scholarly journals New Findings of White Clawed Crayfi sh, Austropotamobius pallipes (Decapoda, Astacidae), and Peculiarities of its Spatial Distribution in Neretvica (Bosnia and Herzegovina)

Zoodiversity ◽  
2021 ◽  
Vol 55 (4) ◽  
pp. 285-294
Author(s):  
S. Afanasyev ◽  
O. Lietytska ◽  
O. Golub ◽  
O. Iarochevitch ◽  
K. Mudra ◽  
...  
Keyword(s):  
Bosnia And Herzegovina ◽  
Size Structure ◽  
River Basins ◽  
Coarse Particulate Organic Matter ◽  
Austropotamobius Pallipes ◽  
New Findings ◽  
Balanced Structure ◽  
Crayfish Population ◽  
Fallen Leaves ◽  
Sand Bottom

At the territory of Bosnia and Herzegovina, Austropotamobius pallipes (Lereboullet, 1858) is present mainly in the Neretva basin, partly in the Una and Tsetina river basins (Trožić-Borovac et al., 2012). This species was registered at elevations from 180 to 1024 m a.s.l., but most habitats are located at elevations from 300 to 600 m a.s.l. Based on indirect data, one can state that more than 2/3 of the crayfish population in the Neretva basin is concentrated in the Neretvica basin. Our studies showed that the crayfish are very irregularly distributed in the Neretvica basin. The crayfish are almost absent at well-flushed habitats without CPOM (deposits of coarse particulate organic matter, e. g., fallen leaves), as well as at habitats with monotonous boulders or gravel-sand bottom. The study of the size structure of the crayfish population showed the presence of juvenile crayfish with a size of less than 5 cm in the Neretvica river course. The most balanced structure of the crayfish population represented by juvenile as well as adult species is observed in Gorovnik.

Crayfish arts: an evaluation into the efficacy of artificial refuge traps for monitoring lotic white-clawed crayfish Austropotamobius pallipes (Lereboullet, 1858) (Decapoda, Astacidae) populations

Crustaceana ◽  
2018 ◽  
Vol 91 (3) ◽  
pp. 297-309 ◽  
Author(s):  
James O’Connor ◽  
Sakinah Brennan ◽  
Jan-Robert Baars
Keyword(s):  
Population Studies ◽  
Sampling Effort ◽  
Irish Population ◽  
Effective Technique ◽  
Austropotamobius Pallipes ◽  
Population Structures ◽  
Capture Method ◽  
Crayfish Population ◽  
Capture Techniques ◽  
Crayfish Species

White-clawed crayfishAustropotamobius pallipes(Lereboullet, 1858) are one of five crayfish species indigenous to Europe, and the only crayfish species to occur in Ireland. With no known invasive species posing a risk, the Irish population is of considerable conservation importance, particularly in a European context. While there are a number of capture techniques described for crayfish population studies, many have a number of limitations associated with them. There is a need therefore to evaluate new and emerging techniques, so as to assess their efficacy for monitoringA. pallipespopulations. Artificial refuge traps (ARTs), an alternative passive capture method, were evaluated against three other widely used capture techniques during the summer months of 2015. Results indicate ARTs to be an effective technique for sampling crayfish, and suggest that, in combination with other capture methods, ARTs could depict accurate population structures, and reduce some of the sampling effort and bias associated with crayfish monitoring.

scholarly journals NEW FINDINGS OF THE GREEK FROG, RANA GRAECA BOULENGER, 1891 (ANURA: RANIDAE) IN THE NORTH-WESTERN BOSNIA AND HERZEGOVINA

2015 ◽  
Vol 2 (2) ◽  
pp. 74-77
Author(s):  
Goran Šukalo ◽  
Dejan Dmitrović ◽  
Slaven Filipović ◽  
Miloš Kovačević ◽  
Sonja Đorđević ◽  
...  
Keyword(s):  
Bosnia And Herzegovina ◽  
The North ◽  
New Findings ◽  
North Western

In this paper new findings of the Greek Frog, Rana graeca Boulenger, 1891 (Anura: Ranidae) from the north-western part of Bosnia and Herzegovina are given.

