Management Strategy Evaluation Research Articles

Salmon lice dispersal and population model for management strategy evaluation

Modern marine salmon aquaculture includes management of salmon lice (Lepeophtheirus salmonis) infestations. Moving from a reactive delousing treatment effort to a proactive preventive strategy requires a simulation tool integrating salmon lice spread between farms with a population dynamic model at individual farms. However, such predictions have proven challenging. Here, we propose a mechanistic cohort-based model of salmon lice that explicitly accounts for the development of lice in relation to temperature coupled with hydrodynamic particle simulations of lice infections between farms. The model was validated against observed salmon lice counts and is able to produce realistic patterns of salmon lice epidemic development, but has a limited ability to resolve realistic temporal salmon lice dynamics on a per-farm basis. The model can, however, be used to evaluate general regional and national management strategies e.g. level of treatment threshold. Results shown that decreasing the treatment threshold has no significant impact the total number of treatments indicating that there is no argument against lowering the treatment threshold in a connected farm network which will eventually benefit the wild salmonid populations.

Strategi Manajemen dalam Meningkatkan Kinerja Karyawan pada PT. Agta Sinar Jaya di Bandar Lampung

The purpose of this study was to determine the implementation of management strategies in improving employee performance at PT. Agta Sinar Jaya in Bandar Lampung, to explain the relationship of work discipline to the performance of employees of PT. Agta Sinar Jaya in Bandar Lampung, and to explain the evaluation of management strategies in improving the performance of employees of PT. Agta Sinar Jaya in Bandar Lampung. The type of research used is field research, which is descriptive in nature with a qualitative approach to obtain data that is relevant to the research being conducted. The required data was obtained through interviews conducted with a company director and several employees who were the source of research data at PT. Agta Sinar Jaya. The research results shown that management strategies in improving employee performance at PT. Agta Sinar Jaya still has not been implemented properly, because of the rolling position system, so that employees don't understand their respective new positions and need time to adapt first so they can do their jobs well. Management strategy on discipline in improving performance at PT. Agta Sinar Jaya, there are still about 80% of employees who are not disciplined. Evaluation of management strategies in improving performance at PT. Agta Sinar Jaya, in general, employees work well after attending debriefing and training and applying discipline by giving rewards and punishments.
 Keywords: performance, management, strategy

A retrospective evaluation of a multidisciplinary management strategy implemented to optimize outpatient care, hospitalization rates and clinical outcomes in a single-centre cohort of COVID-19-positive pregnant women in Australia during the Omicron BA.1 surge

Abstract Background During the Omicron BA.1 surge between 12 January and 18 February 2022, 189 COVID-19-positive pregnant women were managed by the Peninsula Health Positive Pathways program, in the Mornington Peninsula, Victoria, Australia. A multidisciplinary specialist team was rapidly assembled to work in conjunction with the Pathways COVID-19 physicians and monitoring team, to optimize patient care. Objective The aim is to describe the processes utilized to care for the pregnancy cohort from the time of enrolment to the COVID Monitor until recovery including outpatient monitoring, treatment strategies, hospital review criteria, and clinical outcomes including rate of hospitalization, oxygen requirements, and maternal and foetal outcomes during the study period. Method Outpatients were monitored daily by the Pathways program, while COVID-19 physicians and obstetricians conducted early telehealth review of patients after diagnosis. Members of the multidisciplinary team met on a virtual platform twice daily, and institution-specific treatment guidelines and hospital review criteria were established. Enoxaparin prophylaxis was delivered to the homes of selected patients, and inhaled budesonide was utilized for patients who did not require oxygen, who were immunocompromised, and who had significant respiratory symptoms or risk factors for deterioration. Sotrovimab was offered to women as per the existing Australian National COVID-19 Clinical Evidence Taskforce eligibility criteria. A service evaluation was undertaken adopting a retrospective cohort approach. Results There was minimal maternal morbidity and no mortality with 24/189 (12.7%) women requiring hospitalization, 18/189 (9.5%) requiring same-day emergency department presentations only, and 4/189 (2.1%) requiring oxygen, with no requirement for non-invasive ventilation or intensive care unit admission. Sixteen patients delivered live newborns during the study period, and there were two pregnancy losses at 7 and 19 weeks gestation, respectively, in patients with prior pregnancy complications. Conclusion A multidisciplinary approach involving virtual communication twice daily between treating specialist physicians may be a broadly applicable model to optimize care of pregnant women with COVID-19.

