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- Title
Tropical cyclone impacts on seagrass-associated fishes in a temperate-subtropical estuary.
- Authors
Zhang, Y. Stacy; Swinea, Savannah H.; Roskar, Grace; Trackenberg, Stacy N.; Gittman, Rachel K.; Jarvis, Jessie C.; Kenworthy, W. Judson; Yeager, Lauren A.; Fodrie, F. Joel
- Abstract
Major storms can alter coastal ecosystems in several direct and indirect ways including habitat destruction, stormwater-related water quality degradation, and organism mortality. From 2010–2020, ten tropical cyclones impacted coastal North Carolina, providing an opportunity to explore ecosystem responses across multiple storms. Using monthly trawl and contemporaneous seagrass surveys conducted in Back Sound, NC, we evaluated how cyclones may affect the nursery role of shallow-water biogenic habitats by examining seagrass-associated fish responses within a temperate-subtropical estuary. We employed a general before-after-control-impact approach using trawls conducted prior (before) and subsequent (after) to storm arrival and years either without (control) or with (impact) storms. We examined whether effects were apparent over short (within ~three weeks of impact) and seasonal (May-October) timescales, as well as if the magnitude of storm-related shifts varied as a function of storm intensity. Our findings suggest that the ability of these shallow-water habitats to support juvenile fishes was not dramatically altered by hurricanes. The resilience exhibited by fishes was likely underpinned by the relative persistence of the seagrass habitat, which appeared principally undamaged by storms based upon review of available–albeit limited seagrass surveys. Increasing cyclone intensity, however, was correlated with greater declines in catch and may potentially underlie the emigration and return rate of fish after cyclones. Whether estuarine fishes will continue to be resilient to acute storm impacts despite chronic environmental degradation and predicted increases major tropical cyclone frequency and intensity remains a pressing question.
- Subjects
NORTH Carolina; TROPICAL cyclones; ESTUARINE fishes; HURRICANES; SEAGRASS restoration; SEAGRASSES; HABITAT destruction; ESTUARIES; ENVIRONMENTAL degradation
- Publication
PLoS ONE, 2022, Vol 17, Issue 10, p1
- ISSN
1932-6203
- Publication type
Article
- DOI
10.1371/journal.pone.0273556