- Panzerwels [9]
- Papst [17]
- Pelecus cultratus [34]
- Perca fluviatilis [22]
- Petromyzon fluviatilis [100]
- Petromyzon marinus [99]
- Petromyzon planeri [99]
- Pfaffenlaus [28]
- Pfäffikonmaräne [91]
- Pfrillen [58]
- Phototaxis [64]
- Phoxinus laevis [57]
- Plötze [59]
- Pricke [100]
- Rapfen [60]
- Regenbogenforelle [90]
- Rhodeus amarus [39]
- Roche [6]
- Rotauge [59]
- Rotzkober [17]
- Rümpchen [58]
- Saibling [89]
- Salm [76]
- Salmo fontinalis [90]
- Salmo hucho [88]
- Salmo irideus [90]
- Salmo lacustris [89]
- Salmo salar [75], [76]
- Salmo salvelinus [89]
- Salmo trutta [89]
- Schill [26]
- Schlafstellung [8]
- Schlammbeißer [10], [12], [14]
- Schlammgeschmack [14]
- Schlammpeitzker [8], [9], [10], [12]
- Schleie [56]
- Schmerle [13]
- Schnäpel [92]
- Schneider [62]
- Schneiderkarpfen [39]
- Schnelligkeit [52]
- Schrätzer [27]
- Schutzfärbung [19]
- Schwarzbarsch [28]
- Schwarzreiter [89]
- Schwebeforelle [89]
- Schwimmbewegung [52]
- Schwimmblase [53]
- Seeforelle [89]
- Seitenlinie [31], [32]
- Semling [21]
- Sichelfortsatz [36]
- Sichling [34]
- Silberforelle [90]
- Silurus glanis [96]
- Sommerschlaf [7]
- Spiegelkarpfen [48]
- Statolith [29]
- Stechbüttel [43]
- Steinbeißer [9], *[12]
- Steingreßling [57]
- Stichling [42], [66]
- Stint [90]
- Stör [98]
- Streber [27]
- Symbiose [41]
- Taumelkrankheit [84]
- Tastsinn [32]
- Thymallus vulgaris [90]
- Tinca tinca [56]
- Töne [15]
- Traunseemaräne [91]
- Trüsche [97]
- Trutta fario [81]
- Uckelei [61]