scholarly journals Skate egg nursery areas support genetic diversity of Alaska and Aleutian Skates in the Bering Sea

2021 ◽  
Author(s):  
I Spies ◽  
JW Orr ◽  
DE Stevenson ◽  
P Goddard ◽  
G Hoff ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Bering Sea ◽  
Nursery Areas ◽  
The Bering Sea

scholarly journals Population structure in Arctic marine forests is shaped by diverse recolonisation pathways and far northern glacial refugia

2020 ◽  
Author(s):  
Trevor T. Bringloe ◽  
Heroen Verbruggen ◽  
Gary W. Saunders
Keyword(s):  
Genetic Diversity ◽  
Last Glacial Maximum ◽  
Bering Sea ◽  
Canadian Arctic ◽  
Species Distributions ◽  
Northwest Atlantic ◽  
Last Glacial ◽  
The Last Glacial Maximum ◽  
The Bering Sea ◽  
The Last Glacial

AbstractThe Arctic is experiencing a rapid shift towards warmer regimes, calling for a need to understand levels of biodiversity and ecosystem responses to climate cycles. This study examines marine refugial locations during the Last Glacial Maximum in order to link recolonization pathways to patterns of genetic diversity in Arctic marine forests. We present genetic data for 109 species of seaweed to infer community-level patterns, and hindcast species distributions during the Last Glacial Maximum to further pinpoint likely refugial locations. Sequence data revealed contiguous populations extending from the Bering Sea to the Northwest Atlantic, with high levels of genetic diversity in the East Canadian Arctic. One fifth of the species sampled appeared restricted to Arctic waters. Hindcasted species distributions highlighted refugia in the Bering Sea, Northwest Atlantic, South Greenland, and Europe. We hypothesize that Arctic coastal systems were recolonized from many geographically disparate refugia leading to enriched diversity levels in the East Canadian Arctic, with important contributions stemming from northerly refugia likely centered along Southern Greenland. Moreover, we hypothesize these northerly refugia likely played a key role in promoting polar endemic diversity, as reflected by abundant unique population haplotypes and endemic species in the East Arctic.Significance StatementOur work challenges the existing paradigm that marine Arctic ecosystems are depauperate extensions of southerly (temperate) communities established in the wake of recent glaciation, fundamentally changing how these systems should be viewed and interpreted. We forward novel hypotheses regarding the recent history of Arctic marine systems, particularly with regards to endemism being an integral feature of Arctic biomes, and present a firm framework for future evolutionary research in this system typically viewed as “ecologically immature.”

Preliminary isopach map of the Bering Sea basin

1976 ◽  
Author(s):  
Alan K. Cooper ◽  
K.A. Bailey ◽  
M. S. Marlow ◽  
D. W. Scholl ◽  
C.E. Carpenter
Keyword(s):  
Bering Sea ◽  
Isopach Map ◽  
The Bering Sea

Sonobuoy seismic data collected during 1982 in the Bering Sea

1982 ◽  
Author(s):  
A. K. Cooper ◽  
M. S. Marlow ◽  
Thomas O'Brien
Keyword(s):  
Bering Sea ◽  
Seismic Data ◽  
The Bering Sea

Aspidisca beringiana sp. nov. and Simbiodisca subgen. nov. (Ciliophora, Euplotida), a symbiont of terebellid polychaetes in the Bering Sea

2009 ◽  
Vol 18 (2) ◽  
pp. 184-190
Author(s):  
A.W. Jankowski
Keyword(s):  
Bering Sea ◽  
Tidal Zone ◽  
Generic Rank ◽  
New Subgenus ◽  
Bering Island ◽  
The Bering Sea

Terebellids in tidal zone of the Bering Island bear three new symbionts - rhabdophryid suctorians, peritrichs with small rosette-like colonies and aspidiscid hypotrich with a long peristome parallel to left body margin. This is the main feature of a new subgenus of the genus Aspidisca, named Simbiodisca. It may deserve the full generic rank if the use of protargol silvering method will not reveal any upper left rudiment of the peristomal membranelles.

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