Determination of the surface area of common carp,Cyprinus carpioL.

Abstract

SummaryA wrap method adaptation combined with AutoCAD2005 and Scion Image for Windows were used to determine the surface area of a fish. Compared with the corresponding r 2 and F of many models, the most accurate formula: S = 752.15W 0.675 (r 2 = 0.999, F = 18362.94, P < 0.0001) for estimating the surface area of common carp was obtained. Similarly, the fin formula: S = 1834.12W 0.708 (r 2 = 0.992, F = 2690.47, P < 0.0001) was also obtained for the same purpose. It was proven that these two formulae gave good estimates of surface and fin areas of four strains of common carp: Yellow-river carp, fancy carp, mirror carp and Xingguo red carp.

Potential vector species of carp edema virus (CEV)

“…Probably, that virus DNA was first detected in gills and then in skin is explained by the relative sizes of fish skin surface area and gill area. For example, common carp of about 20 g weight have 9,220‐mm 2 gill area and 5,753‐mm 2 skin surface area (Ling et al, ; Oikawa & Itazawa, ). The constant flow of water and size of the gill area are the explanation for why after 12 hr of cohabitation CEV DNA was found only in gill samples.…”

Chronology and Cause of Mass Mortality Event on Fish in the Lower Part of Yamaima River, Mimika Regency, Papua

“…Since there had been no information on the number of fish dead, the number of fish dead was estimated by multiplying the mean of body surface area of the dead fish (BS) with the covered area of the dead fish (A) approach. The surface body area of the fish was measured by multiplying the area two individual of similar dead fish species positioning on the paper with mean length of the fish as adapted from Webb (1970) after Ling et al (2007) determining the surface area of goodeids fish by using their length. Phytoplankton in each station was collected with 1.2 l of Kemmerer water sample at the limit of tranparant depth from surface water in each sampling site.…”

Effects of the “all-fish” GH (growth hormone) transgene expression on resistance to Ichthyophthirius multifiliis infections in common carp, Cyprinus carpio L.

“…Actual area was obtained using a measure method adapted from Webb (1970) and Clayton and Price (1988) and described in full by Ling et al (2008). Additionally, these fish surface areas (estimated area) were also determined by this equation S =752.15W 0.675 .…”

“…To test whether an equation S =752.15W 0.675 (W: total weight) (Ling et al, 2008) was suitable to estimate the fish surface area, especially transgenics, three carps with a wide rage of weight were sampled from transgenic carps, non-transgenic carps and control carps, respectively. Actual area was obtained using a measure method adapted from Webb (1970) and Clayton and Price (1988) and described in full by Ling et al (2008).…”

“…If there was no significant difference between the actual value and the estimated one, this equation was used to determine the surface area of fish for experimental infection. If not, the surface area of all fish was measured as Ling et al (2008) described.…”