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The reproductive cycle, as well as the nutrient storage and utilization of two Portuguese Cerastoderma edule populations from \u00d3bidos and Ria Formosa lagoons were characterized by evaluating gonadal development stages, gonadal and condition indexes, as well as glycogen and total lipid content, over several consecutive years. The relationship between reproduction and environmental parameters (sea surface temperature and chlorophyll a) was assessed. The reproductive cycle of both populations of C. edule followed a clear seasonal pattern. The onset of gametogenesis took place in early autumn for both populations, and its evolution coincided with a temperature decrease which progressed throughout the winter. The mature stage was reached in spring, followed by a spawning period during spring and summer, triggered by a rise in temperature. After spawning, both populations progressed to a prolonged inactive stage. The condition index reflected the accumulation and utilization of glycogen, which was considerably higher in the \u00d3bidos population. However, no relationships were found in the reproductive cycle of the species. Total lipids remained similar not only during the gametogenesis period, but also during the spawning period, which may be related to successive and simultaneous gamete production and release.<\/jats:p>","DOI":"10.3390\/fishes8070353","type":"journal-article","created":{"date-parts":[[2023,7,6]],"date-time":"2023-07-06T00:41:27Z","timestamp":1688604087000},"page":"353","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":5,"title":["Dynamics of the Reproductive Cycle of Two Cerastoderma edule Populations (\u00d3bidos and Ria Formosa Lagoons) along with Their Nutrient Storage and Utilization Strategy"],"prefix":"10.3390","volume":"8","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6324-5908","authenticated-orcid":false,"given":"Sandra","family":"Joaquim","sequence":"first","affiliation":[{"name":"Department of Sea and Marine Resources, Portuguese Institute for Sea and Atmosphere, Av. 5 de Outubro s\/n, 8700-305 Olh\u00e3o, Portugal"},{"name":"Interdisciplinary Center of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leix\u00f5es, Av. General Norton de Matos s\/n, 4450-208 Matosinhos, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6170-2004","authenticated-orcid":false,"given":"Ana Margarete","family":"Matias","sequence":"additional","affiliation":[{"name":"Department of Sea and Marine Resources, Portuguese Institute for Sea and Atmosphere, Av. 5 de Outubro s\/n, 8700-305 Olh\u00e3o, Portugal"}]},{"given":"Paula","family":"Moura","sequence":"additional","affiliation":[{"name":"Department of Sea and Marine Resources, Portuguese Institute for Sea and Atmosphere, Av. 5 de Outubro s\/n, 8700-305 Olh\u00e3o, Portugal"}]},{"given":"Beatriz","family":"Trindade","sequence":"additional","affiliation":[{"name":"School of Tourism and Maritime Technology, Polytechnic of Leiria, Campus 4, Rua do Conhecimento no 4, 2520-614 Peniche, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9245-8518","authenticated-orcid":false,"given":"Miguel B.","family":"Gaspar","sequence":"additional","affiliation":[{"name":"Department of Sea and Marine Resources, Portuguese Institute for Sea and Atmosphere, Av. 5 de Outubro s\/n, 8700-305 Olh\u00e3o, Portugal"},{"name":"Center of Marine Sciences, University of Algarve, Campus de Gambelas, 8005-139 Faro, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1168-7461","authenticated-orcid":false,"given":"Teresa","family":"Baptista","sequence":"additional","affiliation":[{"name":"School of Tourism and Maritime Technology, Polytechnic of Leiria, Campus 4, Rua do Conhecimento no 4, 2520-614 Peniche, Portugal"},{"name":"Marine and Environmental Sciences Center, Polytechnic of Leiria, CETEMARES, Marine Sciences R&D, Education and Knowledge Dissemination Centre, Av. Porto de Pesca, 2520-630 Peniche, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2191-7497","authenticated-orcid":false,"given":"Domit\u00edlia","family":"Matias","sequence":"additional","affiliation":[{"name":"Department of Sea and Marine Resources, Portuguese Institute for Sea and Atmosphere, Av. 5 de Outubro s\/n, 8700-305 Olh\u00e3o, Portugal"},{"name":"Interdisciplinary Center of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leix\u00f5es, Av. General Norton de Matos s\/n, 4450-208 Matosinhos, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2023,7,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Hayward, P.J., and Ryland, J.S. (2017). 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