Results 51 to 60 of about 1,665 (93)

The coupled occurrence of Cimmeriella-Jakutoproductus (Brachiopoda: Productidina) in Patagonia : implications for Early Permian high to middle paleolatitudinal correlations and paleoclimatic reconstruction [PDF]

open access: yes, 2010
The brachiopod species Jakutoproductus sabattiniae sp. nov. and Cimmeriella willi sp. nov. from the Cisuralian deposits of the Tepuel-Genoa basin are described here.
Consejo Nacional de Investigaciones Científicas y Técnicas (Argentina). Laboratorio de Investigaciones en Evolución y Biodiversidad   +2 more
core   +2 more sources

Occurrence of imposex in Thais haemastoma: possible evidence of environmental contamination derived from organotin compounds in Rio de Janeiro and Fortaleza, Brazil Ocorrência de imposex em Thais haemastoma: possíveis evidências de contaminação ambiental por compostos organotínicos no Rio de Janeiro e em Fortaleza, Brasil

open access: yesCadernos de Saúde Pública, 2002
There are indications that the widespread use of organotin compounds (TBT and TPT) as antifoulings, as stabilizers in plastic and as pesticides, has severely affected several species of marine organisms.
Marcos Antonio Fernandez   +4 more
doaj   +1 more source

Biogeography and biodiversity of gastropod molluscs from the eastern Brazilian continental shelf and slope Biogeografía y biodiversidad de moluscos gastrópodos de la plataforma y talud continental brasileño

open access: yesLatin American Journal of Aquatic Research, 2009
Biogeographic distributional patterns of gastropods are proposed based on the species' geo-graphic and bathymetric distribution. Samples were collected along the Brazilian continental margin between 18° S and 23° S, at 37 stations with depths from 20 m ...
Gabriela Benkendorfer   +1 more
doaj  

Response of macroinvertebrates to experimental nutrient and fish additions in European localities at different latitudes [PDF]

open access: yes, 2006
The sedimentary and plant-associated macroinvertebrate communities have been examined in a series of mesocosm experiments carried out in five locations, in Finland, Sweden, UK, Northwest Spain and Mediterranean Spain (the International Mesocosm ...
Bécares Mantecón, Eloy   +13 more
core  

Distribucion arborea de los gastropodos cerithidea montagnei (mollusca: potamidae) y littorina Spp. (Mollusca: Littorinidae) en el manglar de Mata de Limón, Costa Rica

open access: yesUniciencia, 1984
En el manglar de Mata de Limón, Puntarenas, Costa Rica, se estudió la distribución y preferencia por el susbtrato arbóreo de gastrópodos C. montagnei y Littorina spp.
Edgar Suárez B, Alvaro Castaing R
doaj  

General characteristics of the diet of Trachinotus paitensis (Teleostei: Carangidae) from San Ignacio Lagoon, Baja California Sur, Mexico

open access: yesRevista de Biología Tropical, 2004
The food habits of Trachinotus paitensis, in San Ignacio Lagoon B.C.S., Mexico, were investigated. We observed that T. paitensis is carnivorous, feeding mainly on benthic invertebrates (the gastropods Anachis spp., Bittium spp., and the crustacean larvae)
V.H. Cruz Escalona   +1 more
doaj  

Floian conodonts from the San Juan Formation in the Talacasto creek, San Juan Precordillera [PDF]

open access: yes, 2013
En la presente contribución se dan a conocer por primera vez los géneros y especies de conodontes foianos de la Formación San Juan, provenientes de la clásica localidad de la quebrada de Talacasto.
Heredia, Susana Emma   +3 more
core  

As marismas da Baía de Paranaguá: características gerais, modos de apropriação e implicações para a legislação ambiental [PDF]

open access: yes, 2003
This review presents the current knowledge on salt marshes of Paranaguá Bay (Southem Brazil) and analyses their floristic, faunistic and physiographic differences in relation to local mangroves. Usage and traditional management of local salt marshes have
Paulo da Cunha Lana
core   +2 more sources

Heterochely in Eriphia gonagra (Fabricius, 1781) (Crustacea, Decapoda, Xanthidae) of the rocky coast from Praia Grande, Ubatuba (SP), Brazil

open access: yesBiotemas, 1998
A heteroquelia varia intensamente nas diferentes espécies de crustáceos decápodos, sendo que tal aspecto pode auxiliar na diferenciação sexual. O objetivo do presente estudo é determinar a ocorrência de heteroquelia para E.
João Marcos de Góes, Adilson Fransozo
doaj  

Darwin y el mar [PDF]

open access: yes, 2009
Además de sus conocidos aportes a la geología, la paleontología y la biogeografía de ecosistemas terrestres de la región pampeana y la Patagonia (Argentina), Darwin realizó notables y poco difundidas contribuciones al conocimiento de los ambientes ...
Diaz de Astarloa, J.M.   +7 more
core   +1 more source

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