Tag: fish

Plain language summaries, Research summaries

Come migliorare la stima dell’abbondanza locale dei pesci costieri del Mediterraneo

Stimare quanti pesci vivono nelle aree costiere è fondamentale per proteggere gli ecosistemi marini e gestire le risorse in modo sostenibile. In questo studio, mettiamo in evidenza che il DNA presente nell’acqua di mare può aiutare a stimare meglio l’abbondanza dei pesci. Infatti, contare i pesci non è sempre facile. I metodi tradizionali, come quelli basati su catture di pesca, possono essere costosi, distruttivi o … Continue reading Come migliorare la stima dell’abbondanza locale dei pesci costieri del Mediterraneo

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Plain language summaries, Research summaries

Mejorando las estimaciones de la abundancia de los peces costeros del Mediterráneo

Conocer cuántos peces hay en nuestras costas es esencial para proteger los ecosistemas marinos y asegurar una gestión sostenible de los recursos. En este estudio, demostramos que el ADN que hay en agua de mar puede ser una herramienta clave para ayudar a predecir mejor la abundancia de dichos peces. Contar peces no siempre es tarea fácil. Los métodos tradicionales, como la pesca, pueden ser … Continue reading Mejorando las estimaciones de la abundancia de los peces costeros del Mediterráneo

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Plain language summaries, Research summaries

Comment mieux estimer l’abondance locale des poissons côtiers de Méditerranée

Estimer combien de poissons vivent dans les zones côtières est essentiel pour protéger les écosystèmes marins et gérer durablement les ressources. Dans cette étude, nous montrons que l’ADN présent dans l’eau de mer peut aider à mieux prédire l’abondance des poissons. En effet, compter les poissons n’est pas toujours simple. Les méthodes classiques, comme les captures de pêche, peuvent être coûteuses, destructrices ou difficiles à … Continue reading Comment mieux estimer l’abondance locale des poissons côtiers de Méditerranée

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How to better estimate local abundance of Mediterranean coastal fish

Estimating how many fish live in coastal areas is essential for protecting marine ecosystems and managing resources sustainably. In this study, we show that DNA present in seawater can help better predict fish abundance. Indeed, counting fish is not always easy. Traditional methods, such as fishing catches, can be costly, destructive, or difficult to implement in certain protected or dangerous areas. A recent method involves … Continue reading How to better estimate local abundance of Mediterranean coastal fish

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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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