scholarly journals Long-Term Demographic and Spatio-Temporal Trends of Indo-Pacific Bottlenose Dolphin (Tursiops aduncus) Bycatch in Bather Protection Nets off KwaZulu-Natal, South Africa

2020 ◽  
Vol 7 ◽  
Author(s):  
Stephanie Plön ◽  
Christine Erbe ◽  
Sabine Wintner
Keyword(s):  
South Africa ◽  
Bottlenose Dolphin ◽  
Bottlenose Dolphins ◽  
Temporal Trends ◽  
Long Term Effects ◽  
Annual Fluctuation ◽  
Tursiops Aduncus ◽  
Kwazulu Natal ◽  
The Impact

Bather protection nets have been in place off the coast of KwaZulu-Natal (KZN), South Africa, since the 1950’s. Besides sharks, they also catch a number of other marine vertebrates, including dolphins, the majority of which are Indo-Pacific bottlenose dolphins Tursiops aduncus. Previous analyses of dolphin bycatch in the nets indicated the potential impacts on the local populations, but a lack of information on population structure has to-date hindered a more detailed assessment. A recent re-assessment of the status and population delineations of T. aduncus off South Africa prompted a re-examination of demographic, spatial, and temporal patterns of its catches in bather protection nets over a 36-year period (January 1980 to December 2015). In total, 1169 dolphins were caught, including a slightly greater number of females and juveniles than other sex-classes, raising concern about the potential long-term effects on population demographics. More dolphins were caught off the North than the South coast. Temporal trends indicate that the bycatch during June and July every year (peak Sardine Run period) as a percentage of overall dolphin bycatch has been steadily decreasing from 39.8% in 1980 to 13% in 2015. A large inter-annual fluctuation can be seen, probably as a result of the inter-annual intensity of the Sardine Run. Although our results do not indicate a long-term decline of the individual populations as previously predicted, revised abundance estimates and data on the demographics and movement patterns of the animals are urgently required to accurately assess the impact of bycatch on the Indo-Pacific bottlenose dolphin populations off KZN and to advise conservation and management decisions going forward.

The Impact of COVID-19 on Safari Lodges in Northern KwaZulu-Natal, South Africa

2021 ◽  
Vol 10 (10(5)) ◽  
pp. 1683-1694
Author(s):  
Gustav Visser ◽  
Maryke Marais
Keyword(s):  
South Africa ◽  
Coping Mechanisms ◽  
Disposable Income ◽  
Snowball Sampling ◽  
South Africans ◽  
Kwazulu Natal ◽  
Low Levels ◽  
The Impact ◽  
Structured Questionnaire

This investigation explores the impacts of COVID-19 on safari lodge operators in the northern districts of Zululand and uMkhanyakude in KwaZulu-Natal, South Africa. The area in which these lodges are located is a renowned leading safari lodge destination. This investigation is structured into four core sections. Firstly, brief insights into current debates concerning the influence of COVID-19 on tourism generally are provided. Secondly, the impact of COVID-19 on visitor profiles of safari lodges is analysed. Thirdly, the impact of COVID-19 on the functioning and operations of these safari lodges is examined. Fourthly and finally, the coping mechanisms implemented by the safari lodges are presented. The research deployed snowball sampling and conducted in-person interviews using a semi-structured questionnaire. The study reveals that this tourism subsector, like other tourism subsectors globally, suffered greatly as a result of COVID-19. Various adjustments to its operations had to be implemented in order to survive. These adjustments included scaling back operations, cutting costs wherever possible and drastically reducing staff. Additionally, many lodges tried to compensate for a lack of incoming international tourists by attracting local tourists by offering deep discounts. However, low levels of disposable income among South Africans means that this is not a long-term sustainable strategy. Future uncertainty was a key concern for safari lodge operations.

Immediate response of Atlantic bottlenose dolphins to high-speed personal watercraft in the Mississippi Sound

2008 ◽  
Vol 88 (6) ◽  
pp. 1139-1143 ◽  
Author(s):  
Lance J. Miller ◽  
Moby Solangi ◽  
Stan A. Kuczaj
Keyword(s):  
Marine Mammals ◽  
High Speed ◽  
Bottlenose Dolphins ◽  
Well Being ◽  
Anthropogenic Factors ◽  
Long Term Effects ◽  
Mississippi Sound ◽  
Personal Watercraft ◽  
The Impact

