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| Registros recuperados: 125 | |
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| Martínez,Sergio; Rojas,Alejandra; Ubilla,Martín; Verde,Mariano; Perea,Daniel; Piñeiro,Graciela. |
| Dates of marine Holocene molluscs from Uruguay (Villa Soriano Formation) range from 6849 to 1858 cal. years BP. There are no significative gaps among the different ages obtained, with the exception of the interval 2276-2830 calculated years BP. Two kinds of concentrations are distinguished: autochthonous, for which a low energy depositional environment is inferred, and parautochthonous, deposited in foreshore and nearshore high-energy environments. Results of different types of multivariate analyses on presence-absence and abundance data show that only three localities are clearly differentiated from the others. The discrimination of two of them (Arazatí, Las Cañas) is explained by the presence of only one or two species, but the third (Punta Rasa) is the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Uruguay; Holocene; Paleoecology; Shell-beds; Mollusca; Bivalvia; Gastropoda. |
| Ano: 2006 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S0002-70142006000200009 |
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| Miyahira,Igor Christo; Carneiro,Jéssica Beck; Gonçalves,Isabela Cristina Brito; Lacerda,Luiz Eduardo Macedo de; Oliveira,Jaqueline Lopes de; Vasconcelos,Mariana Castro de; Santos,Sonia Barbosa dos. |
| Abstract The Guandu River Basin is extremely important to state of Rio de Janeiro, as a water supplier of several municipalities. However, the malacological knowledge and environmental status is not well known to this basin. The aim of this paper is to present an inventory of freshwater mollusks, as well as an environmental assessment through a Rapid Assessment Protocol, of ten sampling sites at Guandu River basin in six municipalities (Piraí, Paracambi, Japeri, Seropédica, Queimados and Nova Iguaçu). Thirteen species of molusks were found, eight native (Pomacea maculata, Biomphalaria tenagophila, Gundlachia ticaga, Gundlachia radiata, Omalonyx matheroni, Diplodon ellipticus, Anodontites trapesialis and Eupera bahiensis) and five exotics (Melanoides... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gastropoda; Bivalvia; Mollusca; Exotic species; RAP. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000300305 |
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| Lima,Silvio Felipe Barbosa; Lucena,Rudá Amorim; Santos,Galdênia Menezes; Souza,José Weverton; Christoffersen,Martin Lindsey; Guimarães,Carmen Regina; Oliveira,Geraldo Semer. |
| Abstract: Coastal ecosystems of northeastern Brazil have important biodiversity with regard to marine mollusks, which are insufficiently studied. Here we provide an inventory of mollusks from two sites in the estuary of the Paraíba River. Mollusks were collected in 2014 and 2016 on the coast and sandbanks located on the properties of Treze de Maio and Costinha de Santo Antônio. The malacofaunal survey identified 12 families, 20 genera and 21 species of bivalves, 17 families, 19 genera and 20 species of gastropods and one species of cephalopod. Bivalves of the family Veneridae Rafinesque, 1815 were the most representative, with a total of five species. Gastropods of the family Littorinidae Children, 1834 had the greatest species richness. The most abundant... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biodiversity; Mollusca; Gastropoda; Bivalvia; Cephalopoda; Tropical coastal ecosystems. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032017000100302 |
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| Lima,Silvio Felipe Barbosa; Lima,Bianca Vieira; Abreu,Evandro Cosmo; Oliveira,Geraldo Semer Pomponet; Lucena,Rudá Amorim; Mendonça,Luana Marina de Castro; Prata,Jéssica; Souza,J. Weverton S. de. |
| Abstract: The reef ecosystems of Morro de São Paulo are located in the Tinharé-Boipeba Environmental Preservation Area which was established in 1992 in the state of Bahia, Brazil. Despite this area has been created more than two decades ago, no study has provided knowledge on the invertebrate biodiversity associated with such reef ecosystems. The present investigation provides the first inventory of benthic mollusks associated with the reef ecosystems of Morro de São Paulo based on the collection of living specimens and fresh empty as well as some worn shells. Mollusks were sampled in January 2015 and August 2016 through intensive searches from the intertidal to shallow subtidal habitats of the reefs on three beaches of Morro de São Paulo. Taxonomic... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alpha diversity; Malacofaunal composition; Gastropoda; Bivalvia; Polyplacophora. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032019000400312 |
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| Lima,Silvio Felipe Barbosa; Simone,Luiz Ricardo Lopes; Guimarães,Carmen Regina Parisotto. |
| Abstract A gastropod specimen of the subfamily Addisoniinae Dall, 1882 is reported here for the first time associated with an elasmobranch egg capsule from the South Atlantic Ocean. A specimen of Addisonia enodis Simone, 1996 was found living inside an egg capsule of Atlantoraja castelnaui (Miranda Ribeiro, 1907) (Arhynchobatidae Fowler, 1934) from shallow waters off southeastern Brazil. Previous studies have reported the association of members of the genus Addisonia Dall, 1882 only with the egg capsules of sharks from the family Scyliorhinidae Gill, 1862 and skates from the family Rajidae de Blainville, 1816. Other specimens of A. enodis are also here reported to occur off northeastern Brazil based on shells found in deep waters off the state of Sergipe,... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Gastropoda; Addisoniidae; Addisonia excentrica; South America; Deep sea. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000300501 |
