scholarly journals The perception of the issue of spawner harvesting in lakes by the owners and managers of the entities authorised to commercial and reacreational fisheries management

2021 ◽  
Vol 29 (3) ◽  
pp. 135-147
Author(s):  
Marek Trella ◽  
Arkadiusz Wołos

Abstract In recent years, the issue of spawner harvesting has been frequently addressed by different groups of stakeholders involved in the exploitation of fish resources. The increasingly numerous angling circles, which use these resources recreationally, question the current rules of fish stocking management in Poland, and its legal and economic status has become the focus of scientists’ interest. The aim of the study was to present and discuss the results of a questionnaire survey addressed to managers and owners of lake fisheries entities in order to identify the determinants of fisheries management related to spawner harvesting. Questionnaires were collected from a total of 76 entities, and concerned 1921 lakes with a total area of 174,078 ha, which accounts for more than 64% of the total area of lakes used for fishing and angling purposes in Poland. The paper presents inter alia the occupational characteristics of the respondents; their positions on the effect of spawner harvesting on lake ecosystem, environmental protection, and social factors; anglers’ assessments of spawner harvesting; the actual and potential methods for regulating this harvesting; and the negative and positive effects of the introduction of a prohibition on this harvesting. The results show that the respondents under study generally do not see the need for the introduction of additional (except those already in place) regulations concerning spawner harvesting, most of them notice the adverse effects of their introduction, but they are also aware of the possible changes and their impact on management.

1988 ◽  
Vol 3 (2) ◽  
pp. 125-130
Author(s):  
D.M. Dieterle ◽  
M. Ackenheil ◽  
H.P. Kapfhammer ◽  
F. Müller-Spahn

RésuméZotepine was studied in 15 schizophrenic patients over a period of 28 days with regard to its antipsychotic efficacy, effect on negative schizophrenic symptoms, tolerability and adverse effects. Nine patients received Zotepine in a high dosage of 230 mg/die±52 mg, 6 patients in a low dosage of 168 mg/die ± 18 mg. Two patients receiving the high dosage dropped out after 21 days because of worsening of symptomatology and suicide attempts. Zotepine had rapid antipsychotic effects with sedative properties during the initial days of treatment. Minimal adverse effects and extra-pyramidal motor disturbances as well as dose-dependent positive effects on negative schizophrenie symptoms were found.


Author(s):  
Małgorzata Paprocka-Borowicz ◽  
Mona Wiatr ◽  
Maria Ciałowicz ◽  
Wojciech Borowicz ◽  
Agnieszka Kaczmarek ◽  
...  

Stroke is a high-risk factor for depression. Neurological rehabilitation is greatly difficult and often does not include treatment of depression. The post-stroke depression plays an important role in the progress of treatment, health, and the life of the patient. The appropriate treatment of depression could improve the quality of life of the patient and their family. The study aimed to evaluate the impact of physical activity and socio-economic status of the patient on the effectiveness of recovery from depression and the severity of the symptoms of depression. The study was conducted with 40 patients after stroke aged 42–82 years, and included 10 women and 30 men who were hospitalized for two weeks. The severity of depression/anxiety (D/A) symptoms were evaluated two times; at admission and after two weeks of physical therapy. The hospital anxiety and depression scale (HADS) questionnaire was used for this purpose. Socio-economic status was evaluated by several simple questions. It was revealed that physical therapy has a positive influence on mental state. The severity of D/A symptoms after stroke is related to the financial status of the patients (2 = 11.198, p = 0.024). The state of health (2 = 20.57, p = 0.022) and physical fitness (2 = 12.95, p = 0.044) changed the severity of symptoms of anxiety and depressive disorders. The kinesiotherapy in the group of patients with post-stroke depression had positive effects; however, economic and health conditions may influence the prognosis of the disease.


