珊瑚礁上鱼类繁殖潜力的全球模式和驱动因素
Jeneen Hadj-Hammou1, Joshua E Cinner2, Diego R Barneche3,4
1Lancaster University Environment Centre, Lancaster University, Lancaster, UK. jeneenhh@gmail.com.
Nature communications
|July 19, 2024
概括
珊瑚礁的繁殖潜力随着生物质的增加而增加,在受保护地区更高. 海洋保护区,就像30x30目标一样,可以促进鱼类种群和可持续渔业.
科学领域:
- 海洋生态海洋生态学
- 渔业 科学 渔业 科学
- 保护生物学 保护生物学
背景情况:
- 鱼类的生育能力 (卵子产量) 在个体层面上与身体质量相对应,以超度的比例变化.
- 在生态系统层面了解生殖潜力对于有效的渔业管理和保护至关重要.
研究的目的:
- 通过组装生物质估计全球珊瑚礁遗址的繁殖潜力.
- 为了比较完全受保护和捕捞地点之间的繁殖潜力.
- 评估增加海洋保护区对生殖潜力的影响.
主要方法:
- 分析了来自全球1633个珊瑚礁地点的数据.
- 基于聚合生物质的超度缩放模型的现场级繁殖潜力.
- 保护区和捕捞区之间的模拟生殖潜力进行了比较,重点是鱼家族.
主要成果:
- 现场层次的生殖潜力与聚合生物量具有超标尺度,比物种层面的指数更小.
- 完全受保护的地点比捕捞的地点具有更大的繁殖潜力,特别是在Serranidae.
- 在30%完全受保护的地点的情况下,所有家庭的生殖潜力显著增加.
结论:
- 这些发现支持30x30全球保护目标的生态效益.
- 海洋保护区是有效的管理工具,可以增强鱼群的补充和渔业的可持续性.
- 超度缩放原理可以应用于生态系统级生殖潜力的评估.
相关概念视频
01:06Fixed Action Patterns
15.9K
A fixed action pattern (FAP) is a specific, hard-wired sequence of behaviors that occurs in response to an external stimulus, called a sign stimulus. The behavior is “fixed” because it is essentially unchangeable—proceeding similarly across individuals of a species every time it occurs.
15.9K
01:24Testing a Claim about Population Proportion
3.3K
A complete procedure for testing a claim about a population proportion is provided here.
There are two methods of testing a claim about a population proportion: (1) Using the sample proportion from the data where a binomial distribution is approximated to the normal distribution and (2) Using the binomial probabilities calculated from the data.
The first method uses normal distribution as an approximation to the binomial distribution. The requirements are as follows: sample size is large...
There are two methods of testing a claim about a population proportion: (1) Using the sample proportion from the data where a binomial distribution is approximated to the normal distribution and (2) Using the binomial probabilities calculated from the data.
The first method uses normal distribution as an approximation to the binomial distribution. The requirements are as follows: sample size is large...
3.3K
01:07Speciation Rates
21.1K
Overview
21.1K
01:06Primary Production
23.6K
The total amount of energy acquired by primary producers in an ecosystem is called gross primary production (GPP). However, of this energy, producers use some for metabolic processes, and some is lost as heat, decreasing the amount of energy available to the next trophic level. The remaining usable amount of energy is called the net primary productivity (NPP). In terrestrial ecosystems, NPP is driven by climate, while light penetration and nutrient availability drive NPP in aquatic ecosystems.
23.6K
01:11Testing a Claim about Mean: Known Population SD
2.7K
A complete procedure of testing the hypothesis about a population mean is explained here.
Estimating a population mean requires the samples to be distributed normally. The data should be collected from the randomly selected samples having no sampling bias. The sample size needed to be higher than 30, and most importantly, the population standard deviation should be already known.
In most realistic situations, the population standard deviation is often unknown, but in rare circumstances, when it...
Estimating a population mean requires the samples to be distributed normally. The data should be collected from the randomly selected samples having no sampling bias. The sample size needed to be higher than 30, and most importantly, the population standard deviation should be already known.
In most realistic situations, the population standard deviation is often unknown, but in rare circumstances, when it...
2.7K
02:39Gene Flow
35.0K
Gene flow is the transfer of genes among populations, resulting from either the dispersal of gametes or from the migration of individuals.
35.0K