南海鸢乌贼中型群雄性个体肌肉和性腺组织能量积累及其分配
朱凯(1991—), 男, 博士研究生, 主要从事头足类繁殖生物学研究。E-mail: |
Copy editor: 孙淑杰
收稿日期: 2018-10-01
要求修回日期: 2019-02-22
网络出版日期: 2019-07-21
基金资助
国家自然科学基金((NSFC41276156);)
国家“八六三”高技术研究发展计划((2012AA092303);)
上海市自然科学基金((16ZR1415400);)
上海海洋大学大学生创新活动计划项目((B1-5002-17-0001-2).)
版权
Energy accumulation and allocation of somatic and reproductive tissues in medium form of male Sthenoteuthisoualaniensis in the South China Sea
Copy editor: SUN Shu-jie
Received date: 2018-10-01
Request revised date: 2019-02-22
Online published: 2019-07-21
Supported by
National Natural Science Foundation of China((NSFC41276156);)
National High TechnologyResearch and Development Program (863 Program)((2012AA092303);)
Natural Science Foundation of Shanghai (16ZR1415400)((16ZR1415400);)
Shanghai Ocean University College Students' innovation training program((B1-5002-17-0001-2).)
Copyright
利用组织能量密度测定技术和残差指标分析方法, 分析了南海鸢乌贼中型群雄性个体肌肉组织和性腺组织的能量积累及其分配变化过程。结果显示, 胴体、尾鳍、足腕、精荚复合体、精巢等组织的能量密度值分别为21.16±1.44、21.98±1.51、21.44±1.50、20.83±1.70和21.41±1.70kJ•g -1。胴体和精荚复合体两组织的能量密度在不同性腺成熟度之间均存在显著性差异, 而尾鳍、足腕、精巢等3种组织的能量密度则在不同性腺成熟度之间均没有统计学差异。个体总能量积累为299.31±90.81kJ; 随着个体生长, 总能量积累呈现增加的趋势。胴体、足腕和尾鳍等肌肉组织的能量占比为95.31%~98.04%, 随着性腺发育呈现降低的趋势; 精巢和精荚复合体等性腺组织的能量总投入占比为2.63%~5.33%, 随着性腺发育呈增加的趋势, 并在Ⅴ期达到最大值。同时, 残差指标分析显示, 胴体、尾鳍、足腕等肌肉组织能量积累-胴长残差与性腺组织能量积累-胴长残差呈显著的正相关关系, 表明个体性腺发育过程中肌肉组织能量没有转化用于性腺组织的生长发育, 其生殖能量投入倾向于外源性投入。初步掌握了南海鸢乌贼中型群雄性个体肌肉和性腺组织能量的积累变化过程, 为深入了解它们的繁殖策略和为可持续开发利用该种类资源提供了科学基础。
朱凯 , 张立川 , 陈新军 , 姚吉祥 , 韩飞 , 林东明 . 南海鸢乌贼中型群雄性个体肌肉和性腺组织能量积累及其分配[J]. 热带海洋学报, 2019 , 38(4) : 41 -51 . DOI: 10.11978/2018100
The energy accumulation and allocation of somatic and reproductive tissues in the medium form of male Sthenoteuthisoualaniensiswere were analyzed by using the technology of energy density determination combined with residual analysis. The results showed that the energy density of mantle, fins, arms, spermatophoric complex, and testis were 21.16±1.44, 21.98±1.51, 21.44±1.50, 20.83±1.70, and 21.41±1.70kJ·g -1, respectively. The energy density for tissue of mantle or spermatophoric complex varied significantly depending on sexual maturity stages, while there were no significant differences between sexual maturity stages for the tissue of fins, arms, or testis. The total energy accumulation for each individual was estimated at 299.31±90.81 kJ, and showed an increasing trend with body size growth. With regards to relative energy accumulation, the somatic tissues, including mantle, fins and arms, accounted for 95.31%~98.04% of the total energy accumulation, but decreased with maturation. The relative energy accumulation in reproductive tissues, being testis and spermatophoric complex, accounted for 1.96%~4.96% of the total energy accumulation, and increased with maturation, in which the maximum value was reached at stage V. The analysis of residuals of relationship between tissue absolute energy accumulation and mantle length, using Model II regression, showed a significantly positive correlation between somatic and gonadal tissues. This evidence suggests that there was no energy remobilization of somatic tissues to fuel reproduction during sexual maturation, and the mode of reproductive investment is more likely to be income breeding in the medium form of male S.oualaniensis. In this study, we preliminary established the progress of energy accumulation and its allocation in soma and reproductive organs for medium form of male S.oualaniensisin the South China Sea. These findings should assist future research on its reproductive strategy, as well as sustainable utilizationof this kind of resource in the area.
