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Culturing of Norway lobster (Nephrops norvegicus)_Aggression in Nephrops
The first aim of this project was to examine and gain a better understanding of the aggressive behaviour of the animals. Aggressive behaviour, causing injury or death, is thought to be a major obstacle in keeping animals in communal tanks. It was found that the Norway lobsters are able to build a dominance hierarchy, which reduces overall aggression in communal tanks. Moreover, it was found that pheromones are necessary for establishing dominance. Follow up studies will aim to gain a better understanding of the role of aggression in natural behaviour including territoriality,resource competition and mate choice. The second aim is to develop economic holding conditions for the animals. Holding animals in communal tanks is thought to be easier to manage - in terms of feeding and maintaining good water quality - than keeping them separately. Ongoing experiments comparing holding conditions indicate that there seems to be no difference in survival rate between individual and communal holding conditions. The third aim is to decide upon the best methods of collecting eggs and to hatch them. This will be researched in the next two years. Eggs will be collected by catching berried females. Holding conditions will be tested to maximize the hatching rate of the four larval stages in the lab. The results of the study will improve the understanding of the species which could help drive better stock management. In addition, it could support the fishing industry by providing sustainability and reducing the influence of natural barriers to fishing, such as weather conditions. -
Seafish Responsible Sourcing Guide - Whiting - May 2013
This Responsible Sourcing Guide to whiting contains information on sustainability issues, stock assessment, conservation measures and management worldwide for the individual stocks of this species updated to 2013. There is a short section on the product characteristics of the species. The information was obtained from scientific, industry and governmental sources and appropriate references are given. -
Barents and Norwegian Seas ecoregions; demersal stock trend 1992-2015 and ICES advice 2015
This document summarises the trajectories of the main demersal stocks exploited in the Barents and Norwegian Seas Ecoregions over the past twenty five years based on the ICES advice from 2015 and other sources. -
Seafood Processing Methodology Report (6th edition)
A report describing the methods used to collect and produce seafood processing industry performance statistics (6th Edition). -
Seafish Insight: Fishing references by country in 2019 U.S. TIP Report. August 2019.
The Trafficking in Persons (TIP) report is the U.S. Government’s principal diplomatic tool to engage foreign governments on human trafficking. This document lists the references to fishing by country in the 2019 report. -
Fishmeal and fish oil facts and figures. March 2018.
Seafish continues to support the fishmeal industry through the provision of news and factual information. These fishmeal and fish oil facts and figures draw together the latest available data on World, European and UK markets, as well as the supply of fishmeal for land animals and fish feed. -
Economics of the UK Fishing Fleet 2019
The report presents economic estimates at UK, home nation and fleet segment level for the UK fishing fleet. The estimates are calculated based on samples of fishing costs and earnings gathered by Seafish as part of the 2019 Annual Fleet Economic Survey -
Sodium Metabisulphite Alternatives
Sodium metabisulphite has been used in the UK fishing industry for many years to control the effects of melanotic blackening in prawns (Nephrops norvegicus). Recent requirements for allergen labelling and court cases resulting from high levels of sulphite residue have prompted interest to secure alternative treatments to control melanosis. Further motivation has come from the highly corrosive nature of sodium metabisulphite. This causes extensive damage to vessels and processing equipment and has serious operational health and safety issues. A number of treatments were trialled in a commercial environment to determine a viable alternative to sodium metabisulphite. Prawns were treated at sea and then assessed for shelf life and sulphite residue by processors in NE Scotland. 5 treatments were competitive with sodium metabisulphite, these include sulphite based and non sulphite based treatments. As such, vessels and factories are provided with a variety of treatment options depending on their own product requirements. Alternative sulphite based treatments exhibit reduced operational hazards and lower sulphite residues in the tail meat while selected non sulphite based treatments are classified as ‘processing aids’ and are exempt from any form of food additive labelling. -
Economics of the UK Fishing Fleet 2020
The report presents economic estimates at UK, home nation and fleet segment level for the UK fishing fleet. The estimates are calculated based on samples of fishing costs and earnings gathered by Seafish as part of the 2020 Annual Fleet Economic Survey. -
Seafood Week evaluation
Seafood Week 2015 results summary -
Product integrity: An initial review of developments, implications, and practical responses
This report focuses on the integrity of UK seafood products. It considers the major industry impacts arising from key drivers of product corruption and sets out major areas where a response from industry and Seafish may be required. -
The development of larval cod head morphology and aggression and boldness in cod
The report details experiments in 2004 and 2005 that were funded by NERC and Seafish towards a Phd project carried out at the SAMS marine laboratory in Ardtoe. The morphological development of the head in cod larvae and the effect of prey size on the development were studied as well as aggression in cod juveniles and the effects of prey density on aggression. Some of the key results from these experiments are summarized in this report. Each section of the report eventually formed a chapter of the final thesis (through the University of Glasgow).