Acid stress in respect to calcium and magnesium concentrations in the plasma of perch during maturation and spawning

Valtonen, Tapani; Laitinen, Markku

doi:10.1007/bf00001544

Cited by 12 publications

(8 citation statements)

References 20 publications

(25 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A crude indication of gonadal maturation in fish is given by the gonadosomatic index (GSI), which in essence represents the ratio of gonad to body weight. GSI measurements of female perch (Perca fluviatilis, Percidae) taken over a full season were significantly lower in fish from an acid lake (pH 5.1-5.2) than in those from a circumneutral lake (pH 6.6) (Valtonen and Laitinen, 1988). This effect cannot be attributed to low pH alone, however, as there was considerable difference between the waterborne calcium concentrations (53 and 106 ~tmol1-1 respectively).…”

Section: Gametogenesis and Spawningmentioning

confidence: 59%

“…some of the family Salmonidae) will generally have survival thresholds of between pH 4.2 and 4.5 (review: Brown and Sadler, 1989). A realistic pH range in which to study the effects of Wright and Henriksen (1978), Dickson (1980), Rask (1983), Valtonen andLaitinen (1988), Seip et al (1990), Vourinen et aL (1992 acidification on fish would therefore appear to be pH 4.2-5.6. Because the pH scale is logarithmic, the above limits represent a considerable range in hydrogen ion concentration (63.1-2.5 ktmol l-t).…”

Section: Phmentioning

confidence: 99%

“…A literature survey of some trace metal concentrations measured in soft, acid waters is summarized in Table 2, and again typical values are proposed. Over the pH (1978), Dickson (1980), Haines (1981), Borg (1983Borg ( , 1986, Fjerdingstad and Ntis,sen (1983), Rask (1983), Marmio and Verta (1987), Iverfeldt and Johansson (1988), Valtonen and Laitinen (1988) (1987,1988), Conlon et aL (1992). *The proposed typical values are essentially medians of the available data, although some discretion has been used to eliminate the influence of unfiltered samples.…”

Section: Trace Metalsmentioning

confidence: 99%

See 2 more Smart Citations

Freshwater acidification: effects on the early life stages of fish

Sayer¹,

Reader

Dalziel

1993

Rev Fish Biol Fisheries

View full text Add to dashboard Cite

Section: Gametogenesis and Spawningmentioning

confidence: 59%

Section: Phmentioning

confidence: 99%

Section: Trace Metalsmentioning

confidence: 99%

See 1 more Smart Citation

Freshwater acidification: effects on the early life stages of fish

Sayer¹,

Reader

Dalziel

1993

Rev Fish Biol Fisheries

View full text Add to dashboard Cite

“…However, the results from studies of perch fecundity is contradictory (Lappalainen et al. 1988; Valtonen & Laitinen 1988; Linløkken et al. 1991).…”

Section: Introductionmentioning

confidence: 99%

Life‐history variation in perch (Perca fluviatilis L.) in five neighbouring Norwegian lakes

Heibo

Vøllestad

2002

Ecology of Freshwater Fish

View full text Add to dashboard Cite

– We have studied the population dynamics and reproductive biology of perch (Perca fluviatilis L.) from five neighbouring lakes in Norway. The lakes vary in water quality, varying from strongly acidified (pH≤5.0) to not acidified (pH≥6.0). Estimated annual survival rates did not differ among populations. There was no strong relationship between age at maturity in female perch and acidification. However, age at maturity was lower for female perch from the most acidic lake (c. 2 years) compared with perch in the four other lakes (2.5–3.5 years). There was no relationship between acidification level and size‐adjusted egg size, fecundity or reproductive investment (Gonadosomatic index – GSI). Perch in the most acidified lake showed large variation in egg size, the lowest length‐specific fecundity, the highest GSI, and the lowest age at maturity. Environmental stress, such as acidification, induces a number of changes to a lake community. It is therefore difficult to predict how acidification will influence the population dynamics and reproductive biology of a perch population.

