scholarly journals Evaluating the impact of climate and demographic variation on future prospects for fish stocks: An Application for northern rock sole in Alaska

2021 ◽  
pp. 104951
Author(s):  
André E. Punt ◽  
Michael G. Dalton ◽  
Wei Cheng ◽  
Albert J. Hermann ◽  
Kirstin K. Holsman ◽  
...  
Keyword(s):  
Future Prospects ◽  
Fish Stocks ◽  
The Impact ◽  
Demographic Variation

scholarly journals The impact of alternative rebuilding strategies to rebuild overfished stocks

2016 ◽  
Vol 73 (9) ◽  
pp. 2190-2207 ◽  
Author(s):  
Chantel R. Wetzel ◽  
André E. Punt ◽  
Keyword(s):  
West Coast ◽  
Life Histories ◽  
Estimation Error ◽  
The United States ◽  
Fish Stocks ◽  
Strategy Evaluation ◽  
The Us ◽  
History Of ◽  
The Impact ◽  
Us West

Abstract Ending overfishing and rebuilding fish stocks to levels that provide for optimum sustainable yield is a concern for fisheries management worldwide. In the United States, fisheries managers are legally mandated to end overfishing and to implement rebuilding plans for fish stocks that fall below minimum stock size thresholds. Rebuilding plans should lead to recovery to target stock sizes within 10 years, except in situations where the life history of the stock or environmental conditions dictate otherwise. Federally managed groundfish species along the US West Coast have diverse life histories where some are able to rebuild quickly from overfished status, while others, specifically rockfish (Sebastes spp.), may require decades for rebuilding. A management strategy evaluation which assumed limited estimation error was conducted to evaluate the performance of alternative strategies for rebuilding overfished stocks for these alternative US West Coast life histories. Generally, the results highlight the trade-off between the reduction of catches during rebuilding vs. the length of rebuilding. The most precautionary rebuilding plans requiring the greatest harvest reduction resulted in higher average catches over the entire projection period compared with strategies that required a longer rebuilding period with less of a reduction in rebuilding catch. Attempting to maintain a 50% probability of rebuilding was the poorest performing rebuilding strategy for all life histories, resulting in a large number of changes to the rebuilding plan, increased frequency of failing to meet rebuilding targets, and higher variation in catch. The rebuilding plans that implemented a higher initial rebuilding probability (≥60%) for determining rebuilding fishing mortality and targets generally resulted in fewer changes to the rebuilding plans and rebuilt by the target rebuilding year, particularly for stocks with the longer rebuilding plans (e.g. rockfishes).

The Scottish Conservatives and Europe: The Reluctant Brexit Party

2020 ◽  
pp. 169-181
Author(s):  
Anthony Salamone
Keyword(s):  
European Union ◽  
Conservative Party ◽  
Political Context ◽  
The European Union ◽  
House Of Commons ◽  
Future Prospects ◽  
Four Dimensions ◽  
The Uk ◽  
The Impact ◽  
The Eu

As Scottish Conservative leader, Ruth Davidson was a prominent campaigner for a ‘Remain’ vote in the European Union referendum of June 2016. Following the 2017 general election, meanwhile, Davidson repositioned herself as someone who could – aided by 13 Scottish Tory MPs in the House of Commons – influence the Brexit negotiations and nudge the UK Conservative Party towards a ‘soft’ rather than ‘hard’ deal with the EU. This chapter considers the impact of Brexit on the Scottish Conservatives during the leadership of Ruth Davidson in four dimensions: Brexit’s distinct Scottish political context, its electoral consequences, the conduct of Brexit within the UK, and the Brexit negotiations themselves. It concludes with reflections on the future prospects for the Scottish party in light of all four dimensions.

scholarly journals Où en est la situation de la violence envers les femmes dans le milieu familial, dix ans après les colloques sur la violence ?

