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Jornais Acesso aberto

Herman Ottó, Közli Herman Ottó, Herman Ottó, Csató János, Herman Ottó, Csató János, Herman Ottó, Dr. Károli János-Tól, Joanne Fravaldszky, Dr. Stefeek Adolf-Tól, Alexandro Mocsáry, Mocsáry Sándor, Dr. Horváth Géza, Dr. Bartsch Samu-Tól, Janka Victor, Ludovico Simkovics, Simkovics Lajos, Simkovics Lajos, Augustus Kanitz, Dr. Roth Samu-Tól, Otto Herman, Otto Herman, J. V. Csató, Dr. G. V. Horváth, Dr. S. Bartsch, Victor V. Janka,

Essay: Torzcsorü Szürke Harkály. Picus Canus, Gml., Az Astacus Leptodactylus, Esch. Ivarszervei Anatomiai Tanulmany, Centaurea Sadleriana Janka, ... Musaei Nationalis Hungarici, Zur Terminologie, Die Fortpflanzungsorgane Des Astacus Leptodactylus, Esch, Állattan. Zoologia A Magyar Madártan Irodalma, ...

0000 - Gale Group | NCCO-STM 1of2

Artigo Acesso aberto Revisado por pares

Antonín Kouba, Hamid Niksirat, Iryna Kuklina, Miloš Buřič, Pavel Kozák,

... recirculating systems in artificial incubation of noble crayfish (Astacus astacus) eggs: opportunities and limitations Antonín Kouba, Corresponding Author ... with an initial formaldehyde bath for noble crayfish (Astacus astacus) eggs incubated in semi-recirculating systems, which requires ... effects of nitrite and nitrate in freshwater crayfish (Astacus astacus). Aquatic Toxicology 34, 95–104. Keefe A. & Rouse ... Kozák P. (2010) Artificial incubation of noble crayfish (Astacus astacus) eggs in a partially recirculating system using ...

Tópico(s): Cephalopods and Marine Biology

2011 - Wiley | Aquaculture Research

Jornais Acesso aberto

Dr. Bartsch Samu-Tól, V. De Janka, Dr. Entz Gézá-Tól, Dr. Károli János, Frivaldszky János, Joanne Frivaldszky, Alexandro Mocsáry, Mocsáry Sándor, Ludovico Simkovics, Simkovics Lajos, Simkovics Lajos, Herman Ottó, Dr. Horváth Géza, Lanius Major. Pall, Dr. Entz Gézá-Tól, Professor Ed. Hackel,

... Specierum Subgeneris Anophthalmus, Hucusque in Hungaria Detectarum, Az Astacus Leptodatylus, Esch. Táplálkozási És Emésztési Szervei, Néhány Bánsági ...

0000 - Gale Group | NCCO SciTechMed 2 of 2

Artigo Revisado por pares

Jelena Mlinarec, M. Mcžić, Mirjana Pavlica, Maja Šrut, Göran Klobučar, Ivana Maguire,

... characteristics of the endangered species of European crayfish, Astacus astacus and A. leptodactylus (Decapoda, Astacidae), both native to Croatian freshwater habitats. The karyotype of A. astacus and A. leptodactylus consists of 2n = 176 and ... chromosomes, respectively. The haploid chromosome complement of A. astacus consists of 52 metacentric, 35 metacentric-submetacentric, and ... DAPI) has revealed that the karyotypes of A. astacus and A. leptodactylus are characterized by large heterochromatic ... Interstitial heterochromatic blocks were more frequent in A. astacus than in A. leptodactylus. In both species pairing ...

Tópico(s): Parasite Biology and Host Interactions

2011 - Brill | Crustaceana

Artigo Revisado por pares

Vladica Simić, Ana Petrović, Milka Rajković, Momír Paunović,

... crayfish have been identified: three native, i.e., Astacus astacus (river crayfish), Astacus leptodactylus (Danube crayfish) and Austropotamobius torrentium (spring crayfish), ... the data from a 60-year period, A. astacus is the most endangered species of crayfish in ... 1), the degree of the endangerment of A. astacus in Serbia is evaluated as Endangered (EN), which ... d'ecrevisses ont ete identifiees: trois especes indigenes, Astacus astacus (ecrevisse a pieds rouges), Astacus leptodactylus (ecrevisse a pattes greles), et Austropotamobius torrentium ( ...

