西北太平洋柔鱼角质颚微结构及其生长纹周期性研究
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- 英文论文题名：Beak microstructure and validation of growth increments of neon flying squid in the Northwest Pacific Ocean
- 论文作者：刘必林 ; 林静远 ; 陈新军
- 英文论文作者：Liu Bi-lin ; Lin Jing-Yuan ; Chen Xin-jun ; College of Marine Sciences ; Shanghai Ocean University ; National Distant-water Fisheries Engineering Research Center ; Shanghai Ocean University ; The Key Laboratory of Sustainable Exploitation of Oceanic Fisheries Resources ; Ministry of Education ; Shanghai Ocean University ; Collaborative Innovation Center for Distant-water Fisheries
- 年：2016
- 作者机构：上海海洋大学海洋科学学院;国家远洋渔业工程技术研究中心;大洋渔业资源可持续开发省部共建教育部重点实验室;远洋渔业协同创新中心;
- 论文关键词：生长纹 ; 柔鱼 ; 角质颚 ; 西北太平洋 ; 日龄
- 英文论文关键词：Growth increments ; Ommatrephes bartramii ; Beak ; Northwest Pacific Ocean ; Age
- 会议召开时间：2016-11-02
- 会议录名称：2016年中国水产学会学术年会论文摘要集
- 语种：中文
- 分类号：S917.4
- 学会代码：OGSB
- 会议名称：2016年中国水产学会学术年会
- 会议地点：中国四川成都
- 主办单位：中国水产学会、四川省水产学会
- 学会名称：中国水产学会
- 页数：1
- 文件大小：535k
- 原文格式：D
- 会议级别：全国
摘要
本文分析了采集于北太平洋海域的35尾柔鱼(Ommastrephes bartramii)角质颚的微结构,并对其生长纹的周期性进行了验证。研究结果显示,上颚喙部截面由头盖和脊突两部分组成,周期性的生带明显,每条生长带由明、暗相间的两条生长纹组成。头盖部的生长纹明显比脊突部的清晰,两者交汇于内轴成"<"形。喙部顶端以及后端常有明显的标记轮,其形成与个体发育期的特殊事件以及外界的突发事件有关。角质颚生长纹数目与耳石日龄相当(p<0.05)证明,柔鱼角质颚生长纹的沉积为"一日一纹"。根据角质颚生长纹估算柔鱼的生命周期小于1年,样本胴长、体重和角质颚喙长与日龄呈显著的逻辑斯蒂关系。研究结果不仅为柔鱼类年龄鉴定和生长估算提供新方法,而且为我国头足类学者开展相关研究提供重要基础。
In this study, we analyzed the microstructure of upper beak rostrum sagittal section(RSS) and validate the periodicity of the formation of increments based on 35 Ommatrephes bartramii specimens collected from northwest Pacific Ocean. RSS are composed of hood and crest,where periodic growth bands including one light and one dark increment are distinct. The increments within hood are much clearer than those in crest and they show a pattern of "<" when meet together at the region of internal rostral axis. We found some stress checks in the anterior and posterior part of RSS might relate to special ontogenetic events or external accident. No significant difference between the number of growth increments in beak RSS and statolith determined age show that the formation of beak increments is daily. Estimated age of samples showed that O. bartramii longevity is less than 1 year, and mantle length(ML), body weight(BW)and upper rostrum length(URL) were best described by Logistic models.
In this study, we analyzed the microstructure of upper beak rostrum sagittal section(RSS) and validate the periodicity of the formation of increments based on 35 Ommatrephes bartramii specimens collected from northwest Pacific Ocean. RSS are composed of hood and crest,where periodic growth bands including one light and one dark increment are distinct. The increments within hood are much clearer than those in crest and they show a pattern of "<" when meet together at the region of internal rostral axis. We found some stress checks in the anterior and posterior part of RSS might relate to special ontogenetic events or external accident. No significant difference between the number of growth increments in beak RSS and statolith determined age show that the formation of beak increments is daily. Estimated age of samples showed that O. bartramii longevity is less than 1 year, and mantle length(ML), body weight(BW)and upper rostrum length(URL) were best described by Logistic models.
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