长江上游江津江段铜鱼种群参数和资源量评估

doi:10.11849/zrzyxb.20151067

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自然资源学报 ›› 2016, Vol. 31 ›› Issue (8) : 1420-1428. DOI: 10.11849/zrzyxb.20151067

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长江上游江津江段铜鱼种群参数和资源量评估

刘红艳¹, 熊飞^{1*, *}, 段辛斌², 刘绍平², 陈大庆²

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Estimating Population Parameters and Abundance of Coreius heterodon in Jiangjin Section of the Upper Yangtze River

LIU Hong-yan¹, XIONG Fei¹, DUAN Xin-bin², LIU Shao-ping², CHEN Da-qing²

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摘要

铜鱼是典型的半洄游性鱼类,曾是长江干流的重要渔获对象,但目前其资源已严重衰退。为了解三峡工程蓄水后、金沙江一期工程蓄水前该物种的种群动态,论文利用2007—2009年长江上游江津江段的渔业调查数据,采用体长频率法对其种群参数和资源量进行评估。结果表明：铜鱼渔获群体体长范围为125~530 mm,体重范围为24~2 250 g,平均体长为228.7±56.6 mm,平均体重为206.4±251.9 g;优势体长组为150~270 mm,约占总数的80.4%。铜鱼体长-体重幂函数关系为：W=7.63×10^-6L^3.10（R²=0.97,P<0.01,n=280）。由体长频率法拟合出其渐近体长L_∞为630.0 mm,生长系数k为0.23 a^-1。由Pauly经验公式估算出其自然死亡系数为0.46。由长度转渔获物曲线估算出其总死亡系数为1.82。江津江段铜鱼开捕体长为170.7 mm,资源开发率为0.75,超过了其资源最大开发率（0.50）。由体长结构实际种群分析估算出江津江段铜鱼2007、2008和2009年年资源量分别为2 820 尾/km（2.63 t/km）、3 035 尾/km（4.71 t/km）和8 130 尾/km（16.56 t/km）,平均值为4 661 尾/km（7.96 t/km）。在当前铜鱼资源急剧下降,长江中、下游资源近乎枯竭的现状下,建议停止对铜鱼资源开发,重点加强长江上游江津江段铜鱼种群保护及其生境修复。

Abstract

Coreius heterodon, a representative semi-migratory species, is one of the important economic fish species in the main channel of the Yangtze River. However, its resources has been in serious degradation. To understand its population dynamics after the Three Gorges Reservoir and before the Xiangjiaba and Xiluodu reservoirs were impounded, we used FAO-ICLARM Stock Assessment Tools based on length-frequency data to estimate the growth and mortality parameters, and population abundance of C. heterodon based on surveys in Jiangjin section conducted in 2007-2009. The fishes ranged from 125 to 530 mm in length and 24 to 2 250 g in weight, with an average length of 228.7 ± 56.6 mm and an average weight of 206.4 ± 251.9 g. The length group of 150-270 mm dominated the catches (80.4% of the total number). The length-weight relationship of C. heterodon fit well with a power function, W = 7.63×10^-6L^3.10 (R²= 0.97, P < 0.01, n = 280). Asymptotic length (L_∞) and growth constant (k) were estimated using length frequency data to be 630.0 mm and 0.23 a^-1, respectively. Natural mortality was estimated to be 0.46 using the empirical formula proposed by Pauly. The total mortality was estimated using a length-converted catch curve analysis to be 1.82. The minimum catchable size was 170.7 mm, and the exploitation rate observed was 0.75, which was higher than the estimated maximum exploitation rate (0.50). Population abundance of C. heterodon in Jiangjin section was estimated by length-structured virtual population analyses to be 2 820 ind·km^-1 (2.63 t·km^-1) in 2007, 3 035 ind· km^-1 (4.71 t· km^-1) in 2008, and 8 130 ind·km^-1 (16.56 t· km^-1) in 2009, respectively, with an study average of 4 661 ind· km^-1 (7.96 t· km^-1). In view of the rapidly declined resources of C. heterodon in the Yangtze River, especially in the lower reaches, we suggest to stop exploiting the resources immediately. We also suggest Jiangjin section should be considered as the prior region for population conservation and habitat restoration of C. heterodon.

