Energy and Lipid Metabolism in Aquaculture Invertebrates: Mechanisms, Nutritional Modulation, and Applications

A special issue of Animals (ISSN 2076-2615). This special issue belongs to the section "Animal Physiology".

Deadline for manuscript submissions: 10 March 2026 | Viewed by 1094

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Department of Biology, Faculty of Marine and Environmental Sciences, Institute of Marine Research (INMAR), University of Cádiz, International Campus of Excellence of the Sea, 11510 Cádiz, Spain
Interests: physiology; crustaceans; fish; energy metabolism; digestion; digestive enzymes; immunology; diet development; aquaculture improvement
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IFAPA Centro Agua del Pino, 21450 Cartaya, Spain
Interests: fish biology; animal science; animal biology; fish physiology; aquaculture; physiology; fish stress and welfare; flatfishes
Special Issues, Collections and Topics in MDPI journals

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Guest Editor
Instituto Andaluz de Investigación y Formación Agraria, Pesquera, Alimentaria y de la Producción Ecológi-ca (IFAPA), Centro El Toruño, Junta de Andalucía, Camino Tiro Pichón s/n, 11500 El Puerto de Santa Ma-ría, Cádiz, Spain
Interests: Aquaculture; lipid metabolism; IMTAs

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Guest Editor Assistant
IFAPA Centro Agua del Pino, 21450 Cartaya, Spain
Interests: aquaculture; lipids metabolism; fatty acids; animal welfare; animal nutrition; marine science

Special Issue Information

Dear Colleagues,

This Special Issue focuses on advancing knowledge of energy and lipid metabolism in aquaculture invertebrates such as crustaceans, mollusks, echinoderms, and annelids. It aims at gathering original research and reviews that examine the physiological, biochemical, and molecular mechanisms regulating energy utilization and lipid dynamics in these species, which are increasingly important in global aquaculture. Key topics include lipid digestion, biosynthesis, β-oxidation, hormonal regulation, gene expression, and the role of environmental and nutritional factors. Special attention will be given to studies exploring the effects of feed composition, functional ingredients, and metabolic adaptation under changing farming conditions. This Special Issue also encourages contributions applying omics technologies, metabolic biomarkers, or integrative approaches linking basic research with practical outcomes—such as improving growth, survival, reproductive performance, and product quality. While vertebrate metabolism in aquaculture has been extensively studied, invertebrate models remain underexplored. By compiling recent findings, this Special Issue will fill critical knowledge gaps and stimulate interdisciplinary collaboration in invertebrate physiology, nutrition, and aquaculture innovation. This collection will be of interest to researchers, nutritionists, and producers seeking to enhance metabolic efficiency and sustainability in invertebrate aquaculture systems.

Dr. Leandro Rodríguez-Viera
Dr. Marcelino Herrera
Dr. Ismael Hachero-Cruzado
Guest Editors

Dr. Miguel Torres Rodriguez
Guest Editor Assitant

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Keywords

  • lipid metabolism
  • energy regulation
  • nutritional modulation
  • invertebrate physiology
  • invertebrate physiology
  • aquaculture nutrition

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Published Papers (1 paper)

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Research

16 pages, 1449 KB  
Article
The Effects of Salinity on the Survival, Growth, and Eco-Physiological Parameters of Juvenile Sea Urchin Diadema setosum
by Xuanliang Wang, Jieyu Zhang, Lei You, Yunyong Jin, Zhenhao Lin, Junhao Lin, Jinhui Wu and Zonghe Yu
Animals 2025, 15(16), 2462; https://doi.org/10.3390/ani15162462 - 21 Aug 2025
Viewed by 816
Abstract
Diadema setosum is an economically important species in tropical and subtropical waters. To determine the optimal salinity for D. setosum aquaculture, we examined six salinity levels (20, 24, 28, 32, 36, and 40) during winter and spring, assessing their effects on survival, growth, [...] Read more.
Diadema setosum is an economically important species in tropical and subtropical waters. To determine the optimal salinity for D. setosum aquaculture, we examined six salinity levels (20, 24, 28, 32, 36, and 40) during winter and spring, assessing their effects on survival, growth, and eco-physiological parameters of juvenile D. setosum. Results showed that (1) in winter, the survival rate of juvenile D. setosum was highest at salinities of 28–36, with 100% survival at salinities of 32–36. During spring, all salinity groups reached 100% survival. (2) Juveniles exhibited optimal growth performances at salinities of 32–36 across all seasons, and negative growth occurred at lower salinities (20–24) during winter. (3) The juveniles exhibited higher oxygen consumption rate and ammonium excretion rate with an atomic O:N ratio > 25 at salinities of 32–36, indicating that carbon-based substrates were the primary catabolic substrate. Under salinity stress (<24 or >40), the O:N ratio declined significantly, reflecting that proteins were the main metabolic substrate. (4) Fecal excretion was higher in winter than in spring, possibly due to size and digestive efficiency differences. Studies confirmed that salinity and temperature exert significantly combined effects on D. setosum, with an optimal salinity range of 32–36. This work provides valuable insights for the breeding and aquaculture of this species. Full article
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