Results 41 to 50 of about 28,708 (163)

Scaphopod mollusks from the Atlas V expedition (continental shelf of Jalisco and Colima, Mexico) on board of the O/V El Puma

open access: yesCiencias Marinas, 2003
The distribution and abundance of 15 scaphopod species collected in the continental shelf off Jalisco and Colima, Mexico, in August 1988 were analyzed. Scapohods were collected with a geological Van Veen dredge in eight sampling stations at depths from ...
E Ríos-Jara   +3 more
doaj   +1 more source

Infection Rate of Fish of the Cypriniidae Family by Helminth Larvae of the Opisthorchiidae Family in the Seym and Psel rivers Basins in Kursk Region

open access: yesРоссийский паразитологический журнал, 2020
The purpose of the research is to study of the infection rate of freshwater mollusks and carp fish by trematodes transmitted by fish in the Psel and Seym basins in the Kursk region.Materials and methods.
R. G. Fattakhov   +4 more
doaj   +1 more source

morphological and biological Features of Parthenogenetic and Dioecious generations Schistosoma turkestanicum skrjabin, 1913

open access: yesРоссийский паразитологический журнал, 2020
The purpose of the research is to study of the morphological and biological characteristics of parthenogenetic and dioecious generations of the trematode Schistosoma turkestaniсum – a parasite of mammals of Uzbekistan.Materials and methods.
B. T. Norkobilov   +4 more
doaj   +1 more source

Preliminary survey on classification of radula in certain Gastropods of the Persian Gulf (sub-order Prosobranchina

open access: yes‬‭Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 1995
The radula has various shapes and structures in gastropods, which make it possible to distinguish them up to the level of species. In this survey, Iamels and film slides have been prepared from denticulated structure of radula in gastropods of ...
H. Ghanbarzadeh
doaj  

ACCUMULATION OF SOME TRACE ELEMENTS IN SEDIMENTS AND MACROBENTHOS OF THE NORTHERN CASPIAN

open access: yesЮг России: экология, развитие, 2014
The article is devoted studying of concentration of trace elements in sediments, mollusks, macrophytes of the Northern Caspian sea. Authentic distinctions in utilizing ability of the studied elements by benthos organisms depending on a site and the ...
A. V. Makhlun   +2 more
doaj   +1 more source

Metabolitos secundarios, letalidad y actividad antimicrobiana de los extractos de tres corales y tres moluscos marinos de Sucre, Venezuela

open access: yesRevista de Biología Tropical, 2010
A los extractos crudos de los octocorales Eunicea sp., Muricea sp. y Pseudopterogorgia acerosa y de los moluscos Pteria colymbus, Phylonotus pomum y Chicoreus brevifrons, se les realizaron pruebas químicas, las cuales evidenciaron en todos ellos, la ...
Gabriel Ordaz   +4 more
doaj  

Moluscos asociados a las raíces sumergidas del mangle rojo Rhizophora mangle, en el Golfo de Santa Fe, Estado Sucre, Venezuela

open access: yesRevista de Biología Tropical, 2002
Se realizó un estudio mensual cualitativo y cuantitativo de la comunidad de moluscos asociados a las raíces sumergidas del mangle rojo, Rhizophora mangle, entre octubre de 1998 y septiembre de 1999, en seis estaciones del Golfo de Santa Fe (Estado Sucre,
B. Márquez, M. Jiménez
doaj  

Behavior of Angiostrongylus costaricensis in planorbids

open access: yesBrazilian Journal of Biology
Some terrestrial mollusks are natural hosts of Angiostrongylus costaricensis. In the laboratory, this nematode can be maintained in certain planorbids, which are aquatic mollusks and intermediate hosts of Schistosoma mansoni.
N. M. S. Banevicius   +3 more
doaj   +1 more source

MOLUSCOS DEL INTERMAREAL ROCOSO DEL CENTRO-SUR DE CHILE (36° - 38°S): TAXONOMIA Y CLAVE DE IDENTIFICACION ROCKYSHORE MOLLUSKS OF THE SOUTH-CENTRAL CHILE (36° - 38°S): TAXONOMY AND KEY OF IDENTIFICATION

open access: yesGayana, 2005
Estudios de la biodiversidad existente en la zona intermareal rocosa del centro-sur de Chile, tanto de carácter local como regional, todavía son limitados.
Cristián Aldea, Claudio Valdovinos
doaj  

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