Direct observations of vertebrate killing and consumption by the endangered Pyrenean desman (Galemys pyrenaicus)

Mammalia ◽  
2019 ◽  
Vol 83 (5) ◽  
pp. 479-482
Author(s):  
Lorenzo Quaglietta ◽  
Pedro Beja
Keyword(s):  
Salmo Trutta ◽  
Trophic Niche ◽  
Mammal Species ◽  
Direct Observations ◽  
Live Fish ◽  
Salmo Trutta Fario ◽  
Galemys Pyrenaicus ◽  
Anecdotal Information

Abstract The Pyrenean desman (Galemys pyrenaicus) is a globally endangered semiaquatic mammal species restricted to Southwest Europe. It is thought to mostly predate on aquatic prey, particularly macroinvertebrates; yet anecdotal information and recent genetic-based findings suggest higher flexibility in its trophic niche. Here, we report on direct observations of wild-caught Pyrenean desmans attacking, killing and consuming live fish (trout – Salmo trutta fario) and amphibians (Iberian frog – Rana iberica) in semi-captivity conditions providing unquestionable evidence (photos and videos) of vertebrate attack, killing, handling and consumption by the species. This illustrates the species’ ability to kill and eat vertebrates, corroborating recent evidence on its trophic flexibility.

scholarly journals Survie in vitro et post mortem des gametes de truite fario (Salmo trutta fario)

1981 ◽  
Vol 59 (1) ◽  
pp. 29-33 ◽  
Author(s):  
R. Billard ◽  
Jacqueline Marcel ◽  
D. Matei
Keyword(s):  
Salmo Trutta ◽  
The Body ◽  
Post Mortem ◽  
Significant Drop ◽  
Live Fish ◽  
Detectable Difference ◽  
Salmo Trutta Fario

Post mortem continuation of fertility of the gametes in the trout Salmo trutta fario has been investigated in order to gather more information on the possibility of using ova and sperm from genitors killed accidentally. The percentage of eggs fertilized at 200 day-degrees was used as a measure of the fertility of the gametes left post mortem in the genital tracts of animals kept at 4 °C after killing, in air or water; the measures were compared with those of gametes kept in vitro, at 4 °C also. Gametes taken periodically from live fish during the experiment were used as controls.Gametes kept in the body of killed genitors survive only a few hours and show a significant drop after 12 h and 6–8 h for sperm and live respectively, with no detectable difference between fish kept in water or in air. Gametes kept in vitro maintain their fertility at 51–90% after 72 h (control = 96%) and at 80% after 14 days (control = 97%) for ova and sperm respectively. The fertilizing capacity of control sperm taken from live fish did not vary throughout the experiment.[Journal translation]

Evaluation of brown trout (Salmo trutta fario) fillets’ shelf life: Fed with a humic supplemented diet

2021 ◽  
Vol 29 ◽  
pp. 100675
Author(s):  
Muhammed Atamanalp ◽  
Arzu Ucar ◽  
Esat Mahmut Kocaman ◽  
Gonca Alak
Keyword(s):  
Shelf Life ◽  
Brown Trout ◽  
Salmo Trutta ◽  
Brown Trout Salmo Trutta ◽  
Salmo Trutta Fario

scholarly journals Patterns of spontaneous motility in trout embryo (Salmo trutta fario)

1978 ◽  
Vol 45 (1) ◽  
pp. 73-78 ◽  
Author(s):  
Laura Alfei ◽  
Maria Cristina Hernandez
Keyword(s):  
Salmo Trutta ◽  
Spontaneous Motility ◽  
Salmo Trutta Fario

scholarly journals Mammal richness and diversity in Serra do Facão region, Southeastern Goiás state, central Brazil

2015 ◽  
Vol 15 (4) ◽  
Author(s):  
Leonardo de Paula Gomes ◽  
Clarisse Rezende Rocha ◽  
Reuber Albuquerque Brandão ◽  
Jader Marinho-Filho
Keyword(s):  
Species Diversity ◽  
Camera Traps ◽  
Mammalian Fauna ◽  
Mammal Species ◽  
Central Brazil ◽  
Direct Observations ◽  
Mammal Fauna ◽  
Before And After ◽  
Short Time ◽  
Reservoir Filling

At least 251 mammal species are recorded for the Brazilan cerrado, which, therefore, is the third richest Brazilian biome. Most mammal surveys in Brazilian cerrado result from studies performed opportunistically and in short time periods. The aims of the present study were (1) provide a checklist for the mammalian fauna based on a five-year sampling in Serra do Facão region, Southeastern Goiás state; (2) compare small non-flying mammals diversity in open and forest areas and (3) compare species diversity before and after the flood caused by a hydroelectric reservoir filling. The data was gathered in 19 sampling periods, from May 2008 to September 2013. We sampled open and forest habitats and captured non-flying small mammals with Sherman and Tomahawk live traps and pitfalls; bats were sampled with mist-nets; large mammals were recorded with camera traps, and by direct observations and track surveys in field. We found 20 species of small non-flying mammals, 10 species of bats and 33 species of larger mammals. Species diversity was greater for forest than open habitats, and was also greater before than after the complete reservoir filling. About 10% of the recorded species are included in the Brazilian official list of threatened species. The total richness represents 25% of all cerrado mammal fauna, highlighting the importance of this area for regional mammal fauna conservation.

Environmental concentration of methamphetamine induces pathological changes in brown trout (Salmo trutta fario)

Chemosphere ◽  
2020 ◽  
Vol 254 ◽  
pp. 126882 ◽  
Author(s):  
Maria Eugenia Sancho Santos ◽  
Kateřina Grabicová ◽  
Christoph Steinbach ◽  
Heike Schmidt-Posthaus ◽  
Eva Šálková ◽  
...  
Keyword(s):  
Brown Trout ◽  
Salmo Trutta ◽  
Pathological Changes ◽  
Environmental Concentration ◽  
Brown Trout Salmo Trutta ◽  
Salmo Trutta Fario
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