Historical spatial reconstruction of a spawning-aggregation fishery.

Aggregations of individual animals that form for breeding purposes are a critical ecological process for many species, yet these aggregations are inherently vulnerable to exploitation. Studies of the decline of exploited populations that form breeding aggregations tend to focus on catch rate and thus often overlook reductions in geographic range. We tested the hypothesis that catch rate and site occupancy of exploited fish-spawning aggregations (FSAs) decline in synchrony over time. We used the Spanish mackerel (Scomberomorus commerson) spawning-aggregation fishery in the Great Barrier Reef as a case study. Data were compiled from historical newspaper archives, fisher knowledge, and contemporary fishery logbooks to reconstruct catch rates and exploitation trends from the inception of the fishery. Our fine-scale analysis of catch and effort data spanned 103 years (1911-2013) and revealed a spatial expansion of fishing effort. Effort shifted offshore at a rate of 9.4 nm/decade, and 2.9 newly targeted FSAs were reported/decade. Spatial expansion of effort masked the sequential exploitation, commercial extinction, and loss of 70% of exploited FSAs. After standardizing for improvements in technological innovations, average catch rates declined by 90.5% from 1934 to 2011 (from 119.4 to 11.41 fish/vessel/trip). Mean catch rate of Spanish mackerel and occupancy of exploited mackerel FSAs were not significantly related. Our study revealed a special kind of shifting spatial baseline in which a contraction in exploited FSAs occurred undetected. Knowledge of temporally and spatially explicit information on FSAs can be relevant for the conservation and management of FSA species.

Identifying species threatened with local extinction in tropical reef fisheries using historical reconstruction of species occurrence.

Identifying the species that are at risk of local extinction in highly diverse ecosystems is a big challenge for conservation science. Assessments of species status are costly and difficult to implement in developing countries with diverse ecosystems due to a lack of species-specific surveys, species-specific data, and other resources. Numerous techniques are devised to determine the threat status of species based on the availability of data and budgetary limits. On this basis, we developed a framework that compared occurrence data of historically exploited reef species in Kenya from existing disparate data sources. Occurrence data from archaeological remains (750-1500CE) was compared with occurrence data of these species catch assessments, and underwater surveys (1991-2014CE). This comparison indicated that only 67 species were exploited over a 750 year period, 750-1500CE, whereas 185 species were landed between 1995 and 2014CE. The first step of our framework identified 23 reef species as threatened with local extinction. The second step of the framework further evaluated the possibility of local extinction with Bayesian extinction analyses using occurrence data from naturalists' species list with the existing occurrence data sources. The Bayesian extinction analysis reduced the number of reef species threatened with local extinction from 23 to 15. We compared our findings with three methods used for assessing extinction risk. Commonly used extinction risk methods varied in their ability to identify reef species that we identified as threatened with local extinction by our comparative and Bayesian method. For example, 12 of the 15 threatened species that we identified using our framework were listed as either least concern, unevaluated, or data deficient in the International Union for the Conservation of Nature red list. Piscivores and macro-invertivores were the only functional groups found to be locally extinct. Comparing occurrence data from disparate sources revealed a large number of historically exploited reef species that are possibly locally extinct. Our framework addressed biases such as uncertainty in priors, sightings and survey effort, when estimating the probability of local extinction. Our inexpensive method showed the value and potential for disparate data to fill knowledge gaps that exist in species extinction assessments.

A Novel Picture Guide to Improve Spiritual Care and Reduce Anxiety in Mechanically Ventilated Adults in the Intensive Care Unit.

RATIONALE: Hospital chaplains provide spiritual care that helps patients facing serious illness cope with their symptoms and prognosis, yet because mechanically ventilated patients cannot speak, spiritual care of these patients has been limited. OBJECTIVES: To determine the feasibility and measure the effects of chaplain-led picture-guided spiritual care for mechanically ventilated adults in the intensive care unit (ICU). METHODS: We conducted a quasi-experimental study at a tertiary care hospital between March 2014 and July 2015. Fifty mechanically ventilated adults in medical or surgical ICUs without delirium or dementia received spiritual care by a hospital chaplain using an illustrated communication card to assess their spiritual affiliations, emotions, and needs and were followed until hospital discharge. Feasibility was assessed as the proportion of participants able to identify spiritual affiliations, emotions, and needs using the card. Among the first 25 participants, we performed semistructured interviews with 8 ICU survivors to identify how spiritual care helped them. For the subsequent 25 participants, we measured anxiety (on 100-mm visual analog scales [VAS]) immediately before and after the first chaplain visit, and we performed semistructured interviews with 18 ICU survivors with added measurements of pain and stress (on ±100-mm VAS). MEASUREMENTS AND MAIN RESULTS: The mean (SD) age was 59 (±16) years, median mechanical ventilation days was 19.5 (interquartile range, 7-29 d), and 15 (30%) died in-hospital. Using the card, 50 (100%) identified a spiritual affiliation, 47 (94%) identified one or more emotions, 45 (90%) rated their spiritual pain, and 36 (72%) selected a chaplain intervention. Anxiety after the first visit decreased 31% (mean score change, -20; 95% confidence interval, -33 to -7). Among 28 ICU survivors, 26 (93%) remembered the intervention and underwent semistructured interviews, of whom 81% felt more capable of dealing with their hospitalization and 0% felt worse. The 18 ICU survivors who underwent additional VAS testing during semistructured follow-up interviews reported a 49-point reduction in stress (95% confidence interval, -72 to -24) and no significant change in physical pain that they attributed to picture-guided spiritual care. CONCLUSIONS: Chaplain-led picture-guided spiritual care is feasible among mechanically ventilated adults and shows potential for reducing anxiety during and stress after an ICU admission.