窄爪小龙虾(Pontastacus leptodactylus)的肉产量和长重关系(Eschscholtz, 1823)

IF 0.3 Q4 MULTIDISCIPLINARY SCIENCES
Fatih Boyalık, Selçuk Berber, Semih Kale
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引用次数: 0

摘要

本文研究了Kocahıdır灌溉水库中窄爪小龙虾Pontastacus leptodactylus (Eschscholtz, 1823)的长重关系和产肉量。2015年7月至2016年6月,共采集了653只(雌性255只,雄性398只),测量了它们的甲壳长度(CL)、总长度(TL)和总重量(TW)。整个人口的男女比例为0.64:1.00。结果表明,窄爪螯虾的CL值为37 ~ 90 mm(雌39 ~ 79 mm,雄37 ~ 90 mm), TW值为10.10 ~ 165.61 g(雌11.13 ~ 90.01 g,雄10.16 ~ 165.61 g)。雌虫TL为114.09 mm,重40.43 g,雄虫TL为116.32 mm,重53.45 g。Kocahıdır灌溉水库小龙虾种群中,超过100 mm最小法定尺寸的个体比例为80.70%。回归分析表明,雌性窄爪螯虾的TL-TW和CL-TW关系表现为负异速生长,雄性窄爪螯虾的TL-TW关系和CL-TW关系表现为正异速生长。在TL-TW和CL-TW特征方面,整个种群中雄、雌个体均呈等长生长。甲壳长度为43 ~ 82 mm的雌虫螯肉产量为2.48%,腹肉产量为11.38%,总肉产量为13.85%。甲壳长度为35 ~ 90 mm的雄性窄爪小龙虾螯合肢剪切肉产率为4.13%,腹部肉产率为10.52%,总肉产率为14.64%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Meat Yield and the Length–Weight Relationships of the Narrow‐Clawed Crayfish, Pontastacus leptodactylus (Eschscholtz, 1823)
The present study investigated the length-weight relationships and meat yield of narrow-clawed crayfish, Pontastacus leptodactylus (Eschscholtz, 1823), in Kocahıdır Irrigation Reservoir. Between July 2015 and June 2016, a total of 653 individuals (255 females and 398 males) were sampled, and their carapace lengths (CL), total lengths (TL), and total weights (TW) were measured. The female-to-male ratio for the entire population was found to be 0.64:1.00. The results showed that the CL of the narrow-clawed crayfish ranged between 37 and 90 mm (39-79 mm for females and 37-90 mm for males), while the TW ranged from 10.10 to 165.61 g (11.13-90.01 g for females and 10.16-165.61 g for males). The TL of female individuals was 114.09 mm, with a weight of 40.43 g, while the TL of male individuals was 116.32 mm, with a weight of 53.45 g. The ratio of individuals above the minimum legal-size limit of 100 mm was determined to be 80.70% for the crayfish population in Kocahıdır Irrigation Reservoir. Regression analysis indicated that the TL-TW and CL-TW relationships for female narrow-clawed crayfish exhibited negative allometric growth, while males showed positive allometric growth in terms of the TL-TW relationship and isometric growth in terms of the CL-TW relationship. Isometric growth was observed in the whole population for both male and female individuals in terms of TL-TW and CL-TW characteristics. Female individuals with carapace lengths ranging from 43-82 mm had a chelae meat yield of 2.48%, an abdomen meat yield of 11.38%, and a total meat yield of 13.85%. Male narrow-clawed crayfish with carapace lengths ranging from 35 to 90 mm had a chelae shear meat yield of 4.13%, an abdomen meat yield of 10.52%, and a total meat yield of 14.64%.
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来源期刊
Momona Ethiopian Journal of Science
Momona Ethiopian Journal of Science MULTIDISCIPLINARY SCIENCES-
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13
审稿时长
12 weeks
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