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Fishing promotes small, shy fish

Fishing primarily removes larger and more active fish from populations. It thus acts as a selection factor that favours shy fish, as a recent study by IGB shows. 
press release

Defeating the enemy within

According to scientific theories, clonal vertebrates actually have a harder time succeeding than species that reproduce sexually. The Amazon molly proves otherwise. It has found a way to deal with the challenges of its origin and reproduction.
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Small freshwaters defy the storms

A team with Hans-Peter Grossart has researched how resistant small freshwaters are to storms – they are amazingly resilient. And the rapid recovery from heavy rainfall is mainly thanks to microorganisms.
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Aquaculture: Environmental‐friendly treatment for fish diseases

Velvet disease is a dreaded ailment. This infection is caused by dinoflagellates of the genera Amyloodinium and Piscinoodinium, and affects freshwater and marine ornamental and food fish. In her PhD thesis, Thora Lieke combined the risks and benefits of current treatment options and new approaches.
press release

Acid rain is yesterday’s news?

Acid rain seems to be a thing of the past, yet sulphate continues to rise in many inland waters worldwide. A new study provides an overview of the sources of sulphate and its effects on freshwater ecosystems. 
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The long arm of opencast mining

Giulia Friedland and Michael Hupfer have investigated whether and to what extent mining products from the Lusatian mining are deposited in the sediments of the River Spree: their signature in the river bed reaches 90 kilometres.
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Tracking fish in the ocean

A team with Robert Arlinghaus has developed a high-resolution telemetry system for use in coastal areas. With this system, the positions and movements of hundreds of tagged fish can be determined with a sub-meter positioning. 
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Invasion is independent of personality

Researchers from IGB and the Zoological Research Museum Alexander Koenig studied guppies to investigate the linkage between behavioural types and dispersal tendencies – important for understanding biological invasions.

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