The Human Impacts Database

A collection of useful numbers for quantifying the impacts of the human presence on Earth.

Annual cultured Manila clam mass

This quantity comes from a time series measurement and the most recent value (2018) is reported.


Value:		≈ 4.14 × 10⁹ kg / yr see this value in other units This is equivalent to... ≈ 4.14 Mt / yr
HuID:		97536
Relevant Year(s):		2018
Summary:		Manila clam, also known as Japanese carpet shell or Japanese cockle, is the most cultured mollusk species in the planet. In 2018, it accounted for more than 23 % of all cultured mollusk mass. Originally from southeastern Asia, it has been introduced for commercial purposes in the Mediterranean, the coast of Brittany, France, the Hawaiian Islands and along the Pacific coast of northern America. The mass of an individual Manila clam is in the 15-30 g range (Saurel et al., 2014), such that a mass of ≈ 4.14 Mt / yr corresponds to the culture of 140 - 270 billion clams per year.
Method:		The volume and value data in Global aquaculture production are primarily official statistics obtained by FAO's Statistics and Information Service (FIPS) directly from nations. Data reported by countries may have been supplemented by verifiable information from other sources, including academic reviews, consultants reports and other specialist literature. Because errors can occur in data reporting, data are checked when they are received by FAO for both consistency and for outlying values. Collection Method: Customized national questionnaire on aquaculture production (FISHSTAT AQ and FISHSTAT NS AQ) sent annually by FAO/FIPS. Processing Method: When value data (based on farm gate prices) have not been supplied by countries (i.e. China), standardized indicative figures have been used. When national offices fail to report their annual aquaculture statistics, FAO, in the absence of other verifiable information, repeats or estimates the data previously reported by the country.
Source:		FAO (Food and Agriculture Organization of the United Nations) Fisheries Commodities Production and Trade 1976-2018. (2020)
Dataset:		Total animal seafood mass by species (FAO_FishStatJ_total_mass_species.csv) global resolution
Trend:
Original Data License:		CC-BY-NC-SA IGO 3.0 (FAO Modified)
Added By:		ilopezgo