized that this is the first full ethogram—a detailed catalog—of wild octopus arm movements. Earlier studies were mostly conducted in laboratory tanks, limiting the range of behaviors observed.


🌊 Sensory Superpowers and Camouflage

Octopuses rely heavily on tactile sensing through their suckers rather than on vision. Each arm contains about 100 highly sensitive suckers, which Hanlon describes as “chemo-tactile geniuses”—combining the functions of the human nose, lips, and tongue in one structure.

Their camouflage abilities—rapidly changing skin color and texture—made them challenging to locate in the wild. Divers searched for clues like leftover shells and food debris to find octopus dens. Octopuses typically spend 80% of their time hidden in dens, emerging once or twice daily to forage.


🔬 Breaking Down the Movements

The researchers analyzed field footage frame-by-frame, dividing each arm into three segments to document 12 distinct types of movements. Key discoveries include:

  • Elongation and shortening occur mostly near the base of the arm.
  • Bending and fine probing are more common at the tips.
  • Arms are used for walking on the seafloor, swimming, probing crevices for prey, and manipulating objects.

“These actions form the foundation of all octopus behaviors,” said Kendra Buresch, MBL co-author.


🤖 Inspiring Next-Generation Robotics

This research has significant implications beyond marine biology. Robotics engineers are eager to replicate octopus-like movement for search-and-rescue missions or medical devices that can navigate narrow passages inside the human body.

Hanlon highlights the potential:

“To deliver tools or supplies into tight spaces—whether under rubble or underwater—you need a flexible, precise appendage like an octopus arm.”


📑 Study Reference

Source: Marine Biological Laboratory and Florida Atlantic University
Published in: Scientific Reports (2025)
DOI: 10.1038/s41598-025-10674-y

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12 Fully Funded PhD Positions – Cologne Graduate School of Ageing Research, Germany https://fisheriesindia.com/2025/09/12-fully-funded-phd-positions-cologne-graduate-school-of-ageing-research-germany.html https://fisheriesindia.com/2025/09/12-fully-funded-phd-positions-cologne-graduate-school-of-ageing-research-germany.html#respond Tue, 16 Sep 2025 10:09:47 +0000 https://fisheriesindia.com/?p=6620 Read more

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The Cologne Graduate School of Ageing Research (CGA) is offering 12 fully funded PhD positions for outstanding young scientists. The program begins between July 1 and October 1, 2026, and provides a unique opportunity to train in one of Europe’s leading research hubs on ageing and age-related diseases.


About the Graduate School

CGA is a joint initiative of four world-class institutions in Cologne, Germany:

  • University of Cologne Excellence Cluster on Stress Responses in Aging-Associated Diseases (CECAD)
  • University Hospital Cologne
  • Max Planck Institute for Biology of Ageing
  • Max Planck Institute for Metabolism Research

The program offers exceptional training in developmental biology, evolutionary biology, genetics, structural biology, metabolism, and cell biology, with 49 interdisciplinary research groups working at the forefront of ageing science.


What the Program Offers

Successful PhD fellows will benefit from:

  • Fully funded 3+ year contracts under TV-L E13 (65%) or Max Planck equivalent
  • An international research environment with cutting-edge facilities
  • Comprehensive PhD training program conducted entirely in English
  • Dedicated supervision and mentoring via thesis advisory committees
  • Career coaching plus methodology and soft skills courses
  • Annual conference travel grants
  • Full relocation and visa support for international students
  • A vibrant academic and cultural life in Cologne, Germany

Candidate Profile

CGA seeks highly motivated and talented candidates who have:

  • An MSc or equivalent degree in:
    • Biology
    • Molecular or Cell Biology
    • Biochemistry
    • Bioengineering
    • Bioinformatics
    • Biophysics
    • Genetics
    • Medical Biology
    • Translational Medicine
    • Or related disciplines
  • Excellent academic records in BSc and MSc studies
  • Strong passion for ageing research
  • Proficiency in English at C1 level (written and spoken)

Application Details


Diversity and Inclusion

CGA is deeply committed to equal opportunities and diversity.

  • Applications from women are strongly encouraged.
  • Applicants with disabilities will be given preference in cases of equal qualifications.
  • The program actively welcomes international researchers from all backgrounds.

