Tag: fish

Plain language summaries, Research summaries

Navegando los obstáculos del río: La influencia de la tipología de presas de baja altura y la hidrología fluvial en la conectividad genética de los peces

Los ríos están llenos de pequeñas represas que vuelven el curso del agua más lento y complican el desplazamiento de organismos acuáticos (por ejemplo, de los peces). Estas pequeñas represas por lo general solo tienen unos metros de altura y están presentes a través del mundo. Ya que no es posible eliminar todas estas represas, es fundamental identificar cuáles (o más bien qué características) representan … Continue reading Navegando los obstáculos del río: La influencia de la tipología de presas de baja altura y la hidrología fluvial en la conectividad genética de los peces

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Plain language summaries, Research summaries

Naviguer à travers les obstacles fluviaux : L’influence de la typologie des barrages de faible hauteur et de l’hydrologie des rivières sur la connectivité génétique des poissons

Les rivières sont parsemées de petits barrages qui ralentissent l’eau et compliquent les déplacements des organismes aquatiques, tels que les poissons. Ces petits barrages mesurant généralement quelques mètres de haut sont des millions dans le monde. Comme il est impossible de tous les supprimer, il est essentiel d’identifier ceux qui posent les plus gros problèmes pour le déplacement de la faune aquatique. Dans notre étude, … Continue reading Naviguer à travers les obstacles fluviaux : L’influence de la typologie des barrages de faible hauteur et de l’hydrologie des rivières sur la connectivité génétique des poissons

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Plain language summaries, Research summaries

Navigating river obstacles: The influence of the typology of low-head dams and river hydrology on fish genetic connectivity

Rivers are dotted with countless small dams that slow the flow of water and disrupt connections between fish populations. These structures, known as low-head dams, typically stand only a few metres tall, yet millions exist worldwide. Since removing all of them is unrealistic, it is crucial to identify which ones most strongly hinder aquatic wildlife movement. In our study, we set out to understand how … Continue reading Navigating river obstacles: The influence of the typology of low-head dams and river hydrology on fish genetic connectivity

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Coastal and marine, Human-wildlife interactions, Research summaries, Video

Does incorporating complexity into coastal engineering increase fish diversity along urban shorelines?

Authors of a recently published research article explain how, to enhance fish diversity, it is important to provide three-dimensional habitat architecture that incorporates a wide range of microhabitat sizes and types.  Habitat complexity Habitat complexity is a key driver of marine fish diversity and essential for determining structure and function of fish communities. Many fishes use benthic habitat features (e.g. holes, crevices, vertical reliefs, and … Continue reading Does incorporating complexity into coastal engineering increase fish diversity along urban shorelines?

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Careers, Citizen science, Coastal and marine, Invasive species, Pathogens and disease, Research summaries

Samuel Fischer: How can invasive species management benefit from smartphone data?

Shortlisted for the 2023 Southwood Prize Samuel Fischer discusses how he and colleagues researched and utilised an angler smartphone app to build a stochastic model for angler traffic in the Canadian province of Alberta. Anglers facilitate the spread of whirling disease, a parasite-induced fish disease, meaning this model demonstrates the importance of individual-specific behaviour of vectors for propagule transport. From smartphone data to invasive species … Continue reading Samuel Fischer: How can invasive species management benefit from smartphone data?

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Careers, Freshwater, Policy, Practitioners, Research summaries, Restoration

Will fish passages alone resolve our river fragmentation problems?

Shortlisted for the Chico Mendes Prize 2023 In their latest Practice Insights article, Henry Hansen and colleagues present a case study that applies a new method to improve current fish habitat models and better guide future restoration efforts. Fragmentation has become a consistent impact in rivers as society’s need for renewable energy continues to grow. The proliferation of hydropower plants supports the world’s shared goal … Continue reading Will fish passages alone resolve our river fragmentation problems?

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Coastal and marine, Monitoring and methods, Research summaries

Long-term Monitoring: The key to unlocking effective Marine Protected Area Management?

Christopher Honeyman talks us through recently published work which compared three Marine Protected Area (MPA) monitoring techniques, along with colleagues. Interestingly, each technique was shown to survey distinct groundfish community assemblages with varying levels of species diversity and richness. Therefore, combining multiple techniques may better allow managers to create the most comprehensive, effective and inclusive MPA monitoring regimes. A global phenomenon In response to human-caused … Continue reading Long-term Monitoring: The key to unlocking effective Marine Protected Area Management?

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Coastal and marine, Editor's Choice, Monitoring and methods, Research summaries

Editor’s Choice 60:10 Can management measures be used to reduce the impact of extreme events in the early life of fish?

Author Lucie Buttay summarises Journal of Applied Ecology’s October’s Editor’s Choice research article. Conducted with colleagues, this study used a life cycle model to simulate ‘what if’ scenarios around Northeast Arctic cod eggs and larvae. Extreme climatic events, (e.g. heat waves and storms) are becoming more frequent and intense, and on top of that, the ever-growing development of human activities at sea, entails an increasing … Continue reading Editor’s Choice 60:10 Can management measures be used to reduce the impact of extreme events in the early life of fish?

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Coastal and marine, Human-wildlife interactions, Monitoring and methods, Research summaries

Towards environmentally friendly finfish farming: A potential for mussel farms to compensate fish farm effluents

Jonne Kotta explains new research which uses dynamic energy budget modelling to explore the potential of mussels for bioremediation at finfish farms. Kotta and colleagues suggest that environmentally sustainable finfish farming solutions may be possible in the eutrophic Baltic Sea region. The problem Global demand for fish has risen sharply in recent decades and will surely continue to rise during the next decade. However, this … Continue reading Towards environmentally friendly finfish farming: A potential for mussel farms to compensate fish farm effluents

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Coastal and marine, The Applied Ecologist community

From blind amoeba to Nemo: the evolution of fish (and vertebrate) vision

This blog is part of our colourful countdown to the holiday season where we’re celebrating the diversity and beauty of the natural world. In this post, Martin Luehrmann of The University of Queensland takes us on a journey through the development of sight through the evolution of fish and early vertebrates. Imagine waking up and the world is black, your eyelids won’t open. You are … Continue reading From blind amoeba to Nemo: the evolution of fish (and vertebrate) vision

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