2021 ◽  
Vol 13 (12) ◽  
pp. 6808
Author(s):  
Yuxi Luo ◽  
Zhaohua Zhang ◽  
Jun Zheng ◽  
Diane Hite

Place-based policies refer to government efforts to enhance the economic performance of an area within its jurisdiction. Applying various difference in differences strategies, this study evaluates the neighborhood effects of a place-based policy—the Economic Development Priority Areas (EDPA) of Atlanta, Georgia, USA. Since the census block groups are locally defined and the boundaries may change over time, we defined the neighborhoods by creating a set of 0.25-mile- diameter circles evenly distributed across Atlanta, and used the created buffers as the comparison unit. The empirical estimates showed that EDPA designation significantly reduced poverty rate and increased housing price of EDPA neighborhoods but had no beneficial effects on population size and employment rate. The heterogeneous analysis with respect to different initial economic status of the neighborhoods showed a relative larger and significant effect of EDPA designation on low-income neighborhoods. The increasing labor demand induced by EDPA designation in low-income neighborhoods attracted more population to migrate in and put upward pressure on housing prices. The estimation results are robust when replacing the 0.25-mile-diameter circle neighborhoods with 0.5-mile-diameter circle neighborhoods. Although we found some positive effects of the EDPA program in Atlanta, it would be misguided to assume similar effects occur in other areas implementing place-based policies.


1984 ◽  
Vol 41 (9) ◽  
pp. 1393-1406 ◽  
Author(s):  
M. C. Healey

This paper reviews the origin and operational definition of the optimum yield (OY) concept and demonstrates how techniques of decision analysis can provide an analytical model for OY. The concept of OY was formalized as the guiding principle of fisheries management in the United States and Canada in 1976. The policies of both countries make it clear that a wide range of biological, economic, and social factors are to be taken into account in determining OY. Confusion exists, however, about precisely which of these factors should determine OY in any fishery and what is their relative importance. Uncertainty also exists about how to take biological, economic, and social factors jointly into account as the concept of OY implies one must. Established biological and economic models in fisheries are not adequate for such an analysis because their focus is single- rather than multi-objective. Operational techniques of decision analysis, such as multiattribute utility analysis, are specifically designed to deal with multiobjective problems like OY. I propose that a simple, linear, utility model be used to assess the optimality of alternative yield strategies in fisheries management. I illustrate the application of the model by assessing OY options in the New England herring (Clupea harengus) fishery and the Skeena River salmon (Oncorhynchus spp.) fishery. The advantages of the model are that it is simple and intuitively appealing, that it permits a wide range of types and qualities of data to be incorporated into the evaluation of management options, that it is amenable to sensitivity analysis, and that it is adaptable to a variety of decision rules.


2016 ◽  
Vol 8 (1) ◽  
pp. 21
Author(s):  
Selvi Oktaviyani ◽  
Mennofatria Boer ◽  
Yonvitner Yonvitner

