"V\u00FDb\u011Brovost ko\u0159isti \u0161tikou obecnou (Esox lucius), cand\u00E1tem obecn\u00FDm (Sander lucioperca) a okounem \u0159\u00ED\u010Dn\u00EDm (Perca fluviatilis) v experiment\u00E1ln\u00EDch podm\u00EDnk\u00E1ch" . . "CZ - \u010Cesk\u00E1 republika" . . . . "Ad\u00E1mek, Zden\u011Bk" . "Prey selectivity in pike (Esox lucius), zander (Sander lucioperca) and perch (Perca fluviatilis) under experimental conditions"@en . . . "Z(MSM6007665809)" . . . "45-47" . . "2"^^ . "RIV/60076658:12610/06:00006914" . "507219" . "0007-389X" . "Bulletin V\u00DARH Vod\u0148any" . . . . . "Opa\u010Dak, A." . . "1"^^ . "V\u00FDb\u011Brovost ko\u0159isti \u0161tikou obecnou (Esox lucius), cand\u00E1tem obecn\u00FDm (Sander lucioperca) a okounem \u0159\u00ED\u010Dn\u00EDm (Perca fluviatilis) v experiment\u00E1ln\u00EDch podm\u00EDnk\u00E1ch"@cs . . "Prey selectivity in pike (Esox lucius), zander (Sander lucioperca) and perch (Perca fluviatilis) under experimental conditions"@en . "C\u00EDlem studie bylo porovnat v\u00FDb\u011Brovost ko\u0159isti na\u0161imi t\u0159emi v\u00FDznamn\u00FDmi drav\u00FDmi rybami v situaci, kdy ko\u0159ist nem\u00E1 mo\u017Enost se ukr\u00FDt nebo jinak p\u0159ed dravcem uniknout. Smyslem pokus\u016F tak bylo vyhodnotit, zda jsou n\u011Bkter\u00E9 druhy potravn\u00EDch ryb dravci pozitivn\u011B selektov\u00E1ny ji\u017E s ohledem na jejich morfologii, utv\u00E1\u0159en\u00ED t\u011Bla \u010Di jin\u00E9 vlastnosti. Zvl\u00E1\u0161tn\u00ED pozornost byla v tomto sm\u011Bru v\u011Bnov\u00E1na invazn\u00EDmu druhu - st\u0159evli\u010Dce v\u00FDchodn\u00ED (Pseudorasbora parva) s ohledem na perspektivy redukce \u010Di eliminace jej\u00EDho ne\u017E\u00E1douc\u00EDho v\u00FDskytu, p\u0159\u00EDpadn\u011B vyu\u017Eit\u00ED jako potravn\u00ED ryby. Pokusy prob\u011Bhly v laboratorn\u00EDch podm\u00EDnk\u00E1ch ve 100 litrov\u00FDch lepen\u00FDch akv\u00E1ri\u00EDch bez jak\u00FDchkoliv vnit\u0159n\u00EDch instalac\u00ED, tak\u017Ee ko\u0159istn\u00ED ryby byly trvale dravc\u016Fm dostupn\u00E9 bez omezen\u00ED. Potravn\u00ED ryby ve velikosti odpov\u00EDdaj\u00EDc\u00ED p\u0159ibli\u017En\u011B 50 a m\u00E9n\u011B % celkov\u00E9 d\u00E9lky pokusn\u00FDch ryb - ro\u010Dka \u0161tiky (39-53% TL), ro\u010Dka cand\u00E1ta (24-37% TL) a dvoulet\u00E9ho okouna (37-51% TL) byly p\u0159edkl\u00E1d\u00E1ny ve skupin\u00E1ch po 30 - 50 kusech drav\u00FDm ryb\u00E1m poch\u00E1zej\u00EDc\u00EDm z rybni\u010Dn\u00EDho chovu. Po dobu dese"@cs . "V\u00FDb\u011Brovost ko\u0159isti \u0161tikou obecnou (Esox lucius), cand\u00E1tem obecn\u00FDm (Sander lucioperca) a okounem \u0159\u00ED\u010Dn\u00EDm (Perca fluviatilis) v experiment\u00E1ln\u00EDch podm\u00EDnk\u00E1ch"@cs . . "V\u00FDb\u011Brovost ko\u0159isti \u0161tikou obecnou (Esox lucius), cand\u00E1tem obecn\u00FDm (Sander lucioperca) a okounem \u0159\u00ED\u010Dn\u00EDm (Perca fluviatilis) v experiment\u00E1ln\u00EDch podm\u00EDnk\u00E1ch" . . "C\u00EDlem studie bylo porovnat v\u00FDb\u011Brovost ko\u0159isti na\u0161imi t\u0159emi v\u00FDznamn\u00FDmi drav\u00FDmi rybami v situaci, kdy ko\u0159ist nem\u00E1 mo\u017Enost se ukr\u00FDt nebo jinak p\u0159ed dravcem uniknout. Smyslem pokus\u016F tak bylo vyhodnotit, zda jsou n\u011Bkter\u00E9 druhy potravn\u00EDch ryb dravci pozitivn\u011B selektov\u00E1ny ji\u017E s ohledem na jejich morfologii, utv\u00E1\u0159en\u00ED t\u011Bla \u010Di jin\u00E9 vlastnosti. Zvl\u00E1\u0161tn\u00ED pozornost byla v tomto sm\u011Bru v\u011Bnov\u00E1na invazn\u00EDmu druhu - st\u0159evli\u010Dce v\u00FDchodn\u00ED (Pseudorasbora parva) s ohledem na perspektivy redukce \u010Di eliminace jej\u00EDho ne\u017E\u00E1douc\u00EDho v\u00FDskytu, p\u0159\u00EDpadn\u011B vyu\u017Eit\u00ED jako potravn\u00ED ryby. Pokusy prob\u011Bhly v laboratorn\u00EDch podm\u00EDnk\u00E1ch ve 100 litrov\u00FDch lepen\u00FDch akv\u00E1ri\u00EDch bez jak\u00FDchkoliv vnit\u0159n\u00EDch instalac\u00ED, tak\u017Ee ko\u0159istn\u00ED ryby byly trvale dravc\u016Fm dostupn\u00E9 bez omezen\u00ED. Potravn\u00ED ryby ve velikosti odpov\u00EDdaj\u00EDc\u00ED p\u0159ibli\u017En\u011B 50 a m\u00E9n\u011B % celkov\u00E9 d\u00E9lky pokusn\u00FDch ryb - ro\u010Dka \u0161tiky (39-53% TL), ro\u010Dka cand\u00E1ta (24-37% TL) a dvoulet\u00E9ho okouna (37-51% TL) byly p\u0159edkl\u00E1d\u00E1ny ve skupin\u00E1ch po 30 - 50 kusech drav\u00FDm ryb\u00E1m poch\u00E1zej\u00EDc\u00EDm z rybni\u010Dn\u00EDho chovu. Po dobu dese" . . "42" . . "1" . "Prey; selectivity; Esox lucius; Sander lucioperca; Perca fluviatilis; Pseudorasbora parva; predatory fish"@en . "RIV/60076658:12610/06:00006914!RIV07-MSM-12610___" . "3"^^ . "12610" . "[BD1510591331]" . "Prey selectivity in three important carp-pond predatory fish species - pike (Esox lucius), zander (Sander lucioperca) and perch (Perca fluviatilis) was examined under experimental laboratory conditions. Prey fish (39-53, 24-37 and 37-51% Tl of pike, zander and perch respectively) were submitted to predators originating from a pond culture. No particular selectivity was found in pike (139 # 3 mm Tl) which slightly preferred asp (Aspius aspius) fingerlings over chub (Leuciscus cephalus) and topmouth gudgeon (Pseudorasbora parva). The specific growth rate (SGR) and food conversion ratio (FCR) in pike fed live food were 1.09 # 0.25 % day?1 and 6.93 # 1.07 g g?1, respectively. Only chub and roach (Rutilus rutilus) fingerlings were preferred by zander (244 # 13 mm Tl) while other prey fish like perch, topmouth gudgeon and asp were avoided. The SGR and FCR values in zander fed live fish under experimental conditions were 1.67 # 0.14% day?1 and 3.41 # 0.49 g g?1, respectively. Perch (148 # 2 mm Tl) preferred"@en .