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- W2399807870 abstract "The White Sands pupfish (Cyprinodon tularosa) was introduced into a 0.1-ha, shal- low, saline, eutrophic desert pond in the Tularosa Basin, New Mexico, in 1973. Life history inves- tigations and a population estimate were made in 1975 and 1976. Maximum longevity of the pup- fish was 5 years, at which age they were 56.2 mm total length and weighed 3.4 g. The length-weight relationship was log W = -5.25601 + 3.30845 log L. Weight of fish when each annulus formed was computed. Mean fecundity ranged from 810 ova per female in Age Group I to 2,996 in Age Group IV, with a grand mean of 1,140. A Schnabel estimate of 12,520 trappable-size fish was expanded to form a survival curve des- cribed by log S = 3.74658 - 5.99959 log A, which showed that the population varied from 1,950,583 to 30,527 during the year. Mean standing crop biomass was 13.344 kg. The population and length-weight curves were integrated to compute estimates of live-weight biomass production of White Sands pupfish in each age group during 0.1-yr intervals. Total annual somatic production was 25.309 kg. Ratio of production to standing crop biomass was 1.90 or 190%. Production of 2.448 kg of eggs was estimated separately. Production rates of 25.3 g/m2/yr of somatic tissue, 2.5 g/m2/yr of eggs, and 27.8 g/m2/yr of total production are relatively high among fish at trophic level A3. Fish in Age Group 0 accounted for 91.6% of the live-weight bio- mass produced and Age Group I accounted for 8%. A high rate of total production, extremely high rates of production by the youngest age groups, and a large ratio of production to standing crop biomass indicate that the population was below carrying capacity and was expanding." @default.
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- W2399807870 date "1982-01-01" @default.
- W2399807870 modified "2023-09-26" @default.
- W2399807870 title "WHITE SANDS PUPFISH, CYPRINODON TULAROSA (CYPRINODONTIDAE), IN A DESERT POND" @default.
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- W2399807870 hasPublicationYear "1982" @default.
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