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Cover image
Cover Image
Cover: This juvenile Apteronotus leptorhynchus, or brown ghost knifefish, belongs to one of approximately 200 species of South American gymnotiform weakly electric fishes. These animals use an active electrosense for foraging at night in often turbid waters as well as for communication. The total energetic cost of their electric behaviour, including generation and sensing of the electric field, is estimated to be about 30% of routine metabolic rate (Salazar et al., pp. 2459−2468). The articles in this special issue review the remarkable recent contributions of research on electric fishes to energetics and many other areas of biology. Photo credit: Guy l'Heureux. - PDF Icon PDF LinkTable of contents
Ecosystem engineers on tropical reefs in transition
Giant barrel sponges (GSBs) remain robust to rising seawater temperatures and have rapidly populated reefs stripped of coral cover by climate change. GBSs may be poised to become the dominant habitat-forming organisms in tropical reef ecosystems of the future. In this Review, Joseph Pawlik provides an integrative and critical assessment of research on giant barrel sponges.
JEB grants to support junior faculty
Learn about the grants that we launched in 2023 to support junior faculty from two of our awardees: Erin Leonard, Early-Career Researcher (ECR) Visiting Fellowship recipient, and Pauline Fleischmann, Research Partnership Kickstart Travel Grant recipient. The next deadline to apply is 28 November 2025.
Stressed salmon develop hallmarks of depression
Farmed salmon can experience high levels of CO2 and now Marco Vindas and colleagues report that fish which have experienced this form of stress show signs of fishy depression. They hope that understanding this could help farmers improve the fish's quality of life.
Extraordinary creatures: hummingbirds
Doug Altshuler and Ken Welch tell us about the extraordinary lives of hummingbirds, from their ability to hover during flight to their use of nectar as a primary food source.
