Birthdate frequency by station and date indicated that different cohorts used different areas of the York River. In the fall a reverse migration occurred. Weakfish were first abundant as new recruits at the river mouth, and moved upriver as they grew. Mortality/migration rates estimated from decline in mean catch were significantly different between cohorts 1 and 2 (0.05 level, t-test). Analysis of covariance showed a significant difference (0.05 level) in growth rates among cohorts and among stations, but third order interactions (station, cohort, growth rate) were not detected. Growth rates estimated from scales (0.76-1.13 mm/d) were similar to those from length frequencies (1.0-1.2 mm/d). Three cohorts were defined from the 1983 0-age fish. Counts ranged from 3 to 100 circuli/scale. The new technique of daily aging by scales, was applied to 845 of 922 weakfish collected. Field samples were collected weekly from the York River channel, at night using a 4.9 m, 1.5 mm cod end, trawl, during the weakfish nursery period (Aug-Oct 1983).
The advantages of scale circuli counting over otolith increment counting were increased precision and ease of preparation.
Daily scale deposition was suggested by rearing up to 100 days, after which ring deposition was less than daily, however further research is needed because only one fish was reared past 25 days. Scale circuli showed little variation between counts (99.5% of 2 counts from an individual scale were the same).
#Circuli definition series
Two problems were evident: (1) Microincrements frequently split to form two increments and (2) Otoliths from a size series of fish (6.12-13.1 mm) indicated that weakfish otoliths grew by bud formation rather than concentric deposition. Otolith ring counts were highly variable (31% varied by &>& 15% among 3 counts). Otoliths and scales were examined for daily microincrements patterns. Subsequent larval and juvenile fish were reared up to 275 days with wild plankton and a daily rotating diet of squid, liver, Anchoa mitchilli, and Menidia menidia. to verify daily aging methods of juvenile fish, both male and female adults were induced to spawn by injection of 200 IU Human chorionic gonadotropin/Kg wet weight. There is no complete gathering of the writings of Leibniz.Juvenile weakfish Cynoscion regalis, life history was studied in the York River estuary, Virginia. He wrote in several languages, but primarily in Latin, French, and German. Leibniz's contributions to this vast array of subjects were scattered in various learned journals, in tens of thousands of letters, and in unpublished manuscripts. He wrote works on philosophy, politics, law, ethics, theology, history, and philology. Leibniz made major contributions to physics and technology, and anticipated notions that surfaced much later in philosophy, probability theory, biology, medicine, geology, psychology, linguistics, and computer science. The work of Leibniz anticipated modern logic and analytic philosophy, but his philosophy also looks back to the scholastic tradition, in which conclusions are produced by applying reason of first principles or prior definitions rather than to empirical evidence. Leibniz, along with René Descartes and Baruch Spinoza, was one of the three great 17th century advocates of rationalism. In philosophy, Leibniz is most noted for his optimism, i.e., his conclusion that our Universe is, in a restricted sense, the best possible one that God could have created, an idea that was often lampooned by others such as Voltaire. He also refined the binary number system, which is the foundation of virtually all digital computers. While working on adding automatic multiplication and division to Pascal's calculator, he was the first to describe a pinwheel calculator in 1685 and invented the Leibniz wheel, used in the arithmometer, the first mass-produced mechanical calculator. He became one of the most prolific inventors in the field of mechanical calculators.
in more letail,let me define what the circle is According to Soelfurer. It was only in the 20th century that his Law of Continuity and Transcendental Law of Homogeneity found mathematical implementation (by means of non-standard analysis). Lear and find a synthesis of them in the concept of the quadratura circuli. Most scholars believe Leibniz developed calculus independently of Isaac Newton, and Leibniz's notation has been widely used ever since it was published. He occupies a prominent place in the history of mathematics and the history of philosophy. Gottfried Wilhelm von Leibniz was a German polymath and philosopher.
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