Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Habitat Fragmentation02:31

Habitat Fragmentation

17.9K
Habitat fragmentation describes the division of a more extensive, continuous habitat into smaller, discontinuous areas. Human activities such as land conversion, as well as slower geological processes leading to changes in the physical environment, are the two leading causes of habitat fragmentation. The fragmentation process typically follows the same steps: perforation, dissection, fragmentation, shrinkage, and attrition.
17.9K
Mechanistic Models: Compartment Models in Individual and Population Analysis01:23

Mechanistic Models: Compartment Models in Individual and Population Analysis

87
Mechanistic models are utilized in individual analysis using single-source data, but imperfections arise due to data collection errors, preventing perfect prediction of observed data. The mathematical equation involves known values (Xi), observed concentrations (Ci), measurement errors (εi), model parameters (ϕj), and the related function (ƒi) for i number of values. Different least-squares metrics quantify differences between predicted and observed values. The ordinary least...
87
Osmoregulation in Fishes02:32

Osmoregulation in Fishes

50.5K
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?
50.5K
Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

105
Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
105
Multi-species Conserved Sequences02:51

Multi-species Conserved Sequences

4.3K
Next-generation sequencing technologies have created large genomic databases of a variety of animals and plants. Ever since the human genome project was completed, scientists studied the genome of primates, mammals, and other phylogenetically distant living beings. Such large-scale  studies have provided new insights into the evolutionary relationship between organisms.
Although the genome of each species varies greatly from each other, a few sequences are highly conserved. Such conserved...
4.3K
What are Populations and Communities?00:30

What are Populations and Communities?

34.9K
Overview
34.9K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Assessing the Combined Effects of Bifenthrin and Temperature on Early Life Stage Sturgeon.

Environmental research·2026
Same author

Quantifying the evolutionary potential for Delta Smelt persistence in a warming habitat.

bioRxiv : the preprint server for biology·2026
Same author

Tracking pesticide accumulation in juvenile Chinook Salmon during outmigration through the Sacramento-San Joaquin River Delta.

Environmental pollution (Barking, Essex : 1987)·2026
Same author

Challenging 10 misconceptions in conservation physiology.

Conservation physiology·2026
Same author

Chemical pollution alters detoxification capacity and behavior in the native freshwater fish Galaxias maculatus under in situ exposure.

Environmental pollution (Barking, Essex : 1987)·2026
Same author

Highly and Lowly Domesticated Endangered Fish From a Conservation Hatchery Diverge in Their Thermal Physiology, Transcriptome, and Methylome.

Evolutionary applications·2026

Related Experiment Video

Updated: Sep 15, 2025

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling SAHM
12:26

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling SAHM

Published on: October 11, 2016

13.4K

Assessing Patterns and Risk to Chilean Freshwater Fish Distributions Using Multi-Species Occupancy Models.

Erin E Tracy1, Evelyn Habit2,3, Konrad Górski4,5

  • 1Department of Wildlife, Fish & Conservation Biology University of California Davis Davis California USA.

Ecology and Evolution
|July 16, 2025
PubMed
Summary
This summary is machine-generated.

This study used multispecies occupancy models to predict freshwater fish biodiversity in Chile, identifying key drivers of species richness and occupancy. Findings highlight risks from hydropower development, aiding conservation efforts for vulnerable species.

Keywords:
aquatic conservationbiodiversitydata‐limitedfreshwater fishmultispecies occupancy modelsrivers

More Related Videos

A Standardized Procedure for Monitoring Harmful Algal Blooms in Chile by Metabarcoding Analysis
09:47

A Standardized Procedure for Monitoring Harmful Algal Blooms in Chile by Metabarcoding Analysis

Published on: August 26, 2021

5.4K
Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools
09:32

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools

Published on: November 20, 2017

9.4K

Related Experiment Videos

Last Updated: Sep 15, 2025

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling SAHM
12:26

Integrating Remote Sensing with Species Distribution Models; Mapping Tamarisk Invasions Using the Software for Assisted Habitat Modeling SAHM

Published on: October 11, 2016

13.4K
A Standardized Procedure for Monitoring Harmful Algal Blooms in Chile by Metabarcoding Analysis
09:47

A Standardized Procedure for Monitoring Harmful Algal Blooms in Chile by Metabarcoding Analysis

Published on: August 26, 2021

5.4K
Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools
09:32

Development of New Methods for Quantifying Fish Density Using Underwater Stereo-video Tools

Published on: November 20, 2017

9.4K

Area of Science:

  • Ecology
  • Conservation Biology
  • Fisheries Science

Background:

  • Freshwater ecosystems face rapid biodiversity decline, especially in data-limited regions.
  • Chilean watersheds harbor endemic and vulnerable freshwater fish assemblages requiring urgent research and management.
  • Multispecies occupancy models are underutilized in fisheries ecology despite their potential.

Purpose of the Study:

  • To predict species richness and occupancy of freshwater fish in Chilean watersheds using multispecies occupancy models.
  • To identify environmental drivers influencing fish species distribution and assemblage-level patterns.
  • To assess the impact of hydropower development and aquatic ecosystem fragmentation on vulnerable fish populations.

Main Methods:

  • Employed latent spatial multispecies occupancy models to simultaneously analyze multiple fish species.
  • Modeled species-specific and assemblage-level responses to hydro-geomorphological conditions.
  • Accounted for imperfect species detection rates in occupancy estimations.

Main Results:

  • Fish species richness was primarily negatively correlated with elevation; individual species showed variable responses to environmental drivers.
  • Predicted occupancy maps were generated for native and nonnative fish species.
  • Significant hydropower development is planned in river basins with high predicted species richness, indicating potential fragmentation risks.

Conclusions:

  • The study provides critical insights for freshwater fish conservation in Chile, particularly for endangered and data-deficient species.
  • The modeling framework offers a robust approach for integrating ecological insights into conservation planning for data-limited systems.
  • Findings underscore the need for strategic planning to mitigate the impacts of hydropower development on vulnerable freshwater biodiversity.