导出引用

刘红艳, 熊飞, 段辛斌, 刘绍平, 陈大庆. 长江上游江津江段铜鱼种群参数和资源量评估[J]. 自然资源学报, 2016, 31(8): 1420-1428 https://doi.org/10.11849/zrzyxb.20151067

LIU Hong-yan, XIONG Fei, DUAN Xin-bin, LIU Shao-ping, CHEN Da-qing. Estimating Population Parameters and Abundance of Coreius heterodon in Jiangjin Section of the Upper Yangtze River[J]. JOURNAL OF NATURAL RESOURCES, 2016, 31(8): 1420-1428 https://doi.org/10.11849/zrzyxb.20151067

中图分类号： S932.1

参考文献

[1] 许蕴玕, 邓中粦, 余志堂, 等. 长江的铜鱼生物学及三峡水利枢纽对铜鱼资源的影响 [J]. 水生生物学集刊, 1981, 7(3): 271-294.

[2] 冷永智, 何立太, 魏清和. 葛洲坝水利枢纽截流后长江上游铜鱼的种群生物学及资源量估算 [J]. 淡水渔业, 1984, 14(5): 21-25.

[3] PARK Y S, CHANG J B, LEK S, et al. Conservation strategies for endemic fish species threatened by the Three Gorges Dam [J]. Conservation Biology, 2003, 17: 1748-1758.
[4] 李修峰, 黄道明, 谢文星, 等. 汉江中游鱼类资源现状 [J]. 湖泊科学, 2006, 17(4): 366-372.

[5] 蒋国福, 何学福. 嘉陵江下游鱼类资源现状调查 [J]. 淡水渔业, 2008, 38(2): 3-7.

[6] 王珂, 李翀, 段辛斌, 等. 三峡库区春季鱼类组成及分布特征 [J]. 淡水渔业, 2013, 43(3): 44-48.

[7] 高天珩, 田辉伍, 王涵, 等. 长江上游江津断面铜鱼鱼卵时空分布特征及影响因子分析 [J]. 水产学报, 2015, 39(8): 1099-1106.

[8] 熊飞, 刘红艳, 段辛斌, 等. 长江上游江津江段鱼类群落结构及资源利用 [J]. 安徽大学学报(自然科学版), 2014, 38(3): 94-102.

[9] 何学福. 铜鱼 Coreius heterodon (Bleeker)的生物学研究 [J]. 西南师范大学学报(自然科学版), 1980(2): 60-76.

[10] 许蕴玕, 邓中粦, 余志堂, 等. 葛洲坝水利枢纽兴建后铜鱼繁殖的生态效应 [J]. 水库渔业, 1984(3): 47-52.

[11] 刘乐和, 吴国犀, 王志玲. 葛洲坝水利枢纽兴建后长江干流铜鱼和圆口铜鱼的繁殖生态 [J]. 水生生物学报, 1990, 14(3): 205-215.

[12] 詹秉义. 渔业资源评估 [M]. 北京: 中国农业出版社, 1995.

[13] WANG Y G, ELLIS N. Maximum likelihood estimation of mortality and growth with individual variability from multiple length-frequency data [J]. Fishery Bulletin, 2005, 103: 380-391.
[14] 胡艳, 张涛, 杨刚, 等. 长江口近岸水域棘头梅童鱼资源现状的评估 [J]. 应用生态学报, 2015, 26(9): 2867-2873.

[15] 陈作志, 邱永松, 黄梓荣. 南海北部白姑鱼生长和死亡参数的估算 [J]. 应用生态学报, 2005, 16(4): 712-716.

