Production of the three‐spined stickleback, Gasterosteus aculeatus L., in the River Weaver, England

O’Hara, K.; Penczak, T.

doi:10.1111/j.1365-2427.1987.tb01319.x

Cited by 6 publications

(8 citation statements)

References 19 publications

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“…These observations are consistent with previous reports of the age structure (Mann, 1971;Allen and Wootton, 1982;O'Hara and Penczak, 1987;Wootton and Smith, 2000;Poizat et al, 2002;Wootton, 2007) and sex ratio (Kynard, 1978;Wootton, 1984;Mori, 1993;Arnold et al, 2003) of three-spined stickleback populations. Disproportionate mortality among males due to the energetic demands and risks associated with male parental investment has been suggested to account for the female bias (Chellappa et al, 1989;Arnold et al, 2003).…”

Section: Population Structuresupporting

confidence: 83%

“…The length frequency distributions for fish in the R. Ock suggested that 1+ adults were present throughout the summer months as is the case in some other UK stickleback populations (Allen and Wootton, 1982;O'Hara and Penczak, 1987). …”

Section: Body Mass Fork Length and Specific Growth Ratementioning

confidence: 97%

“…This resulted in fish with mean lengths in May in excess of those reported for one-year old sticklebacks in other UK populations (Mann, 1971;Allen and Wootton, 1982;O'Hara and Penczak, 1987) and with clear separation between the current (0+, 2008) and previous (1+, 2007) year classes. In July very few fish that could be apportioned to the preceding year class were caught in the R. Ray.…”

Section: Body Mass Fork Length and Specific Growth Ratementioning

confidence: 97%

“…If the WWTW was the major source of EROD-inducing chemicals in the R. Ray, and WWTW effluent is certainly documented as an inducer of CYP1A activity in fish (e.g. McArdle et al, 2000), a sustained response might also have arisen if the exposure route of the fish was not primarily via the water column but instead via ingestion of contaminated food items and thus more closely linked to the chemicals associated with the sediments and detritus (O'Hara and Penczak, 1987;Gewurtz et al, 2000;Rice et al, 2000;Meriläinen and Oikari, 2008). During the period in which fish populations were monitored, sediment PAH concentrations were highest at Elborough Bridge (EB; the first site downstream of the WWTW) lower at Seven Bridges (7B; the site most distant from the WWTW on the Ray) and were lower than both these at Charney Bassett ( al., unpublished data;Grover et al, unpublished data;Balaam et al, 2010).…”

Section: Erod Activitymentioning

confidence: 99%

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Effects of sewage effluent remediation on body size, somatic RNA: DNA ratio, and markers of chemical exposure in three-spined sticklebacks

Pottinger

Cook

Jürgens

et al. 2011

Environment International

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Body mass, fork length, RNA:DNA ratio, specific growth rate, and hepatic EROD activity and CYP1A expression, were measured in three-spined sticklebacks in the River Ray (south west England) at sites downstream of an urban waste water treatment works (WWTW) prior to, and following, remediation of the effluent with granular activated carbon (GAC) tertiary treatment.During the same two-year period fish were also sampled from a neighbouring reference river (R.Ock). The WWTW effluent elevated water temperatures and nutrient content in the R. Ray and rendered a direct comparison of fish populations in the two rivers untenable. Instead, the stability of population parameters within each river during matched pre-and post-remediation periods was compared. Stickleback populations in both rivers were annual but fish in the R. Ray spawned earlier and were larger than those in the R. Ock. In the R. Ray fish gained mass throughout the winter months whereas in the R. Ock growth was much reduced during this period. In fish from the R. Ray the somatic RNA:DNA ratio remained elevated during May-November after remediation, rather than declining as in the same period pre-remediation and as was the case for fish in the R. Ock during both periods. The specific growth rate of the first post-remediation generation of sticklebacks in the R. Ray was higher than that of the previous pre-remediation generation.Following remediation there was no decline in hepatic EROD activity or in the abundance of hepatic CYP1A transcripts in fish in the R. Ray suggesting that the primary route of exposure to contaminants for these fish was not via the water column, and that the change in performance of the fish post-remediation was not impeded by continued exposure to contaminants. Both EROD activity and CYP1A expression increased in fish in the R. Ock during the later stages of the study suggesting that the fish in this river were exposed to an unidentified contaminant episode. This may have been linked with the poorer performance of fish in the R. Ock during the post-remediation period. The improved performance of fish in the R. Ray suggest that there may be factors in good quality secondary treated sewage effluent which can adversely influence the performance of fish populations, directly or indirectly, and which can be removed by tertiary treatment.3

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Section: Population Structuresupporting

confidence: 83%

Section: Body Mass Fork Length and Specific Growth Ratementioning

confidence: 97%

Section: Body Mass Fork Length and Specific Growth Ratementioning

confidence: 97%

Section: Erod Activitymentioning

confidence: 99%

See 2 more Smart Citations

Effects of sewage effluent remediation on body size, somatic RNA: DNA ratio, and markers of chemical exposure in three-spined sticklebacks

