Results 11 to 20 of about 7,104 (207)

Effects of Land-Use and Environmental Factors on Snail Distribution and Trematode Infection in Ethiopia

open access: yesTropical Medicine and Infectious Disease, 2023
Freshwater snails are intermediate hosts for several snail-borne diseases affecting humans and animals. Understanding the distribution of snail intermediate hosts and their infection status is very important to plan and implement effective disease ...
Seid Tiku Mereta   +10 more
doaj   +1 more source

The exotic gastropod Clea helena (von dem Busch, 1847) as a predator of freshwater gastropods: a threat to native biota in India?

open access: yesLimnological Review, 2021
The carnivorous snail Clea (Anentome) helena (von dem Busch, 1847) (Gastropoda: Nassariidae), commonly called as the “assassin snail” is sold worldwide including India for aesthetics and the ability to kill pest snails in aquaria.
Paul Pranesh   +5 more
doaj   +1 more source

ENVIRONMENTAL STRESS AND THE MAINTENANCE OF SEX IN A FRESHWATER SNAIL [PDF]

open access: yesEvolution, 1998
Synergism among mutations can lead to an advantage to sexual reproduction, provided mutation rates are high enough (the mutational deterministic hypothesis). Here we tested the idea that competition for food can increase the advantage to sexual reproduction, perhaps by increasing the synergism among mutations in asexual individuals.
Lively CM, Lyons EJ, Peters AD, Jokela J
openaire   +3 more sources

Schistosomiasis prevention option: toxicological evaluation of Vernonia amygdalina on the tissues of Bulinus truncatus at different pH conditions

open access: yesHeliyon, 2020
Research into, and the use of plant products in the control of vectors of pathogens is being revived and seriously considered as an alternative or complete replacement for the classical synthetic agents.
J.C. Eze   +4 more
doaj   +1 more source

Value-chain analysis of freshwater apple snail (Pila globosa) used for on-farm feeds in the freshwater prawn farming sector in Bangladesh

open access: yesInternational Journal of Agricultural Research, Innovation and Technology, 2013
Growth of the freshwater prawn (Macrobrachium rosenbergii) sector in Bangladesh since 1970s has been supported by natural availability of freshwater apple snail (Pila globosa), used for on-farm prawn feeds.
S.A.A. Nahid
doaj   +1 more source

PHYSID SNAILS AS SENTINELS OF FRESHWATER NEMATOMORPHS

open access: yesJournal of Parasitology, 2001
Freshwater nematomorphs, or gordiids, are parasitic as larvae, but free-living in aquatic environments as adults. Studies based on the collection of adults have reported gordiids to be widespread, but discontinuous in distribution. However, a relatively short adult life span and unknown life history make the detection of adults difficult.
Hanelt, Ben   +2 more
openaire   +3 more sources

Pengaruh pemberian berbagai jenis keong terhadap pertumbuhan dan kelangsungan hidup ikan patin (Pangasius pangasius)

open access: yesActa Aquatica, 2019
Abstrak Ikan Patin (Pangasius pangasius) merupakan ikan air tawar yang memiliki nilai ekonomis yang tinggi. Untuk membantu mempercepat pertumbuhan selain dengan menggunakan pellet, ikan patin juga dapat diberikan pakan alami seperti keong mas (Pomacea ...
Mainisa Mainisa
doaj   +1 more source

Predation of Glossiphonia weberi (Blanchard, 1897) on the invasive snail Physella acuta (Draparnaud, 1805) in the presence of an alternative prey

open access: yesLimnological Review, 2021
The North American freshwater snail Physella acuta has invaded and colonized a wide range of freshwater habitats, globally. Resembling other invasive species, P. acuta has several negative impacts on the invaded freshwater ecosystems, which calls for its
Paul Pranesh   +5 more
doaj   +1 more source

Toxicity of Metals to a Freshwater Snail,Melanoides tuberculata [PDF]

open access: yesThe Scientific World Journal, 2012
Adult freshwater snailsMelanoides tuberculata(Gastropod, Thiaridae) were exposed for a four-day period in laboratory conditions to a range of copper (Cu), cadmium (Cd), zinc (Zn), lead (Pb), nickel (Ni), iron (Fe), aluminium (Al), and manganese (Mn) concentrations.
M. Shuhaimi-Othman   +2 more
openaire   +3 more sources

Invasive alien freshwater snail species in the Kruger National Park, South Africa

open access: yesKoedoe: African Protected Area Conservation and Science, 2008
An account is given of all invasive alien freshwater snail species samples found in the Kruger National Park currently on record in the National Freshwater Snail Collection(NFSC) database. This report mainly focuses on samples collected during surveys of
Kenné N. De Kock   +1 more
doaj   +1 more source

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