[16] 李壮, 刘群. 应用渔业体长分析方法ELEFAN和SLCA估算鱼类生长参数的研究 [J]. 海洋湖沼通报, 2007(3): 81-87.

[17] 吴金明, 娄必云, 赵海涛, 等. 赤水河鱼类资源量的初步估算 [J]. 水生态学杂志, 2011, 32(3): 99-103.

[18] 丁瑞华. 四川鱼类志 [M]. 成都: 四川科学技术出版社, 1994.

[19] GAYANILO JR F C , SPARRE P, PAULY D. FAO-ICLARM Stock Assessment Tools II (User’s Guide) [M]. Worldfish Center, FAO, Rome, 2005.
[20] PAULY D. On the interrelationships between natural mortality, growth parameters, and mean environmental temperature in 175 fish stocks [J]. ICES Journal of Marine Science, 1980, 39: 175-192.
[21] 田辉伍, 段辛斌, 熊星, 等. 长江上游长薄鳅生长和种群参数的估算 [J]. 长江流域资源与环境, 2013, 22(10): 1305-1312.

[22] 吴斌, 方春林, 贺刚, 等. FiSAT II软件支持下的体长股分析法探讨 [J]. 南方水产科学, 2013, 9(4): 94-98.

[23] WANG X H, QIU Y S, DU F Y, et al. Population parameters and dynamic pool models of commercial fishes in the Beibu Gulf, northern South China Sea [J]. Chinese Journal of Oceanology and Limnology, 2012, 30: 105-117.
[24] LIU Q, XU B D, YE Z J, et al. Growth and mortality of small yellow croaker ( Larimichthys polyactis ) inhabiting Haizhou Bay of China [J]. Journal of Ocean University of China, 2012, 11: 1672-5182.
[25] 熊飞, 刘红艳, 段辛斌, 等. 长江上游江津和宜宾江段圆口铜鱼资源量估算 [J]. 动物学杂志, 2014, 49(6): 852-859.

[26] 庄平, 曹文宣. 长江中、上游铜鱼的生长特性 [J]. 水生生物学报, 1999, 22(6): 577-583.

[27] 陈大庆, 刘绍平, 段辛斌, 等. 长江中上游主要经济鱼类的渔业生物学特征 [J]. 水生生物学报, 2002, 26(6): 618-622.

[28] 严莉. 长江铜鱼种群生物学及遗传多样性分析 [D]. 武汉: 华中农业大学, 2005.

[29] 刘军, 王剑伟, 苗志国, 等. 长江上游宜宾江段长鳍吻鮈种群资源量的估算 [J]. 长江流域资源与环境, 2010, 19(3): 276-280.

[30] 周永东, 徐汉祥, 潘国良, 等. 东海区鲳鱼、小黄鱼资源量及其持续渔获量的估算 [J]. 浙江海洋学院学报(自然科学版), 2013, 32(1): 1-5.

[31] 伍献文, 等. 中国经济动物志——淡水鱼类 [M]. 北京: 科学出版社, 1963.

[32] 四川省嘉陵江水系鱼类资源调查组. 嘉陵江水系鱼类资源调查报告 [R]. 1980.

[33] CHEN D Q, XIONG F, WANG K, et al. Status of research on Yangtze fish biology and fisheries [J]. Environmental Biology of Fishes, 2009, 85: 337-57.
[34] 房敏, 蔡露, 王从锋, 等. 长江珍稀鱼类中华鲟物种特性及资源保护 [J]. 生态学杂志, 2014, 33(4): 1121-1127.

[35] 段辛斌, 田辉伍, 高天珩, 等. 金沙江一期工程蓄水前长江上游产漂流性卵鱼类产卵场现状 [J]. 长江流域资源与环境, 2015, 24(8): 1358-1365.

[36] FROESE R, BINOHLAN C. Empirical relationships to estimate asymptotic length, length at first maturity and length at maximum yield per recruit in fishes, with a simple method to evaluate length frequency data [J]. Journal of Fish Biology, 2000, 56: 758-773.