Results 81 to 90 of about 2,813 (227)
ABSTRACT Over the past decades, the growth in human population and economic activities has led to an increase in maritime traffic. This rise puts additional pressure on marine environments, vessel fuel spills being considered to have a major impact on the ecosystem.
Carlos Valiente‐Diaz +2 more
wiley +1 more source
On the Sterols of Mollusks, Snails and Bivalves
The compositions of sterols of snails and bivalves were determined. In this study, six species of marine snails, two species of fresh-water snails, two species of marine bivalves, fresh-water and brackish-water bivalve were examined.The unsaponifiable matter was acetylated and separated in to several fractions by silver nitrateimpregnated silicic acid ...
openaire +2 more sources
Performance and Challenges in the Value Chain of the Anadara tuberculosa Bivalve Mollusk in Ecuador [PDF]
The bivalve mollusk, Anadara tuberculosa (Black Shell, in Spanish Concha Prieta), is found on America’s Pacific coast, where it is harvested for subsistence and commercial markets.
Carlos Rodríguez-Monroy +5 more
core +1 more source
Bioaccumulation of bacteriophages T4 and RB43 by freshwater bivalves in sterile aquarium water
In our study, we investigated the bioaccumulation of T4 and RB43 bacteriophages by the bivalve mollusks U. pictorum and A. cygnea . Additionally, tests were conducted to determine the content of E.
Maria K. Bulavina +4 more
doaj +1 more source
Our study shows that non‐native species alter the relationship between the size‐spectrum slope and the predator–prey mass ratio (PPMR) in freshwater fish communities by occupying distinct trophic niches. Abstract The size spectrum, which describes the relationship between abundance (or biomass) and body size, is an ataxic approach that can provide ...
Valentin Marin +3 more
wiley +1 more source
Optimal designs of mollusk shells from bivalves to snails [PDF]
AbstractBivalve, ammonite and snail shells are described by a small number of geometrical parameters. Raup noted that the vast majority of theoretically possible shell forms do not occur in nature. The constraint factors that regulate the biased distribution of natural form have long since been an open problem in evolution.
Takuya Okabe, Jin Yoshimura
openaire +2 more sources
Characteristics of bivalve mollusk Serripes groenlandicus in connection with its rational use [PDF]
Greenland cockle Serripes groenlandicus is a burrow bivalve mollusk that forms dense aggregations on silty-sandy and muddy grounds at the depth 50-60 m. Its total stock in Peter the Great Bay is estimated as 8,700 t.
Galina I. Zagorodnaya +5 more
core +2 more sources
Does Roundup affect zinc functions in a bivalve mollusk in ex vivo exposure? [PDF]
Roundup (Rn), a glyphosate-based formulation, is one of the most frequently used herbicides in the world. It was found to affect non-targeted organisms in several ways including adhesive activity towards metal ions.
Gnatyshyna, L (via Mendeley Data)
core +1 more source
Juvenile Procambarus clarkii exposed to noise exhibited behavioral changes, shifts in enzymatic activity, and altered expression of stress and immune genes. The findings highlight the sensitivity of invertebrate juveniles to anthropogenic acoustic pollution.
Maria Ceraulo +8 more
wiley +1 more source
Validation of Pilot Protocol: Damage Scoring of Puget Sound Mollusk Shells [PDF]
The Marine Sediment Monitoring Team at the Washington State Department of Ecology observed damage to mollusk shells while studying the benthic communities of Puget Sound. A pilot protocol was written to allow researchers to quantify the damage.
Doffing, Lauren
core +4 more sources

