Challenges for Diadromous Fishes in a Dynamic Global Environment

2009 ◽  
Keyword(s):  
Management Practices ◽  
Oil And Gas ◽  
Aboriginal People ◽  
Integrated Management ◽  
New Technology ◽  
Single Species ◽  
Economic Sectors ◽  
Farmed Salmon ◽  
European Contact ◽  
Ecosystem Based Management

<em>Abstract</em>.-Aboriginal people developed integrated ecosystem-based management long before European contact in the 1750s. Ecosystem knowledge contributed the lion's share of precontact wealth. Fisheries drove the early British Columbia economy, but now account for less than 0.5% of gross domestic product. Even thought West Coast research shows that precontact ecosystems could sustain many times current catch value, this still would not weigh heavily against other economic sectors. Single species management has failed to avert the depletion of many fisheries; hence, we now hear calls for ecosystem-based management as opposed to integrated management (used in reference to managing multiple sectors such as fisheries, farmed salmon, oil, and gas, as well as climate change). We suggest that reintegrating ecosystem-based and integrated management necessitates the cooperation of other ocean sectors in generating the information necessary to monitor and restore ecosystems while ensuring that their own operations are sustainable. Currently, there are a number of scientific initiatives, ocean and biological observing platforms, and high-powered models to help develop new management regimes. We consider how this new technology could help to understand the collapse of eulachon <em>Thaleichthys pacificus</em>. Eulachon are of great importance to Native peoples but could well be described as the forgotten anadromous fish of the research community. It is important that both industry and governments recognize the importance of maintaining the long-term viability of these important tools and invest appropriately to ensure sound ecosystem management practices into the future.

A New Produced Water Management Policy for the Energy Sector of Trinidad and Tobago

2021 ◽  
Author(s):  
Tushara Maharaj ◽  
Marc Rudder ◽  
Vyshaia Singh ◽  
Wayne Rajkumar ◽  
Vidjaya Ramkhalawan
Keyword(s):  
Water Pollution ◽  
Trinidad And Tobago ◽  
Management Practices ◽  
Oil And Gas ◽  
Produced Water ◽  
Integrated Management ◽  
Management Policy ◽  
Management Approach ◽  
Environmentally Sustainable ◽  
Toxic Components

Abstract A Produced Water (PW) Management framework is presented, forming part of an Upstream Effluent Management (UEM) Policy. It addresses the minimization and ultimate elimination of treated and untreated PW discharge by utilization of an integrated management approach to ensure Zero Harmful Discharge (ZHD) to the environment. This approach targeted legislative reform, sustainable PW management practices, monitoring and evaluation, research and development and sustainable production patterns. A Cabinet-appointed Upstream Effluent Management Committee was established for evaluating the status of the upstream, oil and gas, effluent management practices including that of PW and providing recommendations on the way forward. This included determining the challenges in meeting relevant environmental standards; evaluating Best Available Technology (BAT) or Best Practicable Environmental Options (BPEO) for local use and benchmarking local standards against international best practices. Ultimately, a UEM Policy, inclusive of a PW Management Policy, and a revised Water Pollution Rules 2019 (WPR) were developed, submitted and approved by the Cabinet of Trinidad and Tobago. Emerging from data evaluation and committee consultations, it was found that parameters from PW streams, such as Chemical Oxygen Demand (COD), Phenols and Ammoniacal Nitrogen were regularly out of compliance with local permissible limits. Additionally, it was noted that PW management was known to be generally costly, in terms of monitoring, treatment and disposal operations. As such the UEM Committee recommended that measures be taken to facilitate better PW management including, amendments to the Water Pollution Rules 2001 (as amended) and the TTS 547:1998, Specification for the Effluent From Industrial Processes Discharged into the Environment; to focus more on toxic components such as BTEX (Benzene, Toluene, Ethylbenzene and Xylene) and PAH (Polycyclic Aromatic Hydrocarbons); improvement of the chemical evaluation and approval process by the Ministry of Energy and Energy Industries (MEEI) to include a pre-screening step; and the establishment of National Ambient Water Quality Standards, which have been included in the revised WPR. The WPR also encourages re-use as a beneficial discount through the revised annual permit calculation. In addition, Environmental Risk Assessments (ERA) are to be utilized to evaluate the physical, biological and socio-economic environmental standing of the marine environment of Trinidad and Tobago, so as to comprehensively deduce the full impacts of effluent discharge. Trinidad and Tobago has been in oil and gas operations for over 100 years and this integrated management approach for PW introduces a set of novel strategies and tools, geared towards moving in a more environmentally sustainable direction. The approach envisages the use of a more industry-specific regulation that focuses on the toxic components. Furthermore, this method acknowledges that "not-one-size-fits-all" and so, based on the ERA results for the specific geographic marine jurisdictions surrounding Trinidad and Tobago; it encourages more environmentally sustainable and cost effective management.

