Philippine E-Journals

Some Aspects of Biology and Management of Nematopalemon tenuipes (Aramang)

Romeo C. Culasing

Discipline: Ecology

 

Abstract:

The study assessed the growth and reproduction parameters of aramang - length infinity (Loo), growth constant (K), maturity size, recruitment size, and peaks of spawning. These factors were considered biologically and economically on the formulation of proposed management scheme. Findings of the study were presented to the LGU of Aparri, particularly the Sanguniang Bayan, for it to integrate them into its management and conservation plan or measures to sustain exploitation at sustainable level. Samples were in total length, classified as egg bearing and non-egg bearing, and data of lengths were subjected to Fish Stock Assessment Tool (FiSAT). Results show that aramang reached a maximum length of 86 mm, size at recruitment was at 26 mm, and the smallest sample with eggs was 29 mm in length. The Von Bertalanffy Growth Constant was K=1.40 indicating that aramang is fast growing and has a short life span. Egg-bearing samples were highest in March (53.74%), September (62.00%) and October (55.00%). The non-egg bearing samples were highest in January (80.26 %) and May (56.88%) with an annual average of (53.28%). The monthly average length of the catch increased from January at 43.91 mm to October at 55.25 mm. Based on the results, a proposed management scheme was drafted for consideration by concerned agencies for alamang resource.