Biology and Management of Inland Striped Bass and Hybrid Striped Bass

2013 ◽  
Keyword(s):  
Striped Bass ◽  
Prey Availability ◽  
Management Practice ◽  
Late Summer ◽  
Habitat Requirements ◽  
Niche Segregation ◽  
Large Fish ◽  
Temperature Selection ◽  
Thermal Niche

<em>Abstract</em>.—Striped bass <em>Morone saxatilis</em>, originally a coastal and estuarine species, has been introduced in reservoirs in the southeastern and western United States. Although such stocking established many successful fisheries, there were troublesome die-offs of adult striped bass (3–9 kg, generally >5 kg) in some waters, usually in late summer. In contrast, juveniles and small adults thrived. In response to these patterns, my students and I conducted several years of telemetry studies of adult striped bass, primarily in Cherokee and Watts Bar reservoirs, Tennessee, and laboratory studies of juvenile temperature selection. In 1985, I published the “temperature–oxygen squeeze” hypothesis to explain mortalities of large fish on the basis of limited availability of cool (<25°C), oxygenated (>2 mg/L) water in summer while juveniles successfully occupied a warmer thermal niche (>25°C). We now have more than 20 years of research and management since 1985, primarily across the Southeast, in which the published hypothesis has, explicitly or not, been tested, generally confirmed, and applied to management. This retrospective paper reviews the studies our team conducted to develop and test the hypothesis and about 20 years of relevant studies by others that have added important nuances, addressed lingering issues, and turned a controversial idea into generally accepted understanding and management practice. Nonetheless, issues remain for understanding the effects of poor summer habitat on striped bass, such as why some studies show striped bass occupying warmer temperatures without mortalities and the role of prey availability in survival of fish obliged to occupy warm water. Other papers in this volume augment and extend the saga of progressively developing knowledge that this paper recalls of striped bass habitat requirements, thermal niche segregation by size (or age), and management constraints and opportunities.

Biology and Management of Inland Striped Bass and Hybrid Striped Bass

2013 ◽  
Keyword(s):  
Striped Bass ◽  
Prey Availability ◽  
Biotic Interactions ◽  
Early Life History ◽  
Mountain Lake ◽  
First Year ◽  
Fish Prey ◽  
Abiotic And Biotic Factors

<em>Abstract</em>.—The stocking of fingerling striped bass <em>Morone saxatilis</em> in freshwater impoundments has led to the development of successful put-grow-take fisheries throughout the southern United States. However, first-year survival of stocked fingerlings is often low. To enhance stocking success of striped bass, a better understanding is needed on the impacts of different stocking strategies on early life-history dynamics. In this review paper, we first examined the existing literature on the role of abiotic and biotic factors on recruitment dynamics of stocked piscivores in inland freshwater systems. Second, we compiled the results of a progressive series of studies that were completed over a 25-year period in Smith Mountain Lake, Virginia, that focused on understanding the relationship between striped bass stocking success and biotic interactions, forage-fish prey availability and dynamics, and first-year recruitment. This case study demonstrated that differential intra-cohort growth and poor first-year winter survival are the primary factors limiting stocking success and that stocking fingerlings at a greater number of sites throughout the lake at lower densities improved recruitment to age 1. With this information, we provide stocking size, time, density, and location strategy recommendations that should yield increased survival and stocking success of striped bass in freshwater impoundments.

Artificial intelligence and the management transformation

2020 ◽  
Vol 16 (4) ◽  
pp. 600-612
Author(s):  
L.F. Nikulin ◽  
V.V. Velikorossov ◽  
S.A. Filin ◽  
A.B. Lanchakov
Keyword(s):  
Artificial Intelligence ◽  
Social Life ◽  
Soft Power ◽  
Process Integration ◽  
Management Practice ◽  
Scientific School ◽  
Strategic Culture ◽  
Analysis And Synthesis ◽  
And Training

