Results 81 to 90 of about 47,550 (221)
The last common bilaterian ancestor [PDF]
, 2002 Many regulatory genes appear to be utilized in at least superficially similar ways in the development of particular body parts in Drosophila and in chordates.
Davidson, Eric H., Erwin, Douglas H.
core
Consecutive wildfires affect stream biota in cold- and warmwater dryland river networks [PDF]
, 2015 Citation: Whitney, J. E., Gido, K. B., Pilger, T. J., Propst, D. L., & Turner, T. F. (2015). Consecutive wildfires affect stream biota in cold- and warmwater dryland river networks. Freshwater Science, 34(4), 1510-1526.
Gido, Keith B. +4 more
core +1 more source
A guide to the freshwater fauna of Ceylon [PDF]
, 1962 Freshwater animals are of importance in the economy of most countries. In recent years the scientific cultivation of freshwater fish for food has been spreading throughout South-East Asia and the Far-East.
Fernando, C.H. +2 more
core
LIFE CYCLE AND PARATENESIS OF AMERICAN GORDIIDS (NEMATOMORPHA: GORDIIDA)
Journal of Parasitology, 2004 To complete their life cycle, gordiids must make a transition from aquatic to terrestrial environments. However, epibenthic aquatic larvae and their terrestrial definitive hosts do not overlap in habitat. This has led many investigators to suggest that infections are acquired through the ingestion of insects, which become infected as aquatic larvae ...
Hanelt, Ben, Janovy, John J., Jr.
openaire +3 more sources
RIVPACS database documentation. Final report [PDF]
, 2007 With the advent of the EU Water Framework Directive the concept of the 'reference condition' has become explicit within the legislative framework of the European Union.
Clarke, Ralph +6 more
core
NUEVOS GORDIUS PARA LA ARGENTINA (GORDIACEA, NEMATOMORPHA)
ACTA ZOOLÓGICA MEXICANA (N.S.), 1996 Twn tinw spocics of Gordius froni Argontine (G. labiclus and G. deltaensis) are dnscrihed. DeleriTimation of these species was achieve by the ultrastructural analysis of cutido. A redescription ot G. nttnni Redlicli (1980) is aiso provided.
Delma B. De Miralles +1 more
openaire +1 more source
Long-Term Study of Benthos in Dardanelle Reservoir [PDF]
, 1994 Winter, spring, summer, and autumn samples were collected with a 15.24x15.24-cm Ekman grab from five stations on Dardanelle Reservoir, Pope County, Arkansas during the 24-year period from 1970-1993.
Rickett, John D., Watson, Robert L.
core +1 more source
Predation on Horsehair Worms (Phylum Nematomorpha)
Journal of Freshwater Ecology, 1999 ABSTRACT Field observations revealed cases of predation on horsehair worms by brown trout (Salmo trutta) in Maryland and Minnesota, a rock bass (Ambloplites rupestris) in Kentucky, and a crayfish in Wisconsin. Some fish contained more than one worm and may have consumed reproductive aggregations. In laboratory feeding trials with Gordius robustus, most
Philip A. Cochran +2 more
openaire +1 more source
Aquatic Macroinvertebrates of the St. Francis Sunken Lands in Northeast Arkansas [PDF]
, 1990 The primary objective of this study was to survey the aquatic macroinvertebrate diversity of the St. Francis Sunken Lands in northeast Arkansas. Secondary objectives were a determination of their relative abundance and distributional and seasonal ...
Cochran, Betty G., Harp, George L.
core +1 more source
Clockwork intruders: Do parasites manipulate their hostsʼ circadian rhythms?
Current Research in Parasitology and Vector-Borne DiseasesMost organisms have developed circadian clocks to adapt to 24-hour cycles in the environment. These clocks have become crucial for modulating and synchronizing complex behavioral and biological processes.
Sebastián Boy-Waxman +2 more
doaj +1 more source