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

The study assessed the growth and reproduction parameters of aramang -length infinity (Loo), growth constant (K), maturity size, recruitment size, andpeaks of spawning. These factors were considered biologically and economicallyon the formulation of proposed management scheme. Findings of the studywere presented to the LGU of Aparri, particularly the Sanguniang Bayan, forit to integrate them into its management and conservation plan or measures tosustain exploitation at sustainable level. Samples were in total length, classifiedas egg bearing and non-egg bearing, and data of lengths were subjected to FishStock Assessment Tool (FiSAT). Results show that aramang reached a maximumlength of 86 mm, size at recruitment was at 26 mm, and the smallest sample witheggs was 29 mm in length. The Von Bertalanffy Growth Constant was K=1.40indicating that aramang is fast growing and has a short life span. Egg-bearingsamples 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 lengthof the catch increased from January at 43.91 mm to October at 55.25 mm. Basedon the results, a proposed management scheme was drafted for consideration byconcerned agencies for alamang resource.Keywords: Biology, management, aramang, Paleamon sp., descriptive design, Cagayan, Philippines