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Updated: May 5, 2026

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

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沿岸のレクリエーションマリーナでの非原生種の監視のためのサンプル採取設計の最適化:タグス河口事例研究からの洞察

I Afonso1, J Lobo-Arteaga2, J E Kakkonen3

  • 1MARE - Marine and Environmental Sciences Centre, ARNET - Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa Campo Grande, 1749-016 Lisboa, Portugal.

Marine pollution bulletin
|August 30, 2025
PubMed
まとめ

非本土種 (NIS) の効果的な監視は極めて重要です. タグス河口でのこの研究では,サイズではなくマリーナの位置が,NISの侵入性を最もよく予測し,傾向を検出するために4つの複製サンプルを推奨しました.

キーワード:
バイオファウリング生物学的侵入マクロ無脊椎動物監視リクリエーション・マリーナタグス河口

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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...
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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...
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