基于不同人工鱼巢研究黄颡鱼的产卵偏好性
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作者:
作者单位:

1. 上海海洋大学水产科学国家级实验教学示范中心, 上海 201306;
2. 南京农业大学无锡渔业学院, 江苏 无锡 214081;
3. 中国水产科学研究院淡水渔业研究中心, 农业农村部长江下游渔业资源环境科学观测实验站, 江苏 无锡 214081

作者简介:

杨雪军(1993-),女,硕士研究生,专业方向为繁殖生物学.E-mail:1121064240@qq.com

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中图分类号:

S963;S931

基金项目:

农业农村部物种资源保护专项(213013500804);中央级公益性科研院所基本科研业务费专项(2017JBFR04).


Spawning preference of yellow catfish (Pelteobagrus fulvidraco) for different artificial fish nests
Author:
Affiliation:

1. National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China;
2. Wuxi Fisheries College, Nanjing Agricultural University, Wuxi 214081, China;
3. Scientific Observing and Experimental Station of Fishery Resources and Environment in the Lower Reaches of the Changjiang River, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi 214081, China

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    摘要:

    为探索黄颡鱼()繁殖时期对人工鱼巢的偏好性,2018年6-7月开展了不同水温条件下黄颡鱼对不同鱼巢颜色和材质产卵偏好性的对比实验。实验用产卵鱼巢为半球形棕榈空鱼巢(直径25 cm,深12 cm);同规格内部放置4~6枚碎石块的棕榈鱼巢和塑料鱼巢;折叠6层尼龙渔网(30 cm×40 cm)和棕榈片(30 cm×40 cm)鱼巢,于水泥池(290 cm×120 cm×100 cm)内开展两种温度区间条件下产卵偏好性实验。实验用黄颡鱼亲本雌雄比例为1:1,雌鱼体长(167.8±19.0)mm,体重(99.9±21.7)g;雄鱼体长(235.1±18.8)mm,体重(188.5±38.1)g。结果表明,在24~26℃水环境下,半球形棕色棕榈(无石子)鱼巢内个体平均附卵量为628.49粒/m2,个体单位面积平均附卵率为2.77%;28~32℃水环境下,半球形棕榈(无石子)个体平均附卵量为225.48粒/m2,个体单位面积平均附卵率为1.40%。结果分析发现,24~26℃是黄颡鱼产卵的最适水温区间;黄颡鱼对棕色鱼巢产卵偏好显著(<0.05),而对其他材质鱼巢的偏好性依次为:半球形棕榈(有石子) > 平铺棕榈片 > 悬挂棕榈片 > 半球形塑料 > 水泥池。可见,黄颡鱼产卵的最佳偏好为24~26℃水环境下棕色半球形棕榈鱼巢。本研究结果对黄颡鱼的人工繁殖、产沉黏性卵鱼类产卵场的修复和资源增殖有重要的指导意义。

    Abstract:

    To explore the spawning preferences of yellow catfish () for artificial fish nests during the breeding period, preferences for different nest colors and materials were determined under different water temperatures in June to July 2018. The experimental spawning fish nests were hemispherical (25 cm in diameter and 12 cm deep). Gravel palm and plastic fish nests (4-6 pieces) were placed in the same specification. Additionally, 6-layer nylon fishing nets (30 cm×40 cm) and palm pieces of fish nests (30 cm×40 cm) were folded. In the cement tank (290 cm×120 cm×100 cm), the egg-laying preference experiment was carried out under two temperature intervals (24-26℃ and 28-32℃). The ratio of males to females in the experimental compartment was 1:1. The body length and weight of females was (167.8±19.0) mm and (99.9±21.7) g, respectively, whilst for males the body length and weight was (235.1±18.8) mm and (188.5±38.1) g, respectively. The results showed that the average number of eggs in the hemispherical brown palm (no stone) fish nest, under a water temperature of 24-26℃, was 628.49 grains/m2 and the average egg attachment rate per unit area was 2.77%. The average egg attachment in the hemispherical palm (no stones) fish nest, under a water temperature of 28-32℃, was 225.48 grains/m2 and the average egg attachment rate per unit area was 1.40%. After analyzing the experimental results, it was concluded that 24-26℃ is the optimal water temperature range for yellow catfish spawning. The analysis also showed that yellow catfish have a significant preference for spawning in brown fish nests (<0.05), compared to gray, pink, yellow, and green nests. Furthermore, the sticking effect of eggs on the hemispherical palm (no stone) fish nest was significant (<0.05). The diminishing preference order for other fish nests was:hemispherical palm (with stones) > flat palmettos > hanging palms > hemispherical plastics > cement pool. For sticking eggs, the top preference is the brown hemispherical palm fish nest under the water temperature environment of 24-26℃. The results of this study have important significance for guiding the artificial reproduction of yellow catfish, spawning field repair, and resource proliferation of sticky egg fish.

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杨雪军,王邢艳,冯晓婷,刘熠,杨习文,方弟安,徐东坡.基于不同人工鱼巢研究黄颡鱼的产卵偏好性[J].中国水产科学,2020,27(2):213-223
YANG Xuejun, WANG Xingyan, FENG Xiaoting, LIU Yi, YANG Xiwen, FANG Di'an, XU Dongpo. Spawning preference of yellow catfish (Pelteobagrus fulvidraco) for different artificial fish nests[J]. Journal of Fishery Sciences of China,2020,27(2):213-223

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  • 在线发布日期: 2020-02-13
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