大西洋鱼Clupea harengus春季和秋季产卵的年内能量密度周期显示出不同的繁殖分配策略
Joseph B Warren1,2, Mark J Wuenschel3, Kenneth Oliveira1
1University of Massachusetts Dartmouth, North Dartmouth, Massachusetts, USA.
Journal of fish biology
|March 17, 2026
概括
大西洋鱼的能量密度 (ED) 根据季节和产卵组而异. 了解这些循环对于管理这个商业重要鱼类种群至关重要.
科学领域:
- 海洋生物学 海洋生物学
- 渔业 科学 渔业 科学
- 生态能源学 生态能源学
背景情况:
- 大西洋鱼 (Clupea harengus) 具有繁殖可塑性和可变的能量状况.
- 在西北大西洋精确的能量评估中,区分春季和秋季产卵队伍是关键.
- 历史数据表明,鱼的能量状况可能会下降.
研究的目的:
- 分析大西洋鱼中特定性别的能量分配模式.
- 为了估计能量密度 (ED) 和模拟不同产卵队伍的季节周期.
- 为解释鱼的能量状况和评估环境影响提供背景.
主要方法:
- 身体组织和生殖腺的近似组成分析 (水,脂质,蛋白质,灰).
- 对1104个鱼个体 (2021-2023) 的能量密度 (ED) 估计.
- 综合添加模型分析非线性ED周期,受产卵条件和一年中的日期影响.
主要成果:
- 确定了特定于性别的能量分配模式.
- 实体性ED周期显示非线性模式,根据产卵条件和一年中的日期而异.
- 最好的模型,包括一年的一天和产卵量之间的相互作用,解释了64.6%的偏差.
- 鱼ED在春天的变化较秋天的变化较小,因数量之间能量偏差较小.
结论:
- 随机特定的季节性体质ED周期为比较研究和长期趋势评估提供了至关重要的背景.
- 了解这些能源动态对于管理大西洋鱼作为单一库存综合体至关重要.
- 这项研究有助于评估鱼能量动态对环境的影响.
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