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首页> 外文期刊>Journal of the World Aquaculture Society >Production of the endangered Rio Grande silvery minnow, Hybognathus amarus, in the conservation rearing facility at the Los Lunas Silvery Minnow Refugium.
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Production of the endangered Rio Grande silvery minnow, Hybognathus amarus, in the conservation rearing facility at the Los Lunas Silvery Minnow Refugium.

机译：在Los Lunas Silver Minnow Refugium的养护设施中生产濒临灭绝的Rio Grande银色小鱼， Hybognathus amarus 。

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摘要

This article describes the initial season-long yield trial of raising the endangered Rio Grande silvery minnow, Hybognathus amarus, in the conservation rearing facility at the Los Lunas Silvery Minnow Refugium. Ten thousand fish (90,900/ha) were stocked on June 22, 2010. Production was based on a total of 653 mL (5.936 L/ha) of 11-37-0 N-P-K and 5.5 kg (50 kg/ha) of alfalfa pellets. Fish were harvested in October; almost all were harvested 18-27 October. At stocking, fish averaged 21.7 mm total length and mean weight was 0.10 g. At harvest, fish averaged 48.98 mm and 1.12 g. Fish were sampled monthly, and increased lengths and weights through the study were significant (P=0.05). Five thousand eight hundred ninety-two fish were harvested (58.92% survival). Yield was 59.99 kg/ha. Temperature, dissolved oxygen (DO), pH, un-ionized ammonia, nitrite, turbidity, alkalinity, and chloride were measured at seven sites throughout the outdoor refugium. Secchi disc visibility was measured in the stream and in the ponds. Only two variables (DO and pH) went outside permitted values, but were easily corrected. Harvest was difficult due to the many different naturalized areas consisting of varying depths, channel widths, and substrates.
机译：本文介绍了在洛斯卢纳斯（Los Lunas）银色小鱼now自然保护区的养护设施中饲养濒临灭绝的里约格兰德银色小鱼（iHybognathus amarus ）的最初的整季产量试验。 2010年6月22日放养了1万条鱼（90,900 / ha）。产量基于11-37-0 NPK总共653 mL（5.936 L / ha）和苜蓿颗粒5.5 kg（50 kg / ha） 。鱼在十月份收获; 10月18日至27日几乎都收获了。放养时，鱼的平均总长度为21.7毫米，平均体重为0.10克。收获时，鱼平均48.98毫米和1.12克。每月对鱼进行采样，并且通过研究增加了鱼的长度和体重（ P = 0.05）。收获了582条鱼（存活率58.92％）。产量为59.99千克/公顷。在整个户外避难所的七个位置测量了温度，溶解氧（DO），pH，未电离的氨，亚硝酸盐，浊度，碱度和氯化物。在溪流和池塘中测量了Secchi圆盘的能见度。只有两个变量（DO和pH）超出允许值，但易于校正。由于许多不同的归化区域（包括不同的深度，通道宽度和基质），收割困难。

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