Marine Species Chemical Ecology

A special issue of Diversity (ISSN 1424-2818). This special issue belongs to the section "Marine Diversity".

Deadline for manuscript submissions: 31 October 2026 | Viewed by 1873

Editors


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Guest Editor
Department of Biomedical Sciences, University of Cagliari, Cagliari, Italy
Interests: insect and crustacean physiology; taste and olfaction; transduction mechanisms of chemosensory systems; chemicals of feeding and reproductive significance; electrophysiology; behavior; biodiversity; alien species; pest management
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Guest Editor
Department of Life and Environmental Science, University of Cagliari, Cagliari, Italy
Interests: ecology of the Atlantic bluefin tuna; Thunnus thynnus; migration and environmental interaction; reproductive biology; tagging, management and stock conservation; ecology of sea urchins and sea cucumbers; manipulative tests in mesocosms; reproduction and breeding of P. lividus; behavioral tests of echinoderms and other marine invertebrates

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Guest Editor
Department of Life and Environmental Sciences, University of Cagliari, Cagliari, Italy
Interests: experimental marine ecology; field and mesocosm manipulation experiments; experimental aquaculture of novel species; sea urchins (P. lividus); sea cucumbers (H. tubulosa); behavioral tests of marine invertebrates; chemotaxis of the sea urchins; bioremediation of seafloor with detritivores; cultivation and biochemical composition of the macroalgae Ulva sp.

Special Issue Information

Dear Colleagues,

The use of chemical signals by animals is widespread in all environments, including marine habitats, where changes in behavior after the detection of waterborne compounds have been extensively documented for many species and in different behavioral contexts.

Marine animals rely on chemical cues for spatial orientation, social communication, parental cares, larval settlement, avoidance of predators or injured conspecifics, identification of suitable habitats for reproduction, sex recognition and localization of food resources. Marine animals with external fertilization may also use chemicals in breeding aggregations and spawning synchrony strategies to enhance the probability of gamete encounters. Therefore, understanding the roles of marine chemicals and the sensory systems providing animals with information about them gives us insight into the chemical ecology of different species.

This Special Issue provides a platform to highlight new research findings by further advancing the frontiers of knowledge regarding the chemical ecology of marine animals from a wide range of taxa. It may lead to the implementation of new management solutions for the sustainable use of marine resources and aquaculture purposes, the maintenance of healthy ecosystems, the control of invasive alien species, and biodiversity conservation.

We will accept reviews as well as short and long research papers that cover these topics.

Dr. Paolo Solari
Dr. Addis Piero
Dr. Viviana Pasquini
Guest Editors

Manuscript Submission Information

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Keywords

  • ecological aspects
  • habitat selection
  • aquaculture
  • olfaction
  • taste
  • food choice
  • invasive alien species
  • population control strategies
  • mesocosm experiments

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Published Papers (1 paper)

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Research

14 pages, 2147 KB  
Article
Effect of Different Algal Biofilms on the Larval Settlement of the Holothuria tubulosa Sea Cucumber (Gmelin, 1788)
by Viviana Pasquini, Massimo Milia, Francesco Palmas, Alberto Angioni, Colin Hannon, Paolo Solari and Pierantonio Addis
Diversity 2026, 18(4), 204; https://doi.org/10.3390/d18040204 - 30 Mar 2026
Viewed by 1261
Abstract
The increasing exploitation of sea cucumbers has driven widespread population declines, highlighting the need to improve knowledge and understanding of the early life history stages of exploited species such as Holothuria tubulosa, one of the most common holothurians along Mediterranean coasts. This [...] Read more.
The increasing exploitation of sea cucumbers has driven widespread population declines, highlighting the need to improve knowledge and understanding of the early life history stages of exploited species such as Holothuria tubulosa, one of the most common holothurians along Mediterranean coasts. This study investigated larval settlement success and juvenile early survival of H. tubulosa larvae, considering two algal biofilms as settlement cues: the diatom Amphora sp. and the green alga Ulvella lens. Larvae were reared under controlled hatchery conditions, and, once reaching the doliolaria stage, larvae were individually exposed to biofilm-conditioned substrates vs. a control without biofilm. Settlement dynamics and larval development were monitored over 35 days and analysed using generalised linear mixed models, while the biochemical composition of the biofilms was assessed through protein, carbohydrate, and lipid quantifications. Larvae exposed to algal biofilms successfully settled and metamorphosed, whereas no settlement occurred in the control. U. lens induced the highest settlement success (54%) and supported subsequent juvenile development, while Amphora sp. resulted in lower settlement rates (21%) and higher post-settlement mortality. Although Amphora sp. showed higher protein and carbohydrate content, settlement and survival were enhanced on U. lens, suggesting that biofilm structure and biochemical cues play a primary role in regulating settlement processes. These findings improve the understanding of settlement mechanisms in H. tubulosa and provide valuable insights for hatchery production, conservation strategies, and the sustainable aquaculture of Mediterranean sea cucumbers. Full article
(This article belongs to the Special Issue Marine Species Chemical Ecology)
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