Understanding the life cycle of North Sea brown shrimp Crangon crangon: a simulation model approach

2017 ◽  
Vol 584 ◽  
pp. 119-143 ◽  
Author(s):  
A Temming ◽  
C Günther ◽  
C Rückert ◽  
M Hufnagl
Keyword(s):  
Life Cycle ◽  
Simulation Model ◽  
North Sea ◽  
Brown Shrimp ◽  
Crangon Crangon ◽  
Model Approach

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

Organotins in North Sea brown shrimp (Crangon crangon L.) after implementation of the TBT ban

Chemosphere ◽  
2012 ◽  
Vol 86 (10) ◽  
pp. 979-984 ◽  
Author(s):  
Y. Verhaegen ◽  
E. Monteyne ◽  
T. Neudecker ◽  
I. Tulp ◽  
G. Smagghe ◽  
...  
Keyword(s):  
North Sea ◽  
Brown Shrimp ◽  
Crangon Crangon

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.

Microplastic contamination in brown shrimp (Crangon crangon, Linnaeus 1758) from coastal waters of the Southern North Sea and Channel area

2015 ◽  
Vol 98 (1-2) ◽  
pp. 179-187 ◽  
Author(s):  
Lisa I. Devriese ◽  
Myra D. van der Meulen ◽  
Thomas Maes ◽  
Karen Bekaert ◽  
Ika Paul-Pont ◽  
...  
Keyword(s):  
North Sea ◽  
Coastal Waters ◽  
Brown Shrimp ◽  
Crangon Crangon ◽  
Southern North Sea

scholarly journals Not easy to catch: multiple covariates influence catch rates of brown shrimp (Crangon crangon L.), potentially affecting inferences drawn from catch and landings data

2018 ◽  
Vol 75 (4) ◽  
pp. 1318-1328 ◽  
Author(s):  
Katharina Friederike Schulte ◽  
Andreas Dänhardt ◽  
Marc Hufnagl ◽  
Volker Siegel ◽  
Werner Wosniok ◽  
...  
Keyword(s):  
North Sea ◽  
Stock Assessment ◽  
Brown Shrimp ◽  
Catch Per Unit Effort ◽  
Crangon Crangon ◽  
Reproductive State ◽  
Factors Affecting ◽  
Southern North Sea ◽  
Unit Effort ◽  
Catch Rates

Abstract Brown shrimps (Crangon crangon) occur in high densities in the southern North Sea and support a large, but so far unmanaged fishery with >500 vessels. Cohort-based stock assessment is not possible, and catch per unit effort from scientific surveys and commercial landings are the only variables collected. Landings per unit effort are currently used to approximate the state of stock and to trigger catch restrictions, but, although decisive in interpreting unit catches or landings, factors affecting catch rates are rarely understood. Using data from two long-term (1997–2010) scientific surveys conducted in autumn and winter, respectively, in the southern North Sea and from a vertically resolving stow net deployed at two stations in the German Wadden Sea (2005–2007), we investigate the effects of season, reproductive state, size, tidal state, daylight, and water depth on catch rates of brown shrimp. Log-linear random intercept models revealed an influence of all factors examined on the catch rate. Depth had a clear effect on the composition of size and reproductive state, supporting the hypothesis that brown shrimp utilize selective tidal stream transport to migrate to depths preferred during certain periods within their life cycle. The vertical distribution of brown shrimp across the water column revealed that on average two thirds to three quarters of the brown shrimps were located above reach of the standard shrimp catching gear. Our findings indicate that multiple factors and interactions affect catch rates of brown shrimp and, thus, need to be accounted for when interpreting unit catches or landings for management purposes. We suggest that brown shrimps are not primarily demersal, and that stock size estimates solely relying on beam trawl data may underestimate the true density of shrimps per area.

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