Measuring the impact of anthropogenic factors on marine mammals is critical to the conservation of these species. Recently, the effect of personal watercraft on marine mammal behaviour and well-being has become a topic of increasing concern. The purpose of this study was to examine the immediate effects of high-speed personal watercraft on Atlantic bottlenose dolphin (Tursiops truncatus) behaviour. Opportunistic surveys were conducted from a research vessel in the Mississippi Sound (30º13′22.6″N 89º01′36.5″W) from September 2003 through to August 2005. The passing of a high-speed personal watercraft significantly increased dolphin dive duration, dolphin group cohesion and dolphin breathing synchrony. Additionally, in 47% of the encounters a dolphin group's behaviour changed within one minute of the presence of a high-speed personal watercraft. The most notable changes were an increase in dolphin travelling behaviour and a decrease in feeding behaviour following the boat's presence. The results demonstrated an immediate, short-term change in dolphin behaviour, suggesting that an increase in the frequency of high-speed personal watercraft in this area could produce long-term detrimental effects. Research on the long-term effects of boat traffic on marine mammals is clearly needed to assess and hopefully mediate any potential long-term effects.

SUMBER-SUMBER RESILIENSI PADA REMAJA AKHIR YANG MENGALAMI KEKERASAN DARI ORANGTUA PADA MASA KANAK-KANAK

Psibernetika ◽  
2018 ◽  
Vol 11 (1) ◽  
Author(s):  
Devina Calista ◽  
Garvin Garvin
Keyword(s):  
Late Adolescents ◽  
Long Term Effects ◽  
Short Term ◽  
Parental Affection ◽  
Resilience Factors ◽  
Childhood Violence ◽  
Past Experiences ◽  
The Impact ◽  
Depth Interviews

<p><em>Child abuse by parents is common in households. The impact of violence on children will bring short-term effects and long-term effects that can be attributed to their various emotional, behavioral and social problems in the future; especially in late adolescence that will enter adulthood. Resilience factors increase the likelihood that adolescents who are victims of childhood violence recover from their past experiences</em><em>,</em><em> become more powerful individuals and have a better life. The purpose of this study was to determine the source of resilience in late adolescents who experienced violence from parents in their childhood. This research uses qualitative research methods with in-depth interviews as a method of data collection. The result shows that the three research participants have the aspects of "I Have", "I Am", and "I Can"; a participant has "I Can" aspects as a source of resilience, and one other subject has no source of resilience. The study concluded that parental affection and acceptance of the past experience have role to the three sources of resilience (I Have, I Am, and I Can)</em></p><p><em> </em></p><p><strong><em>Keyword : </em></strong><em>Resilience, adolescence, violence, parents</em></p>

The Quantification of Structural Reforms in OECD Countries

2018 ◽  
Author(s):  
Balázs Égert ◽  
Peter Gal
Keyword(s):  
Product Market ◽  
Physical Capital ◽  
Oecd Countries ◽  
Market Regulation ◽  
Structural Reforms ◽  
Long Term Effects ◽  
Per Capita ◽  
Product Market Regulation ◽  
The Impact

This chapter describes and discusses a new supply-side framework that quantifies the impact of structural reforms on per capita income in OECD countries. It presents the overall macroeconomic impacts of reforms by aggregating over the effects on physical capital, employment, and productivity through a production function. On the basis of reforms defined as observed changes in policies, the chapter finds that product market regulation has the largest overall single policy impact five years after the reforms. But the combined impact of all labour market policies is considerably larger than that of product market regulation. The paper also shows that policy impacts can differ at different horizons. The overall long-term effects on GDP per capita of policies transiting through capital deepening can be considerably larger than the five- to ten-year impacts. By contrast, the long-term impact of policies coming only via the employment rate channel materializes at a shorter horizon.

scholarly journals Antibiotics at birth and later antibiotic courses: effects on gut microbiota

2021 ◽  
Author(s):  
Sofia Ainonen ◽  
Mysore V Tejesvi ◽  
Md. Rayhan Mahmud ◽  
Niko Paalanne ◽  
Tytti Pokka ◽  
...  
Keyword(s):  
Gut Microbiota ◽  
Control Group ◽  
List Type ◽  
Antibiotic Exposure ◽  
Microbiota Composition ◽  
Long Term Effects ◽  
The Impact ◽  
Antibiotic Courses ◽  
Gut Microbiota Composition

