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Tran D, Andrade H, Durier G, Ciret P, Leopold P, Sow M, Ballantine C, Camus L, Berge J, Perrigault M. Growth and behaviour of blue mussels, a re-emerging polar resident, follow a strong annual rhythm shaped by the extreme high Arctic light regime. R Soc Open Sci 2020; 7:200889. [PMID: 33204461 PMCID: PMC7657935 DOI: 10.1098/rsos.200889] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 09/23/2020] [Indexed: 06/11/2023]
Abstract
Polar regions are currently warming at a rate above the global average. One issue of concern is the consequences on biodiversity in relation to the Northward latitudinal shift in distribution of temperate species. In the present study, lasting almost two years, we examined two phenological traits, i.e. the shell growth and behavioural rhythm of a recently re-established species in the high Arctic, the blue mussel Mytilus sp. We compared this with a native species, the Islandic scallop Chlamys islandica. We show marked differences in the examined traits between the two species. In Mytilus sp., a clear annual pattern of shell growth strongly correlated to the valve behaviour rhythmicity, whereas C. islandica exhibited a shell growth pattern with a total absence of annual rhythmicity of behaviour. The shell growth was highly correlated to the photoperiod for the mussels but weaker for the scallops. The water temperature cycle was a very weak parameter to anticipate the phenology traits of both species. This study shows that the new resident in the high Arctic, Mytilus sp., is a highly adaptive species, and therefore a promising bioindicator to study the consequences of biodiversity changes due to global warming.
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Affiliation(s)
- Damien Tran
- University of Bordeaux, UMR 5805, F-33120 Arcachon, France
- CNRS, EPOC, UMR 5805, F-33120 Arcachon, France
| | - Hector Andrade
- Akvaplan-niva AS, Fram – High North Centre for Climate and the Environment, Langnes, Postbox 6606, 9296 Tromsø, Norway
| | | | - Pierre Ciret
- University of Bordeaux, UMR 5805, F-33120 Arcachon, France
- CNRS, EPOC, UMR 5805, F-33120 Arcachon, France
| | - Peter Leopold
- Faculty of Biosciences, Fisheries and Economics, UiT The Arctic University of Norway, 9037 Tromsø, Norway
- University Centre in Svalbard, Pb 156, 9171 Longyearbyen, Norway
| | - Mohamedou Sow
- University of Bordeaux, UMR 5805, F-33120 Arcachon, France
| | - Carl Ballantine
- Akvaplan-niva AS, Fram – High North Centre for Climate and the Environment, Langnes, Postbox 6606, 9296 Tromsø, Norway
| | - Lionel Camus
- Akvaplan-niva AS, Fram – High North Centre for Climate and the Environment, Langnes, Postbox 6606, 9296 Tromsø, Norway
| | - Jørgen Berge
- Faculty of Biosciences, Fisheries and Economics, UiT The Arctic University of Norway, 9037 Tromsø, Norway
- University Centre in Svalbard, Pb 156, 9171 Longyearbyen, Norway
- Department of Biology, Norwegian University of Science and Technology, Centre for Autonomous Marine Operations and Systems, NTNU
| | - Mickael Perrigault
- University of Bordeaux, UMR 5805, F-33120 Arcachon, France
- CNRS, EPOC, UMR 5805, F-33120 Arcachon, France
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Salfer IJ, Dechow CD, Harvatine KJ. Annual rhythms of milk and milk fat and protein production in dairy cattle in the United States. J Dairy Sci 2018; 102:742-753. [PMID: 30447981 DOI: 10.3168/jds.2018-15040] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Accepted: 09/27/2018] [Indexed: 11/19/2022]
Abstract
An annual pattern of milk composition has been well recognized in dairy cattle, with the highest milk fat and protein concentration observed during the winter and lowest occurring in the summer; however, rhythms of milk yield and composition have not been well quantified. Cosinor rhythmometry is commonly used to model repeating daily and annual rhythms and allows determination of the amplitude (peak to mean), acrophase (time at peak), and period (time between peaks) of the rhythm. The objective of this study was to use cosinor rhythmometry to characterize the annual rhythms of milk yield and milk fat and protein concentration and yield using both national milk market and cow-level data. First, 10 yr of monthly average milk butterfat and protein concentration for