Skipjack tuna landings and ex-vessel prices at Tumumpa Port, North Sulawesi (2024-2025)

Skipjack tuna landings and ex-vessel prices at Tumumpa Coastal Fishing Port, North Sulawesi, Indonesia (January 2024–December 2025) [Data set].

Mendeley Data. doi.org/10.17632/vpnv9xz6k3.1 VARIABLES: - year: Calendar year (2024 or 2025) - month: Month name (January–December) - month_numeric: Month number (1–12) for time-series analysis - fishing_effort_trips: Number of purse seine vessel trips landing at port - landed_volume_kg: Total skipjack catch weight in kilograms - transaction_value_idr: Aggregate ex-vessel revenue in Indonesian Rupiah (IDR) - ex_vessel_price_idr_per_kg: Derived unit price (transaction_value_idr / landed_volume_kg) - notes: Data quality flags (e.g., "species_composition_shift" for June 2024 outlier) DATA QUALITY: - Species filtering: Only Katsuwonus pelamis included; mixed-species landings excluded - Outlier validation: June 2024 price spike (IDR 45,823/kg) validated via Sailing Declarations (SPB) as a temporary shift to high-value species; retained in dataset but flagged for analysis exclusion - Anonymization: All vessel-level identifiers removed per Indonesian Ministry of Marine Affairs Regulation No. 12/2021 ETHICAL COMPLIANCE: - Data extracted under research permit No. [Nomor Izin] from North Sulawesi Marine and Fisheries Office - Raw vessel-level data restricted due to confidentiality regulations; only aggregated port-level data shared - Dataset supports reproducibility of findings reported in: "[Manuscript Title]", Fisheries Research (forthcoming) CONTACT: Victoria Manoppo [Universitas Sam Ratulangi] victoria.nicoline@unsrat.ac.id