The effect of food type (formulated diet vs. natural) and fish size on feed utilization in common sole,Solea solea(L.)

2017 ◽  
Vol 48 (9) ◽  
pp. 4696-4706 ◽  
Author(s):  
Stephan S W Ende ◽  
Saskia Kroeckel ◽  
Johan W Schrama ◽  
Oliver Schneider ◽  
Johan A J Verreth
2018 ◽  
Vol 31 ◽  
pp. 16 ◽  
Author(s):  
Stephan Siegfried Werner Ende ◽  
Rajko Thiele ◽  
Johan W. Schrama ◽  
Johan A.J. Verreth

We examined the influence of prey density and fish size on prey consumption in common sole (Solea solea L.) foraging on buried ragworm Alitta virens (Sars) (formerly known as Nereis virens (Sars)). The tested prey densities of 0.8, 2.2, 4.3 and 6.5 individuals dm−2 were exposed to common soles of either 100 g or 300 g. At each prey density common sole foraged for 48 h. At both common sole classes studied, a positive correlation between prey consumption and prey density was observed (P < 0.001). Relationships however differed between 100 and 300 g common sole. In 300 g common sole the relationship between prey consumption and prey density was linear (P < 0.001), whereas in 100 g common sole the relationship between prey density and prey eaten was polynomial (P = 0.018). Small common sole reached satiety prey consumption rates at nearly every prey density while large common sole did not reach satiation rates even at highest prey densities. The data suggest that in nature, polychaetes such as A. virens may contribute to the diet of small common sole even when they are only moderately abundant. In contrast, polychaetes may not be an ideal prey for larger common sole as indicated by the absence of satiety regardless of prey density.


2017 ◽  
Vol 34 (1) ◽  
pp. 111-116 ◽  
Author(s):  
S. S. W. Ende ◽  
J. W. Schrama ◽  
J. A. J. Verreth

Aquaculture ◽  
2015 ◽  
Vol 449 ◽  
pp. 87-93 ◽  
Author(s):  
Erika Bonvini ◽  
Luca Parma ◽  
Luciana Mandrioli ◽  
Rubina Sirri ◽  
Chiara Brachelente ◽  
...  

2010 ◽  
Vol 42 (3) ◽  
pp. 313-321 ◽  
Author(s):  
Pier Paolo Gatta ◽  
Luca Parma ◽  
Ilaria Guarniero ◽  
Luciana Mandrioli ◽  
Rubina Sirri ◽  
...  

2021 ◽  
Author(s):  
Walaa A. Shawky ◽  
Heba S. El‐Sayed ◽  
Norhan E. Saleh ◽  
Amany A. Ismael ◽  
Abdel‐Fattah M. El‐Sayed
Keyword(s):  

Author(s):  
J. W. Horwood ◽  
M. Greer Walker

Ovaries of the common sole (Solea solea (Linnaeus)) were collected prior to, or at the beginning of, spawning from the spawning grounds in the Bristol Channel. Size frequency distributions of oocytes over 100 μm are presented. They clearly show a break in the size frequency distributions, at about 170 μm, indicating that the production of new oocytes to be spawned that season had ceased. It indicates that the sole is a determinate spawner and that, at least for this population, an annual potential fecundity can be measured. Estimated annual fecundity at length of Bristol Channel sole is calculated, and values are compared with those found for sole from the North Sea, eastern English Channel and the Bay of Biscay.


2015 ◽  
Vol 46 (1) ◽  
pp. 1-5 ◽  
Author(s):  
Geoffrey K. Lines ◽  
Anthony Blume ◽  
Lara A. Ferry

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