Evaluation of different weed management strategies including non‐chemical tools and cinmethylin for control of multiple herbicide‐resistant Alopecurus myosuroides

AbstractThe development of resistance in Alopecurus myosuroides populations to different herbicide active ingredients in Europe exacerbates efforts toward its chemical control. In Europe, cinmethylin provides an additional mode of action for the control of A. myosuroides. The objective of this study was to evaluate three resistance weed management (RWM) strategies, including cinmethylin and other pre‐emergence herbicides, for the control of multiple herbicide–resistant A. myosuroides. The RWM strategies used in this study differed in the extent of preventive cultural practices (tillage, crop rotation, sowing date and stale seedbed). Two field trials were conducted at sites with ACCase‐ and ALS‐resistant A. myosuroides biotypes in Germany between 2017 and 2020. Cinmethylin was included in the herbicide regime for A. myosuroides control. The combination of initial inversion tillage, delayed sowing, crop rotation diversification, and stale seedbed reduced the density of A. myosuroides bup to 90% compared to a strategy with pre‐emergence herbicides used as main components in control. At both sites, the amount of viable A. myosuroides seeds in the soil seed bank was reduced by over 90% after a 3‐year trial period in plots with initial inversion tillage. Molecular analyses revealed that the omission of ACCase and ALS inhibitors did not reduce the proportion of resistant A. myosuroides biotypes. Long‐term control of resistant A. myosuroides must be based on a combination of cultural practices that reduce the soil seed bank and suppress the occurrence of A. myosuroides and the use of still‐effective active ingredients for preventing the renewed entry of seeds into the soil.

Pancreatic cancer associated ascites: Risk factors, outcomes, and management.

e16305 Background: Pancreatic ductal adenocarcinoma (PDAC) is associated with significant morbidity and mortality as most patients present with advanced disease. The development of ascites has been associated with poor outcomes and further characterization and contemporary management strategies are needed. Therefore, we performed a comprehensive analysis of PDAC patients with ascites, including clinical and biological data, to describe its incidence, associated clinical factors, and outcomes. Methods: Patients were prospectively consented and enrolled the Gastrointestinal Biobank (“GI-Bank”) at Cedars-Sinai Medical Center, which collected patient specimens, associated clinical data, and self-reported questionnaires. Data was consolidated using a standard software tool (Redcap). Statistical analysis was conducted using Excel and using Datatab.net software tools. Results: Of the 437 patients with PDAC, 182 (41.6%) developed ascites. Overall survival (OS) between ascites and non-ascites groups were significantly different by log-rank test (p = 0.001), and estimated median OS was 473 days (95% CI [407, 537]) in ascites patients versus 554 days [467, 678] in non-ascites patients. In Cox proportional hazards model analysis, ascites status, but not sex or race, was associated with decreased survival (HR 1.49, [1.18, 1.87]). Ascitic fluid data was obtained in 77 patients; 62 (80.5%) had SAAG > 1.1; 14(22.6%) of SAAG > 1.1 patients also had positive cytology. The estimated median OS from the diagnosis of ascites was 100 days [76, 128] and median time to puncture was 4 days. Estimated median time from first tap to death was 56 days [42, 95]. 90 (49.5%) were treated with diuretics and 41 (22.5%) were treated with PleurX catheter. Patients with ascites had a worse survival and were more likely to receive greater than one chemotherapy regimen. There was no relationship between ascites and receipt of surgery or radiation. Conclusions: The development of ascites in patients with pancreatic cancer is common and contributes to significant morbidity and mortality. The use of diuretics is lower than would be expected for patients with elevated SAAG. Prospective evaluation of management strategies is needed to improve this important clinical conundrum.

