Marine Biodiversity and Ecophysiology Under Changing Marine Habitats

A special issue of Journal of Marine Science and Engineering (ISSN 2077-1312). This special issue belongs to the section "Marine Biology".

Deadline for manuscript submissions: 10 July 2025 | Viewed by 956

Special Issue Editors


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Laboratory of Zoogeography and Fauna, DiSTeBA (Department of Biological and Environmental Sciences and Technologies), University of Salento, Campus Ecotekne, 73100 Lecce, Italy
Interests: pelagic biodiversity; zoology; ecology and evolution; aquatic ecosystems; zooplankton; marine biology; crustacea copepoda; biogeography; aquatic fauna; systematics (taxonomy); species list; biometry; invasive species; submarine caves; scientific museum
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Special Issue Information

Dear Colleagues,

Marine biodiversity is correlated with the health and stability of marine habitats. Biodiversity is significantly impacted by variations in environmental conditions, whether due to natural processes or anthropogenic activities. Addressing the challenges posed by changing marine habitats requires a comprehensive and integrated approach to preserve their rich biodiversity. Apart from the recognition of how many life strategies (the biodiversity) can co-exist in the same habitat and the complex frame in which this goal can be realized, a clarifying contribution comes from ecophysiology, which focuses on the acclimatation and responses of organisms to their natural habitats, particularly how they adapt, survive, and maintain their ecological roles in the present dynamic scenario. Ecophysiology elucidates the mechanisms behind diversity in marine environments, referring to the variations in physiological traits and functions at intra- and inter-species levels, as well as across different ecosystems, as a key component of biodiversity, underpinning ecological interactions and ecosystem functions.

This Special Issue aims to cover the most recent insights into research on marine biodiversity and ecophysiology under changing marine habitats, with a particular emphasis on emerging approaches and methodologies.

Prof. Dr. Genuario Belmonte
Dr. Maria Giulia Lionetto
Guest Editors

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Keywords

  • ontogenetic diversity
  • marine habitats
  • community dynamics
  • ecophysiology
  • physiological diversity
  • phenotypic plasticity
  • climate change
  • habitat stressors

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Published Papers (1 paper)

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Research

20 pages, 3701 KiB  
Article
Surviving in a Warmer Marine World: A Study on the Impact of Thermal Effluent on Posidonia oceanica Meadows and Associated Fish Assemblages in the Maltese Islands
by Alessio Marrone, Alessandro Rinaldi, Valeria Montalto, Adam Gauci, Francesca Ape, Henri Ringeard, Marco Spoto, Marco Martinez, Emanuela Claudia La Marca, Simone Mirto and Alan Deidun
J. Mar. Sci. Eng. 2025, 13(3), 475; https://doi.org/10.3390/jmse13030475 - 28 Feb 2025
Viewed by 547
Abstract
Ocean warming poses significant threats to coastal ecosystems. This study investigates the impact of thermal effluents from power plants, as proxies for climate-driven temperatures increase, on Posidonia oceanica meadows and associated fish communities. Using a gradient-based approach, we analyzed environmental variables, seagrass indicators, [...] Read more.
Ocean warming poses significant threats to coastal ecosystems. This study investigates the impact of thermal effluents from power plants, as proxies for climate-driven temperatures increase, on Posidonia oceanica meadows and associated fish communities. Using a gradient-based approach, we analyzed environmental variables, seagrass indicators, fish assemblages, and functional group (FG) dynamics across a thermal gradient extending from the effluent outfall itself. Results indicate that temperature is the dominant factor influencing P. oceanica, with reduced leaf length, shoot density, and rhizome weight characterizing samples closest to the effluent. Despite compensatory mechanisms, the overall photosynthetic biomass and resilience declined under thermal stress. Fish assemblages exhibited reduced species richness and biodiversity close to the thermal effluent, with opportunistic and thermophilic species dominating. An FG analysis revealed disrupted seasonal patterns, shifts in trophic dynamics, and functional compensation among species, highlighting potential ecological imbalances. Notably, transient predators thrived near the effluent, while more sedentary and temperate species were displaced. These findings underscore the cascading effects of rising temperatures on coastal habitats such as P. oceanica meadows and their associated communities, emphasizing the urgency for conservation measures. By identifying critical thresholds and adaptive responses, this study contributes valuable insights into the consequences of localized impacts of thermal stress on coastal biodiversity and ecosystem services. Full article
(This article belongs to the Special Issue Marine Biodiversity and Ecophysiology Under Changing Marine Habitats)
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