{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,3]],"date-time":"2025-10-03T09:00:57Z","timestamp":1759482057548},"reference-count":0,"publisher":"Cambridge University Press (CUP)","issue":"6","license":[{"start":{"date-parts":[[2004,11,23]],"date-time":"2004-11-23T00:00:00Z","timestamp":1101168000000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J. Mar. Biol. Ass."],"published-print":{"date-parts":[[2004,12]]},"abstract":"<jats:p>A study was initiated to identify trematode patterns in <jats:italic>Cyathura<\/jats:italic> from two key sites in the Mondego Estuary: a <jats:italic>Zostera<\/jats:italic>-bed and a sand flat. The two subpopulations of <jats:italic>Cyathura<\/jats:italic> differ, as the annual recruitment success is much higher and more regular on the sandflat than on the <jats:italic>Zostera<\/jats:italic>-bed.<\/jats:p><jats:p>Counting and sizing of trematode cysts inside the body of preserved <jats:italic>Cyathura<\/jats:italic> specimens enabled a description of trematode patterns in space and time. Further identification of trematodes was based on DNA studies of unpreserved cysts as well as on identification of parasites in co-occurring mud snails. Two trematode species dominated in <jats:italic>Cyathura<\/jats:italic>: <jats:italic>Maritrema subdolum<\/jats:italic> (cysts around 190\u2006\u03bcm) and a hitherto unknown <jats:italic>Levinseniella<\/jats:italic> species (cysts around 340\u2006\u03bcm), the latter being the most frequent one. Generally, the prevalence of both species peaked during winter months, when migratory water birds occur in the estuary. <jats:italic>Cyathura<\/jats:italic> from the <jats:italic>Zostera<\/jats:italic> bed harboured more infections per specimen than those from the sand flat. A much higher density of mud snails \u226552\u2006mm (which can be host to microphallids) and a low abundance of <jats:italic>Cyathura<\/jats:italic> are thought to be the main reasons for this pattern. Field data did indicate a host size-dependent maximum number of cysts in <jats:italic>Cyathura<\/jats:italic> that could be a result of enhanced mortality at high cyst intensities. Furthermore, parasites were underrepresented among ovigerous <jats:italic>Cyathura<\/jats:italic> specimens, suggesting a negative impact on gametogenesis. As a consequence, microphallid trematodes may be a critical factor controlling recruitment strength in <jats:italic>Cyathura<\/jats:italic>, especially at the <jats:italic>Zostera<\/jats:italic>-site.<\/jats:p>","DOI":"10.1017\/s0025315404010598h","type":"journal-article","created":{"date-parts":[[2004,11,23]],"date-time":"2004-11-23T09:09:13Z","timestamp":1101200953000},"page":"1151-1158","source":"Crossref","is-referenced-by-count":13,"title":["Trematodes in a <i>Cyathura carinata<\/i> population from a temperate intertidal estuary: infection patterns and impact on host"],"prefix":"10.1017","volume":"84","author":[{"given":"K. Thomas","family":"Jensen","sequence":"first","affiliation":[]},{"given":"Susana M.","family":"Ferreira","sequence":"additional","affiliation":[]},{"given":"Miguel A.","family":"Pardal","sequence":"additional","affiliation":[]}],"member":"56","published-online":{"date-parts":[[2004,11,23]]},"container-title":["Journal of the Marine Biological Association of the United Kingdom"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S0025315404010598","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,6]],"date-time":"2019-05-06T19:44:32Z","timestamp":1557171872000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S0025315404010598\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2004,11,23]]},"references-count":0,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2004,12]]}},"alternative-id":["S0025315404010598"],"URL":"https:\/\/doi.org\/10.1017\/s0025315404010598h","relation":{},"ISSN":["0025-3154","1469-7769"],"issn-type":[{"value":"0025-3154","type":"print"},{"value":"1469-7769","type":"electronic"}],"subject":[],"published":{"date-parts":[[2004,11,23]]}}}