home    about    browse    search    latest    help 
Login | Create Account

Fertilisers from aquaculture and other marine waste

Løes, Anne-Kristin (2023) Fertilisers from aquaculture and other marine waste. In: ESPP (European Sustainable Phosphorus Platform) Scope newsletter 149, ESPP. [Completed]

[thumbnail of AKL IFOAM_ESPP webinar 18_09_2023.pdf] PDF - English
[thumbnail of ESPP ScopeNewsletter149.pdf] PDF - English

Document available online at: https://phosphorusplatform.eu/images/scope/ScopeNewsletter149.pdf


Seafood processing generates significant volumes of residues
including bones, heads and other non-consumable fish parts, rich in nitrogen, phosphorus and calcium. Some
residues are recycled to aquaculture or animal feed, but around 4 000 tP/y in Norway are currently not valorised.
Nitrogen, potassium and magnesium can be extracted from
brown seaweed (harvested or cultivated), and combined with
processed seafood by-products to produce a nutrient-balanced
recycled fertiliser, which has shown positive results in
agronomic trials. These marine sources represent significant potential for nutrient recycling in coastal countries. Certain seafood processing byproducts are specifically authorised for use as fertilisers in the EU Organic Farming Regulations: fish meal – without limitations, mollusc waste and shellfish chitin from organic aquaculture or sustainable fisheries only, seaweed and seaweed processing by-products with some restrictions.

EPrint Type:Conference paper, poster, etc.
Type of presentation:Speech
Keywords:marine materials; residual materials, seaweed, fish; MariGreen
Agrovoc keywords:
fish wastes
seaweed products
Subjects: Crop husbandry > Composting and manuring
Food systems > Recycling, balancing and resource management
Farming Systems > Farm nutrient management
Research affiliation: Norway > NORSØK - Norwegian Centre for Organic Agriculture
Deposited By: Løes, Anne-Kristin
ID Code:52189
Deposited On:18 Dec 2023 20:07
Last Modified:18 Dec 2023 20:07
Document Language:English
Refereed:Not peer-reviewed

Repository Staff Only: item control page


Downloads per month over past year

View more statistics