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https://revistas.utm.edu.ec/index.php/aquatechnica <p><strong>AquaTechnica</strong> (ISSN 2737-6095) is a journal aimed at the scientific community interested in the area of aquaculture, with open access and free publication, which disseminates original scientific and technical contributions in aquaculture, the product of research mainly carried out in Latin America, but not limited to it. Publishes a Volume with 3 quarterly issues per year. Each issue covers articles processed within the following periods: 1(January-April); 2 (May-August) and 3 (September-December). Although with a continuous publication mode within each issue, the articles are published as they are finally approved, within each period.</p> <p>The publication methods are original articles, reviews, notes or short communications, essays, and technical manuals, written in Spanish, English, or Portuguese.</p> <p style="text-align: justify;">The declaration of ethics and good editorial practices can be seen <a href="https://drive.google.com/file/d/195m2cgXE3VJiaxHF8b1ucVL3o3sworSR/view" target="_blank" rel="noopener">here</a><strong>.</strong> </p> Escuela de Acuicultura y Pesquería, Facultad de Ciencias Veterinarias, Universidad Técnica de Manabí es-ES AquaTecnica 2737-6095 https://revistas.utm.edu.ec/index.php/aquatechnica/article/view/7540 <p>The absence of highly unsaturated fatty acids (HUFAs) in the diet of Pacific white shrimp (<em>Penaeus vannamei</em>) alters its development, decreases its immunological capacity, and reduces survival during the initial stages of larval culture, which compromises the bioeconomic efficiency of the system by increasing susceptibility to infectious agents. This study evaluated the effect of providing <em>Artemia</em> sp. enriched with fatty acids (AEAG) on productive and compositional indicators in post-larval <em>Penaeus vannamei</em>. A total of 45 million nauplii were used in 18 experimental units, applying two treatments: (1) feeding with AEAG and (2) <em>Artemia</em> sp. non-enriched (control), during a culture cycle of 18 days. Yield per ton, specific growth rate (SGR), proximal chemical composition, fatty acid profile, and survival rate were calculated. Postlarvae treated with AEAG showed increases in yield (+26.90%), SGR (+13.64%), and survival (+21.40%); together with a biochemical pattern characterized by lower lipid content (–22.19%) and a higher proportion of carbohydrates (+12.02%) and proteins (+1.30%). These findings demonstrate a metabolic optimization associated with increased efficiency in energy use during the larval phase under controlled conditions, thereby improving the production and survival of <em>P. vannamei</em> postlarvae.</p> Melany Dayana Anaguano Quijia Yahira Licia Piedrahita Falquez Copyright (c) 2025 Melany Dayana Anaguano Quijia, Yahira Licia Piedrahita Falquez http://creativecommons.org/licenses/by-nc-sa/4.0 2025-09-11 2025-09-11 7 3 119 127