scholarly journals Tracking the movements of North Atlantic seabirds: steps towards a better understanding of population dynamics and marine ecosystem conservation

2021 ◽  
Vol 676 ◽  
pp. 97-116 ◽  
Author(s):  
H Strøm ◽  
S Descamps ◽  
M Ekker ◽  
P Fauchald ◽  
B Moe
Keyword(s):  
Population Dynamics ◽  
North Atlantic ◽  
Marine Ecosystem ◽  
Future Research ◽  
Original Research ◽  
Seabird Species ◽  
The North ◽  
Winter Distribution ◽  
Migration Strategies ◽  
The North Atlantic

Many seabird species undergo extensive seasonal migrations, often across large marine ecosystems or between marine areas under different national jurisdictions. With the advances of electronic tracking, especially of the application of Global Location Sensors (GLS or geolocators), it is now possible to study the seasonal movements of seabirds and link breeding populations to non-breeding habitats. To take full advantage of this development for better management and conservation, and to broaden the scope of scientific questions that can be assessed, there is a need for large-scale and multi-species programmes. The SEATRACK project with partners from 10 countries is ongoing and aims to identify the year-round distribution and movements of seabirds breeding in colonies across the northern part of the North Atlantic. By 2020, 14534 loggers were deployed on 11 species, and data from 5440 retrieved loggers have been analyzed and compiled. This Theme Section assembles original research articles based on data collected as part of the SEATRACK project from 2014 to 2019. A series of 11 papers advances the knowledge within 4 research themes: (1) variation in migration strategies among individuals, populations and species; (2) linking migration strategies and winter distribution to seabird demography and population dynamics; (3) linking migration and winter distribution to contaminants in seabirds and (4) the use of GLS data in marine spatial planning. We review existing literature within SEATRACK’s 4 themes with a focus on the temperate and arctic zones of the North Atlantic to provide a framework within which to discuss the 11 contributions and provide recommendations for future research.

scholarly journals External forcing mechanisms controlling the North Atlantic coastal upwelling regime during the mid-Holocene

Geology ◽  
2020 ◽  
Author(s):  
Armand Hernández ◽  
Mário Cachão ◽  
Pedro Sousa ◽  
Ricardo M. Trigo ◽  
Jürg Luterbacher ◽  
...  
Keyword(s):  
North Atlantic ◽  
Coastal Upwelling ◽  
Marine Ecosystem ◽  
External Forcing ◽  
The North ◽  
New Findings ◽  
The North Atlantic ◽  
Eastern North Atlantic ◽  
Forcing Mechanisms ◽  
The Impact

Nearshore upwelling along the eastern North Atlantic margin regulates regional marine ecosystem productivity and thus impacts blue economies. While most global circulation models show an increase in the intensity and duration of seasonal upwelling at high latitudes under future human-induced warmer conditions, projections for the North Atlantic are still ambiguous. Due to the low temporal resolution of coastal upwelling records, little is known about the impact of natural forcing mechanisms on upwelling variability. Here, we present a microfossil-based proxy record and modeling simulations for the warmest period of the Holocene (ca. 9–5 ka) to estimate the contribution of the natural variability in North Atlantic upwelling via atmospheric and oceanic dynamics. We found that more frequent high-pressure conditions in the eastern North Atlantic associated with solar activity and orbital parameters triggered upwelling variations at multidecadal and millennial time scales, respectively. Our new findings offer insights into the role of external forcing mechanisms in upwelling changes before the Anthropocene, which must be considered when producing future projections of midlatitude upwelling activity.

scholarly journals The North Atlantic Aerosol and Marine Ecosystem Study (NAAMES): Science Motive and Mission Overview

2019 ◽  
Vol 6 ◽  
Author(s):  
Michael J. Behrenfeld ◽  
Richard H. Moore ◽  
Chris A. Hostetler ◽  
Jason Graff ◽  
Peter Gaube ◽  
...  
Keyword(s):  
North Atlantic ◽  
Marine Ecosystem ◽  
The North ◽  
The North Atlantic

scholarly journals Observations of Aerosol‐Cloud Interactions During the North Atlantic Aerosol and Marine Ecosystem Study

2020 ◽  
Vol 47 (3) ◽  
Author(s):  
Kenneth Sinclair ◽  
Bastiaan Diedenhoven ◽  
Brian Cairns ◽  
Mikhail Alexandrov ◽  
Richard Moore ◽  
...  
Keyword(s):  
North Atlantic ◽  
Marine Ecosystem ◽  
Aerosol Cloud ◽  
The North ◽  
The North Atlantic ◽  
Aerosol Cloud Interactions

Phylogeography and population dynamics of the white-sided dolphin (Lagenorhynchus acutus) in the North Atlantic

2014 ◽  
Vol 15 (4) ◽  
pp. 789-802 ◽  
Author(s):  
E. Banguera-Hinestroza ◽  
P. G. H. Evans ◽  
L. Mirimin ◽  
R. J. Reid ◽  
B. Mikkelsen ◽  
...  
Keyword(s):  
Population Dynamics ◽  
North Atlantic ◽  
The North ◽  
The North Atlantic ◽  
Lagenorhynchus Acutus

scholarly journals Capelin (Mallotus villosus) distribution and climate: a sea “canary” for marine ecosystem change

2005 ◽  
Vol 62 (7) ◽  
pp. 1524-1530 ◽  
Author(s):  
G.A. Rose
Keyword(s):  
Temperature Change ◽  
North Atlantic ◽  
Marine Ecosystem ◽  
Predatory Fish ◽  
Ecosystem Change ◽  
Monitoring Methods ◽  
Mallotus Villosus ◽  
The North ◽  
Capelin Mallotus Villosus ◽  
The North Atlantic

Abstract Capelin (Mallotus villosus) is a classic “r” adapted pelagic species that inhabits the northern boreal oceans at the margins of cold Arctic waters. The species originated in the North Pacific and colonized the North Atlantic at least once during interglacial periods of the past few million years. Capelin became the main forage species for many larger predatory fish, and also for seabirds and marine mammals. The colonizing abilities of capelin have been noted in historical anecdotes, typically in concert with climate variations. In this paper, all known shifts in distribution are catalogued. Shifts have taken place at the larval and adult stages, and some result in new spawning locations, others do not. Displacement distance relates to temperature change: log10(distancekm) = 0.28 × temperature change + 2.16 (p < 0.05, r2 = 0.91). The persistence of the shifts relates to the displacement distance: log10(persistencey) = 2.62 × log10(distancekm) − 6.56 (p < 0.05, r2 = 0.83). The quick and consistent response of capelin to temperature change, its importance to the North Atlantic foodweb, and established monitoring methods suggest this species as a sea “canary” for northern boreal marine ecosystem responses to climate variability and change.

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