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Related Concept Videos

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Related Experiment Video

Updated: May 31, 2026

The Floating Lab: Standard Operational Procedure for Collecting and Filtering Seawater Samples from Operating Ferries for Environmental DNA Analysis
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The Floating Lab: Standard Operational Procedure for Collecting and Filtering Seawater Samples from Operating Ferries for Environmental DNA Analysis

Published on: August 1, 2025

Disentangle the Ecological Impact of Vessel Activities on Delphinids Ranging Strategy: An Interaction Probability

Wenzhi Lin1, Binshuai Liu1,2, Ruiqiang Zheng3

  • 1Marine Mammal and Marine Bioacoustics Laboratory, Institute of Deep-sea Science and Engineering, Chinese Academy of Sciences, Sanya, China.

Integrative Zoology
|May 28, 2026
PubMed
Summary

Marine traffic threatens aquatic ecosystems. Dolphin-watching vessels pose the greatest threat to delphinids in Beibu Gulf, driving habitat shifts and population decline, necessitating targeted conservation efforts.

Keywords:
Beibu GulfChinese white dolphindolphin‐watchingecotourismhumpback dolphin Sousa chinensisranging patternvessel activity

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

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Area of Science:

  • Marine Conservation
  • Ecosystem Stress
  • Maritime Traffic Impact

Background:

  • Increasing maritime traffic poses significant threats to aquatic ecosystems.
  • Marine conservation efforts face challenges due to conflicting stakeholder interests.
  • Prioritizing threats is crucial for effective conservation with limited resources.

Purpose of the Study:

  • To model dolphin occurrence and interaction probabilities with vessel activities.
  • To identify critical threats to a delphinid population in Beibu Gulf, China.
  • To develop a framework for prioritizing conservation interventions in marine environments.

Main Methods:

  • Maximum-entropy modeling of dolphin occurrence based on field sightings.
  • Calculation of interaction probabilities (IPs) between dolphins and vessel types.
  • Integration of space-time occupancy rates and dolphin occurrence probability.

Main Results:

  • Dolphin interaction probabilities with dolphin-watching vessels significantly decreased, indicating this as the primary threat.
  • Changes in interaction probabilities with traveling, stationary, and fishing vessels did not explain the observed shifts in dolphin ranging patterns.
  • Dolphin-watching activity was identified as the main driver of the spatial niche shift in the delphinid population.

Conclusions:

  • Changes in interaction probability can reflect threatened species' decision-making processes.
  • This approach offers a novel tool for assessing relative threat importance in multi-use marine areas.
  • The study provides a framework for prioritizing conservation actions in human-dominated seascapes.