Video Experimental Relacionado

Updated: May 7, 2026

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

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

Published on: November 20, 2017

Pesca: los peces de aguas profundas califican como en peligro de extinción

Jennifer A Devine¹, Krista D Baker, Richard L Haedrich

¹Department of Biology, Memorial University, St John's, Newfoundland A1C 5S7, Canada. jdevine@mun.ca

|January 7, 2006

Resumen

Cinco especies de peces de aguas profundas en el noroeste del Atlántico ahora cumplen con los criterios de en peligro crítico debido a la pesca en aguas profundas. Se necesita una gestión urgente y sostenible de la pesca para proteger a estas poblaciones marinas vulnerables.

Área de la Ciencia:

Biología Marina Biología Marina.
Pesca Ciencia Pesca Ciencia
Biología de la Conservación Biología de la Conservación.

Sus antecedentes:

La Unión Mundial para la Conservación (UICN) ha clasificado a los peces marinos en peligro de extinción desde 1996.
Los peces de aguas profundas siguen sin ser valorados a pesar de los rasgos de la historia de la vida que los hacen vulnerables a la pesca en aguas profundas.

Objetivo del estudio:

Evaluar el estado de conservación de los peces de aguas profundas en aguas canadienses.
Evaluar el impacto de la pesca de aguas profundas en las poblaciones de peces de aguas profundas.

Principales métodos:

Análisis de 17 años de datos de encuestas de investigación del Atlántico noroeste canadiense.
Aplicación de los criterios de la UICN para la clasificación de especies en peligro.

Principales resultados:

Cinco especies de peces de aguas profundas presentaron disminuciones significativas de la población en 17 años.
Estas disminuciones cumplieron con los criterios de la UICN para el estatus de especie en peligro crítico.

Conclusiones:

Las poblaciones de peces de aguas profundas de la región están en peligro crítico de extinción.
La acción inmediata para la gestión sostenible de la pesca de aguas profundas es imperativa.

Más Videos Relacionados

Necropsy-based Wild Fish Health Assessment

Necropsy-based Wild Fish Health Assessment

Published on: September 11, 2018

Design and Use of an Apparatus for Quantifying Bivalve Suspension Feeding at Sea

Design and Use of an Apparatus for Quantifying Bivalve Suspension Feeding at Sea

Published on: September 5, 2018

Videos de Conceptos Relacionados

What is an Ecosystem?

What is an Ecosystem?

Keystone Species

Keystone Species

Measures of species biodiversity, such as richness (i.e., the number of species present) and evenness (i.e., their relative abundance), describe an ecological community’s structure. Many factors affect community structure, including abiotic factors (e.g., sunlight and nutrients), disturbances (e.g., fire or flood), species interactions (e.g., predation or competition), and chance events (e.g., foreign species invasion). Certain species—such as keystone species—also play a...

Sustainable Development

Sustainable Development

As the human population continues to grow and use resources, we must be mindful of our planet’s natural limits. Sustainable development provides a pathway to maintain and improve human life now while also ensuring that future generations will have the resources that they need. The long-term success of sustainability efforts rests on understanding the interplay between human actions and ecological systems.

Conservation of Small Populations

Conservation of Small Populations

Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...

Conservation of Declining Populations

Conservation of Declining Populations

Conservation of declining population focuses on ways of detecting, diagnosing, and halting a population decline. The approach uses methods to prevent populations from going extinct.

Deep Sea Microbial Ecology

Deep Sea Microbial Ecology

The deep ocean and its underlying sediments represent vast, largely unexplored microbial habitats that extend far beyond the sunlit photic zone. The photic (euphotic) zone typically spans the upper ~100–200 meters of pelagic waters in the open ocean, but its depth varies geographically and seasonally, where sufficient light supports photosynthetic life. Below this lies the deep sea, spanning roughly 1000–6000 meters (bathypelagic to abyssal zones), with deeper hadal trenches...