Papers & Presentations
2015 AFS EM Symposium: Turning Fishery Information Needs into Performance Standards for an Electronic Monitoring Program
Abstract: Several U.S. commercial fisheries are considering implementing electronic monitoring (EM) systems as an alternative to human observers for at-sea catch and compliance monitoring. Fishery managers, scientists, fishermen, and other partners are in the throes of developing program designs, performance standards, and technical specifications that would meet their objectives, as well as legal requirements of the Magnuson-Stevens Act and other statutes. They are looking to the NMFS for guidance on what specific requirements and minimum standards must be met. In some cases, NMFS is breaking new ground in application of some Federal statutes to EM systems, which have only been implemented on a limited scale in U.S. fisheries. This talk will address the following questions, drawing on examples… Read More »
2015 AFS EM Symposium: Evaluating the Effectiveness of Dockside Monitoring Using an Electronic Monitoring System in the Maryland Blue Crab Fishery
Self-reporting is a common method to document harvest, but the accuracy of reported harvest is uncertain without independent methods of harvest verification. General documentation errors, forgetfulness and intentional misreporting are common problems and can profoundly impact the accuracy of reported harvest. As mobile accessible electronic reporting systems become more prevalent they have the potential to improve the timeliness and accuracy of self-reported harvest. However sources of misreporting and incentives to misreport will continue unless techniques are in place to evaluate reporting accuracy and report compliance. Independent verification techniques such as at-sea observers, dockside monitoring and dealer reporting can be implemented to establish crosschecking and auditing of selfreported data and to increase incentives for industry to provide accurate… Read More »
Electronic monitoring has been shown to be an effective tool to meet a variety of fisheries monitoring objectives in compliance-based programs. However, these systems have not been effective in delivering individual fish data similar to information collected by an observer.
Development of new camera-based systems, methods, and tools is critical for collecting scientific data to inform management. A camera system being developed at the Alaska Fisheries Science Center greatly improves the functionality and addresses many of the limitations of electronic monitoring systems. This system provides the ability to automatically collect length measurements in addition to monitoring for compliance. System capacity to identify and automatically capture high quality (HD) stereo images of catch events, for efficient identification of… Read More »
The goal of the New England Electronic Monitoring (EM) Project was to investigate the potential for using EM within the broader Northeast Multispecies Fishery (NE groundfish fishery) catch monitoring program. EM systems are designed for the automated collection of fisheries data while vessels are at sea. They collect high-frequency sensor data and closed-circuit television (CCTV) imagery during fishing or related activities which are then reviewed post-trip to provide data needed for fisheries management, compliance, and/or science.
Phases I and II of the project were completed and documented in 2010-2013 (Pria et. al., 2011, 2012) and laid the initial groundwork for understanding how EM could best be applied in the monitoring needs of the NE groundfish fishery. These results… Read More »
Preliminary Study About the Suitability of an Electronic Monitoring System to Record Scientific and Other Information from the Tropical Tuna Purse Seine Fishehry
This paper was published in 2015, authored by J.P. Monteagudo.
Electronic monitoring systems (EMS) are used in some fisheries to collect the same types of scientific information that human observers can collect, and in some cases for compliance with existing regulations. An EMS system was tested previously onboard a tropical tuna purse seiner in the Atlantic Ocean and it showed that the system could perform very well in many tasks. Since then, 17 purse seine vessels operating in the 4 RFMO’s, have been equipped with a different EMS that has been developed recently by SATLINK (SeaTube). In this paper, we present preliminary analyses comparing information collected by human observers from the IEO and… Read More »
This paper is available from ScienceDirect here . It was published in February, 2014.
Mitigating the environmental impact of commercial fishing, by avoiding, minimizing and compensating for adverse effects, is core business for fisheries management authorities globally. The complex interplay of ecological, economic, and social considerations has often resulted in bycatch management being reactive, confrontational and costly. In many cases it has been difficult to demonstrate success and to establish whether bycatch management has been efficient or effective. This article proposes standards for bycatch management following reviews of literature, international agreements and Australian domestic fishery management policies, and consideration by many technical experts and several stakeholder representatives. The standards have been developed using Australian Commonwealth fisheries – and the international… Read More »
The Use of Electronic Reporting for Regional Purse Seine Log Book and Regional Observer Work Book Data
Following on the success of the electronic forms (eForms) for Port Sampling which use an Android tablet application (App) for improved quality and timeliness of data collection, the Papua New Guinea National Fisheries Authority has developed eForms for purse seine vessels’ e-reporting of Regional Purse Seine Logbook and Observer Work Book data.
Related information can be found on the WCPFC website here .
Us. National Observer Program and Regional Electronic Technology Implementation Plans 2016-2018 (Powerpoint-October 29, 2015)
Presented at NOAA Fisheries Council Member Training, Silver Spring, MD, on October 29, 2015.
Abstract: We present a computer vision tool that analyses video from a CCTV system installed on fishing trawlers to monitor discarded fish catch. The system aims to support expert observers who review the footage and verify numbers, species and sizes of discarded fish. The operational environment presents a significant challenge for these tasks. Fish are processed below deck under fluorescent lights, they are randomly oriented and there are multiple occlusions. The scene is unstructured and complicated by the presence of fishermen processing the catch. We describe an approach to segmenting the scene and counting fish that exploits the N4-Fields algorithm. We performed extensive tests of the algorithm on a data set comprising 443 frames from 6 belts. Results… Read More »