scholarly journals Helminth fauna of spawning pacific herring Clupea pallasii from the Taui population (Tauiskaya Guba Bay, Okhotsk Sea)

2021 ◽  
Vol 201 (3) ◽  
pp. 662-668
Author(s):  
V. V. Pospekhov

Parasites of spawning pacific herring (Clupea pallasii Valenciennes in Cuvier et Valenciennes, 1947) from the Taui population are explored on the samples caught on two spawning grounds located in the Ola lagoon and Amakhton Bay (Tauiskaya Guba Bay, Okhotsk Sea), and 17 species of helminthes are found, including 6 trematodes, 5 cestodes, 4 nematodes, and 2 acanthocephalans. Some differences in species composition of helminthes and their infestation were found between these estuarine and marine spawning grounds. In the Ola lagoon, 16 species of helminthes were identified, including 5 species of cestodes, whereas only 13 species of helminthes, including 3 species of cestodes, were found in the Amakhton Bay. The Taui population of herring is distinguished from the Okhotsk and Gizhiga-Kamchatka populations by presence of nematodes Hysterothylacium aduncum, l, and Ascorophis pacificus with rather high rates of invasion (occurence = 52.9 %; mean abundance = 4.16) and trematode Bucephaloides spp. On the other hand, the herring from the Taui population has common dangerous parasites with other populations in the Okhotsk Sea, as trematode Brachyphallus crenatus and nematode Anisakis spp. (larvae), with high degree of infestation.

The work described in this and the following paper is a continuation of that in parts I and II, devoted to elucidation of the mechanism of the reactions of methylene with chloroalkanes, with particular reference to the reactivities of singlet and triplet methylene in abstraction and insertion processes. The products of the reaction between methylene, prepared by the photolysis of ketene, and 1-chloropropane have been identified and estimated and their dependence on reactant pressures, photolysing wavelength and presence of foreign gases (oxygen and carbon mon­oxide) has been investigated. Both insertion and abstraction mechanisms contribute significantly to the over-all reaction, insertion being relatively much more important than with chloroethane. This type of process appears to be confined to singlet methylene. If, as seems likely, there is no insertion into C—Cl bonds under our conditions (see part IV), insertion into C2—H and C3—H bonds occurs in statistical ratio, approximately. On the other hand, the chlorine substituent reduces the probability of insertion into C—H bonds in its vicinity. As in the chloroethane system, both species of methylene show a high degree of selectivity in their abstraction reactions. We find that k S Cl / k S H >7.7, k T Cl / k T H < 0.14, where the k ’s are rate constants for abstraction, and the super- and subscripts indicate the species of methylene and the type of atom abstracted, respectively. Triplet methylene is discriminating in hydrogen abstraction from 1-C 3 H 7 Cl, the overall rates for atoms attached to C1, C2, C3 being in the ratios 2.63:1:0.


Zoosymposia ◽  
2011 ◽  
Vol 5 (1) ◽  
pp. 143-146 ◽  
Author(s):  
KIMIO HIRABAYASHI ◽  
GORO KIMURA ◽  
EISO INOUE

The species composition and abundance of adult caddisflies attracted to the illuminated showcase of a vending machine set along the middle reaches of the Shinano River were investigated every Sunday night from April to November in 2005 to 2007. A total of 1,405 adult caddisflies was collected during the investigation periods. We identified a total of 13 species belonging to 11 genera of 8 families. The most abundant species was Psychomyia acutipennis (Ulmer 1908) each year. Psychomyia acutipennis adults were collected from mid-May to the beginning of October (the range of mean air temperature was 13.8 to 27.7°C), with its seasonal abundance divided into several peaks, i.e., the end of May, the beginning of June, and the end of August to the beginning of September in both 2006 and 2007. On the other hand, in 2005 when there was no large-scale summer flood and there were no marked abundance peaks. The present study suggests that the mean air temperature and summer floods impacted the seasonal abundance of P. acutipennis adults.


1981 ◽  
Vol 3 (2) ◽  
Author(s):  
Klaus Lüderssen

AbstractIt is shown by means of four examples that the demarcation between law and morals has become problematical. The study of more recent developments in ethics and in law indicates that in both fields the relevance of discourse and consent has grown. Though both law and morals aim at agreement their degree of dependance on it differs. The definition of law and morals suggested in this article is based on this view. Legitimate law consists of norms, which besides fulfilling other conditions have attained a certain degree of consent. On the other hand one can only talk of social morals when a very high degree of consent has been reached. The consequences of this definition are explained by means of the examples presented at the beginning.


1983 ◽  
Vol 50 (04) ◽  
pp. 821-823 ◽  
Author(s):  
Ine Reyers ◽  
Giovanni de Gaetano ◽  
Maria Benedetta Donati

SummaryThree different schedules of treatment with warfarin were studied in rats bearing a polyethylene cannula in their abdominal aorta. The time of occlusion of the vascular prosthesis was significantly prolonged when warfarin was started 24 hr previously, at the time of loop insertion or 24 hr later. When the drug treatment was started 24 hr before insertion of the loop, however, a high degree of toxicity was observed. The animals of this group that died of hemorrhage had significantly lower mean thrombotest levels.On the other hand, the correlation between occlusion of the loop and level of anticoagulation was not as simple as one might anticipate; on the one hand, severe anticoagulation did not protect all of the rats from loop occlusion, but, on the other hand, recovery from hypocoagulability was not always immediately followed by occlusion of the loop.In order to better elucidate the mechanism of the antithrombotic effect of warfarin, we also assessed the effect of the drug on platelet-vessel wall interaction by the template bleeding time. A close association existed between warfarin-induced hypocoagulability and prolongation of the bleeding time.These observations may constitute the experimental basis for a better understanding of the antithrombotic effect of warfarin in some arterial diseases and in myocardial infarction.


