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2025
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| Online Access: | https://doi.org/10.5281/zenodo.18073029 |
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| _version_ | 1866901895694516224 |
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| author | Quoc Dao, Phu Quoc |
| author_facet | Quoc Dao, Phu Quoc |
| contents | <p><span>Monitoring acute environmental disturbances in mangrove ecosystems poses significant challenges due to substrate complexity and logistical constraints. This study introduces the Burrow Activity Ratio (BAR) as a novel, non-invasive bio-indicator for rapid assessment of hydrocarbon contamination. Field investigations were conducted in a tropical mangrove system following an acute oil spill, utilizing a comparative framework between disturbed and reference sites. Three distinct biological metrics were evaluated: (1) the BAR of brachyuran crabs, (2) a Gastropod Sentinel Indicator System (GSIS), and (3) a Biofilm Damage Index (BDI). Our results demonstrate that hydrocarbon exposure induced a significant suppression in faunal vigor, with BAR declining from 77.9% to 55.3% (p = 0.0057). Concurrently, mollusk density plummeted from 144 to 55 individuals per plot (p = 0.016), accompanied by severe degradation of pneumatophore-associated biofilms. The high sensitivity and statistical significance of BAR suggest its efficacy as a robust early-warning tool. This research provides a cost-effective, real-time monitoring proxy that bridges the gap between chemical analysis and ecological impact assessment in sensitive intertidal zones.</span></p> |
| format | Recurso digital |
| id | zenodo_https___doi_org_10_5281_zenodo_18073029 |
| institution | Zenodo |
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| publishDate | 2025 |
| publisher | Zenodo |
| record_format | zenodo |
| spellingShingle | BURROWING CRAB ACTIVITY AS AN EARLY INDICATOR OF HYDROCARBON CONTAMINATION IN MANGROVE SEDIMENTS: INTRODUCING THE BURROW ACTIVITY RATIO (BAR) Quoc Dao, Phu Quoc <p><span>Monitoring acute environmental disturbances in mangrove ecosystems poses significant challenges due to substrate complexity and logistical constraints. This study introduces the Burrow Activity Ratio (BAR) as a novel, non-invasive bio-indicator for rapid assessment of hydrocarbon contamination. Field investigations were conducted in a tropical mangrove system following an acute oil spill, utilizing a comparative framework between disturbed and reference sites. Three distinct biological metrics were evaluated: (1) the BAR of brachyuran crabs, (2) a Gastropod Sentinel Indicator System (GSIS), and (3) a Biofilm Damage Index (BDI). Our results demonstrate that hydrocarbon exposure induced a significant suppression in faunal vigor, with BAR declining from 77.9% to 55.3% (p = 0.0057). Concurrently, mollusk density plummeted from 144 to 55 individuals per plot (p = 0.016), accompanied by severe degradation of pneumatophore-associated biofilms. The high sensitivity and statistical significance of BAR suggest its efficacy as a robust early-warning tool. This research provides a cost-effective, real-time monitoring proxy that bridges the gap between chemical analysis and ecological impact assessment in sensitive intertidal zones.</span></p> |
| title | BURROWING CRAB ACTIVITY AS AN EARLY INDICATOR OF HYDROCARBON CONTAMINATION IN MANGROVE SEDIMENTS: INTRODUCING THE BURROW ACTIVITY RATIO (BAR) |
| url | https://doi.org/10.5281/zenodo.18073029 |