The Study of Environmental Parameters and Their Effect on Squid (Loligo sp) In Waters of Padang City

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D P Wulandari, E Kamal

Abstract

The squid is one of the fishery resources which has a large economic value in the City of Padang.The fishing season and conditions of the water environment effect of squid capture activity. The fishing activity of squid on a large scale can disturb the water environment and reduced squid stocks in the Waters of Padang City. In this study the quantitative ande descriptive method was used. Ecology factor such as temperature, salinity, weather, and current influences growth pattern of the squid. The peak season for catching squid occurs in the second intern monsoon (September, October, November) with an average temperature value (280C - 300C). Squids have the ability to adapt to low and high salinity. The range of salinity values ​​for squid caught in coastal waters is between (29-31o/oo), coastal areas (32-34o/oo), and salinity for the open sea is (33-37o/oo) Water environmental conditions that have high temperatures affect the spawning process of squid besides the weather, and relatively supportive sea wave conditions also affect the catch of squid. Based on the CPUE which has been analyzed from the years (2008-2017) squid has decreased every year.

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