Abstract:
The main benefit of edible jellyfish/scyphozoan (Crambione mastigophora) fisheries in the
Saleh Bay is to increase the fishers' income. The scyphozoans blooming take place during SeptemberDecember, almost every year. The current research aimed to identify and describe the fisheries biology
and population dynamics of scyphozoans. The samples were collected during October 2017-March
2018. Data collection method was survey-dependent through the sampling technique. For data
processing, multiple applications were used. The scyphozoans fisheries’ status was estimated using the
comparative method, between the data processing results and the standard values from previous
studies. Production (i.e. fishing) of medusivorous fishes may result in increased scyphozoans blooms.
The umbrella’s diameter of 1 year old scyphozoans reached 18.15 cm. The scyphozoans natural
mortality rate was very high, whereas scyphozoan spawning did not take place every month. The peak
of scyphozoan recruitment took place in September and October. The study revealed that the status of
biomass trend was decreasing gradually. Jellyfish exploitation status was overexploited and the
utilization status showed excessive exploitation. Referring to all statuses that rely on the harvest
management and the stock security, it is recommended that decision-makers should conduct regular
assessments for the scyphozoan fisheries in order to sustain such fishing resources.