Tópico(s): Marine Biology and Ecology Research

2008 - Brill | Crustaceana

Artigo Revisado por pares

Bjarne Styrishave, Berit H. Bojsen, Hanne Witthøfft, Ole Andersen,

... continuously in seven individuals of the noble crayfish Astacus astacus (Linneus 1758) and seven individuals of the signal ... and oxygen consumption were found both in A. astacus and P. leniusculus. Increased heart rate, locomotor activity, ... consumption levels during night time in both A. astacus and P. leniusculus illustrated expression of nocturnal behaviour. ... in oxygen consumption levels were observed between A. astacus and P. leniusculus. Also, no significant difference between ... or heart rate variances was found in A. astacus and P. leniusculus at night. During day, however, ...

Tópico(s): Cephalopods and Marine Biology

2007 - Taylor & Francis | Marine and Freshwater Behaviour and Physiology

Artigo Revisado por pares

Yavuz Mazlum,

... stocking density on the growth and survival of Astacus leptodactylus juveniles was evaluated. Newly hatched third instars ... feed conversion ratio (FCR) being affected by density. Astacus leptodactylus had a normal length distribution of 11- ... findings for optimal intensive culture conditions for juvenile Astacus leptodactylus are discussed. L'effet de la densite ... la croissance et la survie des juveniles d' Astacus leptodactylus a ete evalue. Des troisiemes stades nouvellement ... par la densite. Au debut de l'experimentation, Astacus leptodactylus presentait une distribution de longueur normale de ...

Tópico(s): Aquaculture Nutrition and Growth

2007 - Brill | Crustaceana

Artigo Revisado por pares

Holger K. Schulz, Przemysław Śmietana, Ralf Schulz,

... highest density of stocks of the noble crayfish Astacus astacus (L.) in the lowlands of north‐western Poland. ... trapping. Nine lakes with known occurrence of A. astacus were investigated. Each lake was surveyed with regard ... potential environmental variables. The estimated densities of A. astacus populations varied from very abundant (6.6 adult ... with the trophic status of the lakes. A. astacus occurred in lakes ranging from mesotrophic to eutrophic. ... suggest that both occurrence and density of A. astacus populations depended on criteria associated with human activities ...

Tópico(s): Marine Biology and Ecology Research

2005 - Wiley | Aquatic Conservation Marine and Freshwater Ecosystems

Artigo Revisado por pares

Kai Westman, Riitta Savolainen, Markku Julkunen,

The native noble crayfish Astacus astacus L., and the introduced North American signal crayfish Pacifastacus leniusculus Dana, co‐occur in Slickolampi, a small lake in southern Finland. ... annual trap catches and population size estimates, A. astacus was clearly dominant in the 1970s and most ... this lake but has almost completely replaced A. astacus . Both species seem to a great extent to ... demanding and was encountered less often than A. astacus on gently‐sloping soft shores. The proportion of A. astacus with chelae injuries (16 yr, mean 17.3%) ...

Tópico(s): Marine Biology and Ecology Research

2002 - Wiley | Ecography

Artigo

G�nter Vogt, Melanie Rug,

... a vector for Psorospermium haeckeli to noble crayfish, Astacus astacus. Aquaculture 148: 1–9. Haeckel E. 1857. Ueber ... notes on Psorospermium haeckeli in the European crayfish, Astacus astacus. Aquaculture 120: 209–218. Henttonen P, Huner JV, ... in freshwater crayfish (Arthropoda, Decapoda) with emphasis on Astacus astacus L. (Astacidae) and Procambarus clarkii (Girard) (Cambaridae). Aquaculture ... Psorospermium haeckeli, a parasite on the European crayfish, Astacus astacus, found in Finland. Freshwater Crayfish 4: 385– ...

Tópico(s): Marine Biology and Ecology Research

1999 - Wiley | Journal of Experimental Zoology

Artigo Acesso aberto Revisado por pares

Günter Vogt, Monika Keller, Dirk Brandis,

... a population naturally mixed with the noble crayfish Astacus astacus Vogt G, Keller M, Brandis D The crayfish ... place where A. torrentium and the noble crayfish Astacus astacus have coexisted for more than 20 yr. Screening ... of P. haeckeli which is typical of A. astacus. The distribution pattern of the parasite was similar ... have been transmitted to A. torrentium from A. astacus. Psorospermium haeckeli . Astacus astacus . Austropotamobius torrentium . Crayfish . Parasite Full text in pdf ...

