Results 81 to 90 of about 6,148 (217)

COMPARISON AMONG PRE-GELATINIZED STARCHES OF DIFFERENT BOTANICAL ORIGINS USED IN NOBLE CRAYFISH ASTACUS ASTACUS DIETS

open access: yesKnowledge and Management of Aquatic Ecosystems, 2006
The objective of the present experiment was to compare the biological value and the binding functionality of four pre-gelatinized starches (wheat, diet 1; waxy maize, diet 2; maize, diet 3 and potato, diet 4) used in crayfish diets.
D’AGARO E., MECATTI M.
doaj   +1 more source

The assessment of the habitat and water quality requirements of the stone crayfish (Austropotamobius torrentium) and noble crayfish (Astacus astacus) species in the rivers from the Anina Mountains (SW Romania)

open access: yesKnowledge and Management of Aquatic Ecosystems, 2011
The species Austropotamobius torrentium and Astacus astacus are two species known in the EU directives to require deeper understanding of their autecologic requirements before any sustainable conservation effort could be successfully applied.
Pârvulescu L.   +2 more
doaj   +1 more source

On the distribution and habits of the large fresh-water crayfish (Astacus sp.) of the northern rivers of Tasmania [PDF]

open access: yes, 1870
I trust that the members of this Society may be interested in a few remarks, which I have to make upon the distribution and habits of the large fresh-water crayfish which is so common upon the north side of the island.
Gould, Charles
core  

Der Edelkrebs (Astacus astacus) im Kreis Höxter [PDF]

open access: yes, 2013
Bis Ende des 19. Jahrhunderts waren in den Gewässern Deutschlands drei Flusskrebsarten beheimatet. Während der Edelkrebs (Astacus astacus; Abb. 1) ursprünglich in ganz Deutschland anzutreffen war, beschränkten sich die Vorkommen des Dohlenkrebses ...
Beinlich, Burkhard
core  

Fine structure of the haemocytes of the Indian white shrimp Fenneropenaeus indicus (H. Milne Edwards, 1837) [PDF]

open access: yes, 2004
Three types of circulating haemocytes have been identified in the haemolymph of the Indian white shrimp, Fenneropenaeus indicus, by electron microscopy.
Laxmilatha, P, Laxminarayana, A
core   +1 more source

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

ESTIMATION OF NOBLE CRAYFISH (ASTACUS ASTACUS L.) POPULATION SIZE IN THE VELIKA PAKLENICA STREAM (CROATIA)

open access: yesKnowledge and Management of Aquatic Ecosystems, 2004
Astacus astacus is one of four native European crayfish species living in Croatian freshwaters. It is naturally distributed in rivers belonging to the Black Sea Basin.
MAGUIRE I., HUDINA S., ERBEN R.
doaj   +1 more source

Different aspects of reproduction strategies in crayfish: A review

open access: yesKnowledge and Management of Aquatic Ecosystems, 2016
Study of the reproductive strategy of crayfish species is of great importance in the current astacological world. Crayfish are among the largest freshwater invertebrates, and as keystone species, they are able to regulate the ...
Yazicioglu B., Reynolds J., Kozák P.
doaj   +1 more source

Tasmanian Parastacidae. [PDF]

open access: yes, 1938
Freshwater and land crayfishes of the family Parastacidae are found in most countries of the Southern Hemisphere. They occur abundantly throughout Tasmania, eleven species, contained in four genera, being known.
Clark, Ellen
core   +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

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