<p>Ikan kurisi (<em>Nemipterus japonicus</em>) merupakan salah satu sumber daya ikan ekonomis penting di Perairan Teluk Banten dan banyak didaratkan di Pelabuhan Perikanan Nusantara (PPN) Karangantu, Banten. Intensitas penangkapan yang tinggi akan menyebabkan tangkap lebih (<em>overfishing</em>), sehingga mengancam kelestarian ikan kurisi. Penelitian ini bertujuan untuk mengetahui beberapa aspek biologi ikan kurisi di Perairan Teluk Banten, seperti struktur ukuran panjang, rasio kelamin, hubungan panjang berat, tingkat kematangan gonad, ukuran panjang rata-rata tertangkap (Lc) dan ukuran pertama kali matang gonad (Lm). Informasi yang diperoleh dapat menjadi bahan pertimbangan dalam kegiatan pengelolaan perikanan. Lokasi pengambilan contoh dilakukan di Pelabuhan Perikanan Nusantara (PPN) Karangantu, Banten dari bulan Mei hingga Agustus 2012. Hasil penelitian menunjukkan bahwa ukuran panjang total ikan kurisi<em> </em>berkisar antara 98 dan 211 mm. Perbandingan kelamin jantan dan betina dalam keadaan seimbang dan memiliki pola pertumbuhan allometrik negatif yang menunjukkan pertumbuhan panjang lebih cepat dibandingkan pertumbuhan beratnya. Lebih dari 50% ikan-ikan yang diamati baik jantan maupun betina selama bulan pengamatan belum matang gonad (<em>immature</em>).  Ukuran pertama kali matang gonad adalah 196 mm sedangkan ukuran panjang rata-rata tertangkap adalah 146 mm. Banyaknya ikan yang tertangkap dalam ukuran kecil (kurang dari panjang pertama kali matang gonad) akan mengganggu kelestarian ikan kurisi.</p><p><em><br /></em></p><p><em>Japanese threadfin bream </em>(Nemipterus japonicus<span style="text-decoration: underline;">)</span><em> is one of the most important economical fish resources in the Gulf of Banten and many landed at Archipelago Fishing Port (PPN) of Karangantu. High intensity of fishing activity can cause an overfihing, and threat sustainability of japanese threadfin bream. The research was aimed to determine some biological aspects of japanese threadfin bream in the Gulf of Banten, such as structure of the length, sex ratio, length-weight relationship, gonad maturity stage, the average length of captured (Lc) and the length of first maturity (Lm). It is believed that the collected information can be taken into consideration in the fisheries management activities. The sample was collected at PPN Karangantu, Banten from May to August 2012. The result showed that the length of </em><em>this fish </em><em>ranged between 98 and 211 mm. Ratio of male and female is balance and have negative allometric growth pattern show that the length of growth is more faster than the weight of growth. More than 50% of fish sample both males and females were immature gonads. During observation, length of  first maturity was 196 mm and the average length of captured was 146 mm. </em><em>Many fishes caught was smaller than Lm, It will interfere the sustainability of japanese threadfin bream.</em></p>


2020 ◽  
Vol 6 (1) ◽  
pp. 26
Author(s):  
Ziaul Haq Nawawi ◽  
Natsir Nessa ◽  
Dewi Yanuarita ◽  
Muhammad Yusfi Yusuf ◽  
Sainal Sainal

The research aims to record the types of shark utilization in Selayar Islands Regency, explore the spread and shark status of the Regency of Selayar Islands, and examine the sustainability status of shark utilization by fisherman in Selayar Islands. The research method was based on the assessment of EAFM indicator assessments to assess the performance of shark resource management on Tarupa Island, Rajuni Island, Polassi Island and Kayuadi Island Selayar Islands Regency with an indicator approach involving two domains, i.e (1) Fish resources and (2) Fishing technique. The methods of obtaining the data were survey by extracting the data through interviews/questionnaire. The sample was determined using purposive sampling technique. The results of the research indicate that the status of utilizing shark fishery in Selayar Islands Regency is currently in medium category. The main issues indicated are a decrease in catch size and the catch of sharks that are not feasible to catch (50% of catch <Lm). The domains that need to get primary attention in the management of sharks fisheries are the domains of fish resources and fishing technique. The efforts of management carried out in each fields are based on central issues that emerge. Connectivity efforts between communities and institutions are needed to produce functional fisheries management status so that the sustainability of shark resources in Selayar Islands Regency can be sustainable


2021 ◽  
Vol 869 (1) ◽  
pp. 012001
Author(s):  
R Pramoda ◽  
B V Indahyanti ◽  
N Shafitri ◽  
A Zulham ◽  
S Koeshendrajana ◽  
...  

Abstract The existing fisheries management within the Indonesian Exclusive Economic Zone (EEZ) is based upon several regulations derived from international conventions, national regulations, as well as conventions mutually agreed by Regional Fisheries Management Organizations members, which is intended to ensure that fish resources in the EEZ area can be managed optimally and sustainably. The sole purpose of this qualitative research is to examine national and international policies that regulate fisheries management in the Indonesian EEZ waters. The analysis was carried out qualitatively with a normative juridical approach and then descriptively elaborated. The results showed that the national regulations issued by the government has already referred to the UNCLOS 1982 and WCPFC Conventions, but the implementation has been far from optimal due to the heaps of regulatory references. Therefore, it is of utmost importance that the government set its policies on setting up appropriate regulations and simplifying all national regulations governing fisheries management in the Indonesian EEZ into a single regulation. It is meant to avoid overlapping arrangements and facilitate a much better implementation.


