Collaborative Research: The impact of multiple nursery areas and adult age structure on the population dynamics of marine fishes
合作研究:多个育苗区和成体年龄结构对海洋鱼类种群动态的影响
基本信息
- 批准号:0961421
- 负责人:
- 金额:$ 57万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Continuing Grant
- 财政年份:2010
- 资助国家:美国
- 起止时间:2010-06-15 至 2014-05-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Many marine populations exhibit complex life histories in which larval and juvenile stages are spatially separated from adults. This is the case for many coastal-spawning, estuarine-dependent fishes which utilize multiple estuaries as nursery grounds to ensure that recruitment failure in any single estuary does not translate to total recruitment failure at the population level. For these species, the location and timing of spawning is believed to regulate the pattern of supply of larvae to potential estuarine nursery areas. Furthermore, many of these species exhibit age-dependent coastal migrations which increase in amplitude with age. Thus, there is the potential that changes in the age structure in the population can affect the pattern of supply of larvae to nursery areas and structure the pattern of recruitment. The investigators will carry out an integrated empirical and simulation approach to study the sources, patterns and consequences of larval supply to estuarine nursery areas for Atlantic menhaden (Brevoortia tyrannus) along the East Coast of the US. The first goal will be to quantify the contribution of these nursery areas to coast wide recruitment. Juvenile menhaden from nursery areas from Massachusetts to Georgia will be sampled and the microchemical constituents of their otoliths will be characterized. These chemical signatures will be used to assign the nursery affinities of adult menhaden in the coastwide population. The investigators will test the null hypothesis that the Chesapeake Bay remains the most important source of recruits to the population. By determining the nursery affinities of adults from different year classes in the population they will assess whether the contribution of nurseries varies or has shifted over time. The second goal is use a population model linked to an individual-based coupled physical-biological model of recruitment to evaluate whether the known age-dependent migrations of adult menhaden are sufficient to cause the observed shifts in the distribution of larval menhaden that seed potential nursery areas. The simulation model will assist in evaluating mechanisms behind observed changes in the distribution of juvenile menhaden.This work will contribute to the fundamental understanding of the regulation of spatially-structured marine populations. The last decade has seen the range extension of several estuarine-dependent marine species with dispersive larvae and the long-term recruitment decline of others. This integrated research program seeks to explore the effects of population demography, oceanographic circulation, and nursery site diversity on subsequent population dynamics. Given the documented changes in habitat quality in many estuarine nursery areas, and the anticipated impacts of climate change on oceanographic circulation, distributional changes in individual species are likely to become more common. Moreover, given the pivotal role that many estuarine-dependent species play in many marine ecosystems, understanding distributional changes will have direct consequences for the structure and function of the ecosystems to which they belong. The project will also train young scientists in areas of research (quantitative fisheries ecology, physical oceanography) for which there is current a national need.
许多海洋种群表现出复杂的生活史,其中幼虫和少年阶段与成年人在空间上分开。这是许多沿海产卵,河口依赖鱼类的情况下,利用多个河口作为育苗场,以确保招聘失败,在任何一个单一的河口不转化为总招聘失败的人口水平。对于这些物种来说,产卵的地点和时间被认为是调节幼虫供应到潜在河口苗圃区的模式。此外,许多这些物种表现出年龄依赖性的沿海迁移,随着年龄的增长,幅度增加。因此,种群年龄结构的变化可能会影响幼虫向苗圃区的供应模式,并影响招募模式。调查人员将进行一个综合的经验和模拟的方法来研究的来源,模式和后果的幼虫供应到河口育苗区大西洋鲱鱼(Brevoortia hennus)沿着美国东海岸。第一个目标将是量化这些苗圃地区对海岸范围内招募的贡献。从马萨诸塞州到格鲁吉亚的苗圃地区采集青少年鲱鱼样本,并对其耳石的微量化学成分进行表征。这些化学特征将被用来分配成年鲱鱼在沿海人口的托儿所亲和力。调查人员将检验零假设,即切萨皮克湾仍然是人口最重要的新兵来源。通过确定人口中不同年龄段成年人的托儿所亲和力,他们将评估托儿所的贡献是否随时间而变化或发生变化。第二个目标是使用一个人口模型,以个人为基础的耦合的物理-生物模型的招聘,以评估是否已知的成年鲱鱼的年龄依赖性迁移足以导致所观察到的变化,在分布的幼虫鲱鱼种子潜在的苗圃地区。该模拟模型将有助于评估所观察到的青少年鲱鱼分布变化背后的机制,这项工作将有助于从根本上了解空间结构的海洋种群的调节。在过去十年中,一些依赖河口的海洋物种的分布范围扩大,其幼虫分散,而另一些物种的长期补充减少。这一综合研究计划旨在探索人口统计学,海洋环流和苗圃地多样性对随后的人口动态的影响。鉴于许多河口苗圃地区栖息地质量的变化,以及气候变化对海洋环流的预期影响,个别物种的分布变化可能会变得更加普遍。此外,鉴于许多依赖河口的物种在许多海洋生态系统中发挥着关键作用,了解分布变化将对它们所属的生态系统的结构和功能产生直接影响。该项目还将在国家目前需要的研究领域(定量渔业生态学、物理海洋学)培训青年科学家。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Cynthia Jones其他文献
The Perception of obesity by normal-weight versus obese school-age children
正常体重与肥胖学龄儿童对肥胖的看法
- DOI:
- 发表时间:
1986 - 期刊:
- 影响因子:2.9
- 作者:
Carol R. Counts;Cynthia Jones;C. Frame;G. Jarvie;C. Strauss - 通讯作者:
C. Strauss
Preserving Life, Destroying Privacy: PICT and the Elderly
保护生命,破坏隐私:PICT 和老年人
- DOI:
10.1007/978-94-007-6833-8_6 - 发表时间:
2014 - 期刊:
- 影响因子:0
- 作者:
Cynthia Jones - 通讯作者:
Cynthia Jones
The effects of animal-assisted therapy on wounded warriors in an Occupational Therapy Life Skills program.
