Results 21 to 30 of about 2,447 (195)

A global review of problematic and pathogenic parasites of farmed tilapia

open access: yesReviews in Aquaculture, Volume 15, Issue S1, Page 92-153, February 2023., 2023
Abstract Over the past 80 years, tilapia have been translocated globally for aquaculture; active production is recorded in >124 countries. Of 7 million tonnes of tilapia produced in aquaculture, 79% is from 79 countries outside the natural range of tilapia.
Andrew P. Shinn   +15 more
wiley   +1 more source

Neglected symbionts and other metazoan invertebrates associated with molluscs from Africa's largest lake: Diversity, biotic interactions and bioindication

open access: yesFreshwater Biology, Volume 67, Issue 12, Page 2089-2099, December 2022., 2022
Abstract Freshwater molluscs are hosts for diverse metazoan symbionts. However, apart from the digenean helminths, symbionts of molluscs are underreported worldwide. Therefore, this study focused on the diversity of oligochaetes, leeches, mites, insect larvae and nematodes associated with gastropods and bivalves from Lake Victoria, East Africa. Overall,
James Omondi Outa   +3 more
wiley   +1 more source

Statistical discrimination of sex in Melanoides tuberculata (Gastropoda: Thiaridae) [PDF]

open access: yesBiological Journal of the Linnean Society, 1996
Abstract Systematists may rely on morphometric differences among samples of specimens for the recognition of living and fossil species, even though morphometric differentiation may be caused by non-genetic factors, such as ecophenotypy, differential growth rates and taphonomic mixing.
Scott Brande   +3 more
openaire   +1 more source

Trophic niche of an invasive generalist consumer: Australian redclaw crayfish, Cherax quadricarinatus, in the Inkomati River Basin, South Africa

open access: yesAustral Ecology, Volume 47, Issue 7, Page 1480-1494, November 2022., 2022
Abstract Trophic niche analysis can be used to assess ecological opportunities available to alien species in areas of introduction that might aid their establishment, define their functional role and inform on their potential impacts. This study assessed the trophic niche utilized by an invasive population of the Australian redclaw crayfish, Cherax ...
Tsungai Alfred Zengeya   +5 more
wiley   +1 more source

Ocorrência no Brasil de Thiara (Melanoides) tuberculata (O.F. Muller, 1774) (Gastropoda, Prosobranchia), primeiro hospedeiro intermediário de Clonorchis sinensis (Cobbold, 1875) (Trematoda, Plathyhelmintes) Occurrence of Thiara (Melanoides) tuberculata (O.F. Mullher, 1774) (Gastropoda, Prosobranchia) in Brazil, first intermediate host of Clonorchis sinensis (Cobbold, 1875) (Trematoda, Plathyhelmintes)

open access: yesRevista de Saúde Pública, 1986
Relata-se a introdução em nosso meio de Thiara (Melanoides) tuberculata possivelmente anterior a 1967, quando pela primeira vez foi coletada em Santos. Essa espécie pode comportar-se como primeiro hospedeiro intermediário de Paragonimus westermani e de ...
Jorge Faria Vaz   +3 more
doaj   +1 more source

Distribution, drivers and population structure of the invasive alien snail Tarebia granifera in the Luvuvhu system, South Africa

open access: yesRiver Research and Applications, Volume 38, Issue 8, Page 1362-1373, October 2022., 2022
Abstract Invasive alien species continue to spread and proliferate in waterways worldwide, but environmental drivers of invasion dynamics lack assessment. Knowledge gaps are pervasive in the Global South, where the frequent heavy human‐modification of rivers provides high opportunity for invasion.
Fhatuwani Makherana   +6 more
wiley   +1 more source

Recurrent camouflaged invasions and dispersal of an Asian freshwater gastropod in tropical Africa [PDF]

open access: yes, 2015
Background: Non-indigenous taxa currently represent a large fraction of the species and biomass of freshwater ecosystems. The accumulation of invasive taxa in combination with other stressors in these ecosystems may alter the habitats to which native ...
Albrecht, Christian   +5 more
core   +3 more sources

Structure and functional composition of macroinvertebrate communities in coastal plain streams across a precipitation gradient

open access: yesFreshwater Biology, Volume 67, Issue 10, Page 1725-1738, October 2022., 2022
Abstract Climate change is expected to alter rainfall and temperature regimes across the world. The hydrology and riparian zone vegetation of lotic ecosystems are tightly linked to rainfall and a mechanistic understanding of the effects of rainfall on lotic ecosystems is needed to forecast the ecological impacts of climate change.
Fernando R. Carvallo   +5 more
wiley   +1 more source

Niche filtering, competition and species turnover in a metacommunity of freshwater molluscs

open access: yesOikos, Volume 2022, Issue 9, September 2022., 2022
Metacommunity structure reflects the interplay of various processes, including niche filtering, extinction/colonization and interspecific interactions. Spatial patterns of species distributions are often analyzed to infer these processes. However, such inferences rely on often unrealistic equilibrium assumptions, and remain ambiguous, as different ...
Maxime Dubart   +3 more
wiley   +1 more source

New records of the invasive mollusk Melanoides tuberculata (Müller, 1774) (Gastropoda, Thiaridae) in the Brazilian Northeast [PDF]

open access: yesCheck List, 2019
Melanoides tuberculata (Müller, 1774) was recorded during field surveys of the malacofauna of Território Vale do Guaribas in Piauí state, northeastern Brazil.
Edson Lourenço da Silva   +5 more
doaj   +3 more sources

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