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Age and growth of bluespine unicornfish (Naso unicornis): a half-century life-span for a keystone browser, with a novel approach to bomb radiocarbon dating in the Hawaiian Islands

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TLDR
Bluespine unicornfish (Naso unicornis) from Hawaii were aged to >50 years using cross-sectioned sagittal otoliths and it was possible to describe length-at-age despite difficulties in counting otolith annuli beyond 30–40 years.
Abstract
Bluespine unicornfish (Naso unicornis) from Hawaii were aged to >50 years using cross-sectioned sagittal otoliths. Fish length was a poor indicator of age because of rapid and variable early growth...

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Journal ArticleDOI

Natural bounds on herbivorous coral reef fishes.

TL;DR: The substantial variability in herbivore populations explained by natural biophysical drivers highlights the need for locally appropriate management targets on coral reefs.
Journal ArticleDOI

Working with, not against, coral-reef fisheries

TL;DR: In Palau, reef fish are consumed locally, while Palauan laws ban the export of reef resources as mentioned in this paper, which is consistent with the high gross primary production with little excess net production from undisturbed coral-reef ecosystems.
Journal ArticleDOI

Demographic plasticity facilitates ecological and economic resilience in a commercially important reef fish

TL;DR: Reconstructed growth histories and population models demonstrated that variable growth types within populations can yield this peculiar biphasic mortality schedule, where fast growers enjoy early reproductive outputs at the expense of greater mortality, and benefits for slow growers derive from extended reproductive outputs over a greater number of annual cycles.
Journal ArticleDOI

Linear decline in red snapper (Lutjanus campechanus) otolith Δ14C extends the utility of the bomb radiocarbon chronometer for fish age validation in the Northern Gulf of Mexico

TL;DR: Barnett et al. as discussed by the authors used the bomb radiocarbon chronometer for fish age validation in the Northern Gulf of Mexico and found a linear decline in red snapper (Lutjanus campechanus) otolith values.
Journal ArticleDOI

Use of post-bomb radiocarbon dating to validate estimated ages of Pacific bluefin tuna, Thunnus orientalis, of the North Pacific Ocean

TL;DR: In this paper, the ages of Pacific bluefin tuna (PBF), Thunnus orientalis, were validated by a novel use of post-bomb radiocarbon dating, based on a metric of the abundance of 14C relative to 12C in the core portion of the otoliths of PBF.
References
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Book

Nonparametric statistics for the behavioral sciences

Sidney Siegel
TL;DR: This is the revision of the classic text in the field, adding two new chapters and thoroughly updating all others as discussed by the authors, and the original structure is retained, and the book continues to serve as a combined text/reference.
Journal ArticleDOI

Characterizing aquatic dissolved organic matter.

TL;DR: In this article, standards for reporting C-14 age determinations are discussed, and the statistical uncertainty (plus or minus one standard deviation) expresses counting errors, inaccuracies in voltage, pressure, temperature, dilution, and should include errors in C-13 ratios.
Journal ArticleDOI

A Flexible Growth Function for Empirical Use

TL;DR: In the empirical approach the magnitudes of the constants in the fitted equations may be used to assess the importance in growth of experimentally controllable factors, but the constants themselves are not regarded as having any absolute significance for the theory of growth.
Book

Tracers in the Sea

Journal ArticleDOI

Accuracy, precision and quality control in age determination, including a review of the use and abuse of age validation methods

TL;DR: This review highlights the best available methods for insuring ageing accuracy and quantifying ageing precision, whether in support of large-scale production ageing or a small-scale research project.
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