Size and Osmoregulation in Salmonid Fishes

Parry, Gwyneth

doi:10.1038/1811218a0

Cited by 71 publications

(32 citation statements)

References 2 publications

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“…Size related increases in (Na J, (Cl J and water transport capabilities during seawater acclimation have been found in Atlantic salmon (Parry, 1958;Houston, 1961), rainbow trout (Conte et al, 1966;Wagner, 1974;Jackson, 1981) Such a phenomenon has been reported by Jackson (1981) for rai nbow trout.…”

Section: + -mentioning

confidence: 57%

“…The ability to maintain low plasma ion concentrations during the first few days after seawater exposure has been used to measure hypoosmoregulatory ability and to predict seawater survival (Parry, 1958;Conte and Wagner, 1965;Conte et al, 1966;Cl arke et al, 1978;Jackson, 1981).…”

Section: Recent Experi Ments Conducted At Woods Hole Oceanographi Cmentioning

confidence: 99%

“…The fact that "1 arger" sal moni ds can adapt to sea water more readily than "smaller" salmonids has been known for some time (Parry, 1958) . Si ze and age are both incorporated in the term" 1 arge", yet these parameters have rarely been separated when i nvesti gati ng osmoregul atory abi 1 i ty.…”

Section: Recent Experi Ments Conducted At Woods Hole Oceanographi Cmentioning

confidence: 99%

“…Al though several researchers have concl uded that si ze is the primary factor determining seawater suvival in salmonids (Huntsman and Hoar, 1939;Parry, 1958;Houston, 1961;Wagner et al, 1969;Wagner, 1974) and striped mullet, Mugil cephalus (Nordlie et al, 1982), few have attempted to, separate the effects of si ze and age. Conte and Wagner (1965) and Conte et ale (1966) determined that size, rather than age determi ned seawater survi val in rai nbow trout and coho salmon, although they did not manipulate growth rates to control for age.…”

Section: Seawater Survi Valmentioning

confidence: 99%

“…Increased size has been shown to be a determinant of hypoosmoregulatory ability in a variety of salmonids, acti ng di rectly to i nfl uence sal i ni ty tol erance (Huntsman and Hoar, 1939;El son, 1957;Parry, 1958;Houston, 1961;Wagner et al, 1969;Wagner, 1974) as well as the process of smoltification . Although size has been implicated as the primary effector of ontogenetic changes in osmoregulatory ability, few studies have attempted to separate the nonnally covarying properties of size and age.…”

Section: Introductionmentioning

confidence: 99%

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Effects of size, age and photoperiod on hypoosmoregulation in brook trout, Salvelinus fontinalis

McCormick¹

1983

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Section: + -mentioning

confidence: 57%

Section: Recent Experi Ments Conducted At Woods Hole Oceanographi Cmentioning

confidence: 99%

Section: Recent Experi Ments Conducted At Woods Hole Oceanographi Cmentioning

confidence: 99%

Section: Seawater Survi Valmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effects of size, age and photoperiod on hypoosmoregulation in brook trout, Salvelinus fontinalis

McCormick¹

1983

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Effects of brackish water on growth, feed conversion and energy absorption efficiency by juvenile euryhaline and freshwater stenohaline fishes

Altınok

2001

Journal of Fish Biology

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Among six species of juvenile fishes (<6 months old), stenohaline species (channel catfish Ictalurus punctatus and goldfish Carassius auratus) had their highest specific growth rate (G) and most efficient food conversion ratio (E C ) and energy absorption efficiency (I E ) in fresh water. Three of the euryhaline species (rainbow trout Oncorhynchus mykiss, striped bass Morone saxatilis and Gulf sturgeon Acipenser oxyrinchus desotoi) had higher G and had more efficient E C and I E in 3 and 9‰ salinities than in lower salinities (fresh water and 1‰). For brown trout Salmo trutta (age 3-4 months), 9‰ was above the optimum level for G and E C . However, I E for brown trout was not significantly different at 3 and 9‰ salinities. Over the salinity range tested, channel catfish had the largest change in G, E C and I E , while changes for euryhaline species were relatively small. Although all species tested survived and grew in all treatments, salinities as low as 1‰ adversely affected the stenohaline species, and 9‰ adversely affected brown trout. 2001 The Fisheries Society of the British Isles

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Seasonal changes in hypoosmoregulatory ability in landlocked and anadromous populations of Arctic charr, Salvelinus alpinus, and Atlantic salmon, Salmo salar

Schmitz

1995

Environ Biol Fish

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SynopsisSeasonal changes in hypoosmoregulatory ability were compared in landlocked and anadromous strains of Arctic charr and Atlantic salmon . Seawater adaptability was assessed using periodic 48 h seawater challenge tests with 25%o seawater . The landlocked strains of Arctic charr, two from northern Sweden and one from Southern Norway, displayed similar seasonal changes in seawater adaptability as the anadromous strain . Seawater tolerance increased during spring and remained high until the end of July -early August after which it declined . The two strains of Atlantic salmon displayed different seasonal patterns in hypoosmoregulatory ability. The anadromous strain showed a pronounced seasonal pattern with maximal seawater adaptability in early June. In contrast, seawater tolerance in the landlocked strain improved steadily during spring and remained high until late autumn . During the period of enhanced seawater tolerance, hypoosmoregulatory ability increased significantly with body size in both Arctic charr and anadromous Atlantic salmon . The minimum size at which fish were able to regulate plasma sodium following seawater transfer at a level comparable to freshwater levels (< 170 mmol l -t ) differed significantly between anadromous Atlantic salmon (ca . 14 cm) and Arctic charr (ca . 22 cm) . The results show that seasonal changes in hypoosmoregulatory ability are present in both Atlantic salmon and Arctic charr, and that these physiological traits are retained in the corresponding landlocked strains . However, the seasonal pattern of seawater adaptability as well as the minimum size at which seawater tolerance occurs differs between the two species .

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Size and Osmoregulation in Salmonid Fishes

Cited by 71 publications

References 2 publications

Effects of size, age and photoperiod on hypoosmoregulation in brook trout, Salvelinus fontinalis

Effects of size, age and photoperiod on hypoosmoregulation in brook trout, Salvelinus fontinalis

Effects of brackish water on growth, feed conversion and energy absorption efficiency by juvenile euryhaline and freshwater stenohaline fishes

Seasonal changes in hypoosmoregulatory ability in landlocked and anadromous populations of Arctic charr, Salvelinus alpinus, and Atlantic salmon, Salmo salar

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