Environmental determinants of contrasting caddisfly (Insecta, Trichoptera) biodiversity in the Neretva and Bosna river basins (Bosnia and Herzegovina) under temperate and mediterranean climates

2015 ◽  
Vol 100 (2) ◽  
pp. 79-95 ◽  
Author(s):  
Svjetlana Stanić-Koštroman ◽  
Ana Previšić ◽  
Adriana Planinić ◽  
Mladen Kučinić ◽  
Dragan Škobić ◽  
...  
Keyword(s):  
Bosnia And Herzegovina ◽  
River Basins ◽  
Environmental Determinants

scholarly journals Detection and Confirmation of Freshwater Blenny Salaria fluviatilis (Actinopterygii: Blenniidae) in Bosnia and Herzegovina

2021 ◽  
Vol 79 (2) ◽  
pp. 75-82
Author(s):  
Pero Tutman ◽  
Branko Glamuzina
Keyword(s):  
Freshwater Fish ◽  
Bosnia And Herzegovina ◽  
Fish Species ◽  
Adriatic Sea ◽  
River Basins ◽  
European Countries ◽  
Freshwater Fish Species ◽  
Fish Resources ◽  
Distributional Range ◽  
Mediterranean And Black Seas

Abstract Distributional range of freshwater blenny Salaria fluviatilis extends to the tributaries along the Mediterranean and Black seas. It is considered endangered in several Mediterranean European countries. Although previously mentioned in the lists of freshwater fish species, its presence has never before been confirmed in Bosnia and Herzegovina. Consequently, this has led to doubts about its distribution there. A sample specimen of freshwater blenny was obtained from the lower Neretva River (Adriatic Sea watershed) in Bosnia and Herzegovina in May 2020, representing the first reliable record of this species. Considering that this record confirms older reports, however, it seems that earlier surveys have failed to locate the fish. Knowledge of the composition of fish species in river basins and updating their list are among the important requirements for managing the biodiversity of each country, as well as water and fish resources.

scholarly journals Occurrence of alien spirlin (Alburnoidessp.) in the Neretva river basin

2019 ◽  
pp. 15 ◽  
Author(s):  
Jasna Vukić ◽  
Kristýna Eliášová ◽  
Dario Marić ◽  
Radek Šanda
Keyword(s):  
River Basin ◽  
Bosnia And Herzegovina ◽  
Fish Species ◽  
Native Species ◽  
Public Awareness ◽  
River Basins ◽  
Freshwater Ecosystems ◽  
Danube River ◽  
Alien Fish ◽  
Alien Fish Species

Northern Mediterranean region is characterised by an exceptional richness of the freshwater ichthyofauna. Many fish species of this region are endemic to a single or a few river basins. This is also the case of the Neretva river basin (Adriatic Sea slope), where 17 out of 34 native species are endemic solely to this river basin. However, these unique Mediterranean freshwater ecosystems are fragile and are susceptible to human-induced changes, including introduction of alien fish species. We report here a finding of the 32ndalien fish species in the Neretva river basin, spirlinAlburnoidessp., which was found at two localities in Bosnia and Herzegovina. The spirlin species was identified by molecular means as so far unnamed species with the native range in the Sava river basin (Danube river basin, Black Sea slope). Based on the comparison ofcytochrome bsequences, the introduced population originated most probably from nearby rivers of the Danube basin in Bosnia and Herzegovina (Vrbas and Bosna river basins). Such a high number of alien fish species reported in a single river basin is alarming and pointing to a necessity of raising public awareness, especially among local fishermen.

Preliminary Survey On the Distribution of the Freshwater Crayfish Austropotamobius Pallipes in Liguria, N.W. Italy

Crustaceana ◽  
1993 ◽  
Vol 65 (2) ◽  
pp. 218-221 ◽  
Author(s):  
P. Cresta ◽  
G. Doria ◽  
S. Salvidio
Keyword(s):  
River Basins ◽  
Freshwater Crayfish ◽  
Preliminary Survey ◽  
Austropotamobius Pallipes ◽  
The Status

AbstractA survey on the distribution of the freshwater crayfish Austropotamobius pallipes in Liguria has been undertaken and the results are reported on a 5 km UTM grid. In Liguria, crayfish populations are abundant in several river basins and in different climatic areas. The status and the main hazards of crayfish stocks in the region are discussed.

