Results 151 to 160 of about 937,668 (336)
Abstract Teleocichla comprises small cichlids that inhabit the rapid streams of Amazonian rivers; however, there has been limited research on their encephalon morphology. This study examined the neuroanatomy of four species, focusing on volumetric measurements of their encephalon subregions, and providing a histological description of the encephalon of
Renan Leão‐Reis +4 more
wiley +1 more source
Some observations on the temporal variations of size of copepods and some answers to questions on their biology. [Translation from: Internationale Revue der Gesamten Hydrobiologie und Hydrographie 17 99-114, 1927.] [PDF]
Until now observations on the temporal variation of size of freshwater copepods have not provided much information. Other observers only mention in passing this or that phenomenon from which it is possible to deduct termporal variations.
Rzoska, J.
core
Abstract As habitat salinity markedly differs between the endangered, freshwater‐dwelling Saimaa ringed seal (Pusa saimensis Nordquist, 1899) and the brackish water‐inhabiting Baltic ringed seal (Pusa hispida botnica Gmelin, 1788), we investigated whether this difference has resulted in morphological changes to their kidneys.
Heini Nihtilä, Juha Laakkonen
wiley +1 more source
Abstract Softshell turtles (Pan‐Trionychidae) are an early branching clade of hidden‐necked turtles (Cryptodira) with a rich fossil record extending back to the Early Cretaceous. The evolutionary history of softshell turtles is still unresolved because of their conservative morphology combined with high levels of polymorphism related to morphological ...
Léa C. Girard, Walter G. Joyce
wiley +1 more source
Potentials for fisheries in the Niger Delta: Another green light for self sufficiency in regional food production [PDF]
A discussion is presented on the potential for fishery development in the Niger Delta region, considering engineering activities and food production potentials of the freshwater zone and immediate hinterland, the brackishwater mangrove swamps and the ...
Nalaguo, C.A.
core
Abstract Belonostomus longirostrisis was named for an isolated jaw fragment from freshwater Upper Cretaceous (Campanian) sediments of the Dinosaur Park Formation of Alberta, Canada. Following the description of the Albertan species, numerous isolated cranial and postcranial elements have been collected from the Dinosaur Park Formation and assigned to B.
Mondo Miyazato +4 more
wiley +1 more source
Ethics and evidence based research: Is there a conflict?
M. Felix Freshwater
doaj +1 more source
Using Freshwater Mussels as an Indicator for River Water Quality [PDF]
Using the freshwater mussel to monitor water quality is a practical and advantageous way to use nature’s indicator species. River water quality is an important measurement that is constantly monitored for many purposes.
Clark, Ariana +3 more
core +1 more source
Freshwater Ecosystems: Carbon Sequestration Champions
Nature helps us fight climate change by removing carbon from the atmosphere and storing it underground—a process called carbon sequestration. Some freshwater ecosystems, like lakes, are great at carbon sequestration. Surprisingly, small organisms play a big role here!
Franco Cisterna, Belén +4 more
openaire +2 more sources

