Larvae Development Stages of the European Flat Oyster (Ostrea edulis)

This paper reports on the larvae development of the flat oyster, Ostrea edulis (Linnaeus, 1758), from veliger to pediveliger stage. Adult oysters were induced to spawn by thermal stimulation and large amounts of veliger larvae were obtained for study. Veliger larvae were cultured in 180-l bins at a den- sity of 3 larvae/ml. Larvae, reared at 20±2°C and fed 8-200 x 103 cells/ml of Isochrysis galbana, reached pediveliger larvae in 17 days. Shell length and width at the beginning of the pediveliger stage were 254 and 233 μm, respec- tively. Survival rate from veliger to viable pediveliger stage was 15.5%

Preliminary study of settlement of flat oyster spat (Ostreaedulis L.) on oyster and mussel shell collectors

Oyster recruitment was monitored in Karantina Island near Izmir, Turkey, from May to October 1999. The aim of the study was to determine the recruitment pattern for six months and the most suitable time to collect oyster spat from nature. Oyster and mussel shells were used as sub- strates in spat collectors. Five groups of each type of collector were deployed from May to August. The recruitment levels were highest in the groups deployed on June 16, with 4069 and 1575 oyster spats collected on the oyster and mussel shell collectors, respectively. Spat recruit- ment varied considerably between collector types as well as between the outsides and insides of shells (p<0.05). Spats larger than 10 mm were found on the second or third sampling date in each group for both oyster and mussel shell collectors. Barnacles (Balanus sp.) settled on both collector types in high numbers throughout the study. Data suggest that maximum recruitment in this area is most likely to occur on both collector types between May and mid-June

Physical Activity and Exercise in Dementia

Aging is a dynamic process that affects many systems in the body. Cognitive function with aging, including memory, intelligence, personality and behavior are affected at different levels. As time passes, durability of individuals and the amount of physical activity and exercise decrease. Apart from normal aging process, accompanying chronic brain syndrome of dementia will further reduce activities. Physical activity can provide opportunities for individuals with dementia in the path to socialize. Therefore, the role of physical activity and exercise in adapting an active lifestyle to protect the health of individuals with dementia is becoming increasingly important. Physical activity and exercise which would help in improvement of cognitive activity in dementia are briefly reviewed in this article. [Psikiyatride Guncel Yaklasimlar - Current Approaches in Psychiatry 2015; 7(3.000): 289-294

Efficiency of Physical Exercise Programs on Chronic Psychiatry Patients: A Systematic Review

Physical activity and exercise have recently been used as an effective method for the treatment of several mental disorders. In this systematic review, the objective is to evaluate the efficiency of the physical activity programs which are applied on the chronic psychiatric patients. The review is made in direction with the Centre for Reviews and Dissemination 2009 guide which is developed by the York University, National Health Care Research Institute. Seven studies are included within the scope of this research. The patients with chronic mental disorders who participate in the physical activity programs experience positive outcomes like that they feel themselves mentally better, they are more compatible with the medical treatment and therapeutic interventions, the programs diminish the anxiety, their perceptions of physical self are strengthened, the social functionality is increased, the duration of morning sleep is decreased and the quality of night sleep is increased. Accordingly, personalized, planned and continuous physical activity programs should be developed for all the psychiatric patients and these programs should be applied on such patients. [Psikiyatride Guncel Yaklasimlar - Current Approaches in Psychiatry 2016; 8(4.000): 354-366

Growth and Survival of Anadara inaequivalvis (Bruguiere, 1789) in Sufa Lagoon, Izmir, Turkey

The growth and survival of 5, 7, 9, and 11-mm juvenile blood cockle (Anadara inaequivalvis) cultured in suspended nets in Sufa Lagoon, Izmir, Turkey, were investigated. Shell length, width, and thickness and total weight were measured monthly during May 2007-May 2008. Temperature was measured every 6 h. Salinity, chlorophyll a, particulate organic matter, particulate inorganic matter, and total particulate matter were followed every two weeks. Mean increases were 16.68 and 13.46 mm and 3.62 and 5.74 g for small and large spat, respectively. Length increased significantly faster in small cockle than in large cockle (p<0.05). Survival was 65% and 100% in small and large cockles, respectively (p<0.05). Von Bertalanffy growth parameters L∞ (27 mm) and k (0.28/month) showed that growth performance (Ф′ = 3.22) was greater than for other species in the natural population. Slope b from the length-weight relationship was 3.098±0.115, indicating significantly better allometric growth (p≤0.05). Results indicate that A. inaequivalvis is a good candidate for suspended aquaculture in the Sufa Lagoon, Turkey

Comparison of Isochrysis galbana and Chlorella sp microalgae on growth and survival rate of European flat oyster (Ostrea edulis, Linnaeus 1758) larvae

WOS: 000291625200008Influence of microalgal feeding with Isochrysis galbana and Chlorella sp. on the growth and survival rate of larvae of European flat oyster, Ostrea edulis, was investigated. Larvae were reared with four food regimes: I. galbana, Chlorella sp., mixture of both and unfed for 16 days. After 16 days, it was observed that the larvae reached the umbo stage with a mean size in length 220 +/- 4.12 mu m and 219 +/- 5.76 mu m (initial length, 159 mu m) (P>0.05). Larvae were fed on I. galbana and mixture diet. At this stage, survival rate was 30% and 24%, respectively (P>0.05). Growth and survival rates for the feeding regimes were significantly higher than the Chlorella sp. and unfed groups (P<0.05)

Effect of physical activity program applied to patients with Alzheimer's disease on cognitive functions and depression level: a randomised controlled study

PubMed ID 37487556Background: In this study, it was aimed to evaluate the effect of a physical activity program applied to Alzheimer's disease patients on cognitive functions and depression. Method: This study is a randomised controlled study designed in a pre-test post-test design. It was conducted with 72 patients in total, 36 of whom were interventions and 36 were controls, at the Alzheimer's Day Life Centre. In data collection, a personal information form prepared by the researchers, questioning the socio-demographic characteristics of individuals, Mini Mental Test and Cornell Dementia Depression Scale were used. In the analysis of the data, the homogeneity between the groups in terms of independent variables was evaluated by performing a Chi-square analysis. In the evaluation of cognitive functions and depression levels of the experimental and control groups, t-test was used in the dependent and independent groups. Statistical significance level was accepted as P < 0.05. Results: In the study, the cognitive functions of the experimental group, in which a 12-week physical activity program was applied, were higher than the control group and the difference was significant (P < 0.05). Similarly, the depression scale mean score of the experimental group was found to be better than the depression level of the individuals in the control group, and the difference was significant (P < 0.05). Conclusion: The 12-week physical activity program applied to Alzheimer's disease patients improved cognitive functions and depression levels of individuals