The impact of dissolved oxygen concentration on the swimming performance and welfare of ballan wrasse (Labrus bergylta Ascanius, 1767).

Sea lice (Lepeophtheirus salmonis [Krøyer, 1838]) are a key issue for salmon aquaculture, contributing to increased mortality for both wild and farmed salmon if no action is taken. Using cleaner fish can be an effective, drug-free treatment method, and ballan wrasse (Labrus bergylta) is a hardy wrasse species that displays cleaning behavior. With concerns about the overharvest of wild ballan wrasse, many companies farm this species, but the optimal ranges of a wide variety of rearing parameters are still unknown. This study investigated the effect of 6-week exposure to four dissolved oxygen (DO) levels (125%, 100%, 85%, and 75% DO saturation as the percentage of air) on ballan wrasse. Survival; growth (specific growth rate, SGR); condition factor (CF); and primary (cortisol), secondary (glucose, lactate, magnesium), and tertiary stress indicators (swimming performance) were investigated. There were no differences in SGR, CF, survival, or cortisol level among the groups at the end of the 6 weeks. There was variation in the magnitude of the cortisol response to an acute stressor at the end of the 6-week period, with the 75% DO treatment exhibiting a 3.3-fold increase in cortisol compared to a 5.2-fold increase in the control group (100%), which could suggest chronic stress. Relative critical swimming speed (RUcrit) was measured to investigate swimming performance once all groups were returned to 100% DO saturation. The 75% RUcrit was lower than the 100% treatment (1.7 ± 0.18 body length [BL]/s compared to 2.5 ± 0.16 BL/s). Overall, these results suggest that DO levels of 75% trigger physiological changes and therefore may negatively affect welfare.

School-Based Tele-Behavioral Health: A Scoping Review of the Literature.

BACKGROUND: Telehealth utilization exploded during the COVID-19 pandemic, including within school-based health programs. School-based tele-behavioral health can help programs overcome barriers of access to care, but the current state and effectiveness of such programs are unknown. METHODS: A scoping literature review was conducted. Studies were included if they described in-school behavioral health services delivered via telehealth for children ages 5 to 18. From the included studies, population, location, setting, intervention, telehealth modality, clinician type, and outcomes assessed were extracted. FINDINGS: Eighteen studies met inclusion criteria. All described psychotherapy or medication management delivered by psychologists (n = 7) and/or psychiatrists (n = 11). Treatment included psychotherapy (N = 8), psychiatric consultation (N = 7), medication management (N = 4), crisis stabilization (N = 1), and caregiver education (N = 1). Eight studies provide qualitative or quantitative outcomes, with 4 examining clinical effectiveness. CONCLUSIONS: Despite limited findings in the literature, school-based tele-behavioral health is feasible, effective, and acceptable for delivery of behavioral health care to children and adolescents.

Lifetime stressor exposure, eating expectancy, and acute social stress-related eating behavior: A pre-registered study of the emotional eating cycle.

Eating behaviors in response to acute stressors are highly variable: whereas many individuals eat more following stressors, others eat less or show no change in food consumption. Understanding factors that predict individual differences in eating behaviors may help elucidate the psychosocial mechanisms underlying obesity, yet few experimental studies on this topic have been conducted to date. To address this issue, we conducted the present pre-registered study, where we investigated how lifetime stressor exposure moderates the extent to which eating expectancies enhance the learned association between stress-induced negative affect and snack intake. Participants were 44 women (30% non-White) between 18 and 50 years old (M = 27.9), with a mean body mass index of 25.6, who completed assessments of lifetime stressor exposure, eating behaviors, and eating expectancies (eating helps manage negative affect); in a subsequent visit, they were given snacks after an acute social stress task (TSST). The moderated moderation model (PROCESS model 3) yielded a significant three-way interaction. When eating expectancies were high, acute social stress-induced negative affect predicted greater M&M intake for women with very high total lifetime stressor exposure but less M&M intake for women with fewer lifetime stressors. These data thus highlight how lifetime stressor exposure interacts with eating expectancies and acute stress-induced negative affect to predict eating behavior. Replications in larger samples may help explain variability in stress-eating as well as how lifetime stressors contribute to obesity.

Defining the target: clinical aims in axial spondyloarthritis.

Treat-to-target (T2T) is an emerging treatment paradigm in axial spondyloarthritis (axSpA), originally based on evidence from other inflammatory conditions, which aims to direct therapy to a clear target such as disease remission or low disease activity, with the ultimate goal of maximizing quality of life in affected individuals. The 2016 update of the Assessment of Spondyloarthritis International Society/EULAR guidelines for axSpA have recommended that treatment should be guided according to a predefined target but controversy remains as to what this target should be. An international task force has recommended remission or inactive disease as the desired outcome; however, there are many disease outcome measures developed for use in clinical practice in axSpA and the question remains of which is the most appropriate to use. Another important consideration when discussing the T2T paradigm is when to intervene. Although evidence is limited in this respect, the available data suggest that therapy should be commenced at an early stage of the disease, when the process of bone repair expected to occur after an inflammatory phase has not yet started. It has also been argued that the success of the T2T paradigm may depend more on the treatment strategy than the individual therapies utilized. This article will explore the feasibility of using a T2T approach in axSpA clinical practice, the utilization of new composite outcome measures of disease activity such as the ASDAS, and the validity of different treatment strategies to allow for a T2T intervention in these patients.