scholarly journals Organic Farming and Cover-Crop Management Reduce Pest Predation in Austrian Vineyards

Insects ◽  
2021 ◽  
Vol 12 (3) ◽  
pp. 220
Author(s):  
Jo Marie Reiff ◽  
Sebastian Kolb ◽  
Martin H. Entling ◽  
Thomas Herndl ◽  
Stefan Möth ◽  
...  
Keyword(s):  
Organic Farming ◽  
Pest Control ◽  
Cover Crops ◽  
Cover Crop ◽  
Management Practices ◽  
Integrated Management ◽  
Lobesia Botrana ◽  
Management Options ◽  
Natural Pest Control ◽  
Predation Rates

Habitat simplification and intensive use of pesticides are main drivers of global arthropod declines and are, thus, decreasing natural pest control. Organic farming, complex landscapes, and local vineyard management practices such as implementation of flower-rich cover-crop mixtures may be a promising approach to enhance predator abundance and, therefore, natural pest control. We examined the effect of organic versus integrated management, cover-crop diversity in the vineyard inter-rows, and landscape composition on the natural pest control of Lobesia botrana eggs and pupae. Predation of L. botrana pupae was reduced by organic farming and species-poor cover-crops by about 10%. Predation rates of L. botrana eggs did not differ significantly in any of the studied management options. Dominant predators were earwigs (Forficulidae), bush crickets (Tettigoniidae), and ants (Formicidae). Negative effects of organic viticulture are most likely related to the negative nontarget effects on arthropods related to the frequent sulfur and copper applications in combination with the avoidance of strongly damaging insecticides by integrated winegrowers. While a 10% difference in predation rates on a single pest stage is unlikely to have strong practical implications, our results show that the assumed effectiveness of environmentally friendly agriculture needs to be evaluated for specific crops and regions.

scholarly journals Integrated Management of Downy Mildew on Slicing Cucumber With Fungicides and Host Resistance But Not Trellising

Plant Disease ◽  
2019 ◽  
Vol 103 (10) ◽  
pp. 2592-2598
Author(s):  
Anthony P. Keinath
Keyword(s):  
Downy Mildew ◽  
Host Resistance ◽  
Management Practices ◽  
Integrated Management ◽  
Cultivar Resistance ◽  
Fall Season ◽  
Fungicide Treatment ◽  
Progress Curve ◽  
Management Techniques ◽  
The Mean

The objective of this study was to evaluate fungicide applications, host resistance, and trellising, alone and in combination, as management practices for downy mildew on slicing cucumber. A split-split plot experimental design was used with three and four replications in spring and fall 2017, respectively. The whole-plot treatment was fungicide, four applications of chlorothalonil (Bravo Weather Stik 6SC) alternated with three applications of cyazofamid (Ranman 400SC), or water. Split plots were nontrellised or trellised with four strings supported by stakes. Split-split plots were cultivar Bristol, which is intermediately resistant to downy mildew, or cultivar Speedway, which is susceptible to downy mildew with similar parentage as Bristol. In both seasons, area under the disease progress curve (AUDPC) values were lower with fungicides than water for both cultivars. In the spring, AUDPC for Bristol was lower than for Speedway regardless of fungicide treatment. In the fall, Bristol had a lower AUDPC than Speedway with fungicides, but the AUDPC did not differ between the two cultivars with water. The mean AUDPC for trellised plants (376.2) was lower than for nontrellised plants (434.0; P = 0.007). Fungicide applications increased marketable and total fruit weights in both seasons (P ≤ 0.0002). Marketable weight with fungicides was almost double (93% greater) the marketable weight with water. Marketable weight was 55% greater for Bristol than for Speedway in spring, but yields did not differ between cultivars in fall (season-by-cultivar interaction, P ≤ 0.0003). Because trellising had no effect on marketable yields (P = 0.11), trellising is not recommended for managing downy mildew on slicing cucumber. Of the three management techniques examined, fungicides had the largest effects on disease and yields, followed by cultivar resistance.

