Justin E. Campbell

Synergistic local and global stressors shape the phenology and physiological limits of a model red macroalga in South Florida

Fábio Nauer, Danielle C. Hatt, Alain Durán, Jolisa Velazquez et autres

Environmental variability, together with disturbance events, can control the distribution of benthic organisms because it defines the physical boundaries that species can tolerate. To examine how these factors influence the survival and physiological performance of a key benthic group (marine macroalgae), we …

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Influence of Environmental Factors on pH Buffering, Productivity, and Blue Carbon Storage in Contrasting Thalassia Testudinum Seagrass Meadows in La Parguera, Puerto Rico

Catherine Hernández Rodríguez, Johann Collazo Reyes, Denise Perez, Juan David Gónzalez-Corredor et autres

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Nutritional composition of forage resources consumed by Florida manatees (Trichechus manatus latirostris) vulnerable to seagrass decline in the Indian River Lagoon

Aarin-Conrad Allen, Danielle C. Sattelberger, Justin E. Campbell, Jérémy J. Kiszka

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Staminate flowers of the non-native seagrass, Halophila stipulacea, observed for the first time in Biscayne Bay, Florida, USA

Justin E. Campbell, Allison Patranella, Becca A. Hatchell, Bradley T. Furman et autres

Abstract Halophila stipulacea is a dioecious seagrass native to the Red Sea and the western Indian Ocean. It has rapidly expanded to the Mediterranean and Caribbean Seas. While sexual reproduction has been reported within its native range, observations of reproductive structures across …

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Physiological Responses of Pelagic Sargassum (Phaeophyceae) to Thermal Stress Vary by Species and Morphotype

Danielle C. Hatt, Fábio Nauer, Ligia Collado‐Vides, Justin E. Campbell

Sargassum (common name referring to pelagic species of the genus Sargassum) has increased in abundance across the Atlantic Ocean since 2011, with rising sea surface temperatures and nutrients hypothesized as potential drivers. However, a detailed understanding of sargassum thermal responses remains limited. …

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Seagrass Organic Carbon Stocks Are Not Correlated with Seagrass Abundance at Local Scale, but Loss of Seagrasses Does Lead to Decrease in Surficial Sediment Organic Carbon at the Seascape Scale in Bermuda

James W. Fourqurean, Johannes Renke Krause, Sarah A. Manuel, Kathryn A. Coates et autres

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Temperature Drives Seagrass Recovery Across the Western North Atlantic

Fee O. H. Smulders, Justin E. Campbell, Andrew H. Altieri, Anna R. Armitage et autres

Climate-driven shifts in herbivores, temperature, and nutrient runoff threaten coastal ecosystem resilience. However, ecological resilience, particularly for foundation species, remains poorly understood due to the scarcity of field experiments conducted across appropriate spatial and temporal scales that investigate multiple stressors. This study …

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Varying effects of climate change on the photosynthesis and calcification of crustose coralline algae: Implications for settlement of coral larvae

Jennifer M. Sneed, Justin E. Campbell, Audrey Looby, Giorgi Aurora et autres

Coral recruitment is critical to the maintenance of healthy coral reef ecosystems. Many coral species settle preferentially on certain crustose coralline algae (CCA) (e.g., Hydrolithon boergesenii) over others (e.g., Paragoniolithon solubile). Calcifying organisms like CCA are particularly susceptible to ocean acidification (OA), …

Seagrass organic carbon stocks are not correlated with seagrass abundance at local scale, but loss of seagrasses does lead to decrease in surficial sediment organic carbon at the seascape scale in Bermuda

James W. Fourqurean, Johannes Renke Krause, Sarah A. Manuel, K. A. Coates et autres

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Caricas Partner's Practical Field and Laboratory Guide

James W. Fourqurean, Johannes Krause, Juan González-Corredor, Justin E. Campbell

This field and laboratory guide describes the field and laboratory methods used to characterize blue carbon in seagrass meadows. It was developed for the Caribbean Carbon Accounting in Seagrass project and describes the protocols and methods used by the network. In brief, …

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First record of the seagrass Halophila stipulacea (Forsskal) Ascherson in the waters of the continental United States (Key Biscayne, Florida)

Justin E. Campbell, Aarin-Conrad Allen, Danielle C. Sattelberger, M. White et autres

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First record of the seagrass Halophila stipulacea (Forskkal) Ascherson in the waters of the continental United States (Key Biscayne, Florida)

Justin E. Campbell, Aarin-Conrad Allen, Danielle C. Sattelberger, M. White et autres

Abstract The first record of Halophila stipulacea is reported for the continental waters of the United States. In August 2024, a small meadow was identified inside Crandon Marina on Key Biscayne, Florida, USA. Following surveys have revealed that H. stipulacea has spread …

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