Comparison of Marine Spatial Planning Methods in Madagascar Demonstrates Value of Alternative Approaches

The Government of Madagascar plans to increase marine protected area coverage by over one million hectares. To assist this process, we compare four methods for marine spatial planning of Madagascar's west coast. Input data for each method was drawn from the same variables: fishing pressure, exposure to climate change, and biodiversity (habitats, species distributions, biological richness, and biodiversity value). The first method compares visual color classifications of primary variables, the second uses binary combinations of these variables to produce a categorical classification of management actions, the third is a target-based optimization using Marxan, and the fourth is conservation ranking with Zonation. We present results from each method, and compare the latter three approaches for spatial coverage, biodiversity representation, fishing cost and persistence probability. All results included large areas in the north, central, and southern parts of western Madagascar. Achieving 30% representation targets with Marxan required twice the fish catch loss than the categorical method. The categorical classification and Zonation do not consider targets for conservation features. However, when we reduced Marxan targets to 16.3%, matching the representation level of the “strict protection” class of the categorical result, the methods show similar catch losses. The management category portfolio has complete coverage, and presents several management recommendations including strict protection. Zonation produces rapid conservation rankings across large, diverse datasets. Marxan is useful for identifying strict protected areas that meet representation targets, and minimize exposure probabilities for conservation features at low economic cost. We show that methods based on Zonation and a simple combination of variables can produce results comparable to Marxan for species representation and catch losses, demonstrating the value of comparing alternative approaches during initial stages of the planning process. Choosing an appropriate approach ultimately depends on scientific and political factors including representation targets, likelihood of adoption, and persistence goals

The impact of COVID-19 on quality of life among patients with inflammatory bowel diseases - A Danish prospective population-based cohort study

BACKGROUND: The coronavirus disease 2019 (COVID-19) pandemic raised concerns among patients with ulcerative colitis (UC) and Crohn’s disease (CD) fearing an increased susceptibility to infection and increased risk of poor outcomes. Furthermore, the impact of COVID-19 on subsequent health-related quality of life (HRQoL) has so far not been described. We aimed to evaluate the HRQoL in relation to the severity of COVID-19 in a cohort of survivors. METHODS: We conducted a population-based study investigating the outcomes of COVID-19 among patients with UC and CD in Denmark. The Danish COVID-19 IBD Database is an extensive population-based database which prospectively monitors the disease course of laboratory-confirmed COVID-19 among patients with UC and CD. Severe COVID-19 was defined as COVID-19 necessitating intensive care unit admission, ventilator use, or death, while adverse COVID-19 was defined as requirement of COVID-19 related hospitalization. HRQoL was assessed using several validated questionnaires, including the EuroQol five-dimension five-level (EQ-5D-5L) questionnaire, EuroQol Visual Analogue Scale (EQ-VAS), Short Inflammatory Bowel Disease Questionnaire (SIBDQ), IBD Disability Index (IBD-DI), and IBD Fatigue Score. RESULTS: HRQoL after COVID-19 was assessed among 137/319 (42.9%) patients with UC of whom 125 (91.2%) and 12 (8.8%) patients experienced mild and adverse COVID-19, respectively. Furthermore, HRQoL was assessed among 85/197 (43.1%) patients with CD of whom 74 (87.1%) and 11 (12.9%) patients experienced mild and adverse COVID-19, respectively. HRQoL was assessed after a median of 5.1 months (IQR 4.5–7.9) after infection. Baseline characteristics are presented according to the availability of HRQoL data in Table 1. No difference was observed in terms of EQ-5D-5L among patients with UC and CD or patients with mild, adverse, or severe COVID-19 (Table 2). Accordingly, the SIBDQ scores were similar among patients with mild, adverse or severe COVID-19 and UC (mild: median 59 (IQR 50–65), adverse: 62 (54–65), severe: 62 (54–65), p=0.89) or CD (mild: 57 (46–65), 58 (49–64), 58 (49–64), p=0.91) as well, and no difference was observed in the subscores (Table 2). In line with these results, the IBD Disability Index (UC: median 10 (IQR 6–16), CD: 13 (6–20), p=0.16) were not associated with the severity of COVID-19 (Table 3). Finally, CD patients with adverse COVID-19 experienced more fatigue than patients with mild COVID-19 (26 (IQR 25–35) vs. 41 (IQR 29–46), p=0.03). [Image: see text] [Image: see text] [Image: see text] CONCLUSION: [Image: see text] This Danish population-based study found no durable impact of COVID-19 on health-related quality of life among patients with inflammatory bowel disease providing further assurance for the clinical guidelines for IBD care during the pandemic

Cetacean research in the southern African subregion : a review of previous studies and current knowledge

Cetacean research, in terms of the number of papers, and areas for which data are available, has expanded considerably in the southern African subregion in the past decade, especially in the South-West Indian Ocean. We review cetacean research within this subregion from the 1800s to the present to provide an  overview of findings, investigate trends and identify knowledge gaps. Data are presented separately for large whales (those subject to commercial whaling) and smaller cetaceans, and are separated by era and ocean basin. Over 550 peer-reviewed papers and books were identified relating to research on cetaceans  within the subregion. More than half (284) have been produced since 1990 and 193 relate specifically to South African waters. The most-studied species are those that are most accessible due to their coastal distributions (southern right whale Eubalaena australis: 45 papers, humpback whale Megaptera novaeangliae: 31 papers, killer whales Orcinus orca : 27 papers, Indo-Pacific bottlenose dolphin Tursiops aduncus: 30 papers, Indo-Pacific humpback dolphin Sousa chinensis (plumbea form): 25 papers) and/or were hunted commercially (sperm whale Physeter macrocephalus: 25 papers). Identified conservation concerns vary throughout the subregion, but include bycatch and directed hunts, oil and gas development, ecotourism activities, shifts in prey resources, and noise and chemical pollution. The inshore stocks of Bryde’s whales Balaenoptera edeni , the Indo-Pacific humpback dolphin and the Atlantic humpback dolphin S. teuszii were identified as the populations of highest conservation concern, although there are considerable knowledge gaps relating to deep-water species and almost no data (even on species occurrence) are available for several areas and countries. Keywords: Atlantic Ocean, dolphin, Indian Ocean, Southern Ocean, whale, whalingAfrican Journal of Marine Science 2011, 33(3): 469–49