Tópico(s): Invertebrate Immune Response Mechanisms

1996 - Inter-Research | Diseases of Aquatic Organisms

Artigo Revisado por pares

BJÖRN SÖDER BÄCK,

... Pacifastacits leniusculus is currently replacing the native crayfish Astacus astacus in a Swedish lake. Using field data from ... had a higher per capita egg production than Astacus . 3. A higher frequency of non‐lethal injuries in Astacus suggested the predominance of Pacifastacus in interference interactions. ... recruitment of young‐of‐the‐year (YOY) in Astacus . Poor recruitment in Astacus was probably caused by the combined effects of ... and predation, resulting in increased mortality among YOY Astacus , and by reproductive interference, suppressing the less common ...

Tópico(s): Marine Biology and Ecology Research

1995 - Wiley | Freshwater Biology

Artigo Revisado por pares

Bernard Duvic, Kenneth Söderhäll,

ABSTRACT Two fresh-water crayfishes, Astacus astacus and Procambarus clarkii, and a marine crab, Carcinus maenas, were examined for the presence of β-1,3-glucan-binding proteins in ... Pacifastacus leniusculus, 2 proteins from the plasma of Astacus astacus with molecular masses of about 105 kDa and ... antibodies. The cross-reactive proteins from plasma of Astacus astacus were purified by immuno-affinity chromatography. The isolated ... 4. The purified proteins from the plasma of Astacus astacus enhanced the activity of a hemocyte lysate ...

Tópico(s): Studies on Chitinases and Chitosanases

1993 - Oxford University Press | Journal of Crustacean Biology

Artigo Revisado por pares

Jay V. Huner, Ossi V. Lindqvist, Helena Könönen,

Sexually mature Astacus astacus (37–64 mm cephalothorax length) and Procambarus clarkii (35–70 mm cephalothorax length) differed significantly in appearance. Astacus astacus had larger chelae and broader bodies; however, cephalothorax ... of edible muscle to like-sized male A. astacus but female P. clarkii did not as chelae ... those of males or both sexes of A. astacus. Muscle composition was comparable in both species, having ...

Tópico(s): Marine Bivalve and Aquaculture Studies

1988 - Elsevier BV | Aquaculture

Artigo Revisado por pares

Sture A. A. Abrahamsson,

... and males in the second. Corresponding ages for Astacus astacus are the fourth and the third summer, respectively. ... and the number of pleopod eggs in both Astacus and Pacifastacus. Comparison of eggbearing females of Pacifastacus of the 90-99 mm size group with Astacus showed a lower egg production for Astacus. The differences in Rogle Ponds, Sweden were probably ... by pressure of food shortage on the dense Astacus population. Both males and females of Astacus and Pacifastacus reproduced every year after attaining adult ...

Tópico(s): Parasite Biology and Host Interactions

1971 - Wiley | Oikos

Artigo Revisado por pares

Riho Gross, Kuldar Kõiv, Lilian Pukk, Katrin Kaldre,

... microsatellite loci were developed for the noble crayfish (Astacus astacus) using Illumina MiSeq next generation sequencing technology. It ... assay was tested on 232 individuals of A. astacus originating from seven wild populations in Czech Republic ... successfully cross-amplified in the narrow-clawed crayfish (Astacus leptodactylus) from which 14 were polymorphic. In addition, ... possessed species-specific allele size range in A. astacus and A. leptodactylus and can be applied for ...

Tópico(s): Genetic diversity and population structure

2016 - Elsevier BV | Aquaculture

Artigo Acesso aberto

Emmanuil Koutrakis, Costas Perdikaris, Y. Machino, G. SAVVIDIS, N. S. Margaris,

... indigenous crayfish species (ICS) occur in Greek waters: Astacus astacus, Astacus leptodactylus and Austropotamobius torrentium, as well as one ... the most southern natural distribution limit for A. astacus and A. torrentium in the world. Concerning NICS, ... 1980’s respectively, in order to replace A. astacus stocks impoverished by human activities. Recently, Cherax quadricarinatus ... torrentium there. It is also suspected that A. astacus may co-occur there with these two species, as three large male specimens of A. astacus were caught in a creek close to the ...