Epilepsy: Evidence-based management

Epilepsy is a chronic neurological disorder characterized by recurrent seizures. It affects millions of people worldwide and can have a significant impact on a person’s quality of life. Evidence-based management is gaining popularity in all fields of Medicine. In the treatment of epilepsy it involves the use of proven strategies and interventions based on the best available research like systematic reviews and meta analysis. The goal of evidence-based management is to achieve seizure control while minimizing adverse effects and improving quality of life. Close collaboration between healthcare professionals, patients and caregivers is essential to developing and implementing effective management plans. Ongoing research and evaluation of management strategies are crucial to continuously improving the quality of care for the people with epilepsy. Bangladesh J Medicine 2023; Vol. 34, No. 2(1) Supplement: 183

Corrigendum: Integrating information from semi-structured interviews into management strategy evaluation: a case study for Southeast United States marine fisheries

CORRECTION article Front. Mar. Sci., 16 May 2023Sec. Marine Fisheries, Aquaculture and Living Resources Volume 10 - 2023 | https://doi.org/10.3389/fmars.2023.1205418

Community-based water demand management: socio-technical strategies for improving water security in Australian Indigenous communities

Sustainable water management in remote Australian communities is a delicate balance between sufficient and acceptable supply options and appropriate and effective demand approaches. This paper focus on the evaluation of community-based water demand management strategies piloted in four remote Aboriginal and Torres Strait Island communities in Australia. Findings of the pilot demonstrate that from a systems perspective, community-based demand management centred around education and encouragement of residents to conserve and use water efficiently, provide greater opportunities for long-term sustainable water management outcomes that support building of social capital. To ensure truly transformative management outcomes, a toolbox of socio-technological strategies should be used including, where possible, smart metering of water consumption and use of water-efficient devices. A key element of this approach to demand management calls for a shift away from business-as-usual policy towards a flexible learning approach that involves genuine collaboration between water managers and Indigenous communities.

Evaluating adaptive management frameworks for data-limited crustacean fisheries

Crustacean fisheries represent an increasingly important contribution to global landings, food security and economic growth, especially in developing countries. However, many productive and valuable crustacean fisheries in Asian countries are characterized by limited data availability, scientific capacity, and fisheries management. Adaptive management frameworks, which use past and emerging information to provide stock status information and management advice, have been touted as particularly applicable for managing capacity- and data-limited fisheries because they employ methods that can improve data collection and result in evaluations of stock and ecosystem status with varying levels of data and capacity. Here, we examined the application of three adaptive fisheries management frameworks (FISHE, FishPath, and DLMtool) to three typical Asian crustacean fisheries that offered contrasting data types and availability, governance, and management and socio-economic contexts. Our aim was to evaluate their suitability for crustacean fisheries and identify particular data and modeling needs and management gaps in these fisheries. We found that while each of the frameworks could effectively recommend suitable monitoring, assessment, and management options given particular contextual factors, there were also limitations with each approach. For example, FISHE took a more wholistic view of ecosystem and fisheries heath, while the other frameworks were more focused on particular aspects of management such as stock assessment (FishPath) and management strategy evaluation (MSE; DLMtool). Applications of each approach also highlighted particular challenges in collecting commercial catch data due to limited monetary investment and poorly designed monitoring programs, which further hindered the implementation of catch and effort limits. The three frameworks also shared common challenges when applied to crustacean species, mainly associated with misalignment with the unique life-histories of crustaceans compared to finfish. By comparing the outputs of the three frameworks, we highlighted their respective strengths and weaknesses and propose an integrated framework that incorporates elements of each of the three frameworks. This integration offers a more comprehensive adaptive roadmap tailored to crustacean fisheries, which involves a mix of qualitative and quantitative approaches that could be applied depending on contextual factors and capacities. To further improve the applicability of adaptive frameworks to crustacean fisheries, we suggest considering crustacean's unique life history and the effects of climate change and other environmental factors, strengthening participatory processes, and balancing socio-economic and ecological objectives.

