Research

Research-led marine bioacoustics.

Halicho Marine is grounded in active research on underwater seal vocal repertoires, acoustic structure and monitoring methods.

Journal paper

Current scientific paper.

Coming soon

Ecological and Acoustic Structure of Underwater Seal Vocal Repertoires Revealed Using Contrastive Representation Learning

First-author research paper currently under review by the journal Bioacoustics.

The work investigates acoustic repertoire structure, call families, subtype organisation and environmental relationships in underwater seal vocalisations.

BioacousticsUnder reviewRepresentation learningSeal repertoires

Conference papers

Collaborative acoustic monitoring research.

Automated Classification of Vocalisations from Wild and Captive Seal Populations

Collaborative conference paper with the University of Bath and Celtic Sea Power exploring labelled seal call classes and spectrogram-based classification.

Open PDF

Power and Accuracy Trade-Offs for Machine Learning Methods Applied to Detection of Underwater Sound Sources

Conference paper comparing waveform and spectrogram-based approaches for underwater acoustic classification, including performance and computational trade-offs.

Open PDF

Acoustic structure

Short spectrogram examples demonstrate call morphology and review context.

Repertoire analysis

Visual acoustic evidence supports transparent discussion of classification and uncertainty.

The research direction is not just automated detection. It is biologically interpretable repertoire analysis for better passive acoustic monitoring.