Arctic Research Directory

ID-104 :   Multi-ensemble distribution modeling of marine taxa in the Pacific Arctic




Multi-ensemble distribution modeling of marine taxa in the Pacific Arctic


We are constructing multi-ensemble models for major fish and invertebrate taxa in the Pacific Arctic to elucidate the impacts of contemporary and future climatic changes to species distributions. Data from NOAA bottom trawl surveys, satellite and CMIP5 climate model outputs were used for the analyses.

Principal Investigator

Takafumi Hirata
Arctic Research Center, Hokkaido University

Data Information

Model Name
Biomod2 species distribution models (SDMs)
Abstract (Brief description of the experiment contents (initial conditions, boundary conditions, etc.))
(1) These data are generated from the Biomod2 multi-ensemble SDMs for 21 fish and invertebrate species in the Eastern Bering Sea, between 1993 and 2016. The spatial resolution is at 25-km and covers the continental shelves of the Pacific Arctic (180-203E; 52-70N). A total of 10 SDMs was developed using species-specific occurrences from NOAA bottom trawl surveys and environmental parameters (depth and winter averages of sea surface temperature and seaice concentration). The analyses were conducted to explore the impacts of contemporary climatic changes to distribution of marine assemblages in the study area. (2) Multi-model ensemble of species-specific distributions provide robust information on species' distributional ranges throughout the Easten Bering and Southern Chukch Seas. These data allow further alayses of the rates of distributional shift between recent climatic regimes in the Pacific Arctic, characterised by prolonged stanzas of warming and cooling. (3) The dataset also provides insights as to the relative sensitivity of individual taxon to warming and cooling events (based on the changes in species' potential habitat), thereby aiding the identification of likely 'winners' and 'losers' under contrasting climatic regimes. This highlights relevant implications on conservation and resource management of targeted marine taxa under the emerging threats of on-going and future climatic changes. (4) Total size of this dataset is 12.7 MB.
Temporal Extent
Begin Date1993-01-01
End Date2016-12-31
Temporal Characteristicsannual
Geographic Bounding Box
North bound latitude72.0
West bound longitude180.0
Eastbound longitude203.0
South bound latitude50.0
Dimension NameDimension Size (slice number of the dimension)Resolution Unit
row920.25 (deg)
column720.25 (deg)
vertical241993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 (year)
Data Information
Related URL
Article (the article written using this data)
Alabia ID, Garcia Molinos J, Saitoh S-I, Hirawake T, Hirata T, Mueter FJ. Distribution shifts of marine taxa in the Pacific Arctic under contemporary climate changes. Diversity and Distributions 2018; 24: 1583-1597.


RollContact PersonNameIrene D. AlabiaAffiliationHokkaido
Data Registration
07:16 on Wed December 21, 2016
Last Update
02:42 on Tue December 17, 2019