Using the Soil and Water Assessment Tool (SWAT) to quantify the economic value of ecosystem services

AbstractModeling tools simulate the functioning of ecosystems and their interactions with human activities, helping decision makers understand how interventions impact ecosystems and evaluate management strategies. This leads to informed decisions that balance human development and environmental protection. Among these models, Soil and Water Assessment Tool (SWAT) stands out for its ability to simulate multiple biophysical processes that can be linked to the provision of ecosystem services (ES). Although SWAT has been successfully applied for the evaluation of ES, the development of complementary approaches that translate the results of SWAT into monetary terms is still in its early stages. To narrow this gap, this review article aims to provide a comprehensive assessment of the literature on the relationship between SWAT model results and economic analysis. Specifically, the review summarizes the research conducted on the use of SWAT model results to estimate economic values, including the different methodologies used and the types of economic values estimated. The review will also discuss the limitations and challenges of these approaches, provide a critical evaluation of the strengths and weaknesses of the research in this area, and provide recommendations to strengthen SWAT application for the economic evaluation of management strategies.

Freshwater discharge disrupts linkages between the environment and estuarine fish community

Freshwater diversions and damming have altered coastal ecosystems greatly, resulting in fundamental changes in salinity, eutrophication, and ensuing shifts in ecological communities. Recently, efforts to restore water delivery and water quality in coastal systems have increased. To explore the impacts of altered freshwater discharge to a subtropical estuary, here Bayesian structural equation models are used to quantify the relationships among water quality properties, nutrients, and predator (sport) and prey (forage) components of the fish community. During periods of relatively low freshwater input, predatory sport fish and lower trophic level forage fish guild dynamics were tightly coupled with water quality and one another. In this low freshwater discharge system, water quality and nutrients were the most strongly linked components of the system. Conversely, during periods of high-water discharge, there was virtually no link between water quality and sport or forage fish guilds, and the sport fish and forage fish guilds became the most tightly coupled components. Ultimately, freshwater discharge disrupted existing linkages within the broader ecosystem. Based on these results, we expect the restoration of low freshwater flow into the estuary would strengthen the relationship between the fish community and the environment. As restoration of estuaries and rivers continues globally, freshwater delivery to downstream systems will be altered. Following the approach presented here, Bayesian structural equation models can be used to generate insight regarding potential system wide shifts following alteration of freshwater delivery, thereby providing a critically important tool for evaluating management strategies.

Tuna Regional Fisheries Management Organizations Need to Prioritize Transition to Management Procedures

Tuna regional fisheries management organizations (tRFMO) have made strong commitments to developing and implementing management procedures as a more effective and science‐based alternative to traditional management approaches. Management procedures have become popular in fisheries management as they use management strategy evaluation testing to successfully account for uncertainty, balance tradeoffs among competing objectives, and establish an algorithm to set fishing opportunities based on stock status. While four tRFMOs have seven management procedures in place and all five tRFMOs are developing management procedures for an additional 15 stocks, delays in development are widespread. No tRFMO has adhered to its agreed‐upon adoption deadline for all 22 management procedures, with 13 management procedure deadlines being delayed by four or more years. Such delays can be reduced or avoided through increased stakeholder involvement, market pressure, and support from external organizations and governments, all of which can be achieved through capacity building as well as the establishment and regular meeting of science–management dialogue groups.

