HSI model for early life stages of anchovy considering transport processes in Laizhou Bay
文献类型： 外文期刊
作者： Xiang, Xusheng 1 ; Zhang, Xueqing 1 ; Bian, Xiaodong 3 ; Lou, Qi 1 ; Xiong, Ying 4 ;
作者机构： 1.Ocean Univ China, Coll Environm Sci & Engn, Qingdao, Peoples R China
2.Ocean Univ China, Key Lab Marine Environm & Ecol, Minist Educ China, Qingdao, Peoples R China
3.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Qingdao, Peoples R China
4.Jiangsu Marine Fisheries Res Inst, Nantong, Peoples R China
关键词： habitat suitability index; fish early life stages; hydrodynamics; individual-based model; anchovy; coastal habitats
期刊名称：FRONTIERS IN MARINE SCIENCE （ 影响因子：5.247； 五年影响因子：5.72 ）
ISSN：
年卷期： 2022 年 9 卷
页码：
收录情况： SCI
摘要： Marine fishes are sensitive to the environment during their early life stages. This study adopts a habitat suitability index (HSI) model to evaluate the environmental suitability for early stages of anchovy (Engraulis japonicus) in Laizhou Bay. Instead of calculating the suitability of spawning grounds and nursery grounds independently or the simple average of the two, an individual-based model is used to simulate the drifting trajectories of anchovy eggs to establish the link between a spawning ground and its corresponding nursery ground. The HSI of early life habitat is determined by averaging the HSI value of the paired two grounds. The model results suggest that a small patch at eastern Laizhou Bay (near 120.1 E degrees, 37.6 N degrees) is the most critical and suitable area for anchovy in early life stages. It can provide an appropriate habitat for anchovy eggs and allow the eggs to migrate to the inside of the bay with plenty of plankton, which would benefit the newly hatching larvae. The results indicate the significant impact of hydrodynamic transport on fishery recruitment process, which should not be neglected in habitat quality evaluation. The model adopted in this study is applied to anchovy as a case study, but it is also exportable to other species of commercial interest.
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