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Mollusks from two estuarine areas in Ceará State, northeastern Brazil, with new...
Barroso, Cristiane Xerez; Rabay, Soraya Guimarães; Meirelles, Carlos Augusto Oliveira de; Matthews-Cascon, HelenaWe analyzed qualitatively the malacofauna found in the tidal zones of Banco dos Cajuais and Ilha Grande estuarine complex, both in Ceará State, northeastern Brazil. Qualitative data on the malacofauna from Banco dos Cajuais and the Ilha Grande estuarine complex were obtained by systematic sampling in 2008 and 2009 during field activities for the “Migratory Shorebirds Conservation and Shrimp Farming in Northeast...
Marine benthic communities affected by the Doce River (southwestern Atlantic): ...
Cascon, Helena Matthews; Bezerra, Luís Ernesto Arruda; Barroso, Cristiane Xerez; Rabay, Soraya Guimarães; Moreira, Ana karla; Rocha, Valesca PaulaPrior to Brazil's worst environmental disaster, caused by a mining dam collapse, we had carried out a study of the marine benthic macrofauna (11–51 m depth) under the influence of the Doce River. Our results showed significant diversity, in which mollusks, polychaetes, and crustaceans had the highest frequency, density, and abundance, represented by 162 families in summer and 173 in winter. Our results suggeste...
An extended geographical distribution of Donax gemmula Morrison, 1971 (Bivalvia...
Barroso, Cristiane Xerez; Rabay, Soraya Guimarães; Passos, Flávio Dias; Matthews-Cascon, HelenaThis study provides the first record of Donax gemmula Morrison, 1971 (Bivalvia: Donacidae) from the Ceará State, Northeast Brazil; up to now it was only known from the Southeastern and Southern Brazilian coast. Shells larger than ~2 mm in length of this species can be distinguished from those of D. striatus Linnaeus, 1767. Both species were collected in the same beaches: Banco dos Cajuais and Pecém. The occurre...
Marine benthic communities affected by the Doce River (southwestern Atlantic): ...
Matthews-Cascon, Helena; Bezerra, Luis Ernesto Arruda; Barroso, Cristiane Xerez; Rabay, Soraya Guimarães; Moreira, Ana Karla; Rocha, Valesca Paularior to Brazil's worst environmental disaster, caused by a mining dam collapse, we had carried out a study of themarine benthic macrofauna (11–51 m depth) under the influence of the Doce River. Our results showed sig-nificant diversity, in which mollusks, polychaetes, and crustaceans had the highest frequency, density, andabundance, represented by 162 families in summer and 173 in winter. Our results suggested ...
Morfologia de Phalium (Semicassis) granulatum (BORN, 1778) (MOLLUSCA, GASTROPOD...
Cascon, Helena Matthews; Rabay, Soraya GuimarãesThe objective of this research work was the morphologic study of Phalium (Semicassis) granulatum, a species that inhabits sand substratum in shallow waters and feeds on equinoderms. Especimens were collected at Redonda beach, Icapuí county, Ceará State, Brazil. Phalium (Semicassis) granulatum possesss the left ommatophore and tentacle bigger than the ommatophore and tentacle on the right side. In the palial cav...
Mollusks on recruitment panels placed in an offshore harbor in Tropical Northea...
Barroso, Cristiane Xerez; Rabay, Soraya Guimarães; Matthews-Cascon, HelenaIn order to contribute to knowledge of marine fouling communities, the present study analyzed the temporal variation in molluscan communities found on quarterly and annual recruitment panels placed in a seaport area of northeastern Brazil. A set of 30 artificial panels was submerged among pier pillars to a depth of approximately 6 m. Every three months, one subset of 15 panels was removed to examine the biota p...
Sexually dimorphic radular morphology in Columbella mercatoria (Mollusca: Gastr...
Bandeira, Ênio Victor Paiva; Rabay, Soraya Guimarães; Matthews-Cascon, HelenaBANDEIRA, E. V. P.; RABAY, S. G.; MATTHEWS-CASCON, H. Sexually dimorphic radular morphology in Columbella mercatoria (Mollusca: Gastropoda: Columbellidae). Arquivos de Ciências do Mar, Fortaleza, v. 47, n. 1, p. 78-82, jul. 2014.; Radular morphology in (Linnaeus, 1758) was investigated for the occurrence of sexual dimorphism. Thirty adult specimens of C. mercatoria (15 males and 15 females) were collected in th...
Coleção Malocológica “Prof. Henry Ramos Matthews” da Universidade Federal do Ce...
Rocha-Barreira, Cristina de Almeida; Matthews-Cascon, Helena; Rabay, Soraya GuimarãesROCHA-BARREIRA, C. DE A.; MATTHEWS-CASCON, H.; RABAY, S. G. Coleção Malocológica “Prof. Henry Ramos Matthews” da Universidade Federal do Ceará: 50 anos de história e contribuições ao conhecimento dos moluscos do Nordeste Brasileiro. Arquivos de Ciências do Mar, Fortaleza, v. 49, Supl., p. 9-16, dez. 2016.; The Malacological Collection “Prof. Henry Matthews Ramos “(CMPHRM) of the Universidade Federal do Ceará (U...