Etwork of each national and international Universities. Conflicts of Interest: The authors declare no conflict of interest.
Publisher’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 short article is definitely an open access article distributed under the terms and conditions of the Inventive Commons Attribution (CC BY) license (https:// creativecommons.org/licenses/by/ four.0/).Industrial demersal trawl fisheries are defined as mixed because of the high presence of co-habiting species in the catch, resulting in higher catch rates of non-target sizes and individuals, referred to as bycatch [1]. Inside a quota-regulated management system, the commercial species and sizes can also be viewed as a bycatch if the person vessel will not have quota accessible for any given species. As a result, the actual bycatch SB 271046 MedChemExpress definition BI-0115 Inhibitor depends on fishery sort and the area of fishing [2]. To mitigate catch and subsequent discard of unwanted species and sizes, ambitious management plans including the EU Frequent Fisheries Policy landing obligation have already been implemented, forcing fishers to declare all catches of listed species and count them against their quota [3]. The management plans are combined with technical regulations aiming at improving the gears size and species selectivity by way of mesh size regulations, trawl modifications and bycatch reduction devices. Regardless of these measures, catch of undesirable sizes and species nevertheless challenge these fisheries [2,4]. Indeed, such catch-quota systems as the landing obligation present an incentive and not a tool to decrease undesirable catches. In addition, available technical measures will not be capable toSustainability 2021, 13, 12362. https://doi.org/10.3390/suhttps://www.mdpi.com/journal/sustainabilitySustainability 2021, 13,2 ofprovide facts around the ongoing catch; therefore, catch composition can only be found when the fishing gear is lifted on board the vessel [5]. Recent developments in underwater imaging systems will help bring standard demersal trawl fisheries in to the digital age by enabling catch monitoring for the duration of fishing operations. Such systems are indeed crucial to overcome the challenges the demersal trawl fisheries face. The possibility to monitor the catch inside the trawl throughout fishing can deliver beneficial information and act as a choice assistance tool for fishers [6]. In-trawl camera systems are becoming introduced in pelagic fisheries [70] and demersal fisheries [6]; nonetheless, these systems have already been, so far, utilized for scientific monitoring purpose only. The created catch monitoring strategies are related with comprehensive storage and manual processing of video recordings. To grow to be an efficient selection help tool, these systems need automated processing on the data. Recently, automated processing on the information obtained by video cameras has become far more popular in a variety of industries, and fisheries are not an exception. Numerous research describe automated fish detection and classification typically performed with all the aid of deep mastering models application [115]. These studies demonstrate that the deep mastering models for objects detection and classification are effective tools for processing the on-board at the same time as underwater collected recordings of your catch. The deep mastering ability to “learn” the object functions provided the annotated information tends to make it a powerful tool for solving complicated image analysis tasks. T.
