The emission intensity of the freshwater aquaculture production value chain in Georgia

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60460709%3A41110%2F24%3A100125" target="_blank" >RIV/60460709:41110/24:100125 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.aquaculture.2024.740844" target="_blank" >https://doi.org/10.1016/j.aquaculture.2024.740844</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aquaculture.2024.740844" target="_blank" >10.1016/j.aquaculture.2024.740844</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The emission intensity of the freshwater aquaculture production value chain in Georgia

Popis výsledku v původním jazyce

This contribution assesses the greenhouse gas (GHG) emission intensity among two freshwater aquaculture subchains: both the carp and catfish and the trout and sturgeon sub-chains in Georgia. The data were derived from 155 semi-structured interviews conducted in Georgia in 2021. The GHG per kilogram of production and per Georgian Lari (GEL) of value added of specific farm types were calculated. Emission intensity per kg of production is similar for both sub-chains, while value-added differs more significantly. Our results show the existence of economies of scale in trout production due to the ability of larger farms to use less feed per kilogram of fish. From this perspective, increasing the production scale can lead to lower emission intensity and improved economic performance. In the case of the carp sub-chain, economies of scale are not present. Therefore, we recommend conducting research on increasing the scale of production through the use of larger ponds. This solution brings obvious economic benefits, but from an environmental point of view, it may pose certain threats. Moreover, the countereffects of scaling production, such as wild fish depletion, water pollution, and the spreading of fish diseases and the farmed fish escaping, must also be adequately addressed.

Název v anglickém jazyce

The emission intensity of the freshwater aquaculture production value chain in Georgia

Popis výsledku anglicky

This contribution assesses the greenhouse gas (GHG) emission intensity among two freshwater aquaculture subchains: both the carp and catfish and the trout and sturgeon sub-chains in Georgia. The data were derived from 155 semi-structured interviews conducted in Georgia in 2021. The GHG per kilogram of production and per Georgian Lari (GEL) of value added of specific farm types were calculated. Emission intensity per kg of production is similar for both sub-chains, while value-added differs more significantly. Our results show the existence of economies of scale in trout production due to the ability of larger farms to use less feed per kilogram of fish. From this perspective, increasing the production scale can lead to lower emission intensity and improved economic performance. In the case of the carp sub-chain, economies of scale are not present. Therefore, we recommend conducting research on increasing the scale of production through the use of larger ponds. This solution brings obvious economic benefits, but from an environmental point of view, it may pose certain threats. Moreover, the countereffects of scaling production, such as wild fish depletion, water pollution, and the spreading of fish diseases and the farmed fish escaping, must also be adequately addressed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

50202 - Applied Economics, Econometrics

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Aquaculture

ISSN

0044-8486

e-ISSN

0044-8486

Svazek periodika

586

Číslo periodika v rámci svazku

MAY 30 2024

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

1-8

Kód UT WoS článku

001219344000001

EID výsledku v databázi Scopus

2-s2.0-85188047304