Results 41 to 50 of about 1,097 (149)

A Scanning Electron Microscopic Study on the Appendage Morphology of Astacus leptodactylus (Eschscholtz, 1823) and Pacifastacus leniusculus (Daña, 1852) (Crustácea:Decapoda: Astacoidea) [PDF]

open access: yesInternational Journal of Morphology, 2008
Este estudio compara la morfologia del rostro, pereiopodos 1,2,4 y piezas bucales de los Astacus leptodactylus jovenes con los de Pacifastacus leniusculus. Se observaron las diferencias en la morfologia, en particular, con respecto a las piezas bucales, por ejemplo incluyendo la armadura setal y el numero de dientes en la mandibula.
openaire   +2 more sources

Abundance and habitat associations of two Florida crayfishes, Procambarus paeninsulanus (Faxon, 1914) and P. fallax (Hagen, 1870) (Decapoda: Astacoidea), assessed with N-mixture modeling [PDF]

open access: yesJournal of Crustacean Biology, 2018
The study of crayfishes in their native habitats is limited, even if crayfishes are economically and ecologically important. Such is the case in southeastern USA, a center of global crayfish diversity. This study investigated model-estimated abundance and habitat associations of Procambarus paeninsulanus (Faxon, 1914) and P. fallax (Hagen, 1870) in two
Manteuffel-Ross, Tiffani M.   +2 more
openaire   +2 more sources

Studio della modulazione ormonale della riproduzione e della crescita nei Crostacei Decapodi mediante l'uso di neurormoni ricombinanti ed anticorpi specifici [PDF]

open access: yes, 2008
2006/2007L’ormone iperglicemico dei crostacei (cHH) appartiene ad una famiglia di neuropeptidi che sono prodotti e rilasciati in circolo nel complesso organo X-ghiandola del seno, localizzato nei peduncoli oculari dei crostacei.
Mosco, Alessandro
core   +1 more source

The phylogenetic position of the East Asian freshwater crayfish Cambaroides within the Northern Hemisphere Astacoidea (Crustacea, Decapoda, Astacida) based on molecular data

open access: yesJournal of Zoological Systematics and Evolutionary Research, 2006
The phylogenetic position of the four East Asian freshwater crayfish species of the genus Cambaroides is not settled. Morphological phylogenetic analyses suggest close affinities of Cambaroides with North American Cambaridae. This view is based mainly on characters of the male and female reproductive organs. In contrast, the only molecular phylogenetic
A. Braband, T. Kawai, G. Scholtz
openaire   +1 more source

Analysis and description of burrow structure in four species of freshwater crayfishes (Decapoda: Astacoidea: Cambaridae) using photogrammetry to recreate casts as 3D models

open access: yesJournal of Crustacean Biology, 2019
AbstractFreshwater crayfishes use burrows for predator avoidance, desiccation prevention, foraging, and brood care. Based on their burrow ecology, crayfishes can be categorized as tertiary, secondary, or primary burrowers, with primary burrowers being semi-terrestrial and highly dependent on burrows for survival; secondary and tertiary burrowers have ...
Cassidy L Florey, Paul A Moore
openaire   +1 more source

Translocation Mortality and Local, Regional, and Continental Diet of the Northern River Otter (Lontra canadensis) [PDF]

open access: yes, 2012
The northern river otter (Lontra canadensis) is a semi-aquatic carnivore whose range extends throughout most of the United States and Canada. The northern river otter experienced a severe range contraction post-European settlement, but due to widespread ...
Day, Casey Craig
core   +1 more source

Karyological analysis of freshwater crayfish Austropotamobius pallipes (Lereboullet, 1858) and Austropotamobius torrentium (Schrank, 1803) [PDF]

open access: yes, 2014
Provedeno je kariološko-citogenetičko istraživanje na europskim autohtonim vrstama rakova Austropotamobius pallipes i A. torrentium iz porodice Astacidae. Vrsta A. pallipes ima diploidan broj kromosoma 2n=168, a vrsta A. torrentium ima 2n=164.
Porupski, Ines
core   +1 more source

Monitoring of noble, signal and narrow-clawed crayfish using environmental DNA from freshwater samples [PDF]

open access: yes, 2017
For several hundred years freshwater crayfish (Crustacea-Decapoda-Astacidea) have played an important ecological, cultural and culinary role in Scandinavia.
Agersnap, Sune   +8 more
core   +3 more sources

De nederlandse rivierkreeften (astacoidea & parastacoidea) [PDF]

open access: yes, 2012
Contains fulltext : 103271.pdf (Publisher’s version ) (Open Access)
openaire  

Karyological analisis of freshwater crayfish Astacus astacus, A. leptodactylus and Austropotamobius torrentium (Decapoda, Astacidae) [PDF]

open access: yes, 2013
Ovaj rad donosi nove informacije o kariološkim značajkama autohtonih europskih vrsta slatkovodnih rakova iz rodova Astacus i Austropotamobius (Decapoda, Astacidae). Vrsta Astacus astacus ima diploidan broj kromosoma 2n=176, vrsta A.
Mužić, Margerita
core   +3 more sources

Home - About - Disclaimer - Privacy