委内瑞拉中部海岸岩石台地上lucunter(棘皮科,棘皮总科)的丰度和分布

IF 1 4区 生物学 Q4 ECOLOGY Marine Biology Research Pub Date : 2023-05-28 DOI:10.1080/17451000.2023.2224027
Raibel Núñez-González, S. M. Pauls
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引用次数: 0

摘要

摘要/ ABSTRACT摘要:Echinometra lucunter是一种常见的加勒比海海胆,在委内瑞拉cpe海滩的一个岩石平台上对其丰度和分布进行了评估。两次调查沿垂直和平行于海岸的横断面进行,从海岸到破波带(WB),采用1m2样方法。在调查-1中,潮池区以小于1.8 cm的小海胆为主,潮池区以中、大海胆为主。WB和TP记录的平均密度(分别为140.2和272.7 ind/m2)是加勒比地区报告的最高值之一。TP最大密度为562 ind/m2,以<1.8 cm的幼鱼居多。调查-2海胆(³3.0 cm)密度范围为1 ~ 156 ind/m2,总体平均值为29.6(±32.4)ind/m2。以台地西段密度最高(平均43.2±41.3 ind/m2)。在与海岸平行的样带中,海胆的丰度由海岸(130±12 ind/m2)向海岸(0.3±0.37 ind/m2)逐渐减少。综上所述,在Cepe海滩平台上记录的E. lucunter密度是加勒比地区报告的最高值。
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Abundance and distribution of Echinometra lucunter (Echinodermata, Echinoidea) at a rocky platform on the central coast of Venezuela
ABSTRACT Echinometra lucunter is a common Caribbean sea urchin, which the abundance and distribution were evaluated along a rocky platform at Cepe beach, Venezuela. Two surveys were conducted along transects perpendicular and parallel to the coast, from the shore to the wave breaking zone (WB), using 1m2 quadrat method. In survey-1 the smaller sea urchins (<1.8 cm) occurred in the tide pool zone (TP) and medium and large dominated in the WB. The average density recorded in the WB and TP (140.2 and 272.7 ind/m2 respectively) are among the highest values reported in the Caribbean. The maximum density recorded was 562 ind/m2 in the TP and most of them were juveniles (<1.8 cm). In survey-2 sea urchins (³3.0 cm) density ranged from 1 to 156 ind/m2 and the overall average was 29.6 (± 32.4) ind/m2. The highest density occurred in the platform western sector (average 43.2 ±41.3 ind/m2). In the transects parallel to the coast the sea urchin's abundance gradually decreased from the WB (130 ±12 ind/m2) towards the coast (0.3 ±0.37 ind/m2). In conclusion, the E. lucunter densities recorded on the Cepe beach platform are the highest values reported in the Caribbean.
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来源期刊
Marine Biology Research
Marine Biology Research 生物-海洋与淡水生物学
CiteScore
2.10
自引率
0.00%
发文量
55
审稿时长
6-12 weeks
期刊介绍: Marine Biology Research (MBRJ) provides a worldwide forum for key information, ideas and discussion on all areas of marine biology and biological oceanography. Founded in 2005 as a merger of two Scandinavian journals, Sarsia and Ophelia, MBRJ is based today at the Institute of Marine Research, Bergen, Norway. The Journal’s scope encompasses basic and applied research from all oceans and marine habitats and on all marine organisms, the main criterium for acceptance being quality.
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