scholarly journals Hydrostatic pressure affects selective tidal stream transport in the North Sea brown shrimp (Crangon crangon)

2015 ◽  
Vol 218 (20) ◽  
pp. 3241-3248 ◽  
Author(s):  
M. Tielmann ◽  
S. Reiser ◽  
M. Hufnagl ◽  
J.-P. Herrmann ◽  
A. Eckardt ◽  
...  
Keyword(s):  
Hydrostatic Pressure ◽  
North Sea ◽  
Brown Shrimp ◽  
Crangon Crangon ◽  
The North ◽  
The North Sea ◽  
Tidal Stream ◽  
Selective Tidal Stream Transport ◽  
Stream Transport

scholarly journals Predictive framework for codend size selection of brown shrimp (Crangon crangon) in the North Sea beam-trawl fishery

PLoS ONE ◽  
2018 ◽  
Vol 13 (7) ◽  
pp. e0200464 ◽  
Author(s):  
Juan Santos ◽  
Bent Herrmann ◽  
Daniel Stepputtis ◽  
Claudia Günther ◽  
Bente Limmer ◽  
...  
Keyword(s):  
North Sea ◽  
Brown Shrimp ◽  
Beam Trawl ◽  
Crangon Crangon ◽  
Size Selection ◽  
Trawl Fishery ◽  
The North ◽  
Sea Beam ◽  
The North Sea ◽  
Selection Of

scholarly journals Tail Myonecrosis IN Brown Shrimp (Crangon crangon L.) Caught in the North Sea

2016 ◽  
Vol 154 (1) ◽  
pp. 93
Author(s):  
X. Vermeersch ◽  
A. Decostere ◽  
G. Vlaemynck ◽  
K. Chiers
Keyword(s):  
North Sea ◽  
Brown Shrimp ◽  
Crangon Crangon ◽  
The North ◽  
The North Sea

scholarly journals First report of an idiopathic partial tail myonecrosis in European brown shrimp Crangon crangon caught in the North Sea

2020 ◽  
Vol 138 ◽  
pp. 35-40
Author(s):  
XHC Vermeersch ◽  
A Decostere ◽  
G Vlaemynck ◽  
K Chiers
Keyword(s):  
North Sea ◽  
Distal Part ◽  
Brown Shrimp ◽  
Bacterial Invasion ◽  
Microscopical Examination ◽  
Necrotic Tissue ◽  
Crangon Crangon ◽  
Important Species ◽  
The North ◽  
The North Sea

The European brown shrimp Crangon crangon is an abundant and commercially important species in the North Sea. Currently, there is interest in landing live shrimp to provide fresh animals for a growing market in live brown shrimp. During 4 survival studies between 2014 and 2016, shrimp were collected from commercial trawlers and maintained alive in off-shore facilities. From Day 1 onwards, a minority of shrimp (~2.24%) developed a white discoloration of the abdominal muscles and a depigmentation of the distal part of the abdomen, along with paralysis of the affected tissues and appendages. As the symptoms progressed, a circumferential blackish delineation appeared, creating a distinct boundary between healthy and necrotic tissue. Affected shrimp survived up to 3 wk, although in several animals the distal part of the tail was completely lost. Histological and electron microscopical examination confirmed the myonecrosis. A secondary bacterial invasion of the necrotic muscle was observed in some animals. RT-PCR for infectious myonecrosis virus was negative. The condition appears not to be contagious, based on the feeding of healthy shrimp with necrotic tissue of affected shrimp. Based on these observations, a mechanical cause inflicted during the catching process is proposed.

scholarly journals Shell disease does not affect biochemical profiles of the North Sea brown shrimp Crangon crangon

2020 ◽  
Vol 141 ◽  
pp. 117-126
Author(s):  
A Segelken-Voigt ◽  
W Hagen ◽  
G Gerlach ◽  
J Strahl
Keyword(s):  
Nutritional Value ◽  
Essential Fatty Acids ◽  
Brown Shrimp ◽  
Hepatosomatic Index ◽  
Crangon Crangon ◽  
The North ◽  
The North Sea ◽  
Shell Disease ◽  
Biochemical Profiles ◽  
Atlantic Coastal

The brown shrimp Crangon crangon is a key component of the North Atlantic coastal food web and an important target species for the fishery economy. As the brown shrimp contains large amounts of protein and essential fatty acids, its consumption makes it a beneficial choice for humans. Commercially harvested crustaceans like C. crangon are frequently affected by bacterial shell disease, with necrotizing erosions and ulcerations of the cuticle. To determine whether shell disease influences the nutritional value of C. crangon, total protein and lipid contents, as well as fatty acid compositions of muscle tissue and hepatopancreas, together with the hepatosomatic index, were examined in healthy and affected individuals. The biochemical composition of the tissues did not differ significantly between the 2 groups. Also, the hepatosomatic index, as an indicator of energy reserves in shrimps, was similar between healthy and affected animals. Our results indicate that the nutritional value of C. crangon is not affected by shell disease, as long as it remains superficial as in the present study.

Short-term effect of pulsed direct current on various species of adult fish and its implication in pulse trawling for brown shrimp in the North Sea

2016 ◽  
Vol 179 ◽  
pp. 90-97 ◽  
Author(s):  
Marieke Desender ◽  
Koen Chiers ◽  
Hans Polet ◽  
Bart Verschueren ◽  
Jimmy H. Saunders ◽  
...  
Keyword(s):  
North Sea ◽  
Direct Current ◽  
Term Effect ◽  
Brown Shrimp ◽  
Adult Fish ◽  
Short Term ◽  
Short Term Effect ◽  
The North ◽  
The North Sea ◽  
Pulsed Direct Current

The energetics of migration by selective tidal stream transport: an analysis for plaice tracked in the southern North Sea

1990 ◽  
Vol 70 (1) ◽  
pp. 149-162 ◽  
Author(s):  
J. D. Metcalfe ◽  
G. P. Arnold ◽  
P. W. Webb
Keyword(s):  
North Sea ◽  
Spawning Grounds ◽  
Southern North Sea ◽  
Sea Use ◽  
Tidal Stream ◽  
Selective Tidal Stream Transport ◽  
Stream Transport ◽  
Save Energy ◽  
Feeding Grounds ◽  
Summer Feeding

Adult plaice (Pleuronectes platessa L.) in the southern North Sea use selective tidal stream transport to migrate between their summer feeding grounds and winter spawning grounds. The fish come up into midwater when the tidal stream is flowing in one direction, but remain on the bottom when it is flowing in the opposite direction. This behaviour can theoretically save energy, which can be used for growth or reproduction. Alternatively, it may provide a transport system by means of which fish that have no ability to navigate over long distances can be conveyed reliably between their feeding grounds and spawning grounds.

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