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| Martins,Renato Tavares; Alves,Roberto da Gama. |
| In the present study we report the occurrence of three Naididae species from three gastropod mollusk species. The species Dero (Dero) righii was found from mollusks of the genus Biomphalaria. Nais communis was found from Biomphalaria sp. and Aplexa rivalis. Chaetogaster limnaei was found from Biomphalaria sp., Aplexa rivalis and Lymnaea columella. In Brazil, previous studies have reported the occurrence of Chaetogaster limnaei from Biomphalaria solely, while Nais communis have been found from Pomacea bridgesii and Dero (Dero) righii in the sediment of aquatic habitats in Mato Grosso do Sul. Our results indicate that, due to their locomotion, naidids are capable of colonizing different substrates in aquatic environments. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Naidids; Aquatic mollusks; Gastropoda. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000300023 |
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| Silva,Edson Lourenço da; Rocha,Adriana Josefa da; Leal,Manuella Feitosa; Santos,Orianna dos; Sousa,João Hemerson de; Silva,Antônia Rafaela Viana da; Dantas,Karina Ketelen Silva; Rulim,Erika Maria Matos; Castro,Emerson Santos; Pacheco,Ana Carolina Landim; Pinheiro,Tamaris Gimenez. |
| Abstract: The pronounced dry season determines the characteristics of the semiarid region of Brazil. Numerous small reservoirs are built to overcome this condition, accumulating multiple uses and causing important changes in the landscape and the local biota. Considering the limited amount of information about the malacofauna of reservoirs, mainly in the Northeast region of the country, this inventory provides a list of mollusks from three important reservoirs located in the city of São Julião, state of Piauí. The collections were carried out monthly between May/2017 and April/2018, sampling a total of 11,149 mollusks, corresponding to the species Melanoides tuberculata (Müller, 1774) (n = 9,724), Biomphalaria straminea (Dunker, 1848) (n = 1,361) and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ampullariidae; Gastropoda; Planorbidae; Species list; Thiaridae. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032020000100301 |
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| FLOETER,S. R.; SOARES-GOMES,A.. |
| Patterns of richness and biogeography of Gastropoda molluscs were determined based on lists of species from five sites along the southwestern Atlantic. The analysis of the distribution patterns of these sites confirmed the existence of a broader transition zone between southern Espírito Santo State (21°S) and Rio Grande do Sul State (32°S). This zone is very heterogeneous, presenting a low endemism rate and a significant number of species common to the near provinces, and does not show enough consistency to be considered as an independent biogeographic province as proposed by Palacio (1980). Observing the distribution of species along the southwestern Atlantic we find an increase in the proportion of species with greatest latitudinal ranges (occurring from... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Biogeography; Gastropoda; Southwestern Atlantic; Diversity. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-71081999000400006 |
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| Cárdenas,Javiera; Aldea,Cristian; Valdovinos,Claudio. |
| The tip of the South American cone is one of the most interesting Subantarctic areas, both biogeographically and ecologically. Nonetheless, knowledge of the area's biodiversity, in particular that of the subtidal marine habitats, remains poor. Therefore, in 2004, a biodiversity research project was carried out as a part of the cruise Cimar-10 Fjords, organized and supported by the Chilean National Oceanographic Committee (CONA). The results of the subtidal marine mollusk surveys are presented herein. The samples were collected aboard the Agor 60 "Vidal Gormaz" in winter 2004. The study area covered the northern Chilean Patagonia from Seno de Relocanví (41°31'S) to Boca del Guafo (43°49'S), on the continental shelf from 22 to 353 m depth. The Mollusca were... |
| Tipo: Journal article |
Palavras-chave: Biodiversity; Taxonomy; South America; Fjords; Polyplacophora; Gastropoda; Bivalvia; Scaphopoda. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382008000200010 |
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| Cádiz,Francisco J; Gallardo,Carlos S. |
| Flammulina festiva Scott, 1970 is a terrestrial gastropod endemic to southern Chile. Characteristics of living specimens, including the anatomy of the excretory and reproductive systems of this species are here reported for the first time. The excretory system of this species is of the charopid type with a short, curved primary ureter, and a secondary ureter which extends to the excretory sinus. The reproductive system exhibits characteristics similar to other Charopidae. There is an ovotestis that is divided into seven lobes, a well-developed albumin gland, an ovospermial duct with a proximally diverticulate, distally undivided prostatic gland, plus a short oviduct. The terminal portion of the system shows a pointed epiphallus, and a phallus within a... |
| Tipo: Journal article |
