Damming and Its Effects on Fish

Damming and Its Effects on Fish

Fish that migrate between freshwater and sea ecosystems play a multitude of ecological roles. In the centuries since Europeans first colonized the Americas, damming and other disruptions to river connectivity have greatly decreased the migration opportunities of these species. Recent BioScience author Steven Mattocks of the University of Massachusetts, in Amherst, joins us on this episode of BioScience Talks to discuss the effects of lost habitat and river connectivity for these crucial fish. In particular, he explains that because of a dearth of information on pre-1950 conditions, past estimates of lost biomass may drastically underestimate the ecological harm of damming.

Jaksot(176)

Bridging the Gaps in Global Conservation

Bridging the Gaps in Global Conservation

To date, the conservation of global biodiversity has relied on a patchwork of international goals and national- and regional-level plans. Hampered by poor planning, competing interests, and an incompl...

9 Touko 201827min

One Thing Leads to Another: Causal Chains Link Health, Development, and Conservation

One Thing Leads to Another: Causal Chains Link Health, Development, and Conservation

The linkages between environmental health and human well-being are complex and dynamic, and researchers have developed numerous models for describing them. The models include attempts to bridge tradit...

11 Huhti 201827min

ASGSR Annual Meeting

ASGSR Annual Meeting

In October 2017, through the collaboration of the American Institute of Biological Sciences and the American Society for Gravitational and Space Research (ASGSR), BioScience Talks hit the road. We att...

14 Maalis 201849min

Urban Mind: Measuring the Benefits of Nature in Real Time

Urban Mind: Measuring the Benefits of Nature in Real Time

The positive mental health effects of nature exposure in urban environments are well known, and the literature on the subject is growing fast. However, many previous studies have relied only on cross-...

14 Helmi 201819min

Specimen Collection, Populations, and Biodiversity Science

Specimen Collection, Populations, and Biodiversity Science

The benefits of specimen collection are well known. Natural-history archives are increasingly used by researchers to investigate evolutionary processes, examine the effects of climate and environmenta...

10 Tammi 201820min

A Waterway Bounces Back following the Passage of the Clean Water Act

A Waterway Bounces Back following the Passage of the Clean Water Act

Although the aims of environmental legislation are well known, measuring the effects of regulation is often a difficult task. Inadequate data for baseline conditions and the recovery period can hamper...

8 Marras 201721min

Interdisciplinary Approaches to Wildlife Trade Management

Interdisciplinary Approaches to Wildlife Trade Management

The illicit wildlife trade is a multi-billion-dollar business that spans the globe. Unfortunately, efforts to control it have often fallen short, and massive numbers of organisms are regularly removed...

11 Loka 201729min

The Benefits and Pitfalls of Urban Green Spaces

The Benefits and Pitfalls of Urban Green Spaces

With the rapid expansion of the urban landscape, successfully managing ecosystems in built areas has never been more important. However, our understanding of urban ecology is far from complete, and th...

13 Syys 201726min

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