Effects of different pharmaceutical residues on embryos of fish species native to Central Europe

Chemosphere ◽  
2021 ◽  
pp. 132915
Author(s):  
Denisa Medkova ◽  
Pavla Lakdawala ◽  
Nikola Hodkovicova ◽  
Jana Blahova ◽  
Martin Faldyna ◽  
...  
Keyword(s):  
Central Europe ◽  
Fish Species ◽  
Pharmaceutical Residues

Comparison of molecular and morphometric analysis in species discrimination of larvae among five cyprinids from the subfamily Leuciscinae: A tool for sustainable conservation of riverine ichthyofauna

Biologia ◽  
2016 ◽  
Vol 71 (10) ◽  
Author(s):  
Lech Kirtiklis ◽  
Katarzyna Palińska-Żarska ◽  
Sławomir Krejszeff ◽  
Krzysztof Kupren ◽  
Daniel Żarski ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Central Europe ◽  
Fish Species ◽  
Morphometric Analysis ◽  
Restriction Endonucleases ◽  
Species Discrimination ◽  
Nursery Grounds ◽  
Recruitment Success ◽  
Pcr Rflp ◽  
Sustainable Conservation

AbstractFish species from the subfamily Leuciscinae are one of the most abundant and ecologically valuable among riverine cyprinids of Central Europe. In order to support their recruitment or properly manage the restocking operations, there is a need to recognize the recruitment success which relies on the necessity of proper species discrimination among the larvae of those species caught on the spawning and/ or nursery grounds. In the present study a comparative analysis of the morphological and molecular (PCR-RFLP technique with two restriction endonucleases

scholarly journals Determinants of dam reservoir fisheries impacted by climate change as observed by managers from the entities authorized to exploit these fisheries in East-Central Europe

2019 ◽  
Vol 27 (4) ◽  
pp. 208-223
Author(s):  
Marek Trella ◽  
Tomasz Czerwiński ◽  
Arkadiusz Wołos
Keyword(s):  
Climate Change ◽  
Central Europe ◽  
Fish Species ◽  
East Central Europe ◽  
East Central ◽  
Dam Reservoirs ◽  
Reservoir Fisheries ◽  
Fish Migrations ◽  
The Impact ◽  
East Central European

Abstract The aim of this paper is to present and discuss the results of a survey of fishers exploiting dam reservoirs to determine the conditions of conducting fisheries associated primarily with climate change. Overall, questionnaires were obtained from 18 enterprises (of which 16 were chapters of the Polish Anglers Association) regarding a total of 30 reservoirs with a combined surface area of 29,666 ha, which is 49% of the total surface are of this type of basin in Poland, the largest country in East-Central Europe. This sample is highly representative of all the fisheries conducted in this basin category in Poland and in other East-Central European regions. The following questions referring to the impact of climate change were defined and analyzed based on the answers obtained from the questionnaires: survival of hatchlings, fry, and adult fish; the spawning success of selected fish species; selected hydrological and biological reservoir parameters, the possibility of using and the effectiveness of fishing gears; the length of the recreational fishing season; the size of recreational and commercial fisheries catches of different fish species. Information regarding the impact of reservoirs on fish migrations was also obtained.

Proximate and fatty acid composition of 13 important freshwater fish species in central Europe

2018 ◽  
Vol 26 (2) ◽  
pp. 695-711 ◽  
Author(s):  
Zuzana Linhartová ◽  
Jakub Krejsa ◽  
Tomáš Zajíc ◽  
Jan Másílko ◽  
Sabine Sampels ◽  
...  
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Freshwater Fish ◽  
Central Europe ◽  
Acid Composition ◽  
Fish Species ◽  
Freshwater Fish Species

Characterization and evolution of spearfishing in Madeira archipelago, Eastern Atlantic

2020 ◽  
Vol 33 ◽  
pp. 15
Author(s):  
Roi Martínez-Escauriaza ◽  
Claudio Vieira ◽  
Lídia Gouveia ◽  
Nuno Gouveia ◽  
Margarida Hermida
Keyword(s):  
Fish Species ◽  
Young Men ◽  
Coastal Areas ◽  
Teleost Fishes ◽  
The North ◽  
Southeast Coast ◽  
Madeira Archipelago ◽  
First Time

Data obtained from licenses of spearfishers and surveys conducted in 2004 and 2017 allowed for the analysis, for the first time, of the practice of spearfishing in the Madeira archipelago. Only a small percentage of the population practices spearfishing, mostly local young men. Most of them practice the activity with a partner throughout most of the year and along most of the island's coastal areas, although preferentially along the North and Southeast coast. Results show how, in recent years, despite the population of spearfishers decreasing, the abundance in the annual catch potentially increased, probably due to the higher investment of time in this activity. It has been observed that many fishers complement their catches with manual collecting of invertebrates. Overall, 40 teleost fishes and also 4 crustaceans and 8 molluscs were identified. The most frequently captured fish species were parrotfish and white seabream, while limpets were the most collected invertebrates in both selected periods.

Effects of Drying Methods on the Biochemical Composition and Organoleptic Properties of Two Freshwater Fish Species (Mormyrus rume and Labeo coubie) of Cross River Obubra, Nigeria

2019 ◽  
Vol 2 (1) ◽  
Keyword(s):  
Moisture Content ◽  
Fish Species ◽  
Nutrition Status ◽  
Drying Methods ◽  
Organoleptic Properties ◽  
Nutrient Quality ◽  
Oven Drying ◽  
Fish Samples ◽  
Fish And Fishery Products ◽  
Mormyrus Rume

Consumers all over the world are increasingly becoming aware of the health and nutrition status of fish and fishery products. There have develop some preference for fish species and even their processing methods. This study aims to investigate the effects of two drying methods (smoking and oven drying) on the biochemical components and organoleptic properties of two less preferred food fishes abundant in the study area. The fish samples Mormyrus rume and Labeo coubie were purchased from fresh landings of fishermen at Ahaha beach. The biochemical assay of the moisture, protein, fat, carbohydrate, ash, calcium (Ca), magnesium (Mg), phosphorus (P), iron (Fe), sodium (Na) and potassium (K) were conducted in the labouratory using standard methods. The proximate composition of raw M. rume was determined as moisture 70.38%, protein 17.43%, carbohydrate 1.13%, fat 5.93% and ash 2.77% while oven dried were 18.78, 63.85, 3.37, 8.73 and 7.58% respectively. All the proximate parameters and gross energy level investigated were higher (p < 0.05) in M. rume except the moisture content of dried samples of L. coubie. The mineral content were in the order Ca < Mg < Fe < Na < P and < K in both species and were higher in M. rume except Na. The drying methods showed increase in the proximate and mineral compositions in the order raw < smoking and < oven drying except moisture content that decreased respectively is both species. Organoleptic properties revealed that dried samples (smoked and oven) were not significantly different (p < 0.05) in taste, flavour, texture and overall acceptance, however while oven dried had better colour (4.33), smoked dried taste (4.63) better. The drying methods shows concentration of the required nutrients in human diets and were also found to be most palatable by the panellist. To improve fish nutrient quality smoke and oven drying should be encourage.

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