Sperm motility and fertilization time span in Atlantic salmon and brown trout—the effect of water temperature

Abstract

The effect of water temperature on the duration of sperm motility, the time lapse after activation by fresh water and the fertility of eggs was studied in Atlantic salmon and brown trout. Eggs of both species were fully fertile in fresh water after 512 s. No interspecific differences were noted in egg fertility at the lower water temperatures, but the brown trout eggs showed a higher resistance to high temperatures, indicating a better physiological thermotolerance. A highly significant effect of temperature on the overall duration of sperm motility was found, with a marked peak at 3-4 C for salmon and a weaker one for trout. After freshwater activation the eggs of both species remained fertile for a longer time than the sperm were mobile.1997 The Fisheries Society of the British Isles

Characterization of sperm motility in sea bass: the effect of heavy metals and physicochemical variables on sperm motility

“…obs.). Several authors have reported an inverse relationship between sperm motility duration and temperature in salmonids (Billard & Cosson, 1992; Vladić & Järvi, 1997; Kime et al , 2001). By contrast, wolffish Anarhichas lupus L. sperm activated at 18° C was motile for <1 min, but could be reactivated by cooling and then it remained motile for several days when activated at 4° C (Kime et al , 2001).…”

“…The use of sperm motility variables as indicators of toxicity and, consequently, the use of fish sperm as biomonitors have been addressed in previous studies (Kime et al , 1996, 2001; Kime & Nash, 1999). Fish sperm motility has been reported to be clearly influenced by external variables such as temperature (Vladić & Järvi, 1997; Alavi & Cosson, 2005), pH (Ingermann et al , 2002; Alavi & Cosson, 2005), osmolality (Morisawa & Suzuki, 1980; Litvak & Trippel, 1998; Ohta & Shinriki, 1998; Haddy & Pankhurst, 2000; Cosson, 2004; Alavi & Cosson, 2006), and various xenobiotic substances (Khan & Weis, 1987 a , b , c ; Kime et al , 1996; Rurangwa et al , 1998, 2002; Ciereszko & Dabrowski, 2000; Van Look, 2001; Wagner et al , 2002; Van Look & Kime, 2003).…”

Sperm traits in relation to male quality in colonial spawning bluegill

“…Mean swimming speed was highly correlated with median swimming speed among males ( r = 0·987, P < 0·0001, n = 22) and analyses of mean rather than median speeds showed the same patterns. Sperm swimming speeds at 10 s post‐activation are used here because recent work has shown that the majority of fertilization probably occurs within a few seconds after ejaculation in externally fertilizing fishes (Vladic & Järvi, 1997; Hoysak & Liley, 2001). …”

Different expression patterns of sperm motility-related genes in testis of diploid and tetraploid cyprinid fish†

“…Sperm motility has been considered the main indicator of sperm quality, and it is significantly correlated with the fertilization rate [1]. As lower vertebrates, most fishes are oviparous and can undergo in vitro fertilization.…”