Author(s):  
Manasvi Shrivastav ◽  
Anuradha Kotnala

Most superstition from the past have been proven by science as unnecessary, ineffective or just plain silly but are still practiced by normal intelligent people today. Around the world, there are many reappearing themes for superstition. Every country has its own localized take on each theme. In this article researcher reviews on previous researches. There is much different kind of researches in the field of superstition and there are different theories related to the origin of superstition. Superstition is influenced by different social and psychological factors. In this article those researches have been discussed which through light on social and psychological factors of superstition. Psychological factors like fear, locus of control, confidence level etc. and social factors such as locale, socio-economic status etc.


2016 ◽  
Vol 3 (4) ◽  
Author(s):  
Abhay Pratap Singh

Present study endeavored to investigate the role of child abuse, socio-economic status and age in creative development of children. A 2x3x3 factorial design with two groups (abused and non-abused), socio-economic status (High, Middle, Low) and three age group (Childs i.e., 6 – 10 Yrs., Preadolescents i.e., 11 – 14 Yrs. & Adolescents i.e., 15 – 18 Yrs.). A total of 90 children from Gorakhpur belonging to deferent strata of society participated as respondents. Child abuse checklist (Pandey, 2002) was used to determine various forms of abused and non-abused cases, and to determine the deferent forms of creativity in children, verbal and non-verbal tests of creative  thinking (Mehdi, 1973)  was also used. Results revealed that the level of creativity varied across different group of children. Moreover, abused children were found inferior on verbal fluency, verbal flexibility, elaboration N (picture), elaboration V (title), originality N (picture), and originality V (title) than non-abused children. Low SES children achieved poor on verbal related fluency, flexibility, originality as well as non-verbal related elaboration N (picture), elaboration V (title), originality N (picture), and originality V (title) than middle and high SES. Furthermore, Childs scored very poor on various dimensions of verbal and non-verbal creativity than pre-adolescents and adolescents respectively. Results have been discussed in the light of individual and social factors


2009 ◽  
Vol 15 (3) ◽  
pp. 6
Author(s):  
G Lippi ◽  
D J Smit ◽  
J C Jordaan ◽  
J L Roos

<p><strong>Objective:</strong> This study prospectively followed up, after a period of 20 years, a group of patients with schizophrenia who were considered to be at high risk for suicide. In Part 1, we reported on outcome and associated social factors, and in this paper we discuss re-evaluated suicide risk in these patients and investigated symptomology and pharmacotherapy over the last 2 decades.</p><p><strong> Method:</strong> The subjects were interviewed, and a questionnaire evaluating suicide risk was completed. The Beck Hopelessness Scale (BHS) was administered and ratings were compared to those from the original study. The Calgary Depression Scale for Schizophrenia (CDSS) was also administered. Cross tabulations were then performed to identify factors associated with increased suicide risk. For those subjects who committed suicide since the original study, a psychological autopsy was performed.</p><p><strong>Results:</strong> Fourteen of the original 33 high suicide risk schizophrenia patients were found. Three subjects committed suicide during the 20 year period. Among the living subjects, risks for suicide were found to be lower than 20 years ago. Hopelessness and depressive symptoms correlated with independently evaluated suicide risk. Social withdrawal, blunting of affect and delusions were also associated with elevated risk. Good insight into illness and a history of previous suicide attempts correlate with high suicide risk. Cannabis abuse, poor or periodic adherence to treatment, as well as weight gain, akathisia and parkinsonian adverse effects were also associated with an increase in risk for suicide. Formal thought disorder, avolition and cognitive impairment were associated with lower risk of suicide.</p><p><strong>Conclusion:</strong> Hopelessness, depression, certain positive symptoms and adverse effects of medication, found in this study to be congruent with suicide risk in patients with schizophrenia, coincide with those mentioned in the literature. Despite current knowledge about this subject, suicide remains notoriously and ominously unpredictable in patients with schizophrenia.</p>


Sign in / Sign up

Export Citation Format

Share Document