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Bernaldo de Quirós Y, Fernandez A, Baird RW, Brownell RL, Aguilar de Soto N, Allen D, Arbelo M, Arregui M, Costidis A, Fahlman A, Frantzis A, Gulland FMD, Iñíguez M, Johnson M, Komnenou A, Koopman H, Pabst DA, Roe WD, Sierra E, Tejedor M, Schorr G. Advances in research on the impacts of anti-submarine sonar on beaked whales. Proc Biol Sci 2020; 286:20182533. [PMID: 30963955 DOI: 10.1098/rspb.2018.2533] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Mass stranding events (MSEs) of beaked whales (BWs) were extremely rare prior to the 1960s but increased markedly after the development of naval mid-frequency active sonar (MFAS). The temporal and spatial associations between atypical BW MSEs and naval exercises were first observed in the Canary Islands, Spain, in the mid-1980s. Further research on BWs stranded in association with naval exercises demonstrated pathological findings consistent with decompression sickness (DCS). A 2004 ban on MFASs around the Canary Islands successfully prevented additional BW MSEs in the region, but atypical MSEs have continued in other places of the world, especially in the Mediterranean Sea, with examined individuals showing DCS. A workshop held in Fuerteventura, Canary Islands, in September 2017 reviewed current knowledge on BW atypical MSEs associated with MFAS. Our review suggests that the effects of MFAS on BWs vary among individuals or populations, and predisposing factors may contribute to individual outcomes. Spatial management specific to BW habitat, such as the MFAS ban in the Canary Islands, has proven to be an effective mitigation tool and mitigation measures should be established in other areas taking into consideration known population-level information.
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Affiliation(s)
- Y Bernaldo de Quirós
- 1 Institute of Animal Health, University of Las Palmas de Gran Canaria, Veterinary School , C/Transmontaña s/n, 35416, Arucas, Las Palmas , Spain
| | - A Fernandez
- 1 Institute of Animal Health, University of Las Palmas de Gran Canaria, Veterinary School , C/Transmontaña s/n, 35416, Arucas, Las Palmas , Spain
| | - R W Baird
- 2 Cascadia Research Collective , 218½ W. 4th Avenue, Olympia, WA 98501 , USA
| | - R L Brownell
- 3 NOAA Fisheries, Southwest Fisheries Science Center , Monterey, CA 93940 , USA
| | - N Aguilar de Soto
- 4 BIOECOMAC. Dept. Animal Biology, Geology and Edaphology, University of La Laguna , Tenerife , Spain
| | - D Allen
- 5 US Marine Mammal Commission , 4340 East-West Highway, Suite 700, Bethesda, MD 20814 , USA
| | - M Arbelo
- 1 Institute of Animal Health, University of Las Palmas de Gran Canaria, Veterinary School , C/Transmontaña s/n, 35416, Arucas, Las Palmas , Spain
| | - M Arregui
- 1 Institute of Animal Health, University of Las Palmas de Gran Canaria, Veterinary School , C/Transmontaña s/n, 35416, Arucas, Las Palmas , Spain
| | - A Costidis
- 6 Virginia Aquarium & Marine Science Center Stranding Response Program , 717 General Booth Blvd, Virginia Beach, VA 23451 , USA
| | - A Fahlman
- 7 Fundación Oceanogràfic de la Comunitat Valenciana , Gran Vía Marqués del Turia 19, 46005, Valencia , Spain
| | - A Frantzis
- 8 Pelagos Cetacean Research Institute , Terpsichoris 21, 16671 Vouliagmeni , Greece
| | - F M D Gulland
- 5 US Marine Mammal Commission , 4340 East-West Highway, Suite 700, Bethesda, MD 20814 , USA.,9 The Marine Mammal Center , 2000 Bunker Road, Sausalito, CA 94965 , USA
| | - M Iñíguez
- 10 Fundación Cethus and WDC , Cap J. Bermúdez 1598, (1636), Olivos, Prov. Buenos Aires , Argentina
| | - M Johnson
- 11 Sea Mammal Research Unit, University of St Andrews , St Andrews , UK
| | - A Komnenou
- 12 School of Veterinary Medicine, Aristotle University of Thessaloniki , Thessaloniki , Greece
| | - H Koopman
- 13 Department of Biology and Marine Biology, University of North Carolina Wilmington , Wilmington, NC 28403 , USA
| | - D A Pabst
- 13 Department of Biology and Marine Biology, University of North Carolina Wilmington , Wilmington, NC 28403 , USA