Palavras-chave: Flammulina festiva; Gastropoda; Excretory system; Reproductive system; Charopidae; Chile. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-65382008000100001 |
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| Pilate,Vinícius J.; Silva,Lidiane C.; Bessa,Elisabeth C. A.. |
| O conhecimento dos aspectos biológicos e morfológicos dos moluscos terrestres é importante para o desenvolvimento de medidas de controle de pragas e de estratégias de conservação de espécies. O presente trabalho teve como objetivo caracterizar os padrões de biologia e conquiliomorfometria de Dysopeas muibum Marcus & Marcus, 1968 e verificar o efeito do isolamento sobre seu ciclo de vida e a morfometria da concha, em condições de laboratório. Foi realizado o acompanhamento do crescimento da concha, da liberação de filhotes e da mortalidade de 80 moluscos, dos quais 40 foram mantidos isolados e 40 agrupados (10 moluscos por grupo) em condições naturais de temperatura, umidade relativa e fotoperíodo, desde o nascimento até 180 dias de vida, quando... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Reprodução; Gastropoda; Morfometria; Concha. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212013000400003 |
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| Sant'Anna,Bruno S.; Zangrande,Cilene M.; Reigada,Alvaro L. D.; Pinheiro,Marcelo A. A.. |
| We evaluated the gastropod shell utilization pattern of the hermit crab Clibanarius vittatus (Bosc, 1802) at Pescadores Beach in São Vicente, State of São Paulo, Brazil. Specimens were collected monthly from May 2001 through April 2003, in the intertidal zone at low tide. The crabs were weighed and their carapace shield length measured. All gastropod shells were identified and had their shell biometric parameters (total length and aperture length) measured (mm) and weighed (g). A total of 2,344 hermit crabs (644 males, 1,594 females, 45 ovigerous females and 61 individuals in intersex), using 13 species of gastropod shells, were collected. Stramonita haemastoma (Linnaeus, 1767), Cymatium parthenopeum (Von Salis, 1793) and Achatina fulica (Bowdich, 1822)... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hermit crab; Shell; Anomura; Clibanarius; Gastropoda. |
| Ano: 2006 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212006000200018 |
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| Souza,Marco A. A.; Barbosa,Verônica S.; Albuquerque,Jones O.; Bocanegra,Silvana; Souza-Santos,Reinaldo; Paredes,Helen; Barbosa,Constança S.. |
| Realizou-se levantamento malacológico na praia de Carne de Vaca, município de Goiana, litoral norte de Pernambuco, entre novembro de 2006 e outubro de 2007, com o objetivo de conhecer a fauna malacológica dessa localidade e verificar as condições naturais, pouco ou bastante alteradas das áreas de estudo através da aplicação de um protocolo de avaliação de diversidade de hábitats. Foram coletados 5.912 moluscos, representados por sete espécies e quatro famílias, dos quais, 5.209 exemplares de Biomphalaria glabrata (Say, 1818), 113 de Drepanotrema lucidum (Pfeiffer, 1839), 55 de Drepanotrema cimex (Moricand, 1837), 13 de Drepanotrema anatinum (Pfeiffer, 1839), 222 de Melanoides tuberculatus (Muller, 1774), 263 de Pomacea sp. e 37 de Physa marmorata Guilding,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gastropoda; Schistosoma mansoni; Praia de Carne de Vaca; Ambiente de água doce. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000100003 |
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| Houart, Roland; Heros, Virginie. |
| The extreme south of Madagascar is noted for the endemism of its marine biota, notably molluscs. Six new species of Muricidae Rafinesque, 1815 are described in the present paper; three in the subfamily Muricinae Rafinesque, 1815: Chicoreus (Triplex) kantori n. sp., Naquetia manwaii n. sp. and Dermomurex (Dermomurex) charlesi n. sp.; two in the subfamily Muricopsinae Radwin & D'Attilio, 1971: Favartia (Favartia) tantelyi n. sp. and Favartia (Pygmaepterys) fournierae n. sp.; and one in the subfamily Rapaninae Gray, 1853: Semiricinula bozzettii n. sp. Similar species from Madagascar and from other regions are compared and illustrated. The radula of Naquetia manwaii n. sp. and of Semiricinula bozzettii n. sp. are illustrated. |
| Tipo: Text |
Palavras-chave: Mollusca; Gastropoda; Muricidae; Madagascar "Deep South"; New species. |
| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00218/32969/31612.pdf |
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| Santarelli, L; Gros, Philippe. |
| The totality of French landings of whelk (Buccinum undatum L.) is assignable to the fisheries of the Normand-Breton Gulf, western Channel. The aim of this paper is to forecast economic rent of the potters of the harbour of Granville, as a function of the two main variates open to supervision: the size of the fishing fleet, and the number of whelk-pots per ship. In order to assess the biological and financial consequences of a prospective development, a deterministic model of the fleet-resource system is proposed. Results of simulations emphasize the sharpness of the rent-dissipation problem under existing tendencies. Therefore some recommendations are put forward to derive a fishery policy that would enable the system to be maintained near optimal... |
| Tipo: Text |
Palavras-chave: Gastropoda; Marine mollusks; Fishery management; Economic models; Fishery economics. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/publication-1786.pdf |
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| Registros recuperados: 125 | |
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