{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,12]],"date-time":"2025-10-12T03:22:34Z","timestamp":1760239354570,"version":"build-2065373602"},"reference-count":42,"publisher":"MDPI AG","issue":"4","license":[{"start":{"date-parts":[[2020,11,5]],"date-time":"2020-11-05T00:00:00Z","timestamp":1604534400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["UIDB\/04326\/2020","UIDB\/04423\/2020"],"award-info":[{"award-number":["UIDB\/04326\/2020","UIDB\/04423\/2020"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Oceans"],"abstract":"<jats:p>The rivers of S\u00e3o Tom\u00e9 Island are colonized by Sicydium bustamantei (Greeff 1882), an amphidromous fish that spawns in those areas. After hatching, larvae drift to the ocean with the river flow. In the marine realm, the planktonic larvae develop and migrate to freshwater as post-larvae. The migrations of post-larvae support important local fisheries at the mouth of rivers in tropical volcanic islands. Amphidromous post-larvae rely on plankton as their main source of organic matter. However, the biology and ecology of S. bustamantei in the West African islands are understudied, despite its importance for local fisheries. Thus, this study aimed to start bridging this gap by studying its feeding ecology. Our objectives were to identify the main prey of S. bustamantei post-larvae, combining gut content with stable isotope analyses. The gut contents included zooplankton (Chaetognatha, Ostracoda, and unidentified crustaceans), debris from plant and\/or macroalgae-derived material, and microplastics (including microfibers). The stable isotopes analysis indicated that zooplankton and macroalgae detritus were the main sources of organic matter assimilated by this species. We also demonstrated that S. bustamantei post-larvae are omnivorous and secondary consumers. These data provide pioneering information that can be used in management plans that still need to be developed.<\/jats:p>","DOI":"10.3390\/oceans1040020","type":"journal-article","created":{"date-parts":[[2020,11,5]],"date-time":"2020-11-05T09:04:34Z","timestamp":1604567074000},"page":"300-310","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":1,"title":["Feeding Ecology of Sicydium bustamantei (Greeff 1884, Gobiidae) Post-Larvae: The \u201cLittle Fish\u201d of S\u00e3o Tom\u00e9 Island"],"prefix":"10.3390","volume":"1","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1428-3334","authenticated-orcid":false,"given":"V\u00e2nia","family":"Baptista","sequence":"first","affiliation":[{"name":"Centro de Ci\u00eancias do Mar, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal"}]},{"given":"Ester","family":"Dias","sequence":"additional","affiliation":[{"name":"Centro Interdisciplinar de Investiga\u00e7\u00e3o Marinha e Ambiental, Universidade do Porto, Terminal de Cruzeiros do Porto de Leix\u00f5es, 4450-208 Matosinhos, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7191-9204","authenticated-orcid":false,"given":"Joana","family":"Cruz","sequence":"additional","affiliation":[{"name":"Centro de Ci\u00eancias do Mar, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal"}]},{"given":"Maria","family":"Branco","sequence":"additional","affiliation":[{"name":"Associa\u00e7\u00e3o Programa Tat\u00f4\u2014S\u00edtio da Pedragosa, 8600-013 Bar\u00e3o de S\u00e3o Jo\u00e3o, Portugal"}]},{"given":"Sara","family":"Vieira","sequence":"additional","affiliation":[{"name":"Associa\u00e7\u00e3o Programa Tat\u00f4\u2014S\u00edtio da Pedragosa, 8600-013 Bar\u00e3o de S\u00e3o Jo\u00e3o, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0939-9885","authenticated-orcid":false,"given":"Maria Alexandra","family":"Teod\u00f3sio","sequence":"additional","affiliation":[{"name":"Centro de Ci\u00eancias do Mar, Universidade do Algarve, Campus de Gambelas, 8005-139 Faro, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2020,11,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","unstructured":"Morais, P., and Daverat, F. 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