Restratification of red king crab stock assessment areas in southeast Alaska

2002 ◽  
Author(s):  
J.E. Clark ◽  
S. Hinkley ◽  
T. Koeneman
Keyword(s):  
Stock Assessment ◽  
Red King Crab ◽  
Southeast Alaska ◽  
King Crab

scholarly journals On one model approach to stock assessment for red king crab Paralithodes camtschaticus on the shelf of West Kamchatka

2015 ◽  
Vol 182 (3) ◽  
pp. 38-47
Author(s):  
Oleg I. Ilyin ◽  
Pavel Yu. Ivanov
Keyword(s):  
Stock Assessment ◽  
Model Parameters ◽  
Red King Crab ◽  
Total Allowable Catch ◽  
King Crab ◽  
Direct Observations ◽  
Optimal Filtration ◽  
Joint Solution ◽  
Stock Recovery ◽  
Model Approach

A possible model approach to stock assessment of marine commercial invertebrates is discussed based on modeling of year-to-year dynamics for three functional groups (recruits, prerecruits, and commercial males). The model parameters are determined by joint solution of the tasks of optimal filtration and identification. As an example, this approach is used for assessment of the stock of king crab on the shelf of West Kamchatka. For this case, the data on actual catch are used obtained from reports of customs in Japan, Korea, USA, and China about the volume of crab products imported from Russia. The modeling confirms the conclusion from direct observations about rapid growth of the red king crab stock at West Kamchatka in recent years. Following to these results, the value of total allowable catch (TAC) can be substantially increased for this species. The officially recommended TAC of red king crab at West Kamchatka for 2016 is below of the 95 % confidence interval of the really possible catch. This value does not account the species stock recovery and hamper rational utilization of the valued natural resource.

Trophic niche of the invasive red king crab Paralithodes camtschaticus in a benthic food web

2017 ◽  
Vol 565 ◽  
pp. 113-129 ◽  
Author(s):  
MM Fuhrmann ◽  
T Pedersen ◽  
EM Nilssen
Keyword(s):  
Food Web ◽  
Trophic Niche ◽  
Red King Crab ◽  
Paralithodes Camtschaticus ◽  
King Crab ◽  
Benthic Food Web ◽  
Benthic Food

Did Processing Quota Damage Alaska Red King Crab Harvesters? Empirical Evidence

2008 ◽  
Vol 23 (3) ◽  
pp. 253-271 ◽  
Author(s):  
SCOTT C. MATULICH
Keyword(s):  
Empirical Evidence ◽  
Red King Crab ◽  
King Crab

Selecting species specific vitality metrics to predict red king crab (Paralithodes camtschaticus) discard survival

2021 ◽  
Vol 240 ◽  
pp. 105964
Author(s):  
Cory Lescher ◽  
Noëlle Yochum ◽  
Brad Harris ◽  
Nathan Wolf ◽  
John Gauvin
Keyword(s):  
Red King Crab ◽  
Paralithodes Camtschaticus ◽  
King Crab ◽  
Species Specific

scholarly journals Low allozyme heterozygosity in North Pacific and Bering Sea populations of red king crab (Paralithodes camtschaticus): adaptive specialization, population bottleneck, or metapopulation structure?

2011 ◽  
Vol 68 (3) ◽  
pp. 499-506 ◽  
Author(s):  
W. Stewart Grant ◽  
Susan E. Merkouris ◽  
Gordon H. Kruse ◽  
Lisa W. Seeb
Keyword(s):  
Bering Sea ◽  
North Pacific ◽  
Population Bottleneck ◽  
Ice Age ◽  
Red King Crab ◽  
Paralithodes Camtschaticus ◽  
Allozyme Diversity ◽  
King Crab ◽  
Metapopulation Structure ◽  
Adaptive Specialization

AbstractGrant, W. S., Merkouris, S. E., Kruse, G. H., and Seeb, L. W. 2011. Low allozyme heterozygosity in North Pacific and Bering Sea populations of red king crab (Paralithodes camtschaticus): adaptive specialization, population bottleneck, or metapopulation structure? – ICES Journal of Marine Science, 68: . Populations of red king crab in the North Pacific and Bering Sea have declined in response to ocean-climate shifts and to harvesting. An understanding of how populations are geographically structured is important to the management of these depressed resources. Here, the Mendelian variability at 38 enzyme-encoding loci was surveyed in 27 samples (n = 2427) from 18 general locations. Sample heterozygosities were low, averaging HE = 0.015 among samples. Weak genetic structure was detected among three groups of populations, the Bering Sea, central Gulf of Alaska, and Southeast Alaska, but without significant isolation by distance among populations. A sample from Adak Island in the western Aleutians was genetically different from the remaining samples. The lack of differentiation among populations within regions may, in part, be due to post-glacial expansions and a lack of migration-drift equilibrium and to limited statistical power imposed by low levels of polymorphism. Departures from neutrality may reflect the effects of both selective and historical factors. The low allozyme diversity in red king crab may, in part, be attributable to adaptive specialization, background selection, ice-age population bottlenecks, or metapopulation dynamics in a climatically unstable North Pacific.

scholarly journals Fishery-induced changes in Norwegian red king crab (Paralithodes camtschaticus) reproductive potential

2013 ◽  
Vol 71 (2) ◽  
pp. 365-373 ◽  
Author(s):  
Ann Merete Hjelset
Keyword(s):  
Egg Production ◽  
Barents Sea ◽  
Reproductive Potential ◽  
Size Composition ◽  
Red King Crab ◽  
Paralithodes Camtschaticus ◽  
King Crab ◽  
Males And Females ◽  
Induced Changes ◽  
Individual Fecundity

Abstract Hjelset, A. M. 2014. Fishery-induced changes in Norwegian red king crab (Paralithodes camtschaticus) reproductive potential. – ICES Journal of Marine Science, 71: 365–373. The introduced red king crab (Paralithodes camtschaticus) in the Barents Sea supports a valuable fishery in northern Norway. In this paper, I examine the effect of the increased harvest rate and the recently added female quota on the potential egg production of the stock. The size ranges of males and females in the period 1995–2011 were recorded, and estimated stock abundance of ovigerous females and established individual fecundity parameters from 2000–2007 were used to assess the reproductive potential of the stock from 1995–2011. The upper size ranges of males and females decreased throughout the period studied, presumably mainly due to fishing. The change in size composition among ovigerous females and functional mature males, and the reduced mean individual fecundity in the stock seem to have had a negative effect on the potential egg production of the stock.

Allocative Consequences of Pot Limits in the Bristol Bay Red King Crab Fishery: An Economic Analysis

1994 ◽  
Vol 14 (2) ◽  
pp. 307-317 ◽  
Author(s):  
Joshua A. Greenberg ◽  
Mark Herrmann
Keyword(s):  
Economic Analysis ◽  
Red King Crab ◽  
Bristol Bay ◽  
King Crab

Effects of the invasive red king crab (Paralithodes camtschaticus) on soft-bottom fauna in Varangerfjorden, northern Norway

2010 ◽  
Vol 41 (3) ◽  
pp. 467-479 ◽  
Author(s):  
Eivind Oug ◽  
Sabine K. J. Cochrane ◽  
Jan H. Sundet ◽  
Karl Norling ◽  
Hans C. Nilsson
Keyword(s):  
Bottom Fauna ◽  
Red King Crab ◽  
Paralithodes Camtschaticus ◽  
Soft Bottom ◽  
King Crab ◽  
Northern Norway
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