Results 21 to 30 of about 29,926 (256)

Lacustrine mollusc radiations in the Lake Malawi Basin : experiments in a natural laboratory for evolution [PDF]

open access: yes, 2012
In terminal Pliocene-early Pleistocene times, part of the Malawi Basin was occupied by paleo-lake Chiwondo. Molluscan biostratigraphy situates this freshwater lake either in the East African wet phase between 2.7-2.4 Ma or that of 2.0-1.8 Ma.
Gautier, Achilles, Van Damme, Dirk
core   +3 more sources

Unravelling the Potamonautes lirrangensis (Rathbun, 1904) species complex (Potamoidea: Potamonautidae), with the description of two new species

open access: yesEuropean Journal of Taxonomy, 2021
The taxonomic status of the widely distributed freshwater crab Potamonautes lirrangensis (Rathbun, 1904) sensu lato is revised because morphological and molecular evidence indicates that this taxon is a complex comprising more than one species. Four taxa
Neil Cumberlidge   +3 more
doaj   +1 more source

Ocean acidification affects marine chemical communication by changing structure and function of peptide signalling molecules [PDF]

open access: yes, 2016
Ocean acidification is a global challenge that faces marine organisms in the near future with a predicted rapid drop in pH of up to 0.4 units by the end of this century.
Adamo   +69 more
core   +1 more source

Investigation and evaluation of cadmium in crabs sold in Beijing from 2018 to 2020

open access: yesZhongguo shipin weisheng zazhi, 2021
ObjectiveTo detect the content of Cadmium (Cd) in crab sold in Beijing from 2018 to 2020 and carry out health risk assessment.MethodsRandom sampling method was adopted, common crab sold in Beijing were sampled.
XING Shige   +6 more
doaj   +1 more source

Sundarban mangroves: diversity, ecosystem services and climate change impacts [PDF]

open access: yes, 2016
The Bengal delta coast harboring the famous Sundarban mangroves is extremely vulnerable to climate change. Already, salinity intrusion, increasing cyclones and anomalies in rainfall, and temperature, are causing many social and livelihood problems ...
Dey, Mouri   +6 more
core   +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

The highly rearranged mitochondrial genomes of the crabs Maja crispata and Maja squinado (Majidae) and gene order evolution in Brachyura [PDF]

open access: yes, 2017
We sequenced the mitochondrial genomes of the spider crabs Maja crispata and Maja squinado (Majidae, Brachyura). Both genomes contain the whole set of 37 genes characteristic of Bilaterian genomes, encoded on both \u3b1- and \u3b2-strands.
AD Miller   +67 more
core   +1 more source

Freshwater crabs of the Near East: Increased extinction risk from climate change and underrepresented within protected areas

open access: yesGlobal Ecology and Conservation, 2022
Climate change is known as an important threat to biodiversity, particularly for freshwater organisms as they have limited dispersal ability. Freshwater crabs are ecologically important freshwater macro-invertebrates and play a key role in their ...
Masoud Yousefi   +2 more
doaj   +1 more source

Characterization of oxidative stress biomarkers in a freshwater anomuran crab [PDF]

open access: yesBrazilian Journal of Biology, 2017
Abstract In general, environmental responses at level of populations or communities are preceded by alterations at lower biological levels which can be efficiently detected by the analysis of biomarkers. We analyzed the oxidative biomarkers TBARS and Catalase in Aegla singularis, a freshwater crustacean highly sensitive to environmental changes.
Borges, A. C. P.   +8 more
openaire   +5 more sources

Sex Hormones in Hemolymph of Red King Crabs from the Barents Sea

open access: yesAnimals, 2021
The presence of vertebrate-related steroid sex hormones has been reported in both freshwater and marine crustaceans. However, despite the commercial importance of king crabs, many aspects of their endocrinology are still unknown.
Alexander G. Dvoretsky   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy