Spatial distribution analysis of the North Pacific spiny dogfish,Squalus suckleyi, in the North Pacific using generalized additive models

2017 ◽  
Vol 26 (6) ◽  
pp. 668-679 ◽  
Author(s):  
Toshikazu Yano ◽  
Seiji Ohshimo ◽  
Minoru Kanaiwa ◽  
Tsutomu Hattori ◽  
Masa-aki Fukuwaka ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
North Pacific ◽  
Generalized Additive Models ◽  
Additive Models ◽  
Spiny Dogfish ◽  
Distribution Analysis ◽  
The North ◽  
The North Pacific

An ensemble analysis to predict future habitats of striped marlin (Kajikia audax) in the North Pacific Ocean

2013 ◽  
Vol 70 (5) ◽  
pp. 1013-1022 ◽  
Author(s):  
Nan-Jay Su ◽  
Chi-Lu Sun ◽  
André E. Punt ◽  
Su-Zan Yeh ◽  
Gerard DiNardo ◽  
...  
Keyword(s):  
Climate Change ◽  
Pacific Ocean ◽  
Water Temperature ◽  
North Pacific ◽  
North Pacific Ocean ◽  
Additive Models ◽  
The North ◽  
The Impact ◽  
The North Pacific ◽  
Ensemble Analysis

Abstract Su, N.-J., Sun, C.-L., Punt, A. E., Yeh, S.-Z., DiNardo, G., and Chang, Y.-J. 2013. An ensemble analysis to predict future habitats of striped marlin (Kajikia audax) in the North Pacific Ocean. – ICES Journal of Marine Science, 70: 1013–1022. Striped marlin is a highly migratory species distributed throughout the North Pacific Ocean, which shows considerable variation in spatial distribution as a consequence of habitat preference. This species may therefore shift its range in response to future changes in the marine environment driven by climate change. It is important to understand the factors determining the distribution of striped marlin and the influence of climate change on these factors, to develop effective fisheries management policies given the economic importance of the species and the impact of fishing. We examined the spatial patterns and habitat preferences of striped marlin using generalized additive models fitted to data from longline fisheries. Future distributions were predicted using an ensemble analysis, which represents the uncertainty due to several global climate models and greenhouse gas emission scenarios. The increase in water temperature driven by climate change is predicted to lead to a northward displacement of striped marlin in the North Pacific Ocean. Use of a simple predictor of water temperature to describe future distribution, as in several previous studies, may not be robust, which emphasizes that variables other than sea surface temperatures from bioclimatic models are needed to understand future changes in the distribution of large pelagic species.

scholarly journals Trends and Variability of North Pacific Polar Lows

2013 ◽  
Vol 2013 ◽  
pp. 1-11 ◽  
Author(s):  
Fei Chen ◽  
Hans von Storch
Keyword(s):  
Spatial Distribution ◽  
North Pacific ◽  
Canonical Correlation ◽  
Decadal Variability ◽  
Observational Evidence ◽  
Positive Trend ◽  
Mean Flow ◽  
Polar Lows ◽  
The North ◽  
The North Pacific

The 6-hourly 1948–2010 NCEP 1 reanalyses have been dynamically downscaled for the region of the North Pacific. With a detecting-and-tracking algorithm, the climatology of North Pacific Polar Lows has been constructed. This derived climatology is consistent with the limited observational evidence in terms of frequency and spatial distribution. The climatology exhibits strong year-to-year variability but weak decadal variability and a small positive trend. A canonical correlation analysis describes the conditioning of the formation of Polar Lows by characteristic seasonal mean flow regimes, which favor, or limit, cold air outbreaks and upper air troughs.

scholarly journals New data on the distribution and size composition of the North Pacific spiny dogfish Squalus suckleyi (Girard, 1854)

2011 ◽  
Vol 76 (1) ◽  
pp. 111-122 ◽  
Author(s):  
Alexei M. Orlov ◽  
Vadim F. Savinykh ◽  
Eugeny F. Kulish ◽  
Dmitry V. Pelenev
Keyword(s):  
North Pacific ◽  
Size Composition ◽  
Spiny Dogfish ◽  
The North ◽  
The North Pacific

scholarly journals Schemes of multi-parameter stations in the Bering and Chukchi Seas and North Pacific made in research cruises of TINRO (1986–2019)

2020 ◽  
Vol 200 (4) ◽  
pp. 1028-1039
Author(s):  
A. F. Volkov
Keyword(s):  
Spatial Distribution ◽  
North Pacific ◽  
The North ◽  
The North Pacific ◽  
Made In

Spatial distribution of stations made in research expeditions conducted by Pacific Res. Inst. of Fisheries and Oceanography (TINRO) in the Bering and Chukchi Seas and in the North Pacific in 1986–2019 is discussed. Schemes of the stations for every cruise are presented and sorted by decades, years, seasons, and months. The data sufficiency is estimated at regional and temporal levels by calculation of the stations number in the daytime and nighttime, per years, per seasons, and per biostatistical areas.

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