Tópico(s): Marine Biology and Ecology Research

2007 - EDP Sciences | Bulletin Français de la Pêche et de la Pisciculture

Artigo Revisado por pares

Björn Söderbäck,

Juveniles of the native crayfish Astacus astacus and the newly introduced crayfish Pacifastacus leniusculus were reared separately in artificial ponds in the presence and absence of a predatory fish, ... between the two species. The prediction that A. astacus, because of a common evolutionary history with perch, ... The juvenile growth rate is slower in A. astacus than in P. leniusculus and, consequently, A. astacus is at a preda tion-vulnerable size for ... juvenile period may therefore be higher for A. astacus than for P. leniusculus.

Tópico(s): Marine Biology and Ecology Research

1992 - Finnish Zoological and Botanical Publishing Board | Annales Zoologici Fennici

Artigo Revisado por pares

Björn Söderbäck,

... intraspecific aggressive interactions in the coexisting crayfish species Astacus astacus and Pacifastacus leniusculus were experimentally studied in the ... strongly dominated aggressive interactions with similar-sized A. astacus in heterospecific pairs of juveniles and adults. Pairs ... inclined to establish a dominance order than A. astacus. The aggressive dominance of P. leniusculus over A. astacus indicates that P. leniusculus might be able to competitively exclude A. astacus when the species are competing for a limited ...

Tópico(s): Parasite Biology and Host Interactions

1991 - NRC Research Press | Canadian Journal of Zoology

Artigo Acesso aberto Revisado por pares

Leona Lovrenčić, Martina Temunović, Riho Gross, Marin Grgurev, Ivana Maguire,

Abstract The noble crayfish, Astacus astacus, is an indigenous European freshwater species. Its populations show significant declines caused by anthropogenic pressure on its habitats, climate change and ... Our study showed that Croatian populations of A. astacus harbour an important part of species genetic diversity ... predicted substantial reductions of suitable habitats for A. astacus by the 2070; only 13% of its current ... poses a major threat to already endangered A. astacus . The obtained results help in the identification of ...

Tópico(s): Genetic diversity and population structure

2022 - Nature Portfolio | Scientific Reports

Artigo Revisado por pares

Martin Bláha, Jiří Patoka, Bella Japoshvili, Marek Let, Miloš Buřič, Antonín Kouba, Levan Mumladze,

... on the phylogenetic position of the endemic crayfish Astacus colchicus , inhabiting Georgia. Three mitochondrial and one nuclear ... A. colchicus indicating independent species status to A. astacus . Phylogenetic analyses revealed a deep molecular divergence of A. colchicus in comparison to A. astacus (6.5–10.9% in mtDNA and 1. ... spines clearly indicate taxonomic assignment to the genus Astacus ; however, the species is distributed almost in the ... demonstrate apparent differences between A. colchicus and A. astacus . Although this study provides a novel insight into ...

Tópico(s): Parasite Biology and Host Interactions

2020 - Wiley | Integrative Zoology

Artigo Revisado por pares

Hamid Niksirat, Antonín Kouba, Marek Rodina, Pavel Kozák,

... torrentium , signal crayfish Pacifastacus leniusculus , and noble crayfish Astacus astacus . The acrosome is a cup shaped and electron‐ ... zone. The acrosome was significantly longer in A . astacus than in P . leniusculus and the shortest acrosome ... leniusculus and the widest acrosome belongs to A. astacus . The L:W ratio was significantly greater in ... leniusculus and the lowest ratio belongs to A. astacus . Radial arms are visible on each side of ...

Tópico(s): Marine and fisheries research

2013 - Wiley | Journal of Morphology

Artigo Revisado por pares

Ulrich Lundberg,

... a first comprehensive ethogram for the noble crayfish, Astacus astacus . Sixty-six behavioural elements are described, belonging to ... ein erstes umfassendes Ethogramm fur den Europaischen Edelkrebs, Astacus astacus , zusammenzustellen. Es werden 66 Verhaltenselemente aus 12 Funktionskreisen ...

Tópico(s): Marine and fisheries research

2004 - Brill | Crustaceana

Artigo Acesso aberto

Kai Westman, Riitta Savolainen,

... most productive populations of the native noble crayfish, Astacus astacus, causing great losses to once very valuable fisheries ... have studied the interactions of co-existing A. astacus and P. leniusculus in the small lake of ... annual trap catches and population size estimates, A. astacus was clearly dominant up to the end of ... then, P. leniusculus has almost completely replaced A. astacus.

