Results 91 to 100 of about 7,514 (259)

The use of formaldehyde for the disinfection of maternally incubated eggs of noble crayfish (Astacus astacus)

open access: yesInternational Aquatic Research, 2016
The high mortality of maternally incubated eggs represents a serious problem that prevents the development of noble crayfish (Astacus astacus) farming in Italy.
Benedetto Sicuro
doaj   +1 more source

Evaluation of different dietary protein and energy levels on growth performance and body composition of narrow clawed crayfish (Astacus leptodactylus) [PDF]

open access: yes, 2012
Nine practical diets containing increasing percentages of crude protein (CP) and energy (30%, 35%, 40% and 300kcal/100g, 370kcal/100g and 450kcal/100g) were fed to narrow clawed crayfish (mean individual weight=17±2.3 g) during an 8 week feeding trial ...
Ghiasvand, Z.   +4 more
core  

The first large-scale genetic analysis of the vulnerable noble crayfish Astacus astacus reveals low haplotype diversity in central European populations

open access: yesKnowledge and Management of Aquatic Ecosystems, 2011
Major global changes (e.g., human impact or climatic cycles) have a severe impact on the distribution and diversity of species such as the vulnerable European noble crayfish Astacus astacus.
Schrimpf A.   +4 more
doaj   +1 more source

Startfôr til juvenil edelkreps (Astacus astacus)

open access: yes, 2010
Kasa Krepseoppdrett på Hvaler har valgt å satse på en halvintensiv modell for produksjon av edelkreps. Ved bruk av halvintensiv produksjonsmodell kreves det et egnet fôr til juvenile kreps. Det som har vært vanlig å bruke, er levendefôr ved bruk av Artemia i kombinasjon med vegetabilske næringsstoffer som modnet laug, grodd hvete og potet.
Siikavuopio, Sten Ivar   +2 more
openaire   +1 more source

Growth and population dynamics of crayfish Paranephrops planifrons in streams within native forest and pastoral land uses [PDF]

open access: yes, 2002
Population dynamics of crayfish (Paranephrops planifrons White) in streams draining native forest and pastoral catchments, Waikato, New Zealand, were investigated from September 1996 to July 1998.
Collier, Kevin J.   +2 more
core   +1 more source

ASSESSMENT OF DNA VARIATIONS OF THE NOBLE CRAYFISH (ASTACUS ASTACUS L.) IN GERMANY AND POLAND USING INTER-SIMPLE SEQUENCE REPEATS (ISSRS)

open access: yesKnowledge and Management of Aquatic Ecosystems, 2004
Conservation of the endangered noble crayfish (Astacus astacus) requires preservation of existing populations and reintroduction into suitable habitats, as currently underway in several regional projects in Germany and Poland.
SCHULZ H. K., ŠMIETANA P., SCHULZ R.
doaj   +1 more source

1871年から2002年末までに発行された郵便切手に描かれた甲殻類 : チェックリスト決定版 [PDF]

open access: yes, 2014
On the occasion of a donation of postage stamps collected by the author to the Museum of Fishery Sciences, Tokyo University of Marine Science and Technology, a checklist of all postage stamps depicting crustaceans from 1871 through 2002 has been ...
Makoto Omori, 大森 信
core   +1 more source

Microcystins in European Noble Crayfish Astacus astacus in Lake Steinsfjorden, a Planktothrix-Dominated Lake. [PDF]

open access: yesToxins (Basel), 2020
Samdal IA   +7 more
europepmc   +1 more source

High-throughput discrimination of bacteria isolated from Astacus astacus and A. leptodactylus

open access: yesKnowledge and Management of Aquatic Ecosystems, 2014
Bacterial diseases and pathogens of crayfish are common, widespread, and occasionally causing serious mortalities. In order to take rapid measures for correct treatment of crayfish diseases, the turnover time and accuracy in bacterial
Topić Popović N.   +8 more
doaj   +1 more source

The distribution of branchiobdellidan worms (Annelida: Clitellata) on the noble crayfish, Astacus astacus, in the Transcarpathian region, Ukraine

open access: yesВісник Харківського Національного Університету Імені В.Н. Каразіна: Серія Біологія
This study explores the distribution, abundance, and diversity of branchiobdellidans on freshwater crayfish in the Zakarpattia (Transcarpathian) region of Ukraine, focusing on populations in the Tereblya River and Lake Synevir.
M. Shrestkha, S. Utevsky
doaj   +1 more source

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