Criminologie ◽  
2005 ◽  
Vol 23 (2) ◽  
pp. 23-45 ◽  
Author(s):  
Ginette Larouche ◽  
Louise Gagné
Keyword(s):  
Risk Factors ◽  
Public Services ◽  
Point Of View ◽  
Future Prospects ◽  
The Impact

The article presents the situation regarding violence to women for the region of Montreal. The nature and extent of the problem is examined and the risk factors are dealt with from a multidimensional point of view. The community and para-public services associated with this problem are described briefly and an account is given of the impact of past and present action. Some future prospects are also introduced.

scholarly journals Estimating the mortality caused by great cormorant predation on fish stocks: pikeperch in the Archipelago Sea, northern Baltic Sea, as an example

2016 ◽  
Vol 73 (1) ◽  
pp. 84-93 ◽  
Author(s):  
Outi Heikinheimo ◽  
Pekka Rusanen ◽  
Katja Korhonen
Keyword(s):  
Age Groups ◽  
Total Mortality ◽  
Sensitivity Analyses ◽  
Fish Stock ◽  
Great Cormorant ◽  
Phalacrocorax Carbo ◽  
Fish Stocks ◽  
Archipelago Sea ◽  
Phalacrocorax Carbo Sinensis ◽  
The Impact

Estimates of the mortality rates caused by cormorants are needed to assess the impact on fish stock dynamics and fisheries. In this study, we calculated the annual instantaneous mortality caused by great cormorants (Phalacrocorax carbo sinensis) on young pikeperch (Sander lucioperca), using data from Archipelago Sea, southwestern coast of Finland. The pikeperch are vulnerable to cormorant predation mainly at the ages 2–4. The annual instantaneous mortality caused by cormorants was between 0.04 and 0.13, and the estimated effect on the pikeperch stock size at recruitment to the fishery ranged from 4% to 23%, respectively. The average annual cormorant-induced mortality accounted for 5%–34% of the total mortality in these age groups. The sensitivity analyses proved that the rates of mortality from other sources largely affect the estimated mortality from cormorant predation. In cases with strong fluctuations in the abundance of the prey fish stocks, ignoring the size and density dependence of the natural mortality may lead to overestimation of the importance of cormorants as competitors of fisheries.

scholarly journals COVID-19: impact on the mental health of university students

2021 ◽  
Vol 8 (10) ◽  
pp. 4891
Author(s):  
Priyanka Aswal ◽  
Parvesh Singh
Keyword(s):  
Mental Health ◽  
Psychological Health ◽  
Negative Impact ◽  
Well Being ◽  
Mental Illnesses ◽  
Future Prospects ◽  
Entire Country ◽  
The Impact ◽  
Mental Well Being ◽  
Detrimental Impact

Background: Ever since the outbreak of the covid-19 pandemic, education institutions in the entire country were shut down. This shutdown of universities caused the students to stay at home which caused a detrimental impact on their mental health.Methods: This survey-based study aims to decipher the impact the lockdown has caused on the mental well-being of the students. The survey was conducted through a set of online questionnaires.Results: The results of the study show that the students suffered from various psychological problems. Anxiety and stress were the most prevalent amongst mental illnesses and were reportedly increased due to uncertainty about future prospects like job and graduation.Conclusions: The study confirms that the pandemic has had a negative impact on the psychological health of the patients and has amplified stress and fear amongst them. 

scholarly journals Black Pepper in Malaysia: An Overview and Future Prospects

2019 ◽  
Vol 40 (04) ◽  
Author(s):  
A H Izzah ◽  
W.Y Wan Asrina
Keyword(s):  
Precision Agriculture ◽  
Soil Degradation ◽  
Crop Production ◽  
Black Pepper ◽  
Limiting Factors ◽  
Future Prospects ◽  
South Indian ◽  
Dominant Soil ◽  
East Malaysia ◽  
The Impact