Tópico(s): Marine and fisheries research

2001 - EDP Sciences | Bulletin Français de la Pêche et de la Pisciculture

Artigo Acesso aberto Revisado por pares

Uli B. Seemann, Kai Lorkowski, Matthew James Slater, Friedrich Búchholz, Bela H. Buck,

... recirculating aquaculture systems (RAS) to raise noble crayfish Astacus astacus a valuable and once plentiful food species in ... endangered species. The growth and survival of A. astacus was compared in growth trials in RAS and ... crayfish tissue were also determined. Growth of A. astacus during summer was significantly (p < 0.01, one ... Feed and crayfish analysis indicated that culturing A. astacus in RAS require a diet protein content exceeding ...

Tópico(s): Coral and Marine Ecosystems Studies

2014 - Springer Science+Business Media | Aquaculture International

Artigo Acesso aberto Revisado por pares

Tanja Yvonne Roessler, Andrea Wirtz, Matthew James Slater, Joachim Henjes,

... sustainability of aquaculture. Freshwater crayfish species such as Astacus astacus and Pontastacus leptodactylus are omnivorous feeders and considered ... measured to determine the growth response. Juvenile A. astacus was fed faeces of hybrid striped bass (Morone ... was close to optimal diet composition of A. astacus, and crayfish showed significantly higher carapace growth, weight ... co-cultivation of hybrid striped bass and A. astacus within one system, but cannot recommend co-cultivation ...

Tópico(s): Marine and fisheries research

2020 - Wiley | Aquaculture Research

Artigo Revisado por pares

Jostein Skurdal, Trond Taugbøl, Eirik Fjeld, Dag O. Hessen, Tore Håstein,

... 435 Thelohania contejeani Henneguy parasitizing the noble crayfish, Astacus astacus L., in Norway J. SKURDAL, Corresponding Author J. ... J. (1984) The Biology of the Crayfish (Astaeus astacus). INRA Publications, Versailles . Dehli E. (1981) Porcelain disease ... In Norwegian, English summary.). Mazylis A. (1978) On Astacus astacus with Thelohania contejeani Henneguy. Freshwater Crayfish 4. Papers ...

Tópico(s): Insect symbiosis and bacterial influences

1988 - Wiley | Journal of Fish Diseases

Artigo Revisado por pares

E. Czeczuga‐Semeniuk, Czeczuga,

... revealed in the carapaces of Pacifastacus leniusculus and Astacus astacus and in the muscles of Astacus leptodactylus and Orconectes limosus. En utilisant la chromatographie ... trouve dans les carapaces de Pacifastacus leniusculus et Astacus astacus et dans les muscles de Astacus leptodactylus et Orconectes limosus.

Tópico(s): Crustacean biology and ecology

1999 - Brill | Crustaceana

Artigo Revisado por pares

Michaela Mojžišová, Agata Mrugała, Eva Kozubíková‐Balcarová, Pavel Vlach, Jitka Svobodová, Antonín Kouba, Adam Petrusek,

... originally associated with the host Procambarus clarkii, causing Astacus astacus and Austropotamobius torrentium mass mortalities in Czechia. Moreover, ... Genotype group A was recorded in two As. astacus mortalities, and genotype group E, associated with Faxonius limosus, in two Au. torrentium and three As. astacus mortalities. Microsatellite genotyping also reidentified the unusual genotype SSR-Up in two As. astacus outbreaks, ten years after its first documented occurrence. ...

Tópico(s): Coral and Marine Ecosystems Studies

2020 - Elsevier BV | Journal of Invertebrate Pathology

Artigo Revisado por pares

Japo Jussila, Jenny Makkonen, Anssi Vainikka, Raine Kortet, Hanna Kokko,

Apparently healthy wild noble crayfish (Astacus astacus) sampled from Lake Mikitänjärvi, Kainuu, Finland in 2009 and 2010 were discovered to be PCR-positive for Aphanomyces astaci. Detection prevalence was ... report, based on molecular evidence, of healthy A. astacus carrying A. astaci.

Tópico(s): Invertebrate Immune Response Mechanisms

2011 - Elsevier BV | Aquaculture