(228) SchMrfe, J. 1951b. 



Zur Frage der Fischscheuchung durch 

 Lotschall (On t±ie question of frightening 

 fish through echo -sounding) . Ibid. , Heft 

 2, S. 30-31. Translation 3 pp . by A. H. 

 Leim and J . Welch, available ABS . Also 

 translation 3 pp. by John R. Smith, avail- 

 able SHD; and translation summary 2 pp. 

 by G . Mares, available PBS . 



(229) SchMrfe, J. 1951c. 

 Fischwanderungen im Grossen P15ner See 

 wMhrend einer Tagesperiode dargestellt 

 an Echogrammen (Fish movements in the 

 Great Ploener Lake during a one -day 

 period as shown on echograms). Arch. 

 Fischereiwissenschaft, 3Jahrg., Heft 3/4, 

 S. 135-146. Translation 7 pp. by John 

 Smith, available SHD . 



(230) SchMrfe, J. 1952a. 



Ueber Form und Grosse des Wirkbereis- 

 ches bei Echolotungen (On the form and 

 size of the area of range for echo -sound- 

 ings) . Fischei .^vv-zelt. 4 Jahrg. , Heft 2, S „ 

 6-8. Translation 5 pp. by Irene Anderson, 

 available SHD. Also translation 8 pp.by 

 G . Mares, available PBS . 



(231) SchMrfe, J. 1952b. 

 Besonderheiten bei Echolotungen (iber 

 unebenem Grund (Special points arising 

 during echosounding over an uneven seabed) 

 Ibid. , Hefty, S. 99-101. Translation 6 pp. 

 Irene Anderson, available SHD. Also 

 translation 7 pp. by G. Mares, available 

 PBS. 



(232) SchMrfe, J, 1952c. 

 Unterwasserbeobachtungen an einem 

 Schleppnetzmodell (Underwater observa- 

 tions of a trawl model). Ibid. , Heft 8, S. 

 129-130. Translation 4 pp. by Irene 

 Anderson, available SHD 



(233) SchMrfe, J. 1952d. 

 Ueber das Verhalten von Fischen 

 gegenllber klinstlichem Licht (Concern- 

 ing the reaction of fish to artificial 

 light) Ibid. , Heft 9, S. 161-162. 

 Translation 5 pp. by Irene 7\nderson, 

 available SHD . 



(234) SchMrfe, J, 1953a. 

 GerMte zur Messung an Schleppnetzen 



(Measuring apparatuses on trawl-nets) , 

 Fischwirtschaft, 5 Jahrg., Heft 1, S. 

 18-20. Translation 7 pp. by Irene 

 Anderson, available SHD. 



(235) SchMrfe, J. 1953b. 

 GerMte zur Messung an Schleppnetzen 



( Measuring apparatuses on trawl-nets). 

 Ibid. , Heft 2, S. 48-49. Translation 

 4 pp. by Irene Anderson, available SHD. 



(236) SchMrfe, J. 1953c. 

 GleichmMssige Langeneinstellung der 

 Kurrleinen bei ausgesetztem Geschirr 

 durch Zugmessungen (Equal -length 

 regulation of trawling-net lines, with 

 the apparatus let down by means of 

 measuring the tensile strain) . Ibid. , 

 S. 50-51. Translation 4 pp. by Mary 

 Robson, available SHD. 



(237) SchMrfe, J. 1953d. 

 Schreibanzeige und Sichtanzeige bei 



by Schallortung von Fischen in BodennMhe 

 (Written and visual indications in con- 

 nection withj±ie location of fish near 

 the seabed /by means of sounding_/). 

 Ibid. , Heft 3^ S 75-77. Translation 

 4 pp. by Irene Anderson, available SHD. 

 Also translation 6 pp. by G , Mares, 

 available PBS . 



(238) SchMrfe, J ^^ 1953e. 



Messung der Offnungshtihe von Schlepp- 

 netzen mit Echolot (Measuring the 

 height of the mouth of trawls by echo- 

 sounder) . Ibid. , Heft 12, S- 282-284. 

 Translation 4 pp . by Mary Robson, 

 available SHD. 



22 