Pottinger

Cook

Jürgens

et al. 2011

Environment International

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“…A produção de peixes tem sido objeto de diversos estudos em lagos (RYDER, 1965;DIANA, 1983;KELSO, 1988;RANDAL et al, 1995) e riachos (HOPKINS, 1971;PENCZAK, 1981;NEVES & PARDUE, 1983;WATERS, 1983;WHITWORTH & STRANGE, 1983;PENCZAK et al, 1985;MANN & PENCZAK, 1986;O'HARA & PENCZAK, 1987;NEWMAN & WATERS, 1989;PENCZAK, 1992) de regiões temperadas, porém são poucos os estudos realizados em outras regiões (BISHOP, 1973;KAPETSKY, 1974;WATSON & BALON, 1984;PENCZAK & LASSO, 1991). Para peixes tropicais brasileiros, apenas dois trabalhos estão disponíveis na literatura (i.e.…”

Section: Palavras-chaveunclassified

Produtividade de peixes em um riacho costeiro da bacia do Leste, Rio de Janeiro, Brasil

Schubart

Mazzoni

2006

Iheringia, Sér. Zool.

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ABSTRACT. Fish production in a coastal stream from Bacia do Leste, Rio de Janeiro, Brazil. Production rates (P) and biomass (B) of two stream-dwelling fish species from seven sites in the Ubatiba drainage were studied during two years with contrasting rainfall indexes. In order to test the potential correlation between P, B and the Environmental Heterogeneity Index (EHI) of each site, simple correlation analyses were applied. The analyses did not show significant differences (p<0.01). Spatial pattern of P indicated that production rates of both species are highly homogeneous in the studied sites but are low when compared with other stream-dwelling fishes from the Holartic region. Mean P , B dry = 12.2 kg.ha -1 , with significant higher values during the dry year (t (B)= 2.41; p = 0.03 e t (P)= 2.28; p = 0.04). In spite of presenting a tendency similar to that found for A. hastatus, mean P and B values for Geophagus brasiliensis (Quoy & Gaimardi, 1824) did not show significant differences (t (B) = 1.5; p = 0.16 and t (P) = 1.75; p = 0.11) between years: P rainy = 25.2 kg. , com valores significativamente superiores durante o ano seco (t (B)= 2,41; p = 0,03 e t (P)= 2,28; p = 0,04). Apesar de ter apresentado tendência semelhante à registrada para A. hastatus, os valores de P e B de Geophagus brasiliensis (Quoy & Gaimardi, 1824) não se mostraram significativamente diferentes (t (B) = 1,5; p = 0,16 e t (P) = 1,75; p = 0,11) entre os anos de estudo, sendo P chuvoso = 25,2 kg.ha -1 .ano -1, P seco = 53,2 kg.ha -1 .ano -1 e B chuvoso = 16,6 kg.ha -1 , B seco = 29,7 kg.ha -1 . As reduções de P durante o ano de maior pluviosidade foram de 57% e 47% para A. hastatus e G. brasiliensis, respectivamente. Os valores médios da relação P/B mostraram tendência a redução em relação ao aumento de tamanho dos indivíduos de ambas as espécies.

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Population dynamics of two small cichlid fish species in a tropical man-made lake (Lake Kariba)

Hustler

Marshall

1990

Hydrobiologia

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The population dynamics of two small cichlid fishes (Pharyngochromis darlingi and Pseudocrenilabrus philander) were studied in Lake Kariba, a very large African man-made lake. They are of no economic importance but make up about 14 % and 7 % respectively of the inshore fish population and are the major components of the diet of fish-eating birds on the lake. P. darlingi is the larger species (Lo = 156.5 mm) and is found on both shelving and steep, eroding shores. Its mortality rate differs in each habitat (Z = 0.44 and 0.72 month-' respectively), only 0.79% survive for 12 months and its P/B ratio is 5.45 (on shelving shores). Ps. philander is smaller (L = 83.9 mm) and is restricted to shelving areas with abundant vegetation. Its monthly mortality rate was high (Z = 7.69), only 0.05% survive to 12 months whilst its P/B ratio was very high (7.69). The estimates of growth obtained for P. darlingi differ considerably from those given in an earlier study in Lake Kariba and some possible reasons for this are discussed. In suitable habitats, the combined production of both species could be 40 kg ha-' yr-1 which indicates their potential importance to the ecology of the lake.

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Production of the three‐spined stickleback, Gasterosteus aculeatus L., in the River Weaver, England

Cited by 6 publications

References 19 publications

Effects of sewage effluent remediation on body size, somatic RNA: DNA ratio, and markers of chemical exposure in three-spined sticklebacks

Effects of sewage effluent remediation on body size, somatic RNA: DNA ratio, and markers of chemical exposure in three-spined sticklebacks

Produtividade de peixes em um riacho costeiro da bacia do Leste, Rio de Janeiro, Brasil

Population dynamics of two small cichlid fish species in a tropical man-made lake (Lake Kariba)

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