Defining sustainable and precautionary harvest rates for data-limited short-lived stocks: a case study of sprat (Sprattus sprattus) in the English Channel

Abstract Empirical harvest control rules set catch advice based on observed indicators and are increasingly being used worldwide to manage fish stocks that lack formal assessments of stock and exploitation status. Within the International Council for the Exploration of the Sea, trend-based rules that adjust advice according to recent survey observations have been adopted; however, there is increasing evidence that such rules do not work well for short-lived pelagic species that can exhibit large inter-annual fluctuations in stock size. Constant harvest rates, removing a fixed proportion of observed biomass index, have been proposed as a suitable strategy for managing short-lived species. Unknown survey catchability has, however, remained a barrier to reliance on their application on these stocks in the past. We apply simulation testing to define a robust, sustainable constant harvest rate for a data-limited short-lived stock, using the English Channel sprat as a case study. By conditioning a management strategy evaluation framework based on existing and borrowed life-history parameters and precautionary considerations, we test and show that a constant harvest rate outperforms trend-based catch rules, maximizing yields while reducing risks of stock overexploitation, and conclude an 8.6% constant harvest rate provides sufficiently precautionary catch advice for this stock.

Spatial awareness: Good practices and pragmatic recommendations for developing spatially structured stock assessments

Spatial population structure is a fundamental aspect of marine populations, yet it is rarely incorporated in stock assessment models. The unit stock assumption, a common feature of many assessments, is an axiom of the single-species modeling convention, which developed in the mid-20th century when the spatial resolution of fishery data was coarse and uncertain, computing power limited, and the impact of biocomplexity on sustainable harvest levels not well understood. Despite rapid advances along all of these research fronts in the 21st century, spatial assessments remain rarely utilized as the basis of management decision-making. A potential hindrance to broader utilization of spatial stock assessments is the lack of guidance on how to choose an appropriate spatial modeling framework for a given application. Thus, we review the types of spatial assessment models available, summarize options to parameterize population structure, offer guidance to promote the development of candidate spatial assessment models for application in management procedures, and provide a pragmatic guide for choosing a spatial assessment model given observed spatial structure, data limitations, and management concerns. A spatial assessment should match the assessment unit(s) to interdisciplinary stock identification of unit populations, adequately represent the spatial structure within an assessment unit, simultaneously model multiple interacting population units, when appropriate, and provide outputs for managers that can be used to prevent local depletion of spawning populations. As data permits, higher resolution intra-population spatial structure can be addressed to increase homogeneity within the modeled unit, while connectivity among population units may also be explicitly incorporated. Small sample sizes can limit spatial assessment applications, but incorporating novel data sources and parameterizing models efficiently (e.g., sharing parameters among spatial units, implementing habitat preference functions to improve movement dynamics, and including spatial autocorrelation) can resolve some practical constraints. Management strategy evaluation should be more widely utilized to identify minimally complex management procedures that provide robust advice, while imprecision of spatial models should be weighed against the inherent bias of spatially aggregated assessments.

Evaluation of sediment management strategies for Tarbela reservoir

Globally, multipurpose large dams play significant roles by providing water for irrigation, flood control and hydropower. This study aims to evaluate different strategies for the evacuation of deposited sediments in Tarbela reservoir by using Hydrologic Engineering Center-River Analysis System. Sediment flushing from existing power tunnels was found infeasible due to the downstream constraints and the loss of hydropower. New sediment bypass tunnels on the right-side bank of the dam to overcome the constraints were analysed. The sediment balance ratio, long-term capacity ratio and economic analysis were computed along with sediment modelling for different scenarios. The most technically viable scenario was 90 days flushing at 390 m drawdown level with a discharge of 5000 m3/s. This scenario was not economically feasible in terms of net present value, internal rate of return and the benefit cost ratio. The upstream under construction Diamer Basha dam was also evaluated. The results suggested a large volume of sediment would be trapped in the upstream reservoir, which would ultimately lead to a significant reduction in the inflow of sediment and the delta movement in the Tarbela reservoir. This option was recommended due to its multiple benefits and potential capacity to enhance Tarbela reservoir's life.