Subject. The article discusses how management transforms as artificial intelligence gets more important in governance, production and social life. Objectives. We identify and substantiate trends in management transformation as artificial intelligence evolves and gets more important in governance, production and social life. The article also provides our suggestions for management and training of managers dealing with artificial intelligence. Methods. The study employs methods of logic research, analysis and synthesis through the systems and creative approach, methodology of technological waves. Results. We analyzed the scope of management as is and found that threats and global challenges escalate due to the advent of artificial intelligence. We provide the rationale for recognizing the strategic culture as the self-organizing system of business process integration. We suggest and substantiate the concept of soft power with reference to strategic culture, which should be raised, inter alia, through the scientific school of conflict studies. We give our recommendations on how management and training of managers should be improved in dealing with artificial intelligence as it evolves. The novelty hereof is that we trace trends in management transformation as the role of artificial intelligence evolves and growth in governance, production and social life. Conclusions and Relevance. Generic solutions are not very effective for the Russian management practice during the transition to the sixth and seventh waves of innovation. Any programming product represents artificial intelligence, which simulates a personality very well, though unable to substitute a manager in motivating, governing and interacting with people.

Plant species surplus in recent peri-urban forests: the role of forest connectivity, species’ habitat requirements and dispersal types

2021 ◽  
Vol 30 (2) ◽  
pp. 365-384
Author(s):  
Elena Tello-García ◽  
Nancy Gamboa-Badilla ◽  
Enrique Álvarez ◽  
Laura Fuentes ◽  
Corina Basnou ◽  
...  
Keyword(s):  
Plant Species ◽  
Urban Forests ◽  
Habitat Requirements ◽  
Forest Connectivity ◽  
Dispersal Types

scholarly journals Implication of O2 dynamics for both N2O and CH4 emissions from soil during biological soil disinfestation

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Chen Wang ◽  
Xuehong Ma ◽  
Gang Wang ◽  
Guitong Li ◽  
Kun Zhu
Keyword(s):  
Wheat Straw ◽  
Crop Residues ◽  
Management Practice ◽  
Organic Amendments ◽  
Soil Disinfestation ◽  
Hypoxic Area ◽  
Hypoxic Fraction ◽  
Biological Soil Disinfestation ◽  
Straw Incorporation

AbstractSoil O2 dynamics have significant influences on greenhouse gas emissions during soil management practice. In this study, we deployed O2-specific planar optodes to visualize spatiotemporal distribution of O2 in soils treated with biological soil disinfestation (BSD). This study aimed to reveal the role of anoxia development on emissions of N2O and CH4 from soil amended with crop residues during BSD period. The incorporation of crop residues includes wheat straw only, wheat straw with biochar and early straw incorporation. The anoxia in soil developed very fast within 3 days, while the O2 in headspace decreased much slower and it became anaerobic after 5 days, which was significantly affected by straw and biochar additions. The N2O emissions were positively correlated with soil hypoxic fraction. The CH4 emissions were not significant until the anoxia dominated in both soil and headspace. The co-application of biochar with straw delayed the anoxia development and extended the hypoxic area in soil, resulting in lower emissions of N2O and CH4. Those results highlight that the soil O2 dynamic was the key variable triggering the N2O and CH4 productions. Therefore, detailed information of soil O2 availability could be highly beneficial for optimizing the strategies of organic amendments incorporation in the BSD technique.

Service quality of property managers of shopping complexes in Ibadan, Nigeria

2019 ◽  
Vol 37 (3) ◽  
pp. 310-326 ◽  
Author(s):  
Samson Oluseun Ojekalu ◽  
Olatoye Ojo ◽  
Timothy Tunde Oladokun ◽  
Sumoila Aremu Olabisi ◽  
Sunday Samuel Omoniyi
Keyword(s):  
Service Quality ◽  
Multiple Regression ◽  
Management Practice ◽  
Sampling Technique ◽  
Primary Data ◽  
Stepwise Multiple Regression ◽  
Systematic Sampling ◽  
Content Type ◽  
Five Axes

