Helene Volkoff, Memorial University of Newfoundland

Research

appetite behavior feeding fish gene expression hormones microbiota reproduction

Latest papers

Potential role of intelectin-1 in the regulation of feeding of goldfish (Carassius auratus).
Peptides · 2026 · senior author
Plastics as disruptors of feeding, digestive physiology, metabolism, and growth in fish and other aquatic ectothermic vertebrates.
Frontiers in endocrinology · 2026 · senior author
Microplastics affect food intake and the expression of appetite regulators and nutrient transporters in pond loach (Misgurnus anguillicaudatus).
Comparative biochemistry and physiology. Part A, Molecular & integrative physiology · 2025 · senior author

All 25 publications

Latest funding

The endocrine regulation of feeding in fish
NSERC · 2019 · Principal investigator
$198,000
The endocrine regulation of feeding in fish
NSERC · 2013 · Principal investigator
$200,000
Gradient themocycler for molecular research on fish neuropeptides
NSERC · 2011 · Principal investigator
$12,830

All 9 grants and awards

25 publications.

01

Potential role of intelectin-1 in the regulation of feeding of goldfish (Carassius auratus).

Perry HC, Volkoff H

Peptides2026Senior author

DOI: 10.1016/j.peptides.2026.171506 PMID: 42336246

02

Plastics as disruptors of feeding, digestive physiology, metabolism, and growth in fish and other aquatic ectothermic vertebrates.

Loganathan T, Volkoff H

Frontiers in endocrinology2026Senior author

DOI: 10.3389/fendo.2026.1873239 PMID: 42434309

03

Microplastics affect food intake and the expression of appetite regulators and nutrient transporters in pond loach (Misgurnus anguillicaudatus).

Loganathan T, Dyke J, Volkoff H

Comparative biochemistry and physiology. Part A, Molecular & integrative physiology2025Senior author

DOI: 10.1016/j.cbpa.2025.111935 PMID: 41015078

04

Group size influences feeding behavior and the expression of appetite, stress, and neurotransmitter-related transcript expression in tiger barb (Puntigrus tetrazona).

King JMD, Volkoff H

Comparative biochemistry and physiology. Part A, Molecular & integrative physiology2025Senior author

DOI: 10.1016/j.cbpa.2025.111915 PMID: 40752566

05

Endocrine regulation of feeding in non-transgenic and transgenic fluorescent orange tiger barb (Puntigrus tetrazona).

Lindstrom A, Volkoff H

General and comparative endocrinology2025Senior author

DOI: 10.1016/j.ygcen.2025.114730 PMID: 40228648

06

Effects of fasting and environmental factors on appetite regulators in pond loach Misgurnus anguillicaudatus.

Kuhn J, Lindstrom A, Volkoff H

Comparative biochemistry and physiology. Part A, Molecular & integrative physiology2024Senior author

DOI: 10.1016/j.cbpa.2024.111651 PMID: 38703991

07

A non-microcystin-producing Microcystis wesenbergii strain alters fish food intake by disturbing neuro-endocrine appetite regulation.

Long W, Harshaw K, Wang Y, Xiang Q, Zi Y, Volkoff H, MacIsaac HJ, Xu R, Niu M, Xi Q, Chang X

Harmful algae2024

DOI: 10.1016/j.hal.2024.102647 PMID: 38830717

08

The effects of environmental changes on the endocrine regulation of feeding in fishes.

Volkoff H

Philosophical transactions of the Royal Society of London. Series B, Biological sciences2024First author

DOI: 10.1098/rstb.2022.0503 PMID: 38310931

09

The role of visfatin/ NAMPT in the regulation of feeding in goldfish (Carassius auratus).

Butler MJ, Volkoff H

Peptides2023Senior author

DOI: 10.1016/j.peptides.2022.170919 PMID: 36503895

10

Effects of temperature on food intake and the expression of appetite regulators in three Characidae fish: The black-skirted tetra (Gymnocorymbus ternetzi), neon tetra (Paracheirodon innesi) and Mexican cavefish (Astyanax mexicanus).

Kuhn J, Azari S, Volkoff H

Comparative biochemistry and physiology. Part A, Molecular & integrative physiology2023Senior author

DOI: 10.1016/j.cbpa.2022.111333 PMID: 36244591

The endocrine regulation of feeding in fish

Principal investigatorNSERC2019Discovery Grants Program - Individual

Principal investigators: Volkoff, Helene

Keywords: fish; hormones; feeding; reproduction; gene expression; appetite; behavior; microbiota

$198,000

The endocrine regulation of feeding in fish

Principal investigatorNSERC2013Discovery Grants Program - Individual

Principal investigators: Volkoff, Helene

$200,000

Gradient themocycler for molecular research on fish neuropeptides

Principal investigatorNSERC2011Research Tools and Instruments - Category 1 (<$150,000)

Principal investigators: Volkoff, Helene

$12,830

High-throughput sequencer for life science research

Co-investigatorNSERC2011Research Tools and Instruments - Category 1 (<$150,000)

Principal investigators: Lang, Andrew

$83,154

Small volume spectrophotometer for molecular biology group

Principal investigatorNSERC2010Research Tools and Instruments - Category 1 (<$150,000)

Principal investigators: Volkoff, Helene

$17,215

Characterization of appetite-regulating peptides in fish

Principal investigatorNSERC2008Discovery Grants Program - Individual

Principal investigators: Volkoff, Helene

$182,500

Real-time PCR system for biology department

Principal investigatorNSERC2007Research Tools and Instruments - Category 1 (<$150,000)

Principal investigators: Volkoff, Helene

$65,218

Memorial university biology imaging centre : digital imaging (SEM & nikon)

Co-investigatorNSERC2005Research Tools and Instruments - Category 1 (<$150,000)

Principal investigators: Staveley, Brian

$46,599

Characterization of novel petides involved in the control of feeding in fish.

Principal investigatorNSERC2003Discovery Grants Program - Individual

Principal investigators: Volkoff, Helene

$170,000

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

Frequent collaborators

Xuexiu Chang

Great Lakes Institute for Environmental Research

1 shared papers, latest 2024

Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for

Paper to mentionMention their NSERC grant from 2019

Subject: Prospective PhD student: appetite Dear Professor Volkoff, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "Potential role of intelectin-1 in the regulation of feeding of goldfish (Carassius auratus)." (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] I also saw your NSERC-funded project "The endocrine regulation of feeding in fish" (2019), and I would be glad to contribute to work in that direction. Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]