Abstract Background Intrapartum antibiotic prophylaxis (IAP) is widely used, but the evidence of the long-term effects on the gut microbiota and subsequent health of children is limited. Here, we compared the impacts of perinatal antibiotic exposure and later courses of antibiotic courses on gut microbiota. Methods This was a prospective, controlled cohort study among 100 vaginally delivered infants with different perinatal antibiotic exposures: control (27), IAP (27), postnatal antibiotics (24), and IAP and postnatal antibiotics (22). At 1 year of age, we performed next-generation sequencing of the bacterial 16S ribosomal RNA gene of fecal samples. Results Exposure to the perinatal antibiotics had a clear impact on the gut microbiota. The abundance of the Bacteroidetes phylum was significantly higher in the control group, whereas the relative abundance of Escherichia coli was significantly lower in the control group. The impact of the perinatal antibiotics on the gut microbiota composition was greater than exposure to later courses of antibiotics (28% of participants). Conclusions Perinatal antibiotic exposure had a marked impact on the gut microbiota at the age of 1 year. The timing of the antibiotic exposure appears to be the critical factor for the changes observed in the gut microbiota. Impact Infants are commonly exposed to IAP and postnatal antibiotics, and later to courses of antibiotics during the first year of life. Perinatal antibiotics have been associated with an altered gut microbiota during the first months of life, whereas the evidence regarding the long-term impact is more limited. Perinatal antibiotic exposure had a marked impact on the infant’s gut microbiota at 1 year of age. Impact of the perinatal antibiotics on the gut microbiota composition was greater than that of the later courses of antibiotics at the age of 1 year.

Parental alienation: the impact on men’s mental health

2015 ◽  
Vol 29 (3) ◽  
Author(s):  
Leo Sher
Keyword(s):  
Mental Health ◽  
Separation Anxiety ◽  
Self Esteem ◽  
Long Term Effects ◽  
Parental Alienation ◽  
Adult Men ◽  
Self Confidence ◽  
High Conflict ◽  
The Impact

Abstract Parental alienation is defined as a mental state in which a child, usually one whose parents are engaged in a high-conflict separation or divorce, allies himself strongly with one parent (the preferred parent) and rejects a relationship with the other parent (the alienated parent) without legitimate justification. Parental alienation may affect men’s mental health: a) parental alienation negatively influences mental health of male children and adolescents who are victims of parental alienation. Alienated children/adolescents display guilt, sadness, and depressed mood; low self-esteem and lack of self-confidence; distress and frustration; lack of impulse control, substance abuse and delinquent behavior; separation anxiety, fears and phobias; hypochondria and increased tendency to develop psychosomatic illness; suicidal ideation and suicide attempt; sleep and eating disorders; educational problems; enuresis and encopresis; b) parental alienation negatively affects the mental health of adult men who were victims of parental alienation when they were children and/or adolescents. Long-term effects of parental alienation include low self-esteem, depression, drug/alcohol abuse, lack of trust, alienation from own children, divorce, problems with identity and not having a sense of belonging or roots, choosing not to have children to avoid being rejected by them, low achievement, anger and bitterness over the time lost with the alienated parent; c) parental alienation negatively influences mental health of men who are alienated from their children. Fathers who have lost some or all contact with their children for months or years following separation or divorce may be depressed and suicidal.

The impact of life skills education on adolescent sexual risk behaviors in KwaZulu-Natal, South Africa

2005 ◽  
Vol 36 (4) ◽  
pp. 289-304 ◽  
Author(s):  
Robert Magnani ◽  
Kate MacIntyre ◽  
Ali Mehyrar Karim ◽  
Lisanne Brown ◽  
Paul Hutchinson ◽  
...  
Keyword(s):  
South Africa ◽  
Sexual Risk ◽  
Risk Behaviors ◽  
Life Skills ◽  
Sexual Risk Behaviors ◽  
Kwazulu Natal ◽  
Adolescent Sexual Risk ◽  
Skills Education ◽  
The Impact ◽  
Life Skills Education

scholarly journals Cancer Care and Survivorship Planning: Promises and Challenges

2009 ◽  
Vol 5 (3) ◽  
pp. 116-118 ◽  
Author(s):  
Len Lichtenfeld
Keyword(s):  
Cancer Care ◽  
Long Term Effects ◽  
Cancer Treatments ◽  
The Impact

Although we have made some progress in understanding long-term effects of some cancer treatments, there is still much more to learn about the impact of our treatments on our patients.

Quantifying the impact of foliar insects on two Eucalyptus hybrids in Zululand, northern KwaZulu-Natal, South Africa

2018 ◽  
Vol 36 (2) ◽  
pp. 129-135
Author(s):  
Lindokuhle S Dlamini ◽  
Keith M Little ◽  
Benice Sivparsad ◽  
Ryan Nadel
Keyword(s):  
South Africa ◽  
Kwazulu Natal ◽  
The Impact
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