Spatial Niche Breadth and Overlap of Main Nekton Species in Autumn Near Dongtou Island

Dongrong Zhang, Dongrong Zhang, Lihong Chen, Hengtao Xu, Weihua Feng, Zhifu Wang, Ling Peng, Jian Qian

2022

Abstract

As the basic theory in community ecology, research on the niche breadth and niche overlap is of great significance to understand the position, function of various species and explain the mechanism of interspecific coexistence and competition. We found the main nekton were 5 species of fish, 5 species of shrimp and 2 species of crab in autumn in the sea area near Dongtou Island (DTI). The dominant species are mainly Harpodon nehereus, Portunus trituberculatus and Oratosquilla oratoria, in which the Harpodon nehereus and Portunus trituberculatus had the high degree of aggregation phenomenon in DTI. The niche breadth of main nekton ranged from 1.08-2.06, and the broad niche species were shrimp Solenocera crassicornis (2.06) and fish Harpodon nehereus (2.03), which is negative correlated with the index of aggregation intensity. The niche overlap index (Qik) of main nekton were 66 pairs of species, in which, 32 pairs whose overlap indices were Qik > 0.6 and 23 pairs whose overlap indices were 0.6 = Qik =0.3. The niche breadth and overlap of main nekton communities were highly positive correlated. The niche overlap may be a necessary factor for interspecific competition between the nekton species. The competition among species may also be affected by the distribution and supply of resources in the coexistence area. The habitat homogenization of nekton community should be considered in studying the niche and ecological restoration.

Paper Citation

in Harvard Style

Zhang D., Chen L., Xu H., Feng W., Wang Z., Peng L. and Qian J. (2022). Spatial Niche Breadth and Overlap of Main Nekton Species in Autumn Near Dongtou Island. In Proceedings of the 4th International Conference on Biomedical Engineering and Bioinformatics - Volume 1: ICBEB, ISBN 978-989-758-595-1, pages 1268-1272. DOI: 10.5220/0011508000003443

in Bibtex Style

@conference{icbeb22,
author={Dongrong Zhang and Lihong Chen and Hengtao Xu and Weihua Feng and Zhifu Wang and Ling Peng and Jian Qian},
title={Spatial Niche Breadth and Overlap of Main Nekton Species in Autumn Near Dongtou Island},
booktitle={Proceedings of the 4th International Conference on Biomedical Engineering and Bioinformatics - Volume 1: ICBEB,},
year={2022},
pages={1268-1272},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0011508000003443},
isbn={978-989-758-595-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 4th International Conference on Biomedical Engineering and Bioinformatics - Volume 1: ICBEB,
TI - Spatial Niche Breadth and Overlap of Main Nekton Species in Autumn Near Dongtou Island
SN - 978-989-758-595-1
AU - Zhang D.
AU - Chen L.
AU - Xu H.
AU - Feng W.
AU - Wang Z.
AU - Peng L.
AU - Qian J.
PY - 2022
SP - 1268
EP - 1272
DO - 10.5220/0011508000003443