Structure and composition of metal particles in Pt-Sn/Al2O3 bimetallic catalysts

1990 ◽  
Vol 48 (4) ◽  
pp. 278-279
Author(s):  
A. Sachdev ◽  
J. Schwank
Keyword(s):  
Bimetallic Catalysts ◽  
Bimetallic Catalyst ◽  
Size Structure ◽  
High Surface ◽  
High Surface Area ◽  
Metal Particles ◽  
Alloy Formation ◽  
Particle Size Range ◽  
Oxide Supports ◽  
Petroleum Fractions

Platinum - tin bimetallic catalysts have been primarily utilized in the chemical industry in the catalytic reforming of petroleum fractions. In this process the naphtha feedstock is converted to hydrocarbons with higher octane numbers and high anti-knock qualities. Most of these catalysts contain small metal particles or crystallites supported on high surface area insulating oxide supports. The determination of the structure and composition of these particles is crucial to the understanding of the catalytic behavior. In a bimetallic catalyst it is important to know how the two metals are distributed within the particle size range and in what way the addition of a second metal affects the size, structure and composition of the metal particles. An added complication in the Pt-Sn system is the possibility of alloy formation between the two elements for all atomic ratios.

Further studies on the ultrastructure of the cochlea

1990 ◽  
Vol 48 (3) ◽  
pp. 440-441
Author(s):  
Zhixian Wang ◽  
Pinjin Zhu ◽  
Jianhe Sun ◽  
Xuezheng Song
Keyword(s):  
Hair Cells ◽  
Military Medicine ◽  
Outer Hair Cells ◽  
Apical Surface ◽  
Epithelial Surface ◽  
Hearing Research ◽  
New Findings ◽  
Fine Structures ◽  
Temporal Bones ◽  
Accurate Observation

Hearing research is important not only for clinical, professional and military medicine, but also for toxicology, gerontology and genetics. Ultrastructure of the cochlea attracts much attention of electron microscopists, (1―3) but the research lags far behind that of the other parts of the organnism. On the basis of careful microdissection, technical improvment and accurate observation, we have got some new findings which have not been reported in the literature.We collected four cochleas from human corpses. Temporal bones dissected 1 h after death and cochleas perfused with fixatives 4 h after death were good enough in terms of preservation of fine structures. SEM:The apical surface of OHCs (Outer hair cells) and DTs (Deiters cells) is narrower than that of IPs (Inner pillar cells). The mosaic configuration of the reticular membrane is not typical. The stereocilia of IHCs (Inner hair cells) are not uniform and some kinocilia could be seen on the OHCs in adults. The epithelial surface of RM (Reissner’s membrane) is not smooth and no mesh could be seen on the mesothelial surface of RM. TEM.

Insights into the biochemical and functional characterization of sortase E transpeptidase of Corynebacterium glutamicum

2019 ◽  
Vol 476 (24) ◽  
pp. 3835-3847 ◽  
Author(s):  
Aliyath Susmitha ◽  
Kesavan Madhavan Nampoothiri ◽  
Harsha Bajaj
Keyword(s):  
Protein Engineering ◽  
Cell Attachment ◽  
Functional Characterization ◽  
Protein Structures ◽  
Structural Similarity ◽  
Surface Proteins ◽  
Sortase A ◽  
Peptide Cleavage ◽  
New Findings

Most Gram-positive bacteria contain a membrane-bound transpeptidase known as sortase which covalently incorporates the surface proteins on to the cell wall. The sortase-displayed protein structures are involved in cell attachment, nutrient uptake and aerial hyphae formation. Among the six classes of sortase (A–F), sortase A of S. aureus is the well-characterized housekeeping enzyme considered as an ideal drug target and a valuable biochemical reagent for protein engineering. Similar to SrtA, class E sortase in GC rich bacteria plays a housekeeping role which is not studied extensively. However, C. glutamicum ATCC 13032, an industrially important organism known for amino acid production, carries a single putative sortase (NCgl2838) gene but neither in vitro peptide cleavage activity nor biochemical characterizations have been investigated. Here, we identified that the gene is having a sortase activity and analyzed its structural similarity with Cd-SrtF. The purified enzyme showed a greater affinity toward LAXTG substrate with a calculated KM of 12 ± 1 µM, one of the highest affinities reported for this class of enzyme. Moreover, site-directed mutation studies were carried to ascertain the structure functional relationship of Cg-SrtE and all these are new findings which will enable us to perceive exciting protein engineering applications with this class of enzyme from a non-pathogenic microbe.

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