Frequently Asked Questions

1. How many positions are available?
There are 12 fully funded PhD positions.

2. What is the duration of the PhD program?
At least 3 years, with possible extensions.

3. Do I need to speak German?
No. The entire program is conducted in English.

4. Can international students apply?
Yes. CGA provides full support for visas and relocation.

5. What is the salary?
PhD fellows are paid under TV-L E13 (65%) or equivalent Max Planck contracts.

6. What is the deadline?
Applications close on November 3, 2025.

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Octopus Arms Show Specialized Movements and Complex Coordination in the Wild https://fisheriesindia.com/2025/09/octopus-arms-show-specialized-movements-and-complex-coordination-in-the-wild.html https://fisheriesindia.com/2025/09/octopus-arms-show-specialized-movements-and-complex-coordination-in-the-wild.html#respond Tue, 16 Sep 2025 03:45:00 +0000 https://fisheriesindia.com/?p=6753 Read more

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Octopuses are some of the most intelligent and flexible invertebrates on Earth. With eight highly adaptable arms, these marine animals can hunt prey, communicate, build shelters, and even defend themselves—all while thriving in diverse underwater habitats.

New Study Explores Octopus Arm Movements in Natural Habitats

A groundbreaking study by Florida Atlantic University’s Charles E. Schmidt College of Science, in collaboration with the Marine Biological Laboratory (MBL) in Woods Hole, Massachusetts, has revealed how wild octopuses use their arms with precision and versatility. Published in Scientific Reports, this is the first research to connect octopus arm movements to whole-body behaviors in complex, real-world environments.

Researchers observed three octopus species across six shallow-water habitats—five in the Caribbean and one in Spain. By analyzing nearly 4,000 arm movements from 25 underwater videos, they identified 12 unique arm actions tied to 15 different behaviors.

Front and Back Arms Play Different Roles

The study discovered that while every arm can perform any type of movement, there’s a clear division of labor. Front arms are mainly used for exploration—feeling around rocks or probing crevices—while back arms are more involved in propulsion and movement.

Four Types of Arm Deformation Observed

The team documented almost 7,000 arm deformations, including:

  • Bending – Curving the arm, mostly near the tips.
  • Elongating – Extending the arm, usually closer to the body.
  • Shortening – Contracting the arm to pull objects or reposition.
  • Torsion (Twisting) – Rotating for grip or manipulation.

These specialized movements highlight the complex motor control octopuses possess. Sometimes, a single arm worked independently—like grabbing prey—while in other instances, multiple arms coordinated for actions like crawling or ambush hunting, also known as “parachute attacks.”

Adaptations for Survival and Camouflage

Lead author Chelsea O. Bennice, Ph.D., explained that octopuses rely on these abilities not just for foraging but also for survival tactics. For example, when crossing open areas, they may use several arms to mimic floating seaweed or moving rocks to stay hidden from predators. Their flexible arms are also critical for:

  • Building protective dens.
  • Competing with rival males during mating.
  • Fending off predators.

Importance for Neuroscience and Robotics

Co-author Roger Hanlon, Ph.D., emphasized that studying octopuses in their natural habitats provides vital insights into their sensory world. These findings could inspire advances in soft robotics, neuroscience, and animal behavior research, as octopus arms are a living model of dexterity and adaptability.

Diverse Habitats Studied

The research covered a variety of environments, from smooth sandy seabeds to complex coral reefs, showing how octopuses adjust their movements depending on habitat. This adaptability is a key reason why octopuses thrive in such a wide range of ecosystems.

Why This Matters

Understanding how octopuses coordinate their arms deepens our knowledge of marine biology and could influence future technology. As Bennice noted, “These versatile abilities allow octopuses to thrive in a wide range of habitats, and studying them opens exciting opportunities for innovation in multiple scientific fields.”


Reference:
Florida Atlantic University and Marine Biological Laboratory. Octopus arm flexibility facilitates complex behaviors in diverse natural environments. Scientific Reports (2025). DOI: 10.1038/s41598-025-10674-y

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PhD Fellowship in Population Genetics – University of Copenhagen, Denmark https://fisheriesindia.com/2025/09/phd-fellowship-in-population-genetics-university-of-copenhagen-denmark.html https://fisheriesindia.com/2025/09/phd-fellowship-in-population-genetics-university-of-copenhagen-denmark.html#respond Mon, 15 Sep 2025 14:13:57 +0000 https://fisheriesindia.com/?p=6629 Read more

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The Globe Institute, Faculty of Health and Medical Sciences at the University of Copenhagen is inviting applications for a 3-year PhD fellowship in Population Genetics, starting January 1, 2026 (or as soon as possible thereafter). This fully funded position is an excellent opportunity for students passionate about human evolutionary history, computational biology, and archaic introgression research.


