Results 21 to 30 of about 548 (123)

HOW TO FIND A STONE CRAYFISH AUSTROPOTAMOBIUS TORRENTIUM (SCHRANK, 1803): A BIOGEOGRAPHIC STUDY IN EUROPE

open access: yesKnowledge and Management of Aquatic Ecosystems, 2005
The stone crayfish Austropotamobius torrentium (Schrank, 1803) is widely distributed in Southeastern and Central Europe. However, this information has not been verified until recently because of: • ignorance about biogeographic notion and hydrography
MACHINO Y., FÜREDER L.
doaj   +1 more source

Morphological variability and sexual dimorphism of stone crayfish Austropotamobius torrentium from the Marjanovića Stream (Bosnia and Herzegovina) [PDF]

open access: yesKragujevac Journal of Science, 2020
This paper presents the first information about the morphological variability and sexual dimorphism of the stone crayfish Austropotamobius torrentium in the area of Marjanovića Stream in Čelinac (Republic of Srpska, Bosnia and Herzegovina).
Roljić Rajko   +2 more
doaj  

Size structure, maturity size, growth and condition index of stone crayfish (Austropotamobius torrentium) in North-West Croatia

open access: yesKnowledge and Management of Aquatic Ecosystems, 2011
Austropotamobius torrentium (Schrank, 1803), the smallest species of freshwater crayfish from the family Astacidae, is considered a vulnerable species, protected by international laws.
Maguire I., Klobučar G.
doaj   +1 more source

THE GENUS AUSTROPOTAMOBIUS IN THE AUSSERFERN REGION (TYROL, AUSTRIA) WITH AN OVERLAP IN THE DISTRIBUTION OF A. TORRENTIUM AND A. PALLIPES POPULATIONS

open access: yesKnowledge and Management of Aquatic Ecosystems, 2006
Native populations of the stone crayfish Austropotamobius torrentium in Tyrol (Austria) are restricted to the region of Außerfern, where the lake “Haldensee” and the river “Archbach” are known to hold intact populations.
SINT D., DALLA VIA J., FÜREDER L.
doaj   +1 more source

Habitat use of the crayfish Austropotamobius torrentium in small brooks and in Lake Constance, Southern Germany

open access: yesKnowledge and Management of Aquatic Ecosystems, 2000
Habitat use of Austropotamobius torrentium was studied in two small brook systems winding through woods and open grassland and in Lake Constance at the outflow of the river Rhine.
RENZ M., BREITHAUPT T.
doaj   +1 more source

Tropicalization of the Temperate Zone: Spatiotemporal Variability of Winter Warming and Declining Freeze Days Across the United States

open access: yesInternational Journal of Climatology, EarlyView.
Unique characteristics of winter daily minimum (Tmin) and maximum (Tmax) temperatures and freeze days across the conterminous United States from 1952 to 2024 are examined. Results show spatial heterogeneity in Tmin/Tmax warming rates across the tropical‐temperate transition zone in the southeastern United States, and that the highest temperature on the
Vincent M. Brown   +4 more
wiley   +1 more source

A Multi‐Method Approach to Assessing Barrier Effectiveness in Preventing the Spread of Invasive Signal Crayfish (Pacifastacus leniusculus)

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Relieving barriers and increasing free flowing rivers is a global imperative to restore habitat connectivity for migratory fish stocks. While reducing river fragmentation will certainly improve biodiversity, the spread of non‐native species throughout a river system may be facilitated as an inadvertent outcome.
Matthew Harwood   +5 more
wiley   +1 more source

The occurrence of branchiobdellidans on stone crayfish (Austropotamobius torrentium) in the Czech Republic

open access: yesKnowledge and Management of Aquatic Ecosystems, 2017
The stone crayfish Austropotamobius torrentium (Schrank, 1803) is one of only two native crayfish species in the Czech Republic. Epibiotic branchiobdellidans present on this crayfish species have not been studied before in the Czech Republic.
Vlach Pavel   +3 more
doaj   +1 more source

Genetic and Ecological Management of Pacific Salmon Fisheries for the 21st Century

open access: yesFisheries Management and Ecology, EarlyView.
ABSTRACT Based on ecological adaptation theory, tremendous effort is being spent on measures that are eliminating salmon hatcheries and fishing opportunities with the intention of protecting wild runs deemed to be of particular genetic importance to the survival of the species.
Randall E. Brummett   +2 more
wiley   +1 more source

Stone crayfish in the Czech Republic: how does its population density depend on basic chemical and physical properties of water?

open access: yesKnowledge and Management of Aquatic Ecosystems, 2013
The stone crayfish (Austropotamobius torrentium Schrank) is one of the two native crayfish species in the Czech Republic. The populations as well as physical and chemical parameters of water (pH, conductivity, dissolved oxygen ...
Vlach P., Svobodová J., Fischer D.
doaj   +1 more source

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