Variation in the distribution of yellowfin sole Limanda aspera larvae in warm and cold years in the eastern Bering Sea

2021 ◽  
Author(s):  
Steven M. Porter
Keyword(s):  
Bering Sea ◽  
Eastern Bering Sea ◽  
Yellowfin Sole ◽  
Limanda Aspera

Availability of yellowfin sole Limanda aspera to the eastern Bering Sea trawl survey and its effect on estimates of survey biomass

2019 ◽  
Vol 211 ◽  
pp. 319-330 ◽  
Author(s):  
Daniel G. Nichol ◽  
Stan Kotwicki ◽  
Thomas K. Wilderbuer ◽  
Robert R. Lauth ◽  
James N. Ianelli
Keyword(s):  
Bering Sea ◽  
Trawl Survey ◽  
Eastern Bering Sea ◽  
Yellowfin Sole ◽  
Limanda Aspera

Contrasting the variability in spatial distribution of two juvenile flatfishes in relation to thermal stanzas in the eastern Bering Sea

2019 ◽  
Vol 77 (3) ◽  
pp. 953-963
Author(s):  
Cynthia Yeung ◽  
Daniel W Cooper
Keyword(s):  
Spatial Distribution ◽  
Bering Sea ◽  
Thermal Environment ◽  
Bottom Temperature ◽  
Eastern Bering Sea ◽  
Northward Expansion ◽  
Yellowfin Sole ◽  
Temperature Indices ◽  
Limanda Aspera ◽  
The Bering Sea

Abstract Groundfish species in the Bering Sea are undergoing pronounced changes in spatial distribution and abundance due to warming ocean temperatures. The main drivers of interannual variability in this ecosystem are the alternating warm and cold thermal stanzas. Yellowfin sole (Limanda aspera; YFS) and northern rock sole (Lepidopsetta polyxystra; NRS) are commercially-valuable flatfishes in the Bering Sea and are among the most dominant groundfish species there in numbers and biomass. We examined the variability in the spatial distribution and abundance of juvenile NRS and YFS in relation to the ice and temperature conditions associated with warm-cold thermal shifts from 1982 to 2017. The goal was to assess the implications of the fluctuating thermal environment for Bering Sea flatfish production. We found ice cover and bottom temperature indices in the preceding 1 to 3 years to be the best predictors of NRS juvenile distribution. In contrast, these indices were not significantly correlated with YFS juvenile distribution, which could be an artifact of their relatively low availability to sampling. A warm stanza, as the Bering Sea is currently in, is expected to favor high numbers of NRS juveniles and the northward expansion of their distribution.

A Cost-Benefit Method for Determining Optimum Closed Fishing Areas to Reduce the Trawl Catch of Prohibited Species

1984 ◽  
Vol 41 (1) ◽  
pp. 93-98 ◽  
Author(s):  
David A. Somerton ◽  
Jeffrey June
Keyword(s):  
Bering Sea ◽  
Cost Benefit ◽  
King Crab ◽  
Research Survey ◽  
Eastern Bering Sea ◽  
Yellowfin Sole ◽  
Survey Estimates ◽  
Paralithodes Camtschatica ◽  
Limanda Aspera ◽  
Trawl Fisheries

Red king crab (Paralithodes camtschatica), a prohibited species, are incidentally caught by United States trawl fisheries for yellowfin sole (Limanda aspera) and other groundfish in the eastern Bering Sea. To reduce this incidental catch, we propose a method for determining a king crab conservation zone where trawling would be prohibited. This method considers the gross revenue potentially gained by the yellowfin sole fishery and lost by the king crab fishery by allowing trawling in each of a number of equal-size areas. Utilizing exvessel prices and research survey estimates of species densities, areas are assigned relative values equal to the value of groundfish minus the value of king crab. By including all areas with negative relative values in the conservation zone, the potential gross revenue that could be obtained from the groundfish and king crab resource is maximized.