职业治疗生活技能计划中动物辅助治疗对受伤战士的影响。
- DOI:
- 发表时间:
2012 - 期刊:
- 影响因子:0
- 作者:
C. Beck;Florie Gonzales;Carol Haertlein Sells;Cynthia Jones;Theresa Reer;Y. Y. Zhu - 通讯作者:
Y. Y. Zhu
A Qualitative Exploration of Autonomy and Engagement for Young Women of Color in Community College
社区大学有色人种年轻女性自主性和参与度的定性探索
- DOI:
- 发表时间:
2014 - 期刊:
- 影响因子:0
- 作者:
L. Rose;Precious Sellars;Cynthia Jones;A. Trinidad;Joanne Pierre;Adhiambo Okomba - 通讯作者:
Adhiambo Okomba
Book Review: Hidden Mercy: AIDS, Catholics, and the Untold Stories of Compassion in the Face of Fear
书评:隐藏的慈悲:艾滋病、天主教徒和面对恐惧时不为人知的同情故事
- DOI:
10.1177/00243639231197426 - 发表时间:
2023 - 期刊:
- 影响因子:0
- 作者:
Cynthia Jones - 通讯作者:
Cynthia Jones
Cynthia Jones的其他文献
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{{ truncateString('Cynthia Jones', 18)}}的其他基金
Collaborative Research: Resistance, Repair and Redundancy: Traits that protect shrubs against drought-induced hydraulic failure
合作研究:抵抗、修复和冗余:保护灌木免受干旱引起的水力衰竭的特性
- 批准号:
0641569 - 财政年份:2007
- 资助金额:
$ 57万 - 项目类别:
Continuing Grant
Natural tags to Estimate the Value of Juvenile Nurseries
评估幼苗保育园价值的自然标签
- 批准号:
0525964 - 财政年份:2005
- 资助金额:
$ 57万 - 项目类别:
Standard Grant
REU Site: MUST - Minority Undergraduate Scholarship and Training
REU 网站:MUST - 少数民族本科生奖学金和培训
- 批准号:
0244035 - 财政年份:2003
- 资助金额:
$ 57万 - 项目类别:
Continuing Grant
Bomb-Dated Growth Dynamics of Arctic Fishes
北极鱼类的爆炸日期生长动态
- 批准号:
9985884 - 财政年份:2000
- 资助金额:
$ 57万 - 项目类别:
Continuing Grant
Recruitment of Marine Fish Larvae to Estuarine Nursery Systems: Insights from High Resolution Analysis of Otolith Chemistry and Hydrodynamics
将海洋鱼类幼虫招募到河口育苗系统:耳石化学和流体动力学高分辨率分析的见解
- 批准号:
9876565 - 财政年份:1999
- 资助金额:
$ 57万 - 项目类别:
Continuing Grant
Aquisition of a High Resolution Inductively-Coupled Plasma Mass Spectrometer for Analysis of Biological, Environmental,and Chemical Samples
获取用于分析生物、环境和化学样品的高分辨率电感耦合等离子体质谱仪
- 批准号:
9871047 - 财政年份:1998
- 资助金额:
$ 57万 - 项目类别:
Standard Grant
Retroactive Determination of Movement at Age in Relation to Water Mass in Patagonian Toothfish Through Laser-Based Elemental Analysis of Otoliths
通过基于激光的耳石元素分析追溯确定巴塔哥尼亚齿鱼年龄运动与水量的关系
- 批准号:
9614756 - 财政年份:1997
- 资助金额:
$ 57万 - 项目类别:
Standard Grant
Retrospective Determination of Atlantic Croaker Migration through Laser-Beamed Elemental Analysis of Otoliths
通过耳石激光束元素分析回顾性测定大西洋黄鱼的洄游
- 批准号:
9416579 - 财政年份:1995
- 资助金额:
$ 57万 - 项目类别:
Continuing Grant
RPG: Evolution of Whole Plant Ontogeny in Pelargonium
RPG:天竺葵全株个体发育的进化
- 批准号:
9408208 - 财政年份:1994
- 资助金额:
$ 57万 - 项目类别:
Standard Grant
Collaborative Research: Developmental Ecology of Mayapple
合作研究:Mayapple的发育生态学
- 批准号:
9410086 - 财政年份:1994
- 资助金额:
$ 57万 - 项目类别:
Continuing Grant
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Research on Quantum Field Theory without a Lagrangian Description
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- 批准年份:2007
- 资助金额:45.0 万元
- 项目类别:面上项目
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