อนุทิน 174479

ปลากรอบ แกล้มข้าวต้ม

Yesterday I had a feast of soft-boiled rice and several side dishes (accompaniments). One Item caught may interest and later concern. I learned from the label on the package that the fried dry fish were Roundbelly Sardine (Hurulla in Sinhalese) Amblygaster clupeoides a reef sardinella max size 27cm .

Later, I looked up how to estimate the Weight of a Fish. One imperial [British] system says:
- Weight of a fat-bodied fish. (bass, salmon) (length x girth x girth)/800.
- Weight of a slender fish. (trout, northern pike) (length x girth x girth)/900.
Example: If a fish is 20 inches long and has a 12–inch girth, its estimated weight is. (20 x 12 x 12)/900. 2,880/900=3.2 pounds.

I made a rough calculation (using the slender fish formula). The served fish were about 6-7 cm long, possibly weighed less than 10 g fresh. Had they been allowed to grow to full size (27 cm), each would weigh 165 g. In the market term, the fish were caught when they were 100 [fish] for 1 kilo[gram], instead of the bigger 6 to a kilo. Economically, we squander our marine resources by 94 fish/15 times.

What’s more? This Roundbelly Sardine is a reef fish. How much damage to the reef when trawling this small fish?