表1 鸢乌贼中型群雄性个体能量积累及其分配研究的样本组成Tab. 1 Specimens of the medium form of male S.oualaniensisused for the analysis of energy accumulation and allocation |
性腺成熟度 | 样本数 | 胴长/mm | 体重/g |
---|---|---|---|
Ⅰ | 11 | 100~121 (107.27±7.62) | 26.1~61.0 (41.51±9.23) |
Ⅱ | 9 | 118~125 (121.56±2.71) | 44.2~75.0 (59.81±9.68) |
Ⅲ | 12 | 113~136 (122.67±6.82) | 55.6~115.6 (72.97±17.50) |
Ⅳ | 22 | 110~136 (125.68±5.57) | 53.0~105.7 (82.49±12.75) |
Ⅴ | 15 | 110~137 (122.20±7.36) | 32.6~100.7 (68.22±18.24) |
总计 | 69 | 110~137 (120.63±10.57) | 26.1~100.7 (70.31±10.57) |
注: 括号内为平均值±SD。 |
图2 不同性腺成熟度鸢乌贼中型群雄性个体的组织能量密度各组平均值中标示的不同字母表示Tukey HSD检验差异显著(P<0.05), 下同。样本数69 Fig. 2 The tissue energy density in the medium form of male S. oualaniensis according to different maturity. Mean values with different scripts are significantly different (P<0.05) as determined using Tukey HSD test; the same below. Sample number is 69 |
图3 不同性腺成熟度鸢乌贼中型群雄性个体各组织绝对能量积累分布a. 胴体、尾鳍和足腕组织绝对能量积累; b. 精荚复合体和精巢组织绝对能量积累。样本量为69 Fig. 3 The absolute energy accumulation in medium form of male S.oualaniensis according to different maturity. a) Absolute energy accumulation for mantle, fins and arms; b) absolute energy accumulation for spermatophoric complex and testis. Sample number is 69 |
图5 不同性腺成熟度鸢乌贼中型群雄性个体肌肉组织和性腺组织的相对能量积累a. 肌肉组织相对能量积累; b. 性腺组织相对能量积累。样本量为69 Fig. 5 Relative energy accumulation in soma and reproductive tissues with maturity in the medium form of male S.oualaniensis. a) Relative energy accumulation in somatic tissues; b) relative energy accumulation in reproductive tissues. Sample number is 69 |
表2 鸢乌贼中型群雄性个体胴体、尾鳍、足腕、性腺等组织绝对能量积累与胴长的Model Ⅱ回归参数表Tab. 2 Model Ⅱ regression statistics between absolute energy accumulation of mantle (Eama), fins (Eafi), arms (Eaar), and gonad (Eago) and mantle length (Lm) for the medium form of maleS.oualaniensis |
组织能量-胴长 | 截距 | 截距95%置信区间 | 斜率 | 斜率95%置信区间 | R2 | 尾数 |
---|---|---|---|---|---|---|
Eama-Lm | -131.31 | -256.89 ~ -5.73 | 2.47 | 1.44~3.51 | 0.25 | 69 |
Eafi-Lm | -84.22 | -112.43 ~ -56.00 | 1.00 | 0.77~1.23 | 0.52 | 69 |
Eaar-Lm | -91.04 | -167.84 ~ -14.23 | 1.32 | 0.69~1.96 | 0.21 | 69 |
Eago-Lm | -43.54 | -60.98 ~ -26.09 | 0.45 | 0.31~0.59 | 0.37 | 69 |
图6 不同性腺成熟度鸢乌贼中型群雄性个体肌肉和性腺组织绝对能量积累-胴长残差分布a. 胴体绝对能量积累-胴长残差; b. 尾鳍绝对能量积累-胴长残差; c. 足腕绝对能量积累-胴长残差; d. 性腺绝对能量积累-胴长残差 Fig. 6 Distributions of residuals from the regressions of somatic and reproductive tissues absolute energy accumulation on mantle length in the medium form of male S.oualaniensis. a) Eama-Lm residuals; b) Eafi-Lm residuals; c) Eaar-Lm residuals; d) Eago-Lm residuals |
表3 鸢乌贼中型群雄性个体性腺组织绝对能量积累-胴长残差与肌肉组织绝对能量积累-胴长残差的Pearson相关性Tab. 3 Pearson correlation of residuals from reproductive tissues absolute energy accumulation-mantle length regression with somatic tissues absolute energy accumulation-mantle length residuals for medium form of male S.oualaniensis |
性腺成熟度 | 性腺vs.胴体 | 性腺vs.尾鳍 | 性腺vs.足腕 | |||
---|---|---|---|---|---|---|
Pearson相关性 | 显著性 | Pearson相关性 | 显著性 | Pearson相关性 | 显著性 | |
总体 | 0.39 | 0.001 | 0.67 | 0.009 | 0.67 | 0 |
Ⅰ | 0.62 | 0.04 | 0.85 | 0.001 | 0.11 | 0.74 |
Ⅱ | -0.52 | 0.15 | 0.15 | 0.70 | -0.76 | 0.02 |
Ⅲ | 0.54 | 0.07 | 0.36 | 0.25 | 0.19 | 0.78 |
Ⅳ | -0.01 | 0.961 | 0.33 | 0.14 | -0.30 | 0.17 |
Ⅴ | 0.59 | 0.021 | 0.74 | 0.002 | 0.68 | 0.005 |
图7 鸢乌贼中型群雄性个体胴体、尾鳍、足腕、性腺组织绝对能量积累与胴长Model Ⅱ回归拟合的残差关系图a. 胴体绝对能量积累-胴长残差与性腺绝对能量积累-胴长残差; b. 尾鳍绝对能量积累-胴长残差与性腺绝对能量积累-胴长残差; c. 足腕绝对能量积累-胴长残差与性腺绝对能量积累-胴长残差 Fig. 7 Relationships between residuals calculated from absolute energy accumulation-mantle length Model Ⅱ regression equations for mantle, fins, arms, and gonad in the medium form of male S.oualaniensis. a) Eama-Lm residuals vs. Eago-Lm residuals; b) Eafi-Lm residuals vs. Eago-Lm residuals; c) Eaar-Lm residuals vs. Eago-Lm residuals |
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