Otolith biochronologies reveal latitudinal differences in growth of Bering Sea yellowfin sole Limanda aspera

Polar Biology ◽  
2016 ◽  
Vol 39 (12) ◽  
pp. 2427-2439 ◽  
Author(s):  
Mary Elizabeth Matta ◽  
Thomas E. Helser ◽  
Bryan A. Black
Keyword(s):  
Bering Sea ◽  
Yellowfin Sole ◽  
Limanda Aspera

Associations between flatfish abundance and surficial sediments in the eastern Bering Sea

2000 ◽  
Vol 57 (12) ◽  
pp. 2410-2419 ◽  
Author(s):  
Robert A McConnaughey ◽  
Keith R Smith
Keyword(s):  
Bering Sea ◽  
Food Habits ◽  
Prey Availability ◽  
Sediment Type ◽  
Trawl Survey ◽  
Surficial Sediments ◽  
Sediment Properties ◽  
Eastern Bering Sea ◽  
Yellowfin Sole ◽  
Hippoglossoides Elassodon

Spatially explicit relationships between pleuronectid flatfish abundance and surficial sediments in the eastern Bering Sea were investigated using published sediment descriptions and trawl survey data (1982-1994). Flatfish food habits were also examined because sediment properties are known to affect the distribution and abundance of benthic prey. For six species, we compared sediment textures in areas of highest and lowest abundance (kilograms per hectare). Sand predominated in areas of high yellowfin sole (Pleuronectes asper) (YFS) (p << 0.001) and rock sole (Lepidopsetta spp.) (RS) (p << 0.001) abundance, while mixed sand and mud was most common in areas of lowest abundance. In contrast, mixed sand and mud predominated in areas preferred by flathead sole (Hippoglossoides elassodon) (FHS) (p << 0.001), Alaska plaice (Pleuronectes quadrituberculatus) (AP) (p = 0.002), and arrowtooth flounder (Atheresthes stomias) (ATF) (p = 0.004), with more diverse substrates in low-density areas. Areas of high and low Greenland turbot (Reinhardtius hippoglossoides) (GT) (p = 0.845) abundance had similar sediment textures (primarily mixed sand and mud). Species with highly restricted diets (AP) or piscivores with weak sediment associations (GT, ATF) had relatively inflexible food habits, whereas YFS, RS, and FHS food habits varied considerably with sediment type. Our findings suggest that benthic-feeding pleuronectids prefer certain sediment textures because of adaptive differences in prey availability.

scholarly journals Long-term dynamics and current state of yellowfin sole Limanda aspera stocks in the waters of Sakhalin Island

2014 ◽  
Vol 178 (3) ◽  
pp. 25-57
Author(s):  
Alexander O. Zolotov ◽  
Alexander V. Smirnov ◽  
Lev N. Baranchuk-Chervonny ◽  
Anna Yu. Dubinina
Keyword(s):  
Bering Sea ◽  
Sakhalin Island ◽  
Secondary Importance ◽  
The North ◽  
Current State ◽  
Large Populations ◽  
Yellowfin Sole ◽  
Limanda Aspera ◽  
The North Pacific

Commercial stocks of two yellowfin sole populations on the western and eastern shelves of Sakhalin Island are assessed by VPA method using the data on their size-age structure and fishery statistics for 1950-2013. Results of the assessment are compared with the data of bottom trawl surveys conducted in 2000-2013. The yellowfin sole at Sakhalin Island had two periods of high abundance: in the 1950-1960s and in the 1985-1995, but its stocks decreased in the 1970-1980 and after the middle 1990s. This dynamics is similar to the dynamics of other large populations of yellowfin sole in the North Pacific - in the southeastern and western Bering Sea and on the shelf of West Kamchatka. All these changes are caused by natural reasons; fishery has secondary importance and affects on the populations in times of low stock only.

Lymphocystis Disease in Yellowfin Sole (Limanda aspera) in the Bering Sea

1977 ◽  
Vol 34 (5) ◽  
pp. 611-616 ◽  
Author(s):  
C. E. Alpers ◽  
B. B. McCain ◽  
M. S. Myers ◽  
S. R. Wellings
Keyword(s):  
Virus Infection ◽  
Bering Sea ◽  
Fish Disease ◽  
Electron Microscopic ◽  
Virus Particles ◽  
Lymphocystis Disease ◽  
Microscopic Studies ◽  
Yellowfin Sole ◽  
Limanda Aspera ◽  
The Bering Sea

A study to determine the prevalence of fish disease in the Bering Sea revealed lymphocystis disease in yellowfin sole (Limanda aspera). The gross pathology and histopathology of typical nodules are described. Electron microscopic studies revealed characteristic icosahedral lymphocystis virus particles, as well as clusters of intracellular structures of uncertain origin. This study begins a larger effort to understand the effects of an altered marine environment upon the biology of lymphocystis virus infection in the Bering Sea. Key words: lymphocystis, pleuronectids, yellowfin sole, Bering Sea, flatfish.

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