Papers & Presentations

Convolutional Neural Networks for Counting Fish in Fisheries Surveillance Video

Convolutional Neural Networks for Counting Fish in Fisheries Surveillance Video_French, et al.

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 »

2015 AFS Symposium on Implementing Electronic Monitoring and Reporting in U.S. Fisheries (Papers & Presentations)

This symposium took place August 20, 2015 at the annual meeting of the American Fisheries Society, in Portland, Oregon. We’d like to acknowledge and thank the members of the Steering Committee that made this symposium a success. They are: Eric Brazer (Gulf Reef Fish Shareholders Alliance); Kelly Denit (NMFS); Erika Feller (The Nature Conservancy); Melissa Hooper (NMFS); George LaPointe (Consultant); Dorothy Lowman (Consultant).

Please review this EM Symposium Handout , which provides an overview of the event, a list of presentations, panel discussions and speakers, and abstracts of the presentations below.

This symposium was organized into three primary subject areas and the presentations below are organized accordingly. They are Data Management & Integration; Standards; and Process for Implementation.

For information regarding this symposium,… Read More »

Covering All the Bases: Ensuring that Data Management Systems Meet User Needs

Michelle McClure FRAM Division, NW Fisheries Science Center, NOAA Fisheries and the IDEO Corporation with funding from the Moore Foundation

In Catch Shares and many other Fisheries Management Programs, timely and accurate data underlie many individual fishermen’s and management decisions, as well as scientific analysis of the consequences of those decisions.  The FRAM Division (NWFSC) maintains both fishery dependent and fishery-independent data for the West Coast Groundfish Fishery and is working to make these data as useful and as timely as possible.  We joined forces with the IDEO Corporation to evaluate user needs and ways to improve data management and delivery.  We identified four areas for short and long-term changes:  1) expedite delivery of observer data; 2) automate a system… Read More »