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解放眉足蟹形态性状对重量性状影响的效果分析
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作者:张新明1 2  程顺峰3  张敏4 
单位:1. 日照职业技术学院海洋工程学院, 山东 日照 276826;
2. 日照市海洋生物工程技术研究中心, 山东 日照 276826;
3. 青岛农业大学生命科学学院, 山东 青岛 266109;
4. 青岛农业大学海洋科学与工程学院, 山东 青岛 266109
关键词:解放眉足蟹 生物学性状 重量 通径分析 回归分析 
分类号:S917
出版年·卷·期(页码):2020·27·1(62-73)
摘要:
为研究解放眉足蟹(Blepharipoda liberate Shen)形态性状与重量性状的关系,测量了解放眉足蟹甲高(C)、体长(L)、甲长(L1)、甲棘长(L2)、棘间长(L3)、棘间宽(W1)、甲宽(W2)、甲基宽(W3)、第一腹节长(F1)、第一腹节宽(F2)、螯长(A1)、螯棘长(A2)、湿重(WW)、干重(WD)等14个生物学指标,通过相关分析、通径分析和回归分析等方法进行了研究。结果表明解放眉足蟹雌性个体在14个数量指标上显著高于雄性(P<0.01),重量指标的变异系数大于形态指标,形态指标和重量指标呈极显著的相关关系(P<0.01)。对于雄性个体而言,体长(L)、甲棘长(L2)、棘间宽(W1)对湿重、干重的直接作用和直接决定系数较大;对于雌性性个体而言,体长(L)、甲宽(W2)对湿重、干重的直接作用和直接决定系数较大。雄性和雌性个体形态性状对湿重的回归方程分别为Y=-4.992+0.238LY=-9.903+0.285L+0.167W2。雄性和雌性个体形态性状对干重的回归方程分别为Y=-1.523+0.082L-0.04W1Y=-2.65+0.098L。本研究可为解放眉足蟹选育评价提供相关参考。
Blepharipoda liberate Shen is a small crustacean belonging to the arthropods. It is distributed within the low tide areas of the intertidal zone. It has a delicious taste and high nutritional value. At present, there are very few studies about B. liberate. Existing researches have focused on the classification, morphology, nutrition, and genetic diversity. There has been no research on the relationship between the morphological traits and weight characteristics. To study the relationship between the morphological characteristics and weight traits of B. liberate, fourteen biological indicators were measured, including carapace height (C), body length (L), carapace length (L1), carapace spine length (L2), spine length (L3), spine width (W1), carapace width (W2), carapace base width (W3), first abdominal segment length (F1), first abdominal segment width (F2), pincers length (A1), pincers spine length (A2), wet weight (WW), and dry weight (WD). These were studied by means of correlation analysis, path analysis, and regression analysis. The results showed that the female crabs had significantly higher values than the males for the 14 quantitative indicators (P<0.01). The coefficient of variation for the weight indicators was greater than that for the morphological traits, and the morphological and weight indicators were significantly correlated (P<0.01). For male individuals, the direct effects and direct determination coefficients of the body length, carapace spine length, and spine width for the wet and dry weights were larger. For female individuals, the direct effects and direct determination coefficients of the body length and carapace width for the wet and dry weights were larger. The regression equations for the morphological traits of the male and female individuals for the wet weight were Y=-4.992 + 0.238 L and Y=-9.903 + 0.285 L + 0.167W2, respectively. The regression equations for the morphological traits of the male and female individuals for the dry weight were Y=-1.523 + 0.082 L-0.04W1 and Y=-2.65 + 0.098 L, respectively. The indicators for morphological and weight traits of the male and female individuals were significantly different (P<0.01). The coefficient of variation for the weight index was greater than that for the morphological index. This shows that the selection of weight indicators has great potential, and it is feasible to carry out selective breeding of B. liberate with weight as the target trait. Stepwise regression analysis showed that the main indicator affecting male wet weight was body length (L), while the main indicators affecting female wet weight were body length (L) and carapace width (W2). Body length (L) and spine width (W1) have a greater decisive effect on dry weight of males, while body length (L) had a greater role in the dry weight of females. This study provides references for the evaluation of B. liberate breeding.
该文献标准引用格式:
ZHANG Xinming, CHENG Shunfeng, ZHANG Min.Analysis of the influence of the morphological characteristics on the weight characteristics of Blepharipoda liberate Shen[J].Journal of Fishery Sciences of China,2020,27(1):62-73.[张新明, 程顺峰, 张敏.解放眉足蟹形态性状对重量性状影响的效果分析[J].中国水产科学,2020,27(1):62-73.]
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