PurposeThe purpose of this paper is to assess the service quality (SQ) of property managers of shopping complexes in Ibadan with a view to improving management practice.Design/methodology/approachPrimary data were used for the study through questionnaire administration. Ibadan was stratified into five axes using existing major roads where shopping complexes were highly concentrated. From each axis, 33, 65, 48, 64 and 66 shopping complexes were identified (Oyo State Ministry of Land, Housing and Survey, 2017), and the systematic sampling technique (20 percent) was adopted to select 57 out of 276 shopping complexes and 192 (10 percent) out of 1919 occupiers of the shopping complexes in the study area. In total, 157 occupiers responded to the questionnaire, and the data were analyzed using mean ranking and stepwise multiple regression.FindingsThis study found that professionalism, tangible, assurance and empathy dimensions of SQ were rated fair, whereas reliability and responsiveness dimensions were rated poor. Also, stepwise multiple regression analysis predicted 78.5 percent overall SQ of property managers, and assurance, professionalism and empathy dimensions contributed significantly to the overall SQ. Hence, reliability and responsiveness dimensions of SQ need to be improved. It is expected that the findings of this study will help property managers to understand the role of various dimensions of SQ for enhanced property management practice.Originality/valueThe study is one of the few studies that assessed the SQ of property managers of shopping complex with a view to improving its management practice.

The risk associated with strategic decisions: is it a marketing issue?

2019 ◽  
Vol 35 (1) ◽  
pp. 6-8
Author(s):  
Davide Settembre-Blundo ◽  
Alfonso Pedro Fernández del Hoyo ◽  
Fernando Enrique García-Muiña
Keyword(s):  
Design Methodology ◽  
Management Practice ◽  
Current Debate ◽  
Strategic Decisions ◽  
New Approach ◽  
Content Type ◽  
Marketing Function ◽  
Strategic Approach ◽  
Management Perspective

Purpose The purpose of this paper is to analyze the strategic management of risks in companies from a marketing management perspective and to provide some guidance for management practice. Design/methodology/approach This paper presents the authors’ viewpoint, and it conceptualizes a new approach to risk management. Findings The conceptual discussion has opened up a possible new way for enterprises, especially SMEs, to start taking a strategic approach to risk. Originality/value This paper would like to contribute to the current debate on the role of marketing function in managerial practice beyond the classic four Ps.

scholarly journals Role of Knowledge Management on Organizational Performance, Case of Jimma University in Ethiopia

2021 ◽  
Keyword(s):  
Knowledge Management ◽  
Knowledge Sharing ◽  
Organizational Performance ◽  
Management Practice ◽  
Academic Staff ◽  
Team Work ◽  
Knowledge Management Practice ◽  
Ordinal Logistic Regression Analysis ◽  
Jimma University

This study explored role of knowledge management practice on the performance in higher education institute at Jimma University College of agriculture and Veterinary medicine in Ethiopia, considering academic staff perception. The study mainly employed quantitative descriptive research design using cross sectional design also used qualitative approach. For data collection, pre-tested self-administered structured questionnaire used. Considering 143 academic staff a population studied using census approach out of total 214 excluding those currently engaged in further study. Response rate was 81.8%. Descriptive and inferential statistics analysis employed utilizing STATA 14. Major finding includes: willingness of knowledge sharing and discovery was at high level. Knowledge sharing, capture, utilization as well as organizational and IT infrastructure support was at medium level. Chi-square (χ2) test indicated there is association between knowledge capture, sharing, utilization, organization support, IT support and performance. However ordinal logistic regression analysis revealed that only component knowledge utilization has positive and significant impact on performance. The study identified challenges in the practice of knowledge management such as inadequate fund, unsatisfactory documentation, inadequate support and cooperation consecutively. Thus college should spend more in knowledge management practice can improve innovation utilized in funding research, enhance team work, improving technology, motivate academic staff to retain and share knowledge. Keywords: knowledge management, knowledge share, Performance, Practice, Process

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