Results 1 to 10 of about 230 (160)

The Pontastacus leptodactylus (Astacidae) Repeatome Provides Insight Into Genome Evolution and Reveals Remarkable Diversity of Satellite DNA [PDF]

open access: yesFrontiers in Genetics, 2021
Pontastacus leptodactylus is a native European crayfish species found in both freshwater and brackish environments. It has commercial importance for fisheries and aquaculture industries. Up till now, most studies concerning P.
Ljudevit Luka Boštjančić   +10 more
doaj   +2 more sources

Fine structure of the spermatozoon in three species of Cambaridae (Arthropoda: Crustacea: Decapoda) Cambarus robustus, Orconectes propinquus and Orconectes rusticus: a comparative biometrical study [PDF]

open access: yesPeerJ, 2016
The ultrastructure of spermatozoa in three species of cambarid crayfish, Cambarus robustus, Orconectes propinquus, and Orconectes rusticus, were studied and compared with eight previously studied species from different crayfish families using ...
Buket Yazicioglu   +4 more
doaj   +3 more sources

DISTRIBUTION OF AUSTROPOTAMOBIUS TORRENTIUM (DECAPODA: ASTACIDAE) IN SLOVAKIA [PDF]

open access: yesKnowledge and Management of Aquatic Ecosystems, 2005
The distribution of the stone crayfish Austropotamobius torrentium (SCHRANK, 1803) in Slovakia is restricted to only some creeks in the Malé Karpaty Mountains.
STLOUKAL E., HARVÁNEKOVÁ M.
doaj   +2 more sources

The La Voulte-sur-Rhône Konservat-Lagerstätte reveals the male and female internal anatomy of the Middle Jurassic clawed lobster Eryma ventrosum [PDF]

open access: yesScientific Reports
The biology of extinct animals is usually reconstructed from external morphological characters and comparison with present-day analogues. Internal soft organs are very rarely preserved in fossils and require high-tech approaches for visualization.
Sylvain Charbonnier   +8 more
doaj   +2 more sources

GENETIC COMPARISONS OF GERMAN POPULATIONS OF THE STONE CRAYFISH, AUSTROPOTAMOBIUS TORRENTIUM (CRUSTACEA: ASTACIDAE)

open access: yesKnowledge and Management of Aquatic Ecosystems: an International Journal on Aquatic Ecosystems, 2006
Austropotamobius torrentium (SCHRANK, 1803) is the smallest of the European native crayfish species and has probably never been of economic interest. It is confined to headwaters and adapted to cold water with high flow through and rocky environments ...
SCHUBART C. D., HUBER M. G.J.
exaly   +2 more sources

Comparative Ultrastructure and Carbohydrate Composition of Gastroliths from Astacidae, Cambaridae and Parastacidae Freshwater Crayfish (Crustacea, Decapoda) [PDF]

open access: yesBiomolecules, 2012
Crustaceans have to cyclically replace their rigid exoskeleton in order to grow. Most of them harden this skeleton by a calcification process. Some decapods (land crabs, lobsters and crayfish) elaborate calcium storage structures as a reservoir of ...
Gérard Alcaraz   +7 more
doaj   +2 more sources

World of Crayfish™: a web platform towards real-time global mapping of freshwater crayfish and their pathogens [PDF]

open access: yesPeerJ
Freshwater crayfish are amongst the largest macroinvertebrates and play a keystone role in the ecosystems they occupy. Understanding the global distribution of these animals is often hindered due to a paucity of distributional data.
Mihaela C. Ion   +90 more
doaj   +3 more sources

Postembryonic development in freshwater crayfish (Decapoda: Astacidea) in an evolutionary context [PDF]

open access: yesNauplius, 2022
Detailed morphology of the first three postembryonic developmental stages (Stages I-III juvenile) in representatives from all four crayfish families, Austropotamobius torrentium (von Paula Schrank, 1803) (Astacidae), Procambarus virginalis Lyko, 2017 ...
Tadashi Kawai, Antonín Kouba
doaj   +1 more source

Overlooked keystone species in conservation plans of fluvial ecosystems in Southeast Europe: a review of native freshwater crayfish species

open access: yesKnowledge and Management of Aquatic Ecosystems, 2022
Although a large number of rivers stretches in Southeast Europe (SEE) have a pristine status compared to the rest of Europe, these ecosystems and their freshwater biodiversity are perceptibly threatened.
Danilović Milan   +2 more
doaj   +1 more source

First record and DNA barcodes of the invasive blue-coloured spiny-cheek crayfish Faxonius limosus (Rafinesque, 1817) (Decapoda: Cambaridae)

open access: yesKnowledge and Management of Aquatic Ecosystems, 2020
This contribution presents first record of a blue colour morph of spiny-cheek crayfish, Faxonius limosus (Rafinesque, 1817). Two unusually coloured individuals were caught in Poland, in two different locations, separated from each other by approximately ...
Maciaszek Rafał   +3 more
doaj   +1 more source

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