H Institute, Chinese Academy of Fishery Sciences, Wuhan 430223, China; LJY_IUI@163 (J.L.); [email protected] (J.W.); [email protected] (H.Z.); [email protected] (L.S.) Correspondence: [email protected] (H.D.); [email protected] (Q.W.)Citation: Li, J.; Du, H.; Wu, J.; Zhang, H.; Shen, L.; Wei, Q. Foundation and Prospects of Wild Population Reconstruction of Acipenser dabryanus. Fishes 2021, six, 55. ten.3390/fishes6040055 Academic Editor: Eric Hallerman Received: 16 September 2021 Accepted: 27 October 2021 Published: 30 OctoberAbstract: Acipenser dabryanus is definitely an endemic fish inhabiting the upper reaches of the Yangtze River in China. It really is classified as a first-class nationally protected animal in China and is listed within the International Union for Conservation of Nature (IUCN) Red List of Critically Endangered Terreic acid custom synthesis Species (CR). Lately, there has been a lower in natural reproduction of A. dabryanus, and the wild population is just about extinct. This paper summarizes the adjustments observed within the all-natural population of A. dabryanus plus the factors major to its endangerment. According to the procedure of artificial propagation and achievement of relevant protection objectives, this paper presents the concept and technical framework for reconstruction in the wild population of A. dabryanus. In addition, by comprehensively reviewing the research findings and existing challenges in the resource protection and monitoring of A. dabryanus in recent years, we assessed the possibility of wild population reconstruction and resource restoration to get a. dabryanus. Reconstruction and restoration measures for the wild population of A. dabryanus are proposed, using the aim of supplying a scientific basis for the reconstruction from the organic population and also the improvement and restoration of important habitat of this species. Additionally, it really is hoped that this paper will serve as a reference for the protection and restoration of other endangered fishes. Key phrases: Acipenser dabryanus; endangered species; protection countermeasures; wild population reconstruction1. Introduction 1.1. Biological Traits of Acipenser dabryanus Acipenser dabryanus, also referred to as Dabry’s sturgeon and Yangtze sturgeon, belongs to the class Actinopterygii, loved ones Acipenseridae [1]. Male folks sexually mature at 4 years old, although female individuals reach sexual maturity at six years old. A. dabryanus reaches physique lengths of up to 130 cm and may possibly weigh 16 kg [2]. With regards to meals habits, A. dabryanus is considered omnivorous; nonetheless, the meals kinds of juvenile and adult fish are distinct. In the juvenile stage, A. dabryanus feeds on animals, for example aquatic insects and benthic invertebrates, whereas adult fish primarily consume plants, which include stems, leaves, fragments of vascular plants, and algae [3]. Moreover, benthic compact fish are a preferred meals supply for a. dabryanus [4]. 1.2. Historical DistributionPublisher’s Note: MDPI stays neutral with regard to jurisdictional claims in published maps and institutional affiliations.Copyright: 2021 by the authors. Licensee MDPI, Basel, Switzerland. This LY393558 GPCR/G Protein article is definitely an open access short article distributed under the terms and circumstances from the Inventive Commons Attribution (CC BY) license (licenses/by/ 4.0/).Before the building of the Gezhouba Dam, A. dabryanus was widely distributed in the mainstream, tributaries, and river-connected lakes inside the middle and upper reaches on the Yangtze River. Compared with Acipenser sinensis (Chinese sturgeon), whic.