show abstract

“…Fluctuations in recruitment due to varying water chemistry can appear as fluctuating year-class strength in perch populations (Linlokken et al 1991). This recruitment variability, or failure, may also be due to lowered reproductive quality of mature fish, or perturbations in spawning physiology (Vinogradov and Komov 1985;Valtonen and Laitinen 1988) in perch populations in acidic waters. Delayed maturation of gonads and postponed spawning have been recorded in acidic waters (Rask et al 1990); this may further result in suboptimal developmental conditions for perch, owing to increased water temperatures, etc.…”

Section: Discussionmentioning

confidence: 98%

Developmental stability in perch (Perca fluviatilis) in acidic aluminium-rich lakes

Østbye¹,

Øxnevad²,

Vøllestad³

1997

Can. J. Zool.

View full text Add to dashboard Cite

Fluctuating asymmetry is defined as random deviation from perfect bilateral symmetry resulting from environmental or genetic disturbances (termed developmental noise) during early embryonic development. Developmental instability is defined as the inability of an organism to follow the a priori defined growth trajectory that results in perfect bilateral symmetry, owing to insufficient buffering of the disruptive effects of developmental noise during development. Fluctuating asymmetry has been proposed for use as a measure of developmental instability. In this study we tested whether fluctuating asymmetry can be an early indication of acidification stress. Samples were taken from 10 perch (Perca fluviatilis) populations exposed to varying pH levels and aluminium concentrations. We scored 13 bilateral meristic and morphometric characters to assess fluctuating asymmetry. The level of fluctuating asymmetry in the mandibular pores and one index summarizing three of the meristic characters were significantly correlated with the acidification level. when the lakes were split into two groups, "acidified" and "control," each consisting of five lakes, the same pattern emerged. The variance of fluctuating asymmetry estimates was larger in the acidified lakes than in the control lakes. These findings imply that perch in acidic environments experience developmental perturbations during early embryogenesis, resulting in deviating bilateral morphology. The variation in fluctuating asymmetry among lakes was at the same level as previously found among age groups within one acidified lake. Based on these findings, the use of fluctuating asymmetry as a management tool to evaluate the viability of fish populations in acidified waters is of limited value unless a more comprehensive approach is used.RCsumC : L'asymCtrie fluctuante se dCfinit comme I'Ccart alCatoire de la symCtrie bilatCrale parfaite et elle rCsulte de perturbations environnementales ou gCnCtiques (appelCes bruits) au dCbut du dCveloppement embryonnaire. L'instabilitC du dCveloppement se dCfinit comme I'incapacitC pour un organisme de suivre la trajectoire de croissance Ctablie a priori, celle qui rCsulte en une symktrie bilatCrale parfaite, a cause de I'insuffisance des processus tampons qui peuvent neutraliser les effets perturbants des bruits au cours du dCveloppement. L'asymCtrie fluctuante a Ct C proposCe comme mesure de I'instabilitC du dkveloppement. Dans cette Ctude, nous avons cherchC a dCterminer si I'asymCtrie fluctuante pouvait servir d'indicateur de stress au dCbut d'une acidification. Des Cchantillons ont Ct C prClevCs chez 10 populations de Perchaudes (Perca flavescens) exposCes a des pH divers et a diverses concentrations d'aluminium. Nous avons mesurC 13 caractkres mCristiques et morphomCtriques bilatCraux et en avons CvaluC I'asymCtrie fluctuante. L'importance de I'asymCtrie fluctuante des pores mandibulaires et d'un indice resumant trois caractkres mkristiques Ctait en corrClation significative avec le degrC d'acidification. Lorsque les lacs ont Ct C ...

show abstract

Acid stress in respect to calcium and magnesium concentrations in the plasma of perch during maturation and spawning

Cited by 12 publications

References 20 publications

Freshwater acidification: effects on the early life stages of fish

Freshwater acidification: effects on the early life stages of fish

Life‐history variation in perch (Perca fluviatilis L.) in five neighbouring Norwegian lakes

Developmental stability in perch (Perca fluviatilis) in acidic aluminium-rich lakes

Contact Info

Product

Resources

About