Results 71 to 80 of about 7,427 (216)
The distribution of native and introduced species of crayfish in Austria [PDF]
, 1999 This account concentrates on the six species of crayfish found in Austria, and the current state of knowledge on their distribution and laws affecting conservation.
Pockl, Manfred
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Diversity and Distributions, Volume 32, Issue 5, May 2026.ABSTRACT Aim Species Distribution Models (SDMs) are widely used in conservation planning, invasive species management and global change assessments. Their reliability depends on both presence and absence data, yet biodiversity databases are dominated by presence records, while true absences are rarely collected and geographically restricted.
Kristian Miok +4 more
wiley +1 more source
Aquaculture Reports, 2020 This study was conducted to evaluate the effect of dietary protein levels on growth performance, muscle composition, digestive enzymes activities, hemolymph biochemical indices and ovary development of pre-adult red swamp crayfish Procambarus clarkii ...
Xing Lu +9 more
doaj +1 more source
On the evidence for evidence‐based conservation
Ecological Solutions and Evidence, Volume 7, Issue 2, April/June 2026.We explore the evidence base underlying evidence‐based conservation (EBC). Drawing on varied examples, we suggest that EBC is often (but not always) a justified investment to improve conservation outcomes. We offer suggestions for how to generate further evidence on EBC, framed around a theory of change for how EBC improves conservation outcomes ...
Nigel G. Taylor +3 more
wiley +1 more source
Aquaculture ReportsThe addition of Eucommia ulmoides Oliv. leaf extract (ELE) enhances growth, immunity and antioxidant capacity in crustaceans, which has not been studied on the red swamp crayfish (Procambarus clarkii). Hence, this study aimed to investigate the effect of
Dan Yang +8 more
doaj +1 more source
Some unusual natural areas in Illinois [PDF]
, 1977 Bibliography: p.
Evers, Robert August, Page, Lawrence M.
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Dietary breadth and trophic position of introduced European catfish Silurus glanis in the River Tarn (Garonne River basin), southwest France [PDF]
, 2010 Although being a widely introduced and successfully established species, the European catfish Silurus glanis L. (the world’s third largest freshwater fish) remains poorly studied in its introduced areas.
Crivelli, Alain Jean +5 more
core +4 more sources
Aquaculture, Fish and Fisheries, Volume 6, Issue 2, April 2026.ABSTRACT The piscicide antimycin has been used as an effective fish toxicant to eradicate nuisance fishes because it is not as detectable by fish as other chemical piscicides. We evaluated the effects of antimycin and its detoxicant, potassium permanganate, on periphyton and benthic macroinvertebrates during a brook trout (Salvelinus fontinalis ...
Aden J. Blackburn +3 more
wiley +1 more source
Variation of the stable isotope niches of native amphibians in ponds invaded by the red swamp crayfish [PDF]
NeoBiotaRelationships between native and invasive species can modify trophic interactions in food webs and the diet of native species, leading to substantial changes in their trophic niches.
Nadège Belouard +3 more
doaj +3 more sources
The future of the indigenous freshwater crayfish Austropotamobius italicus in Basque Country streams: Is it possible to survive being an inconvenient species? [PDF]
, 2009 The white-clawed freshwater crayfish Austropotamobius italicus is listed as “vulnerable” in the Spanish Red List of threatened species, but local legislation varies among Spanish regions.
A. Antón, A. Rallo, L. García-Arberas
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