| | - W D Roe
- 14 Massey University , Palmerston North, PN4222 , New Zealand
| | - E Sierra
- 1 Institute of Animal Health, University of Las Palmas de Gran Canaria, Veterinary School , C/Transmontaña s/n, 35416, Arucas, Las Palmas , Spain
| | - M Tejedor
- 15 Canary Islands Stranding Network , Irlanda 7, Playa Blanca, 35580, Lanzarote , Spain
| | - G Schorr
- 16 Marine Ecology & Telemetry Research , 2468 Camp McKenzie Tr NW, Seabeck, WA 98380 , USA
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Koopman H, Devillé W, van Eijk JT, Donker AJ, Spreeuwenberg C. Diet or diuretic? Treatment of newly diagnosed mild to moderate hypertension in the elderly. J Hum Hypertens 1997; 11:807-12. [PMID: 9468008 DOI: 10.1038/sj.jhh.1000549] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The aim of this study was to assess the effectivity of dietary measures in the treatment of hypertension. Therefore, a single-blind randomised clinical trial was carried out in elderly persons with recently diagnosed hypertension. Patients were recruited from a general practice (6555 persons) during visits or after written invitation or invitation by phone. New hypertensive patients (with measurements taken on three different occasions >159 mm Hg systolic and/or >94 mm Hg diastolic), aged 60-80 years, without target-organ damage, dementia, diabetes mellitus or malignant disease entered a 3-month intervention programme of either intensive dietary counselling, receiving a sodium-reduced (<100 mmol/24h), potassium-enriched (>75 mmol/24h), and weight-reducing diet (BMI <25), or only 25 mg chlorthalidone a day. Forty-two newly diagnosed hypertensive subjects met the inclusion criteria. Two dropped out from the chlorthalidone group, one with side effects and another after a myocardial infarction. Although blood pressure (BP) in the diet group decreased less than in the drug group, of the patients in the diet group 45% fell back to a normal systolic and 50% to a normal diastolic BP (drug treatment group, systolic 75% and diastolic 85%). In contrast with the diet group, lipid spectrum and blood glucose concentration in the diuretic group, however, deteriorated slightly. The dietary intervention was effective in elderly patients with a systolic or diastolic BP in the range of 160-180 and 95-100 mm Hg, respectively. Reduction in weight should be the primary aim. It is argued that sodium reduction can be achieved better by collective measures. In patients with a BP of more than 180 mm Hg systolic or 100 mm Hg diastolic, dietary advice and drug treatment should be combined.
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Affiliation(s)
- H Koopman
- General Practice, Nieuwegein, The Netherlands
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Koopman H, Spreeuwenberg C, Westerman RF, Donker AJ. Dietary treatment of patients with mild to moderate hypertension in a general practice: a pilot intervention study (1). The first three months. J Hum Hypertens 1990; 4:368-71. [PMID: 2258876] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Thirty-five patients with mild to moderate hypertension were randomised into a three months' dietary advised and a three months' control group. The diet was of a composition currently considered to be appropriate, and was monitored by a dietitian. Statistically significant decreases in diastolic blood pressure, mean arterial pressure, sodium excretion, and low density lipoprotein (LDL)-cholesterol occurred in the intervention group, although differences in change between the intervention and the control group were, except for LDL-cholesterol, not statistically significant. Thus, it did not become clear whether and to what extent change in diet was responsible for the lowering of the blood pressure in the intervention group.
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Affiliation(s)
- H Koopman
- Department of Medicine, Free University Hospital, Amsterdam, The Netherlands
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