A study of longevity, growth, reproduction and heart rate in Daphnia longispina as influenced by limitations in quantity of food

Ingle, Lester; Wood, Thelma Rittenhouse; Banta, Arthur Mangun

doi:10.1002/jez.1400760206

Cited by 167 publications

(101 citation statements)

References 10 publications

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“…Food supply can influence crustacean growth, affecting both the maximum size attained and the growth rate (Ingle et al 1937, Mason 1963, Hartnoll 1982, Gu et al 1996. In the present study, sites that were located closest to the mouth of the estuary (SWI and PR) exhibited the highest growth rates.…”

Section: Discussionmentioning

confidence: 50%

Use of extractable lipofuscin to estimate age structure of ghost shrimp populations in west coast estuaries of the USA

Bosley¹,

Dumbauld²

2011

Mar. Ecol. Prog. Ser.

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Determining age in crustaceans is inherently imprecise because they molt periodically and do not retain hard structures throughout their lifespan. Morphological measurements are often used to estimate age, but variability in individual growth rate and molt frequency can result in a wide distribution of sizes in a single age class, making size a poor predictor of true age. Concentration of the autofluorescent age pigment, lipofuscin, has been shown to be directly related to actual age in many crustaceans. The present study assessed the potential of using extractable lipofuscin as a method for determining age in the ghost shrimp Neotrypaea californiensis. Following validation of the technique, lipofuscin-based aging was used to determine age structures for 3 populations of N. californiensis, and these were compared to age structures determined using traditional lengthbased methods. Analysis of lipofuscin revealed up to 13 age classes where the size-based analysis showed only 7. Comparison of mean size-at-age among populations in Oregon and Washington estuaries demonstrated that growth rate varied spatially, probably responding to site-specific environmental factors like food availability and population density. N. californiensis negatively impact oyster aquaculture in Pacific Northwest estuaries. Analysis of extractable lipofuscin proved to be a more accurate method of age determination than body-length measurements and should facilitate more indepth investigations of basic biological and ecological processes, which will benefit current efforts to develop an integrated pest management plan for N. californiensis.

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Section: Discussionmentioning

confidence: 50%

Use of extractable lipofuscin to estimate age structure of ghost shrimp populations in west coast estuaries of the USA

Bosley¹,

Dumbauld²

2011

Mar. Ecol. Prog. Ser.

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“…With clonal organisms, these correlations are not possible obviously, but Bell (1984) also observed these positive correlations in daphniids and rotifers. Moreover, the observation that daphniids kept under limiting conditions have a higher life expectancy has been made several times (Ingle et al 1937;Martínez-Jerónimo et al 1994;Rose et al 2000), but none of those authors linked this causally to lower reproductive rates. Lynch and Ennis (1983) did make this link, but they found no negative correlation between longevity and reproduction, stating that their results were inconsistent with the ''cost of reproduction hypothesis'' (Williams 1966) or with the ''rate of living'' hypothesis.…”

Section: Discussionmentioning

confidence: 99%

Resource quality effects on life histories of Daphnia

Becker

Boersma

2003

Limnology & Oceanography

113

110

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We investigated the changes in life histories imposed on the water flea, Daphnia magna, due to biochemical and mineral limitations. Phosphorus-deficient Scenedesmus obliquus were incubated with or without a single essential fatty acid, eicosapentaenoic acid (EPA). Additionally, the algae were spiked with dissolved phosphorus to create a range of C : P ratios from 600 to 200. This procedure created the possibility to study the importance of different essential resources. We found that somatic growth is retarded until a C : P ratio (molar) ϳ350 is reached. Adding more phosphorus did not further increase growth. At the same time, at high C : P ratios the addition of EPA did not make a difference in growth, whereas below the nutrient threshold (C : P ϭ 350), the fatty acid had a strong positive impact on growth. In a second experiment we studied how the food conditions (with regard to EPA) affected the growth and investment in reproduction and whether this effect was passed on to the next generation. We found that animals fed EPA made an earlier and larger investment in reproduction. Also, the EPA-enriched animals had a higher mortality. The juveniles from mothers fed EPA-enriched algae had a higher growth rate than neonates from control mothers.In recent years, numerous studies on the effect of food quality differences on herbivorous zooplankton have appeared (e.g

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“…The life spans we saw in the laboratory suggest that substantial numbers of D. pulicaria may live long enough to cross the seasonal troughs of habitat quality because the average temperature and resource level they experience in the field is lower than laboratory conditions. Daphnid life spans have been shown to lengthen in colder temperatures (MacArthur and Baillie 1929;Ingle 1933) and under reduced resources (Ingle et al 1937). When resources increase in spring and fall, a population of D. pulicaria will be composed mainly of large adults that persisted from the last good season.…”

Section: Discussionmentioning

confidence: 99%

NATURAL GENETIC VARIATION OF LIFE SPAN, REPRODUCTION, AND JUVENILE GROWTH IN DAPHNIA

Dudycha

Tessier

1999

Evolution

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Abstract.-The evolutionary theory of senescence predicts that high extrinsic mortality in natural populations should select for accelerated reproductive investment and shortened life span. Here, we test the theory with natural populations of the Daphnia pulex-pulicaria species complex, a group of freshwater zooplankton that spans an environmental gradient of habitat permanence. We document substantial genetic variation in demographic life-history traits among parent and hybrid populations of this complex. Populations from temporary ponds have shorter life spans, earlier and faster increases of intrinsic mortality risk, and earlier and steeper declines in fecundity than populations from permanent lakes. We also examine the age-specific contribution to fitness, measured by reproductive value, and to expected lifetime reproduction; these traits decline faster in populations from temporary ponds. Despite having more rapid senescence, pond Daphnia exhibit faster juvenile growth and higher early fitness, measured as population growth rate (r). Among populations within this species complex we observed negative genetic correlations between r and indices of life-history timing, suggesting trade-offs between early-and late-life performance. Our results cannot be explained by a trade-off between survival and fecundity or by nonevolutionary theories of senescence. Instead, our data are consistent with the evolutionary theory of senescence because the genetic variation in life histories we observed is roughly congruent with the temporal scale of environmental change in the field.

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A study of longevity, growth, reproduction and heart rate in Daphnia longispina as influenced by limitations in quantity of food

Cited by 167 publications

References 10 publications

Use of extractable lipofuscin to estimate age structure of ghost shrimp populations in west coast estuaries of the USA

Use of extractable lipofuscin to estimate age structure of ghost shrimp populations in west coast estuaries of the USA

Resource quality effects on life histories of Daphnia

NATURAL GENETIC VARIATION OF LIFE SPAN, REPRODUCTION, AND JUVENILE GROWTH IN DAPHNIA

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A study of longevity, growth, reproduction and heart rate in Daphnia longispina as influenced by limitations in quantity of food

Cited by 167 publications

References 10 publications

Use of extractable lipofuscin to estimate age ­structure of ghost shrimp populations in west coast estuaries of the USA

Use of extractable lipofuscin to estimate age ­structure of ghost shrimp populations in west coast estuaries of the USA

Resource quality effects on life histories of Daphnia

NATURAL GENETIC VARIATION OF LIFE SPAN, REPRODUCTION, AND JUVENILE GROWTH IN DAPHNIA

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Use of extractable lipofuscin to estimate age structure of ghost shrimp populations in west coast estuaries of the USA

Use of extractable lipofuscin to estimate age structure of ghost shrimp populations in west coast estuaries of the USA