About the Research Group

The fellowship will be hosted in Laurits Skov’s research group at the Section for Molecular Ecology and Evolution, Globe Institute. The team investigates the evolutionary history of Homo sapiens, Neanderthals, and Denisovans, focusing on how fragments of their DNA remain in modern humans due to introgression events.

The group explores major evolutionary questions, including:

  • How many archaic humans contributed to our genomes?
  • How long did modern humans coexist with them?
  • When did Neanderthals and Denisovans go extinct?
  • How do their genes influence modern human health and traits?
  • Which genomic regions are uniquely human?

The research combines population genetics, computational method development, and archaeology in an interdisciplinary framework.


Project Description

As a PhD fellow, you will:

  • Develop new computational methods to study archaic introgression.
  • Apply these tools to the largest human genomic dataset (>1.1 million individuals).
  • Infer evolutionary parameters such as:
    • Mutation rates
    • Generation times
    • Admixture history with archaic humans
    • Historical population sizes
    • Selective forces shaping genomes
  • Investigate how frequently archaic and modern humans interacted and where.
  • Use biobank data to analyze the impact of archaic DNA on human health and phenotypes.

This project bridges genomic research with medical applications, offering unique training in cutting-edge population genetics.


Supervisors

  • Principal Supervisor: Associate Prof. Hannes Schroeder
  • Co-Supervisor & Contact: Assistant Prof. Laurits Skov (laurits.skov@sund.ku.dk | +45 35 32 00 23)

Position Details

  • Start Date: January 1, 2026 (or soon after)
  • Duration: 3 years
  • Workload: 37 hours per week
  • Location: Globe Institute, Øster Farimagsgade 5, 1350 Copenhagen K, Denmark
  • Application Deadline: September 28, 2025 (23:59 GMT+2)

Candidate Requirements

Applicants must hold a Master’s degree (or equivalent to a Danish MSc) in:

  • Population Genetics
  • Computational Biology
  • Bioinformatics
  • Biology
  • Computer Science
  • Statistics
  • Or related areas

Additional requirements:

  • Strong academic performance and GPA
  • Relevant professional qualifications or publications
  • Programming and computational analysis experience
  • Interest in human evolutionary genetics and archaic humans
  • Excellent written and spoken English skills

About the Globe Institute

The Globe Institute is an interdisciplinary research hub at the University of Copenhagen that integrates natural sciences, medical sciences, and humanities.

Benefits of joining include:

  • A dynamic and international research environment
  • Collaborative and inclusive working conditions
  • Family-friendly policies, including up to 47 weeks of parental leave and six weeks of paid vacation annually
  • Relocation services for international researchers and families

Salary and Employment Conditions

  • Monthly salary: 30,841 DKK (approx. €4,131) – April 2025 level
  • Pension included
  • Terms follow the agreement between the Ministry of Taxation and the Danish Confederation of Professional Associations
  • Employment is contingent on enrolment in the Graduate School of Health and Medical Sciences

Application Instructions

Applications must be submitted electronically and include the following documents (PDF format):

  1. Motivated application letter (max 1 page)
  2. CV (with education, experience, and language skills)
  3. Certified MSc diploma and transcripts (with English translation if applicable)
  4. Publication list (if available)

📌 Deadline: September 28, 2025, at 23:59 GMT+2


Frequently Asked Questions

1. What is the focus of the PhD project?
The project develops computational tools to study archaic introgression and applies them to large-scale human genomic data.

2. What background is required?
A Master’s in population genetics, bioinformatics, computational biology, or related fields.

3. Is programming experience necessary?
Yes. Computational analysis and method development are key components.

4. Where will the fellowship be based?
At the Globe Institute, University of Copenhagen.

5. What is the salary?
30,841 DKK/month (approx. €4,131) plus pension.

6. When is the deadline?
September 28, 2025.

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