| dc.description.abstract | This research was motivated by the absence of studies on the composition
of fish catches using gillnets in the waters of Afulu Village, Afulu District, North
Nias Regency, despite the importance of such information for sustainable fisheries
management. The research problems addressed include the composition of catches,
the proportion of the main catch (HTU), by-catch (HTS), discarded catch (HTT),
Catch Per Unit Effort (CPUE), relative abundance, and fish diversity index. The
objective of this study was to identify and analyze the catches, while its benefits are
expected to provide baseline information for fishermen and relevant stakeholders
in developing environmentally friendly fishing strategies. The study employed a
survey and documentation approach with primary and secondary data collection
over 28 days (18 fishing trips) using a gillnet with a 3.0-inch mesh size. The data
collected consisted of species composition, number of individuals, and fish weight,
which were then identified by common and scientific names. The results showed a
total of 267 individual fish belonging to 23 species and 14 families. The Main Catch
(HTU) accounted for 75.66%, By-Catch (HTS) 18.35%, and Discarded Catch
(HTT) 5.99%. The average CPUE was 2.87 kg/trip with a total catch of 51.6 kg.
Relative abundance was dominated by the Carangidae family, particularly
Carangoides chrysophrys, with a value of 43.45%. The Shannon-Wiener diversity
index (H’) was 2.53, indicating a moderate level of diversity and relatively stable
fish population conditions. | en_US |