2014 ◽  
Vol 65 (1) ◽  
pp. 52 ◽  
Author(s):  
S. Somma ◽  
A. L. Petruzzella ◽  
A. F. Logrieco ◽  
G. Meca ◽  
O. S. Cacciola ◽  
...  

The Fusarium graminearum species complex (FGSC) is a pathogen of durum wheat and other cereals worldwide. The complex consists of at least 15 species that can produce various mycotoxins, including trichothecenes, associated with human and animals toxicoses. In particular, deoxynivalenol (DON), nivalenol (NIV) and their different acetylated derivatives can be produced by the different chemotypes of the complex. In this study, 90 strains, isolated mainly from wheat in Italy and belonging to the FGSC, were assessed for their phylogeny and their chemotype and trichothecene genotype. Almost all strains of the FGSC belonged to F. graminearum sensu stricto, whereas two strains were F. cortaderiae. On the other hand, all three chemotypes, 3ADON, 15ADON and NIV, occurred; 15ADON was the most common molecular chemotype. The data show that the species composition of the Italian FGSC is homogeneous, whereas wide chemotype variability can occur within F. graminearum sensu stricto.


1994 ◽  
Vol 51 (2) ◽  
pp. 151-171
Author(s):  
Jim Norris

Scholars who have studied the Franciscan effort in New Mexico during the Spanish colonial epoch have generally posited that the watershed event in the missionary program was the Pueblo Revolt of 1680. Thus, the periodization for the Order's evangelical effort has been structured in two parts: pre-1680 and post-reconquest (1692-1821). One need only compare Fray Alonso de Benavides's glowing description of his brethren's work in the region in 1630 with that of Fray Silvestre Vélez de Escalante's harsh rebuke to the friars in 1777 to realize fundamental changes had occurred in the missionization process. Benavides's Franciscans are ardent, ascetic, and capable missionary priests. Consequently, prior to 1680, the Franciscan Order, in what the Spanish called the Kingdom of New Mexico, was able to maintain a high degree of authority, power, and prestige especially in regard to its relations with the local population and civil government. On the other hand, the missionaries condemned by Escalante are complacent, contentious idlers. While there are a dearth of studies on the post-1692 Franciscans, historians who have ventured into the era suggest a significant erosion in the quality and dedication of the later missionaries. The conclusion, then, is that these less committed friars were at least partially responsible for the decline of the Order's position within the Kingdom.


2016 ◽  
Vol 110 (2) ◽  
pp. 342-352 ◽  
Author(s):  
DENNIS C. RASMUSSEN

This article explores Adam Smith's attitude toward economic inequality, as distinct from the problem of poverty, and argues that he regarded it as a double-edged sword. On the one hand, as has often been recognized, Smith saw a high degree of economic inequality as an inevitable result of a flourishing commercial society, and he considered a certain amount of such inequality to be positively useful as a means of encouraging productivity and bolstering political stability. On the other hand, it has seldom been noticed that Smith also expressed deep worries about some of the other effects of extreme economic inequality—worries that are, moreover, interestingly different from those that dominate contemporary discourse. In Smith's view, extreme economic inequality leads people to sympathize more fully and readily with the rich than the poor, and this distortion in our sympathies in turn undermines both morality and happiness.


2020 ◽  
Vol 73 (4) ◽  
pp. 483-523
Author(s):  
Laura Becker ◽  
Matías Guzmán Naranjo

AbstractPrevious work on psych predicates has so far mostly focused on verbs and their non-canonical argument structures within and across languages. In this study, we propose a usage-based account using parallel subtitles in seven European languages in order to examine the intralinguistic and crosslinguistic variation of psychological expressions. We start out from 12 semantically defined psychological concepts rather than concrete constructions; this allows us to include verbal and non-verbal expressions and thus to assess the variation and distribution of construction types of psychological expressions found in language use. We show that while there is a high degree of variation in terms of constructions used within languages, psychological expressions are relatively stable across languages. On the other hand, we find systematic, crosslinguistic concept-specific preferences for psychological expressions.


2016 ◽  
Vol 20 (02) ◽  
pp. 1650031 ◽  
Author(s):  
NATALAYA SERGEEVA

Evaluations of “radicality” of innovations are mostly related to final products and services, however, examination of innovative ideas earlier on has an important implications for future innovations. Organisational members make decisions on whether or not to propose innovative ideas to the agenda. These decisions are often based on their personal judgements and perceptions. In this paper, a categorisation of innovative ideas by low, medium and high degree of radicality is proposed. The objective is to, on one hand, demonstrate the correctness of the categorisation proposed and, on the other hand, retrieve insights on how the level of radicality of products is conceived by practitioners. The results of a quasi-experimental investigation report that radicality of innovation relates to a degree of change in products. Based on perceptions of practitioners, with an increase in degree of radicality of innovative ideas, the value for rewards enhances.


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