scholarly journals Innovative Extension Methods in the U.S. to Promote Irrigation Water Management

2020 ◽  
Vol 63 (5) ◽  
pp. 1549-1558
Author(s):  
Daran R. Rudnick ◽  
Matt Stockton ◽  
Saleh Taghvaeian ◽  
Jason Warren ◽  
Michael D. Dukes ◽  
...  
Keyword(s):  
Water Management ◽  
Experiential Learning ◽  
Best Management Practices ◽  
Irrigation Water ◽  
Management Practices ◽  
New Technology ◽  
List Type ◽  
Extension Programs ◽  
Irrigation Water Management ◽  
Primary Means

HIGHLIGHTSUniversity extension has been playing a larger role, serving a larger number of irrigated farms.Extension programs in irrigation water management (IWM) have been transitioning away from lectures and field tours as the primary means of knowledge transfer.New IWM programs focus on experiential learning, development of practitioner networks, and industry participation.Abstract. Promotion and adoption of irrigation water management (IWM) technology, tools, and best management practices are important as water availability concerns are addressed. Traditional extension programs have relied on lecture presentations, field tours, fact sheets, and on-station demonstrations to promote IWM practices and tools. However, these platforms tend not to provide the experience and opportunity for growers to identify and become comfortable with innovative solutions, such as new technology. To address these challenges and to appeal to an ever-changing client base, innovative and locally relevant extension and outreach programs have been devised to engage and educate growers. This article describes some of these programs that extend beyond previous traditional programs to connect growers with IWM. Keywords: Demonstrations, Experiential learning, Grower competition, Outreach, Practitioner networks.

Documenting ancient plant management in the northwest of North AmericaThis paper was submitted for the Special Issue on Ethnobotany, inspired by the Ethnobotany Symposium organized by Alain Cuerrier, Montréal Botanical Garden, and held in Montréal at the 2006 annual meeting of the Canadian Botanical Association.

Botany ◽  
2008 ◽  
Vol 86 (2) ◽  
pp. 129-145 ◽  
Author(s):  
Dana Lepofsky ◽  
Ken Lertzman
Keyword(s):  
First Nations ◽  
Management Practices ◽  
Prescribed Burning ◽  
Management Strategies ◽  
Botanical Garden ◽  
Plant Management ◽  
Special Issue ◽  
Definitive Evidence ◽  
European Contact ◽  
Lines Of Evidence

Ethnographic literature documents the pervasiveness of plant-management strategies, such as prescribed burning and other kinds of cultivation, among Northwest Peoples after European contact. In contrast, definitive evidence of precontact plant management has been elusive. Documenting the nature and extent of precontact plant-management strategies has relevance to historians, archaeologists, managers, conservationists, forest ecologists, and First Nations. In this paper, we summarize the various lines of evidence that have been, or could be, used to document ancient cultivation in the northwest of North America. We organize this discussion by the ecological consequences of ancient plant-management practices and their documented or potential visibility in the paleo-, neo-ecological, and archaeological records. Our review demonstrates that while finding evidence of ancient plant management can be difficult, such evidence can be found when innovative research methods are applied. Further, when various independent lines of evidence are compiled, reconstructions of past plant-management strategies are strengthened considerably.