Cultivating black pepper in Malaysia started in early 10th to the 11th century when the South Indian Kings began to extend their empire. The crop was brought to East Malaysia in 1840 by Chinese settlers, actively planted until it was hit by the massive flood, fluctuation of the price and outbreak of foot rot. High yielding cultivars such as Kuching, Semenggok Emas and Semenggok Aman provided promise for better production, but resulted in increased soil degradation and reduced crop growth in Sarawak. The paper aims to discuss the black pepper industry in Sarawak and present scenario of its cultivation including future prospects. Cultivating on hilly topography with coarse textured dominant soil becomes one of the limiting factors. This factor is observed due to high rainfall intensity and steeper slopes. Neglected soil conservation also affects crop production and lead to a lower return on investments. Technologies such as land conservation and practising precision agriculture need to be adopted to reduce the impact of soil degradation and better production.

Targeted therapy for epithelial ovarian cancer: Current status and future prospects

2003 ◽  
Vol 13 (6) ◽  
pp. 701-734 ◽  
Author(s):  
H. T. See ◽  
J. J. Kavanagh ◽  
W. Hu ◽  
R. C. Bast
Keyword(s):  
Ovarian Cancer ◽  
Molecular Targets ◽  
Current Status ◽  
Cell Cycle Regulators ◽  
Future Prospects ◽  
Small Molecular Weight ◽  
The Past ◽  
Long Run ◽  
The Impact

Despite advances in surgery and chemotherapy, less than 20% of patients with stage III or IV ovarian cancer survive long-term. In the past, cytotoxic regimens have been developed empirically, combining active agents at maximally tolerated doses, often without a clear rationale for their interaction. Advances in understanding the biology of ovarian cancer have identified multiple molecular targets that differ in normal and malignant cells. Targets include cell cycle regulators, growth factor receptors, signal transduction pathways, molecules that confer drug resistance, and angiogenic mechanisms. A number of targeted agents have entered clinical trials. Small molecular weight inhibitors, monoclonal antibodies, and antisense and gene therapy are all being evaluated alone and in combination with cytotoxic drugs. In contrast to earlier studies, the impact of each agent on the designated target can be assessed and agents can be matched to the genotype and phenotype of malignant and normal cells. In the long run, this should facilitate individualization of more effective, less toxic therapy for women with ovarian cancer.

Ocean Recovery

2019 ◽  
Author(s):  
Ray Hilborn ◽  
Ulrike Hilborn
Keyword(s):  
Fisheries Management ◽  
Marine Ecosystems ◽  
Popular Media ◽  
Fish Stock ◽  
General Audience ◽  
Fish Stocks ◽  
The Status ◽  
Comprehensive Survey ◽  
Graduate Seminars ◽  
The Impact

Over the last 2 decades, the scientific and popular media have been bombarded by gloom-and-doom stories on the future of fisheries, the status of fish stocks, and the impact of fishing on marine ecosystems. Dozens of certification and labeling schemes have emerged to advise consumers on what seafood is sustainable. In recent years, an opposing narrative has emerged emphasizing the success of fisheries management in many places, the increasing abundance of fish stocks in those places, and the prescription for sustainable fisheries. However, there has been no comprehensive survey of what really constitutes sustainability in fisheries, fish stock status, success and failures of management, and consideration of the impacts of fishing on marine ecosystems. This book will explore very different perspectives on sustainability and bring together the data from a large number of studies to show where fish stocks are increasing, where they are declining, the consequences of alternative fisheries management regimes, and what is known about a range of fisheries issues such as the impacts of trawling on marine ecosystems. Aimed principally at a general audience that is already interested in fisheries but seeks both a deeper understanding of what is known about specific issues and an impartial presentation of all of the data rather than selected examples used to justify a particular perspective or agenda. It will also appeal to the scientific community eager to know more about marine fisheries and fishing data, and serve as the basis for graduate seminars on the sustainability of natural resources.

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