{"id":{"repo_id":"brazil-uerj","oai_identifier":"oai:pantheon.ufrj.br:11422/4225"},"canonical_url":"https://search.dev.ndltd.org/etd/brazil-uerj/oai:pantheon.ufrj.br:11422/4225","repository":{"repo_id":"brazil-uerj","name":"Brazil UERJ","base_url":"https://pantheon.ufrj.br/oai/request"},"display":{"title":"Ecologia de uma taxocenose de peixes anuais (Cyprinodontiformes - Rivulidae) num brejo de restinga, Barra de São João, Rio de Janeiro, Brasil","abstract":"Some ecological aspects of a community of three annual rivulid fishes, Cynolebias constaciae, C. whitei and Leptolebias cruzi, are studied on three temporary pools of Barra de São João (RJ). Cynolebias constanciae and L. cruzi are know only from these pools, and C. whitei occurs in other pools near Maricá and Cabo Frio (RJ). Field works were made from April, 1991 to April, 1992, in a total of 21 samples. In two collects the pools were completely dry. A total of 1670 specimens of fishes were collected, from which, only 28.9% were annual fishes. The most frequent and abundant rivulid species were L. cruzi and C. contaciae. In all three rivulid species, females were more numerous than males, mainly in the dry seasons. Stomach and gut contents were examined, the individual food itens identified and analyzed according to frequency of occurrence method. The results indicate a large number of food categories (28). All species of rivulid fishes feed on insect larvae (mainly of Chironomidae and Coleoptera), small crustaceans (Copepoda, Ostracoda and Cladocera), Hydracarina and Rotifera. The results of feeding are discussed and compared with rivulid diets at other locations.","abstract_html":"Some ecological aspects of a community of three annual rivulid fishes, Cynolebias constaciae, C. whitei and Leptolebias cruzi, are studied on three temporary pools of Barra de São João (RJ). Cynolebias constanciae and L. cruzi are know only from these pools, and C. whitei occurs in other pools near Maricá and Cabo Frio (RJ). Field works were made from April, 1991 to April, 1992, in a total of 21 samples. In two collects the pools were completely dry. A total of 1670 specimens of fishes were collected, from which, only 28.9% were annual fishes. The most frequent and abundant rivulid species were L. cruzi and C. contaciae. In all three rivulid species, females were more numerous than males, mainly in the dry seasons. Stomach and gut contents were examined, the individual food itens identified and analyzed according to frequency of occurrence method. The results indicate a large number of food categories (28). All species of rivulid fishes feed on insect larvae (mainly of Chironomidae and Coleoptera), small crustaceans (Copepoda, Ostracoda and Cladocera), Hydracarina and Rotifera. The results of feeding are discussed and compared with rivulid diets at other locations.","abstract_has_math":false,"creators":["Muratori, Charles Frederic de Meirelles Lagden"],"institution":"Universidade Federal do Rio de Janeiro","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":null,"school":null,"contributors":[],"advisors":["Costa, Wilson José Eduardo Moreira da"],"committee_chairs":[],"committee_members":[],"year":1993,"date_issued":"1993","date_published":"1993","updated_at":"2026-07-24T01:16:15Z","subjects":["Atheriniformes","Rio de Janeiro (Estado)"],"languages":["por"],"rights":["Acesso Aberto"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/11422/4225","outbound_label":"Handle","outbound_source":"dc:identifier.uri"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor.advisor","label":"Advisor","values":["Costa, Wilson José Eduardo Moreira da"]},{"key":"dc:creator","label":"Author","values":["Muratori, Charles Frederic de Meirelles Lagden"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date.accessioned","label":"Dc Date Accessioned","values":["2018-07-05T01:48:13Z"]},{"key":"dc:date.available","label":"Dc Date Available","values":["2026-05-16T03:03:06Z"]},{"key":"dc:date.issued","label":"Date","values":["1993"]},{"key":"dc:publisher","label":"Institution","values":["Universidade