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首页> 外文期刊>Marine ecology progress series >Available Benthic Energy Coefficient (ABEC): a generic tool to estimate the food profitability in coastal fish nurseries
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Available Benthic Energy Coefficient (ABEC): a generic tool to estimate the food profitability in coastal fish nurseries

机译：可用的底栖能量系数（ABEC）：一种用于估算沿海鱼类苗圃食品获利能力的通用工具

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摘要

The benthic production of prey seems to be one of the main drivers among many environmental factors that influence the quality of fish nurseries and potentially limit their carrying capacity. However, the contribution of food availability in the growth and survival of juveniles is still controversial. The Available Benthic Energy Coefficient (ABEC) aims to assess the trophic profitability of benthic invertebrate prey; this concept reflects the combination of energy richness and availability of prey. A value of the coefficient was associated with each prey species. This value was calculated from the product of 4 components: (1) mass energy, (2) productivity, (3) regeneration, and (4) accessibility. Thus, this coefficient is expressed as a quantity of energy per unit of weight and per year. From this coefficient, it is simple to calculate the annual production of profitable energy for the fish community in a delimited nursery; it only needs information about the biomass of benthic invertebrates via a standard sampling method. This tool appears to be decisive in properly estimating the carrying capacity of such a fish nursery. Prey classifications based on taxonomy or trophic guilds are widely used in predator-prey studies; comparison with a classification based on ABEC highlighted the energetic heterogeneity of these groups. ABEC can also be used as an index of profitable energy, thereby substituting the usual classifications of prey in trophic studies.
机译：底栖猎物的生产似乎是影响鱼类苗圃质量并可能限制其承载能力的许多环境因素中的主要驱动因素之一。但是，食物供应量对少年的生长和存活的贡献仍然存在争议。可利用的底栖动物能量系数（ABEC）旨在评估底栖无脊椎动物猎物的营养收益率；这个概念反映了能量丰富性和猎物可获得性的结合。该系数的值与每个猎物种类相关。此值是由以下四个部分的乘积计算得出的：（1）质量能，（2）生产率，（3）再生和（4）可达性。因此，该系数表示为每单位重量和每年的能量。根据这个系数，可以很容易地计算出一个划定的苗圃中鱼类群落的年可获利的能源产量；它只需要通过标准采样方法获取有关底栖无脊椎动物生物量的信息。该工具对于正确估计这种鱼苗场的承载能力似乎起着决定性作用。基于分类学或营养协会的猎物分类在捕食者－猎物研究中被广泛使用。与基于ABEC的分类的比较强调了这些群体的能量异质性。 ABEC也可以用作获利能量的指标，从而取代营养研究中通常的猎物分类。

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