Technical efficiency analysis of marine shrimp farming (Litopenaeus vannamei) in biofloc a

57 production cycles of Litopenaeus vannamei shrimp from northeastern Brazil were analyzed for technical efficiency using data envelopment analysis. The study by Marcelo A.S. Rego compared conventional and biofloc technology systems using inputs like population density, feed, labor, and power supply against yield. Results indicated only four cycles were technically efficient, with management inefficiency affecting the conventional system and production scale impacting the biofloc system.

Use Cases

• Compare technical efficiency scores between biofloc and conventional aquaculture systems based on the described input-output model.
• Analyze the influence of management practices on production inefficiency using the described labor and feed input data.
• Model the relationship between production scale and efficiency in biofloc systems based on the study's findings.
• Benchmark shrimp farming performance using the data envelopment analysis framework and metrics described in the abstract.

Strengths

• Analysis is based on 57 concrete production cycles (48 conventional, 9 biofloc) from specific years (2013, 2014).
• Input and output variables for the efficiency model are explicitly defined (density, feed, labor, power, yield).
• The study applies a recognized analytical method, data envelopment analysis (DEA), to assess technical efficiency.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data may reflect geographic and temporal bias inherent to a single case study in northeastern Brazil.

Provenance

Source

Marcelo A.S. Rego

Collection Method

Data envelopment analysis (DEA) of production cycle records.

Time Range

2013-2014

Geography

Northeastern Brazil