Fish biology, ecology, and behavior

Detection and localization of conspecifics in ghost knifefish are influenced by the relationship between the spatial organization of receptors and signals.

The paper models how receptor density affects signal detection and localization in ghost knifefish, finding that higher density improves detection but not localization for diffuse signals.

Spatial coding of conspecifics in subpopulations of hindbrain pyramidal cells of the gymnotiform electrosensory system

The paper investigates how subpopulations of hindbrain pyramidal cells in weakly electric fish encode spatial information about conspecifics, finding that specific cell types provide more accurate spatial coding.

Latent feeding behaviors promote trophic versatility in cichlids

The paper shows cichlid fish use similar benthic feeding behaviors regardless of their ecological niche, suggesting latent feeding behaviors support trophic versatility.

Whole-body central processing of lateral line inputs encodes flow direction relative to the center-of-mass

The paper shows that larval zebrafish encode flow direction relative to their center-of-mass in the hindbrain, enabling motor responses to fluid motion.

Molecular insights into electroreceptor ribbon synapses from differential gene expression in sturgeon lateral line organs

The paper examines gene expression in electroreceptor and mechanosensory organs of sturgeon, identifying shared and distinct molecular features of their ribbon synapses.

Interactive electrical behaviour in mormyrid weakly electric fish: Jamming avoidance response or social interaction?

This study examines interactive electrical behaviours in mormyrid fish, finding they are not primarily for jamming avoidance but instead support social cohesion and communication.

The taxonomic status of Farlowella colombiensis Retzer & Page 1997 with comments on species of the F. acus species group (Loricariidae: Loricariinae).

The paper reassesses the taxonomic status of Farlowella colombiensis and finds it to be a junior synonym of Farlowella acus, providing a key and remarks on species in the F. acus group.

Direct cerebellar control over motor production in a species with extreme cerebellar enlargement

This study shows that the cerebellum in elephant-nose fish directly controls motor production, challenging the view that cerebellum only fine-tunes movement.

Mechanistic insights into gene expression changes and electric organ discharge elongation in mormyrid electric fish

The paper investigates gene expression changes associated with EOD elongation in mormyrid electric fish using hormone-induced treatment and RNAseq analysis.

An end-to-end model of active electrosensation

The paper develops an end-to-end model of electrosensation in weakly electric fish, using artificial data to train an ANN that extracts object properties.

Tracking spatial patterns and nocturnal arousal in an undisturbed natural population of the pulse-type weakly electric fish Gymnotus omarorum

The paper develops remote tracking methods for wild electric fish and confirms nocturnal arousal linked to temperature changes.

Life on the road: fish communities composition in roadside ditches of the Atlantic Forest

The paper assesses fish community composition in roadside ditches of the Atlantic Forest, finding higher species richness during the wet season and dispersal limitation as a key structuring factor.

Collective Sensing in Electric Fish

This study shows African weakly electric fish use conspecifics' electrical pulses to enhance electrolocation, object discrimination, and information transmission.

Neural Readout of a Latency Code in the Active Electrosensory System

The paper shows that in mormyrid fish, postsynaptic neurons use both spike latency and spike count from electroreceptor afferents to encode stimulus amplitude, without relying on motor corollary discharge.

Functional and ultrastructural analysis of reafferent mechanosensation in larval zebrafish

This study investigates how zebrafish larvae distinguish self-generated reafferent mechanosensory signals from exafferent stimuli using lateral line hair cells and neural circuits.

Mixed selectivity coding of sensory and motor social signals in the thalamus of a weakly electric fish

The paper investigates how mixed selectivity codes sensory and motor social signals in the thalamus of weakly electric fish, showing their role in social behavior and dominance.

The early development and physiology of Xenopus laevis tadpole lateral line system

The study investigates the physiological role of the Xenopus laevis tadpole lateral line system, showing that activating the anterior lateral line evokes escape responses and halts ongoing swimming.

Spooky interaction at a distance in cave and surface dwelling electric fishes

The paper studies electrosensory interactions in cave and surface dwelling electric fish, finding sustained frequency differences and long-distance interactions despite expected jamming avoidance.

Signal diversification is associated with corollary discharge evolution in weakly electric fish

The paper investigates how corollary discharge inhibition coevolves with electric organ discharge (EOD) duration in mormyrid fish, finding a strong correlation between inhibition delays and EOD timing.

Brain-wide mapping of water flow perception in zebrafish

The paper maps neurons involved in water flow perception in larval zebrafish using calcium imaging and microfluidic stimulation, revealing diverse response types and brain regions involved.

Motor behaviour selectively inhibits hair cells activated by forward motion in the lateral line of Zebrafish

The paper shows motor behaviour selectively inhibits hair cells activated by forward motion in zebrafish lateral line, suppressing self-generated signals while preserving sensitivity to external stimuli.

Efferent Modulation Of Spontaneous Lateral Line Activity During And After Zebrafish Motor Commands

The paper investigates how efferent neurons modulate lateral line afferent activity during and after zebrafish swimming, showing that inhibitory efferents reduce afferent spiking and that this effect persists beyond the active swimming phase.

Neural activity in a hippocampus-like region of the teleost pallium are associated with navigation and active sensing

The paper characterizes neural activity in a hippocampal-like region of a teleost fish brain and links active sensing to spatial navigation.

Neural processing of communication signals: The extent of sender-receiver matching varies across species of Apteronotus

This study compares neural coding strategies in two closely related weakly electric fish species, finding differences in how they encode communication signals, which correlates with their behavioral use of these signals.

Sensory tuning does not match behavioral relevance of communication signals in free-living weakly electric fish

The paper quantifies sensory scenes in free-living weakly electric fish and finds that sensory neuron tuning does not align with the frequency of behaviorally relevant communication signals.

Task-specific sensory coding strategies matched to detection and discrimination behaviors in Apteronotus leptorhynchus

The paper shows that Apteronotus leptorhynchus uses two distinct neural coding strategies for detection and discrimination tasks, with behavioral performance matching coding strategies.