English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

<p>Identification of target strength (TS) of fish species in the South China Sea has been conducted using Furuno FQ-80 (38/120 kHz echo sounder). This study introduces new experimental method which is combination of in situ and ex situ experiment by applying net cage at undersea. This research involved Selar boops (Oxeye scad) and Megalaspis cordyla (Torpedo scad) in separate net cage at the bottom of the vessel. TS, depth, and position (x-y-z) of fish have been monitored at every ping using echogram. TS of Selar boobs at low and high frequency are -44.49 dB for source level (SL) of 236dB and -43.96 dB for SL of 228 dB. For Megalaspis cordyla, TS are -45.34 dB (SL = 230 dB) and -43.06 dB (SL = 225 dB) for low and high frequency respectively. The results show that Megalaspis cordyla produce higher TS whereas the position is deeper and smaller size than Selar boops at low and high frequency.</p

Target Strength for Fish Identification Using Echo Sounder