Freshwater Megafauna: Flagships for Freshwater Biodiversity under Threat

Savrina F Carrizo1, Sonja C Jähnig1, Vanessa Bremerich1

  • 1Dr. Sonja Jähnig (sonja.jaehnig@igb-berlin.de) is a group leader, Vanessa Bremerich a technician, Dr. Jörg Freyhof a project leader, Dr. Simone D. Langhans a postdoctoral researcher, and Fengzhi He a doctoral student at the Leibniz-Institute of Freshwater Ecology and Inland Fisheries, in Berlin, Germany; FH is also affiliated with the Institute of Biology at Freie Universität Berlin. Dr. Savrina F. Carrizo was a program officer with the International Union for Conservation of Nature (IUCN) Global Species Programme's Freshwater Biodiversity Unit at the time of this research. Dr. Ian Harrison is working for the IUCN Freshwater Fish Specialist Group, in Flagstaff, Arizona. Professor Klement Tockner currently serves as the president of the Austrian Science Fund, in Vienna. Dr. Christiane Zarfl is a junior professor at the Center for Applied Geosciences at Eberhard Karls Universität Tübingen, in Germany. Dr. William Darwall is the head of the IUCN Global Species Programme's Freshwater Biodiversity Unit, in Cambridge, United Kingdom.

Bioscience
|March 31, 2018
PubMed

Related Concept Videos

Threats to Biodiversity01:50

Threats to Biodiversity

There have been five major extinction events throughout geological history, resulting in the elimination of biodiversity, followed by a rebound of species that adapted to the new conditions. In the current geological epoch, the Holocene, there is a sixth extinction event in progress. This mass extinction has been attributed to human activities and is thus provisionally called the Anthropocene. In 2019 the human population reached 7.7 billion people and is projected to comprise 10 billion by...
27.2K
What is Biodiversity?01:19

What is Biodiversity?

Biodiversity describes the variety of living things at multiple organizational levels: genetic, species and ecosystem diversity. Species diversity includes all branches of the evolutionary tree from single-celled prokaryotic organisms, bacteria, and archaea, to the eukaryotic kingdoms: plants; animals; fungi; and protists. To date, there have been about 1.75 million species identified, and new species are discovered every week.
33.9K
Biodiversity and Human Values01:24

Biodiversity and Human Values

Human civilization relies on biodiversity in many ways. Sudden changes in species biodiversity result in environmental changes that can modify weather patterns and therefore human civilizations.
17.2K
Stereotype Threat and Self-fulfilling Prophecies02:09

Stereotype Threat and Self-fulfilling Prophecies

When we hold a stereotype about a person, we have expectations that he or she will fulfill that stereotype. A self-fulfilling prophecy is an expectation held by a person that alters his or her behavior in a way that tends to make it true. When we hold stereotypes about a person, we tend to treat the person according to our expectations. This treatment can influence the person to act according to our stereotypic expectations, thus confirming our stereotypic beliefs. Research by Rosenthal and...
42.5K
Osmoregulation in Fishes02:32

Osmoregulation in Fishes

When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?
53.2K
What is Conservation Biology?01:57

What is Conservation Biology?

Conservation biology is a scientific field that focuses on the preservation of biodiversity in order to protect ecosystems while meeting the needs of the human population. Humans require properly functioning ecosystems to maintain our supply of natural resources, including food, medicines, and building materials.
24.4K