Results 31 to 40 of about 80,233 (300)

Early morphogenesis of metacercariae of trematodes Paratimonia sp. Prevot and Bartoli, 1967 in gastropods Hydrobia acuta (Draparnaud, 1805) in the Black Sea environment

open access: yesРоссийский паразитологический журнал, 2021
The purpose of the research is studying the morphology of larvae of Trematoda  Monorchiidae of the genus Paratimonia and establishing possible causes of their accelerated morphogenesis.Materials and methods.
Yu. V. Belousova
doaj   +1 more source

The composition of phosphate granules in the digestive glands of marine prosobranch gastropods: variation in relation to taxonomy [PDF]

open access: yes, 1998
The composition of some 1150 phosphate granules in the digestive glands of over 40 species of marine prosobranch gastropods has been surveyed using a simple preparation technique and semiquantitative SEM x-ray microanalysis. Spectral peaks for Mg, K, Ca,
Bebianno, Maria João   +3 more
core   +1 more source

The intertidal gastropods (Gastropoda: Mollusca) diversity and taxa distribution in Alas Purwo National Park, East Java, Indonesia

open access: yesBiodiversitas Journal of Biological Diversity, 2019
. Susintowati, Puniawati N, Poedjirahajoe, Handayani NSN, Hadisusanto S. 2019. The intertidal gastropods (Gastropoda: Mollusca) diversity and taxa distribution in Alas Purwo National Park, East Java, Indonesia. Biodiversitas 20: 2016-2027.
Susintowati Susintowati   +4 more
semanticscholar   +1 more source

Discharge, substrate type and temperature as factors affecting gastropod assemblages in springs in northwestern Bosnia and Herzegovina [PDF]

open access: yesArchives of Biological Sciences, 2016
In this study, we analyzed changes to gastropod assemblages with regard to the seasonal variations of discharge, substrate composition and temperature in 19 springs in northwestern Bosnia and Herzegovina.
Dmitrović Dejan   +2 more
doaj   +1 more source

Saxitoxin Group Toxins Accumulation Induces Antioxidant Responses in Tissues of Mytilus chilensis, Ameghinomya antiqua, and Concholepas concholepas during a Bloom of Alexandrium pacificum

open access: yesAntioxidants, 2022
Saxitoxin (STX) group toxins consist of a set of analogues which are produced by harmful algal blooms (HABs). During a HAB, filter-feeding marine organisms accumulate the dinoflagellates and concentrate the toxins in the tissues.
Javiera Oyaneder-Terrazas   +3 more
doaj   +1 more source

Assembly processes of gastropod community change with horizontal and vertical zonation in ancient Lake Ohrid: a metacommunity speciation perspective [PDF]

open access: yes, 2016
The Balkan Lake Ohrid is the oldest and most diverse freshwater lacustrine system in Europe. However, it remains unclear whether species community composition, as well as the diversification of its endemic taxa, is mainly driven by dispersal limitation ...
Albrecht, Christian   +2 more
core   +1 more source

Gastropods alien to South Africa cause severe environmental harm in their global alien ranges across habitats

open access: yesEcology and Evolution, 2018
Alien gastropods have caused extensive harm to biodiversity and socioeconomic systems like agriculture and horticulture worldwide. For conservation and management purposes, information on impacts needs to be easily interpretable and comparable, and the ...
David Kesner, S. Kumschick
semanticscholar   +1 more source

A High Throughput Screening HPLC-FLD Method for Paralytic Shellfish Toxins (PSTs) Enabling Effective Official Control

open access: yesMolecules, 2022
Paralytic Shellfish Toxins (PSTs) are marine biotoxins, primarily produced by dinoflagellates of the genera Gymnodinium spp., Alexandrium spp. They can accumulate in shellfish and, through the food chain, be assimilated by humans, giving rise to ...
Melania Siracusa   +8 more
doaj   +1 more source

Taxonomy and palaeoecology of continental Gastropoda (Mollusca) from the Late Pleistocene mammoth-bearing site of Bullendorf in NE Austria [PDF]

open access: yes, 2018
We present a taxonomic and palaeoecological analysis of a continental mollusc fauna from a mammoth-bearing succession near Bullendorf in Lower Austria.
Carobene, Daria   +3 more
core   +2 more sources

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

open access: yesLethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido   +4 more
wiley   +1 more source

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