Federal do Rio de Janeiro"]},{"key":"dc:publisher.department","label":"Dc Publisher Department","values":["Museu Nacional"]},{"key":"dc:type","label":"Dc Type","values":["Dissertação"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Atheriniformes","Rio de Janeiro (Estado)"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["por"]},{"key":"dc:rights","label":"Dc Rights","values":["Acesso Aberto"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/11422/4225"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description.abstract","label":"Abstract","values":["Some ecological aspects of a community of three annual rivulid fishes, Cynolebias constaciae, C. whitei and Leptolebias cruzi, are studied on three temporary pools of Barra de São João (RJ). Cynolebias constanciae and L. cruzi are know only from these pools, and C. whitei occurs in other pools near Maricá and Cabo Frio (RJ). Field works were made from April, 1991 to April, 1992, in a total of 21 samples. In two collects the pools were completely dry. A total of 1670 specimens of fishes were collected, from which, only 28.9% were annual fishes. The most frequent and abundant rivulid species were L. cruzi and C. contaciae. In all three rivulid species, females were more numerous than males, mainly in the dry seasons. Stomach and gut contents were examined, the individual food itens identified and analyzed according to frequency of occurrence method. The results indicate a large number of food categories (28). All species of rivulid fishes feed on insect larvae (mainly of Chironomidae and Coleoptera), small crustaceans (Copepoda, Ostracoda and Cladocera), Hydracarina and Rotifera. The results of feeding are discussed and compared with rivulid diets at other locations."]},{"key":"dc:title","label":"Title","values":["Ecologia de uma taxocenose de peixes anuais (Cyprinodontiformes - Rivulidae) num brejo de restinga, Barra de São João, Rio de Janeiro, Brasil"]}]}],"canonical_facts":{"dc:contributor.advisor":["Costa, Wilson José Eduardo Moreira da"],"dc:creator":["Muratori, Charles Frederic de Meirelles Lagden"],"dc:date.accessioned":["2018-07-05T01:48:13Z"],"dc:date.available":["2026-05-16T03:03:06Z"],"dc:date.issued":["1993"],"dc:description.abstract":["Some ecological aspects of a community of three annual rivulid fishes, Cynolebias constaciae, C. whitei and Leptolebias cruzi, are studied on three temporary pools of Barra de São João (RJ). Cynolebias constanciae and L. cruzi are know only from these pools, and C. whitei occurs in other pools near Maricá and Cabo Frio (RJ). Field works were made from April, 1991 to April, 1992, in a total of 21 samples. In two collects the pools were completely dry. A total of 1670 specimens of fishes were collected, from which, only 28.9% were annual fishes. The most frequent and abundant rivulid species were L. cruzi and C. contaciae. In all three rivulid species, females were more numerous than males, mainly in the dry seasons. Stomach and gut contents were examined, the individual food itens identified and analyzed according to frequency of occurrence method. The results indicate a large number of food categories (28). All species of rivulid fishes feed on insect larvae (mainly of Chironomidae and Coleoptera), small crustaceans (Copepoda, Ostracoda and Cladocera), Hydracarina and Rotifera. The results of feeding are discussed and compared with rivulid diets at other locations."],"dc:identifier.uri":["http://hdl.handle.net/11422/4225"],"dc:language":["por"],"dc:publisher":["Universidade Federal do Rio de Janeiro"],"dc:publisher.department":["Museu Nacional"],"dc:rights":["Acesso Aberto"],"dc:subject":["Atheriniformes","Rio de Janeiro (Estado)"],"dc:title":["Ecologia de uma taxocenose de peixes anuais (Cyprinodontiformes - Rivulidae) num brejo de restinga, Barra de São João, Rio de Janeiro, Brasil"],"dc:type":["Dissertação"]},"updated_at":"2026-07-24T01:16:15Z"}