Evaluation of management performance of a new state-space model for pink salmon (Oncorhynchus gorbuscha) stock–recruitment analysis

A new state space stock –recruitment (SR) model (XSR) was developed to treat observation errors in spawner and catch data, and nonstationarity in productivity for pink salmon ( Oncorhynchus gorbuscha) . Closed loop simulation was used to evaluate the management performance of XSR and compare its performance with that of a traditional SR model (TSR) and a Kalman Filter (KF). XSR produced higher expected catch than TSR and KF over a wide range of conditions. In some situations, TSR was preferred for reducing conservation concerns. However, large “outcome uncertainty” (OU) or implementation error in achieving desired management objectives can substantially reduce the management benefits of all assessment methods. Thus, OU should be considered in all management strategy evaluations, otherwise results will be misleading. Accordingly, reducing OU may better help achieve objectives.

When to conduct, and when not to conduct, management strategy evaluations

Abstract The basis of natural resource management is decision making under uncertainty while balancing competing objectives. Within fisheries management, a process described as management strategy evaluation (MSE) is becoming increasingly requested globally to develop and test management procedures. In a fisheries or other natural resource context, a management procedure is a rule that predetermines the management response given feedback from the resource and is simulation tested to be robust to multiple uncertainties. MSEs are distinguished from other risk or simulation analyses by the explicit testing of the feedback mechanism that applies decision rule-based management advice back to the simulated population or ecosystem. Stakeholder input is frequently cited as a best practice in the MSE process, since it fosters communication and facilitates buy-in to the process. Nevertheless, due to the substantial additional cost, time requirement, and necessary scientific personnel, full stakeholder MSEs remain relatively uncommon. With this communication, we provide guidance on what constitutes an MSE, when MSEs should be undertaken or where simpler approaches may suffice, and how to prioritize the degree of stakeholder participation.

A delay‐differential model for representing small pelagic fish stock dynamics and its application for assessing alternative management strategies under environmental uncertainty

AbstractWe present a novel adaptation of the classic discrete delay‐difference model, a continuous delay‐differential model (cDDM), which can adequately represent population dynamics of stocks that turn over rapidly and continuously over time (e.g., small pelagic fish, small tunas, and shrimps). We used the Northern‐Central Peruvian anchoveta stock (Engraulis ringens, Engraulidae) as a case study for implementing the cDDM and conducted a management strategy evaluation (MSE) through stochastic optimization in policy space (SOPS). Our results showed that cDDM integrated with SOPS efficiently searches optimum and near‐optimum harvest control rules (HCR) and is an alternative to pre‐setting arbitrary HCRs as in traditional MSE. The cDDM showed comparable stock biomass and recruitment estimate reconstructions to more complex stock assessment models described for anchoveta. We concluded that the anchoveta stock is sustainably managed and is an example of adaptive fisheries management under high ocean‐climate variability and uncertainty. Contrary to fishery textbooks, the anchoveta's collapse was not entirely due to the 1972 El Niño (EN) but a recruitment failure preceding EN. Our reconstructions revealed that low recruitment (or recruitment failure) could still occur at high stock biomass. Anchoveta's stock biomass is larger than pre‐collapse, likely due to favourable environmental conditions (a cooling trend) and management, despite more frequent and stronger EN events. SOPS quickly revealed that harvest strategies with large base biomass (>5 mmt) lead to higher interannual stock variability and would not produce substantial increases in long‐term yield. Alternative HCRs with lower base biomass, while adjusting for productivity regimes, have similar long‐term yields without affecting the long‐term average stock.