each Federal Milk Marketing Order were obtained from the US Department of Agriculture Agricultural Marketing Service database. Fat and protein concentration fit a cosine function with a 12-mo period in all milk markets. We noted an interaction between milk marketing order and milk fat and protein concentration. The acrophase (time at peak) of the fat concentration rhythm ranged from December 4 to January 19 in all regions, whereas the rhythm of protein concentration peaked between December 27 and January 6. The amplitude (peak to mean) of the annual rhythm ranged from 0.07 to 0.14 percentage points for milk fat and from 0.08 to 0.12 percentage points for milk protein. The amplitude of the milk fat rhythm generally was lower in southern markets and higher in northern markets. Second, the annual rhythm of milk yield and milk fat and protein yield and concentration were analyzed in monthly test day data from 1,684 cows from 11 tiestall herds in Pennsylvania. Fat and protein concentration fit an annual rhythm in all herds, whereas milk and milk fat and protein yield only fit rhythms in 8 of the 11 herds. On average, milk yield peaked in April, fat and protein yield peaked in February, fat concentration peaked in January, and protein concentration peaked in December. Amplitudes of milk, fat, and protein yield averaged 0.82 kg, 55.3 g, and 30.4 g, respectively. Milk fat and protein concentration had average amplitudes of 0.12 and 0.07, respectively, similar to the results of the milk market data. Generally, milk yield and milk components fit annual rhythm regardless of parity or diacylglycerol O-acyltransferase 1 (DGAT1) K232A polymorphism, with only cows of the low-frequency AA genotype (5.2% of total cows) failing to fit rhythm of milk yield. In conclusion, the yearly rhythms of milk yield and fat and protein concentration and yield consistently occur regardless of region, herd, parity, or DGAT1 genotype and supports generation by a conserved endogenous annual rhythm.
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Affiliation(s)
- I J Salfer
- Department of Animal Science, Penn State University, University Park 16802
| | - C D Dechow
- Department of Animal Science, Penn State University, University Park 16802
| | - K J Harvatine
- Department of Animal Science, Penn State University, University Park 16802.
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Bai B, Toubiana D, Gendler T, Degu A, Gutterman Y, Fait A. Metabolic patterns associated with the seasonal rhythm of seed survival after dehydration in germinated seeds of Schismus arabicus. BMC Plant Biol 2015; 15:37. [PMID: 25652352 PMCID: PMC4330942 DOI: 10.1186/s12870-015-0421-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2014] [Accepted: 01/12/2015] [Indexed: 05/26/2023]
Abstract
BACKGROUND Seed of Shismus arabicus, a desert annual, display a seasonal tolerance to dehydration. The occurrence of a metabolic seasonal rhythm and its relation with the fluctuations in seed dehydration tolerance was investigated. RESULTS Dry seeds metabolism was the least affected by the season, while the metabolism of germinated and dehydrated seeds exhibit distinct seasonal patterns. Negative associations exist between amino acids, sugars and TCA cycle intermediates and seed survival, while positive relations exist with seed germination. In contrast, associations between the level of secondary metabolites identified in the dehydrated seeds and survival percentage were evenly distributed in positive and negative values, suggesting a functional role of these metabolites in the establishment of seed dehydration tolerance. CONCLUSION Our results indicate the occurrence of metabolic biorhythms in germinating and dehydrating seeds associated with seasonal changes in germination and, more pronouncedly, in seed dehydration tolerance. Increased biosynthesis of protective compounds (polyphenols) in dehydrating seeds during the winter season at the expenses of central metabolites likely contributes to the respective enhanced dehydration tolerance monitored.
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Affiliation(s)
- Bing Bai
- Ben-Gurion University of the Negev, Jacob Blaustein Institutes for Desert Research, French Associates Institute for Agriculture and Biotechnology of Drylands, Midreshet Ben-Gurion, 84990, Israel.
