关键词: Carry-over effects Embryos Invertebrates Larvae Noise

来  源:   DOI:10.1016/j.marpolbul.2024.116564

Abstract:
Anthropogenic noise is considered one important global pollutant. The impact of noise on marine invertebrates has been less assessed. The present study evaluated the chronic effect of the motorboat noise obtained from a lagoon\'s soundscape, the natural habitat of the key crab Neohelice granulata, on its whole embryonic development, considering morphological and physiological carryover effects on embryos and hatched larvae. Results demonstrated that embryonic development was shortened under noise exposure. The effects on advanced embryos, larvae and adult females were: increased heartbeats and non-viable eggs, and decreased fecundity. Biochemical responses showed lipid peroxidation in embryos while antioxidant enzymes were activated in larvae and adults, indicating a counteracting effect related to the life stage. The negative effects on fitness offspring may imply ecological consequences at the population level. Results are discussed in terms of the ecosystem engineer species studied and the habitat, a MAB UNESCO Reserve lagoon, suggesting the urgent need to develop mitigation plans.
摘要:
人为噪声被认为是一种重要的全球污染物。噪声对海洋无脊椎动物的影响评估较少。本研究评估了从泻湖声景获得的摩托艇噪声的慢性影响,关键蟹Neohelicegranulata的自然栖息地,在整个胚胎发育过程中,考虑形态和生理遗留物对胚胎和孵化幼虫的影响。结果表明,在噪声暴露下,胚胎发育缩短。对晚期胚胎的影响,幼虫和成年雌性是:心跳增加和无法存活的卵,和减少繁殖力。生化反应显示胚胎中的脂质过氧化,而幼虫和成虫中的抗氧化酶被激活,表明与生命阶段有关的抵消作用。对健康后代的负面影响可能意味着种群水平的生态后果。根据研究的生态系统工程师物种和栖息地讨论了结果,联合国教科文组织保护区泻湖,这表明迫切需要制定缓解计划。
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