Results 11 to 20 of about 4,088 (199)

Absorption of Silver on the Gills of a Freshwater Crab [PDF]

open access: yesNature, 1952
UNDER this title, Dr. D. W. Ewer and Ivan Hattingh1 quote in the following context a passage from a paper of mine2: “The localization of the silver-absorbing areas to certain gills which we have found in Potamon provides an exception to Koch's statement that ‘tous les organes decrits comme branchies chez les Crustaces…absorbent l'Ag'’.” However, the ...
D. W. EWER, IVAN HATTINGH
  +5 more sources

First record of a potamid crab (Decapoda: Brachyura) from Odisha State, India [PDF]

open access: yesNauplius, 2023
Freshwater crabs of the family Potamidae Ortmann, 1896, have so far not been recorded in the state of Odisha in India. We report for the first time a potamid crab, Acanthopotamon martensi (Wood-Mason, 1875), from Odisha.
Sameer Kumar Pati   +2 more
doaj   +1 more source

Top-Down Effect of Arthropod Predator Chinese Mitten Crab on Freshwater Nutrient Cycling

open access: yesAnimals, 2023
Aquatic litter decomposition is highly dependent on contributions and interactions at different trophic levels. The invasion of alien aquatic organisms like the channeled apple snail (Pomacea canaliculata) might lead to changes in the decomposition ...
Lin Wang   +7 more
doaj   +1 more source

Neotropical freshwater crabs (Decapoda: Pseudothelphusidae) shred leaves

open access: yesNauplius, 2020
Freshwater crabs are macroconsumers that are commonly found in Neotropical headwater streams that may play a key role in energy flow and nutrient cycling in detrital food webs.
Carol Yang   +3 more
doaj   +1 more source

Sexual Disruption in the Freshwater Crab (Geothelphusa dehaani) [PDF]

open access: yesIntegrative and Comparative Biology, 2005
To clarify the effect of environmental endocrine disruptors on the induction of secondary sexual characteristics in wild animals, we observed 1,527 male and 1,847 female specimens of sexually mature Japanese freshwater crabs, Geothelphusa dehaani, collected at 12 sample points from 10 rivers in Sasebo City, Nagasaki Prefecture, Japan.
Toshikazu, Ayaki   +4 more
openaire   +2 more sources

Incidence of Paragonimus Metacercariae in Freshwater Crabs in Ammapettai Village: A Pilot Study [PDF]

open access: yesJournal of Clinical and Diagnostic Research
Introduction: Paragonimus westermani is a significant lung fluke parasite that affects humans by causing a disease called paragonimiasis, transmitted through the consumption of inadequately cooked or pickled freshwater crabs (the second intermediate host)
Sunil Kumar Jada   +2 more
doaj   +1 more source

Molecular detection of Paragonimus mexicanus in freshwater crabs: new records in Oaxaca, Mexico [PDF]

open access: yesRevista Brasileira de Parasitologia Veterinária
Paragonimiasis is a zoonotic disease caused by lung flukes of the genus Paragonimus, which use freshwater snails and crustaceans as intermediate hosts and mammals as definitive hosts.
Jaime Vargas-Arzola   +10 more
doaj   +2 more sources

Biased research generates large gaps on invertebrate biota knowledge in Brazilian freshwater ecosystems

open access: yesPerspectives in Ecology and Conservation, 2020
Research biases are common and constant issues in biological research, with major consequences for biodiversity conservation. Freshwaters represent one of the most threatened ecosystems worldwide, but knowledge of freshwater biota is unevenly distributed
Graciele de Barros   +5 more
doaj   +1 more source

Anthropogenic CO2-mediated freshwater acidification limits survival, calcification, metabolism, and behaviour in stress-tolerant freshwater crustaceans [PDF]

open access: yesBiogeosciences, 2021
Dissolution of anthropogenic CO2 is chronically acidifying aquatic ecosystems. Studies indicate that ocean acidification will cause marine life, especially calcifying species, to suffer at the organism and ecosystem levels.
A. R. Quijada-Rodriguez   +7 more
doaj   +1 more source

Lista de los crustáceos decápodos de la cuenca del río Orinoco (Colombia-Venezuela)

open access: yesBiota Colombiana, 2009
Based on Colombia and Venezuela's biological collections, and on a recent literature review, this is the first consolidated species list of decapod crustaceans for the Orinoco river basin.
Guido Pereira   +5 more
doaj   +1 more source

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