Relationship between eddy and scads (Decapterus spp.) abundance in the northwest of Banda Sea, Indonesia

Abstract

Abstract Eddy phenomenon is a dynamic feature of the ocean that is known to affect the distribution and abundance of marine species including pelagic fish. Eddy acts as an important physical structure in the oceanic system that affects water temperature, nutrient availability, and primary productivity, thus shaping the distribution of prey organisms and affecting the spatial pattern of Scads (Decapterus spp.) . This study aimed to examine the relationship between the abundance of scad fish and the western eddy in the Banda Sea. The data used include current speed and current patterns in March 2022, as well as logbook data on scad fish catches in the same period. The results show that there are 67 eddy events, including 31 cyclonic causes of upwelling and 36 anti-cyclonic eddy, caused downwelling events with current velocities ranging from 0.000610 -0.776512 m/s. Analysis of catch data shows that the highest catch attempt occurred on March 14, 2022, with 43 catch attempts and a total catch of 30,150 kg. Then the relationship analysis based on the eddy phenomenon showed that there was a relationship between eddy and the abundance of Scads (Decapterus spp.) characterized by the distance between the catch point and the navel of the eddy around 83.04 km with a catch production of 1,650 kg and the character indicator of the cyclonic eddy causing upwelling, in other words, upwelling affects the abundance of Scads fish.

Access to Document

Other files and links

• Link to publication in Scopus
• Open Access Version Available

Fingerprint