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首页> 外文期刊>Marine biology >Effect of delayed first feeding on larval performance of the spider crab Maja brachydactyla assessed by digestive enzyme activities and biometric parameters
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Effect of delayed first feeding on larval performance of the spider crab Maja brachydactyla assessed by digestive enzyme activities and biometric parameters

机译：消化酶活性和生物特征参数评估延迟初次进食对蜘蛛蟹Maja brachydactyla幼虫性能的影响

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摘要

The effect of food deprivation on larval performance of the spider crab Maja brachydactyla was studied in terms of survival, moulting capacity, size, weight and enzymatic activities. Five feeding treatments that differed in the initial age of first feeding larvae (fed from hatching, 2, 4 and 6 days post-hatching and unfed) were tested for 20 days. Newly hatched larvae kept without food supply lasted for 10 days and did not mou with 50% survival observed at 6 days post-hatching. Larvae (zoea I stage) were only able to tolerate 2 days of food deprivation after the onset of exogenous feeding without their performance being compromised. Multivariate analyses suggest that digestive enzyme activities may be good indicators of the nutritional condition of larvae.
机译：从存活，换毛能力，大小，重量和酶活性方面研究了食物缺乏对蜘蛛蟹Maja brachydactyla幼体性能的影响。在20天中测试了五种不同的喂养方法，它们在初次喂养的幼虫的初始年龄（孵化后，孵化后2、4和6天喂养和未喂养）不同。在没有食物供应的情况下，新孵化的幼虫持续了10天并且没有蜕皮。在孵化后6天观察到50％的存活率。幼虫（zoea I期）仅能耐受外来喂养开始后2天的食物剥夺，而不会影响其性能。多元分析表明，消化酶活性可能是幼虫营养状况的良好指标。

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  • 来源
    《Marine biology》 |2010年第10期|p.2215-2227|共13页
  • 作者

    Guiomar Rotllant; Francisco Javier Moyano; Mireia Andres; Alicia Estevez; Manuel Diaz; Enric Gisbert;

  • 作者单位

    Unitat Operativa de Cultius Experimentals, IRTA,Carretera del Poblenou km 5.5, 43540 Sant Carles de la Rapita,Tarragona, Spain;

    rnDepartment of Biologia Aplicada, Escuela Politecnica Superior,Edificio CITE II-B, Universidad de Almerfa, Campus Universitario de la Canada, 04120 Almerfa, Spain;

    Unitat Operativa de Cultius Experimentals, IRTA,Carretera del Poblenou km 5.5, 43540 Sant Carles de la Rapita,Tarragona, Spain;

    Unitat Operativa de Cultius Experimentals, IRTA,Carretera del Poblenou km 5.5, 43540 Sant Carles de la Rapita,Tarragona, Spain;

    Department of Biologia Aplicada, Escuela Politecnica Superior,Edificio CITE II-B, Universidad de Almerfa, Campus Universitario de la Canada, 04120 Almerfa, Spain;

    Unitat Operativa de Cultius Experimentals, IRTA,Carretera del Poblenou km 5.5, 43540 Sant Carles de la Rapita,Tarragona, Spain;

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