Fatigue Monitoring and Management across Different Industries

2016 ◽  
Vol 60 (1) ◽  
pp. 993-996 ◽  
Author(s):  
Ranjana K. Mehta ◽  
S. Camille Peres ◽  
Linsey M. Steege ◽  
Jim R. Potvin ◽  
Mike Wahl ◽  
...  
Keyword(s):  
Risk Factor ◽  
Management Practices ◽  
Oil And Gas ◽  
Physiological State ◽  
Work Conditions ◽  
Severe Injuries ◽  
Circadian Phase ◽  
Current State ◽  
Fatigue Monitoring ◽  
Performance Capability

Fatigue, often defined as a physiological state of reduced mental or physical performance capability resulting from sleep loss, circadian phase, or workload (physical or cognitive), has been implicated as a critical risk factor resulting in severe injuries and accidents. A great deal of research has been done into the identification, measurement, and management of fatigue, however it is still poorly understood. This may be due to the characteristics and variability of work conditions across different industries; for example, fatigue in manufacturing is largely related to physical demands, and in aviation fatigue is related to sleep and shift-work. This panel will comprise of academics and practitioners across manufacturing, healthcare, transportation, aviation, and oil and gas industries. Topics covered within each industry will include fatigue causes and consequences, existing fatigue monitoring/management practices, barriers to fatigue monitoring and management, and recommendations/discussions around improving the current state.

scholarly journals Mitigación de daños provocados por fauna silvestre en cultivos agrícolas en un bosque montano de Bolivia

2014 ◽  
Vol 62 (4) ◽  
pp. 1495 ◽  
Author(s):  
Eddy Pérez L. ◽  
Luis F. Pacheco
Keyword(s):  
Management Practices ◽  
Integrated Management ◽  
Management Strategies ◽  
Species Conservation ◽  
Agricultural Practices ◽  
Dasypus Novemcinctus ◽  
Natural Area ◽  
Rural People ◽  
Sapajus Apella ◽  
Pecari Tajacu

<p>Wildlife is often blamed for causing damage to human activities, including agricultural practices and the result may be a conflict between human interests and species conservation. A formal assessment of the magnitude of damage is necessary to adequately conduct management practices and an assessment of the efficiency of different management practices, is necessary to enable managers to mitigate the conflict with rural people. This study was carried out to evaluate the effectiveness of agricultural management practices and controlled hunting in reducing damage to subsistence annual crops at the Cotapata National Park and Natural Area of Integrated Management. The design included seven fields with modified agricultural practices, four fields subjected to control hunting, and five fields held as controls. We registered cultivar type, density, frequency of visiting species to the field, crops lost to wildlife, species responsible for damage, and crop biomass. Most frequent species in the fields were <em>Dasyprocta punctata</em> and <em>Dasypus novemcinctus</em>. Hunted plots were visited 1.6 times more frequently than agriculturally managed plots. Crop lost to wildlife averaged 7.28% at agriculturally managed plots, 4.59% in plots subjected to hunting, and 27.61% in control plots. Species mainly responsible for damage were <em>Pecari tajacu</em>, <em>D. punctata, </em>and <em>Sapajus apella</em>. We concluded that both management strategies were effective to reduce damage by &gt;50% as compared to unmanaged crop plots.</p><p><strong> </strong></p>

scholarly journals Human impacts on the environment and wildlife in California’s past: Lessons from California archaeology

2021 ◽  
Vol 107 (3) ◽  
pp. 295-319
Author(s):  
Julia Renee Prince-Buitenhuys ◽  
Colleen M. Cheverko ◽  
Eric J. Bartelink ◽  
Veronica Wunderlich ◽  
Kristina Crawford
Keyword(s):  
Human Health ◽  
Wildlife Management ◽  
Management Practices ◽  
Niche Construction ◽  
Human Impacts ◽  
Natural Habitats ◽  
Central California ◽  
European Contact ◽  
Human Niche Construction ◽  
Ecological Baselines

The long history of human-animal interactions in California prior to European contact is frequently not considered when setting ecological baselines and, by consequence, when planning conservation and management expectations and strategies for native species. This article reviews archaeological perspectives that explore the relationship between human niche construction, plant and wildlife populations, and human health in pre-European contact Central California, with an emphasis on the Central Valley and Delta, the surrounding foothills, and the San Francisco Bay Area. A summary of the archaeological record for Central California is provided, along with how niche construction and related evolutionary based models have been used in prehistoric California. Examples of the influences of human niche construction on flora, fauna, and human health from the archaeological and ethnographic record are then discussed. This information is tied to modern wildlife research and management practices that would serve contemporary fish and wildlife management given that human influences on species “natural” habitats and ecological baselines extends much further into the past than current ecological baselines and wildlife management strategies traditionally recognize.

Sign in / Sign up

Export Citation Format

Share Document