SPATIAL AND TEMPORAL VARIATION OF ZOOPLANKTON COMPOSITION NEAR WHALE SHARK SIGHTINGS IN PROBOLINGGO OF EAST JAVA, INDONESIA

Author:

Anggraini Nurlita Putri,Krisanti Majariana,Madduppa Hawis,Rizqi Himawan Mahardika

Abstract

Whale shark occurrence in Probolinggo differs from other Indonesian locales, suggesting a link to zooplankton availability. Zooplankton composition and whale shark emergence are the focus of this study. From December 2017 to November 2018, six observation points were made each month. A plankton net filters and lugol preserves water. Olympus CX23 microscope observations were repeated twice. The spatial analysis revealed varying whale shark numbers at each station (Chi-square test, X2 = 1418.6, P <0.05), with six sharks observed at station PR_5. Zooplankton numbers were similar at each location. Temporal analysis revealed significant differences in whale shark appearance each month (Chi-square test, X2 = 81.04, P <0.05), with March and November having the highest appearance among the three individuals. The amount of zooplankton varied (Chi-square test, X2 = 148.61, P <0.05), with the highest abundance in April and March. Whale shark appearance and zooplankton composition were not correlated (r = 0.01, P< 0.05) both geographically and temporally. Whale sharks were linked to zooplankton kinds. Results indicate whale sharks are particularly interested in Acartia sp. (r = 0.3, P < 0.05). This suggests that whale sharks' appearance is determined by their demand for food, not zooplankton availability.

Publisher

Institut Pertanian Bogor

Reference62 articles.

1. Bojanić, N., M. Šolić, N. Krstulović, S. Šestanović, I. Marasović, and Ž. Ninčević. 2005. Temporal variability in abundance and biomass of ciliates and copepods in the eutrophicated part of Kaštela Bay (Middle Adriatic Sea). Helgol. Mar. Res., 59(2): 107–120. https://doi.org./10.1007/s10152-004-0199-x

2. Boldrocchi, G., M. Omar, A. Azzola, and R. Bettinetti. 2020. The ecology of the whale shark in Djibouti. Aquat. Ecol., 54(2): 535-551. https://doi.org/10.1007/s10452-020-09758-w

3. Boldrocchi, G., Y.M. Omar, D. Rowat, and R. Bettinetti. 2018. First results on zooplankton community composition and contamination by some persistent organic pollutants in the Gulf of Tadjoura (Djibouti) science of the total environment first results on zooplankton community composition and contamination by some p. Sci. Total Environ., 627(February): 812–821. https://doi.org/10.1016/j.scitotenv.2018.01.286

4. Cade, D.E., J.J. Levenson, R. Cooper, R. de la Parra, D.H. Webb, and A.D. Dove. 2020. Whale sharks increase swimming effort while filter feeding, but appear to maintain high foraging efficiencies. Journal of Experimental Biology. 223(11): p.jeb224402. https://doi.org/10.1242/jeb.224402.

5. Cárdenas-Palomo, N., J. Herrera-Silveira, I. Velázquez-Abunader, O. Reyes, and U. Ordoñez. 2015. Distribution and feeding habitat characterization of whale sharks Rhincodon typus in a protected area in the north Caribbean Sea. J. Fish Biol., 86(2): 668–686. https://doi.org/10.1111/jfb.12589

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3