Dental Erosion and Diet in Young Children and Adolescents: A Systematic Review

Dental erosion is the irreversible loss of tooth enamel caused by acid attack without any bacterial involvement. Interest in dental erosion has increased considerably during the past decade. This paper aims to determine the prevalence of and association of dental erosion with diet or beverages in children. A systematic review of the literature has been carried out in accordance with the PRISMA recommendations. A search was performed in PubMed, Embase Scopus and Web of Science databases, and completed manually. Those studies that dealt with erosive risk factors related to diet and that included their effect on deciduous or mixed dentition were selected. Dual independent screening, data extraction and risk of bias assessment were concluded. A total number of 708 articles were identified from the initial electronic search of the four databases. Some 466 articles were selected after duplicated articles were discarded. After reading the title and abstract, we eliminated 376 articles; the remaining 90 were meant to be read in order that we could dispatch the ones that did not answer the research question or the inclusion criteria. A total of 25 articles remained for the systematic review. Erosive lesions are favored by the consumption of carbonated and isotonic drinks, fruit juices and acid sauces. Carbonated, isotonic drinks and fruit drinks favor the development of erosive lesions, not so the consumption of fruit juices mixed with dairy products such as milkshakes, yogurts and/or tea. The findings of this article will help researchers, academics and students to characterize the scientific results regarding dental erosion and diet, to evaluate management strategies and to identify significant topics and questions that will help to design future research with the aim of the prevention of the disease. Registration number: CDR42023389750.

Structure of Microscopic Fungal Species in Soils at Amber Mining Territories before and during the use of New Technology of Pine Plantation Formation.

Introduction: Ukraine is one of the European leaders in amber deposits. The main deposits of the mineral are concentrated in the forests of the Rivne, Zhytomyr and Volyn regions. As a result of the extraction process, the integrity of forest’s ecosystems is violated, the fertile soil layer is destroyed, and 3.5 thousand hectares of forests have to be restored. Aim: Evaluation of different forest management strategies in degraded soil regeneration. Objective: The study aims to explore the response of soil mycobiota to extreme conditions associated with amber mining and to propose biotechnology to restore the fertile soil layer by methods of regenerative land use, namely the use of biomass of various ways of birch cuts, which is the primary succession to the indigenous pine stands in the region. Materials and Methods: The study was carried out on the territory of the Klesiv amber deposit in the Ukrainian Polissya. The bioindication method with the help of soil micromycetes was used to assess the quality of the plant development environment in the conditions of ecosystem restoration after amber extraction. To determine the species composition of hyphomycetes, the method of serial dilutions and direct seeding on agar media of soil suspensions was used. The analysis of soil mycobiota was performed using quantitative ecology methods. The method of correlation groups was used to determine the taxonomic diversity of hyphomycetes. To determine the effectiveness of the restoration of the studied forest soils, the express analysis of the content of essential nutrients using NPK-sensor was used. Standard methods for the determination of mobile phosphorus, potassium and nitrogen compounds were used as controls. Results: The species composition and taxonomic characteristics of soil micromycetes of forest ecosystems disturbed by amber mining have been studied. It was found that in the areas of amber mining, soil micromycetes form linear connections and three-membered structures, which is characteristic of disturbed biocenoses. In the 60-year-old plantation, soil micromycetes form strong six-membered structures that are characteristic of menopausal ecosystems or intact biocenoses. The biotechnology of restoration of the indigenous plantation characteristic of these conditions - pine with an admixture of hanging birch is offered. The result of the application of this technology will allow to reproduce natural forest ecosystems in large areas. Conclusion: For the first time, the structure of fungal complexes in the areas of amber mining has been determined, which indicates that the formation of a stable structure requires time and a systematic approach to the restoration of damaged soils. In the soils disturbed by amber mining, initial linear, three-membered and four-membered structures were formed, the structural genera of which are the “pioneer genera” Penicillium, Mucor, Rhizopus, the species of which were the first to inhabit plant remains. In the process of reforestation in areas affected by amber mining, biotechnology was used for the first time, which involved the formation of natural pine stands by cutting birch, forming the primary succession in the studied areas. The comparison of the results of chemical analysis of soils of the studied areas of the Klesiv forestry before and after the application of birch pruning technology for the formation of pine stands proves the effectiveness of the technology, as in all areas nitrogen, phosphorus and potassium were increased in the soil.