- Current address: Department of Molecular Plant Physiology, Utrecht University, Utrecht, 3584 CH, The Netherlands.
| | - David Toubiana
- Ben-Gurion University of the Negev, Jacob Blaustein Institutes for Desert Research, French Associates Institute for Agriculture and Biotechnology of Drylands, Midreshet Ben-Gurion, 84990, Israel.
| | - Tanya Gendler
- Ben-Gurion University of the Negev, Jacob Blaustein Institutes for Desert Research, French Associates Institute for Agriculture and Biotechnology of Drylands, Midreshet Ben-Gurion, 84990, Israel.
| | - Asfaw Degu
- Ben-Gurion University of the Negev, Jacob Blaustein Institutes for Desert Research, French Associates Institute for Agriculture and Biotechnology of Drylands, Midreshet Ben-Gurion, 84990, Israel.
| | - Yitzchak Gutterman
- Ben-Gurion University of the Negev, Jacob Blaustein Institutes for Desert Research, French Associates Institute for Agriculture and Biotechnology of Drylands, Midreshet Ben-Gurion, 84990, Israel.
| | - Aaron Fait
- Ben-Gurion University of the Negev, Jacob Blaustein Institutes for Desert Research, French Associates Institute for Agriculture and Biotechnology of Drylands, Midreshet Ben-Gurion, 84990, Israel.
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Refinetti R, Sani M, Jean-Louis G, Pandi-Perumal SR, Durazo-Arvizu RA, Dugas LR, Kafensztok R, Bovet P, Forrester TE, Lambert EV, Plange-Rhule J, Luke A. Evidence for daily and weekly rhythmicity but not lunar or seasonal rhythmicity of physical activity in a large cohort of individuals from five different countries. Ann Med 2015; 47:530-7. [PMID: 26402449 PMCID: PMC4667949 DOI: 10.3109/07853890.2015.1085125] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Biological rhythmicity has been extensively studied in animals for many decades. Although temporal patterns of physical activity have been identified in humans, no large-scale, multi-national study has been published, and no comparison has been attempted of the ubiquity of activity rhythms at different time scales (such as daily, weekly, monthly, and annual). METHODS Using individually worn actigraphy devices, physical activity of 2,328 individuals from five different countries (adults of African descent from Ghana, South Africa, Jamaica, Seychelles, and the United States) was measured for seven consecutive days at different times of the year. RESULTS Analysis for rhythmic patterns identified daily rhythmicity of physical activity in all five of the represented nationalities. Weekly rhythmicity was found in some, but not all, of the nationalities. No significant evidence of lunar rhythmicity or seasonal rhythmicity was found in any of the groups. CONCLUSIONS These findings extend previous small-scale observations of daily rhythmicity to a large cohort of individuals from around the world. The findings also confirm the existence of modest weekly rhythmicity but not lunar or seasonal rhythmicity in human activity. These differences in rhythm strength have implications for the management of health hazards of rhythm misalignment.
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Affiliation(s)
- Roberto Refinetti
- a Circadian Rhythm Laboratory, Department of Psychology , Boise State University , Boise , Idaho , USA
| | - Mamane Sani
- a Circadian Rhythm Laboratory, Department of Psychology , Boise State University , Boise , Idaho , USA.,b MRU Biomonitoring and Environmental Toxicology, Department of Biology, Faculty of Sciences and Techniques of Maradi , Maradi , Niger
| | - Girardin Jean-Louis
- c Division of Internal Medicine, Center for Healthful Behavior Change , New York University Medical Center , New York , New York , USA
| | - Seithikurippu R Pandi-Perumal
- c Division of Internal Medicine, Center for Healthful Behavior Change , New York University Medical Center , New York , New York , USA
| | | | - Lara R Dugas
- d Stritch School of Medicine , Loyola University Chicago , Maywood , Illinois , USA
| | - Ruth Kafensztok
- d Stritch School of Medicine , Loyola University Chicago , Maywood , Illinois , USA
| | - Pascal Bovet
- e Institute of Social and Preventive Medicine, Lausanne University Hospital , Lausanne , Switzerland.,f Ministry of Health , Mont Fleuri , Republic of Seychelles
| | - Terrence E Forrester
- g Tropical Medicine Research Institute, University of the West Indies , Mona , Kingston , Jamaica
| | - Estelle V Lambert
- h Research Unit for Exercise Science and Sports Medicine, University of Cape Town , Cape Town , South Africa
| | - Jacob Plange-Rhule
- i School of Medical Sciences , Kwame Nkrumah University of Science and Technology , Kumasi , Ghana
| | - Amy Luke
- d Stritch School of Medicine , Loyola University Chicago , Maywood , Illinois , USA
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