21 Different Types of Fish (and How They Taste) - Groupon
We constructed perceptual maps of fish controlling for demographic differences.
The nutritional profile and the consumer preference of fish burgers made from carp, goldfish, perch, and tench were investigated. Perch and goldfish burgers, which have the highest proportion of eicosapentaenoic acid (6.63% and 4.90%, respectively) and docosahexaenoic acid (20.28% and 11.99%, respectively), showed lower absolute amounts of these fatty acids (17.03 and 10.10 mg/100 g food, respectively) than tench and carp (31.16 and 49.63 mg/100 g food, respectively). The consumer evaluation established that differences in the perception of the fish burgers exist. The overall liking and taste were the main attributes that influenced both consumer’s acceptance and purchase intent.
In order to assess diversity of the microbial communities, all samples were rarefied to same library size, resulting in 90 OTUs that were sorted out. Following which, three statistical models were applied. The observed OTU richness () of A. mate showed three samples with a related number of OTUs (am1, am3, am4) and one sample from Jakarta (am2) with a reduced number of OTUs, resulting in a median of 178 OTUs. For E. sexfasciatus, the median observed OTU richness was 205, distributed to three samples below (es1, es5, es6) and three samples above (es2, es3, es4) the median value. The samples of E. fuscoguttatus displayed a higher variation. Free-living samples offered the lowest median observed OTU richness with 136 OTUs, whereas deviation between the samples was very high. In contrast samples derived from mariculture showed a higher observed OTU richness with a median value of 217 OTUs. The nonparametric richness estimator Chao1, providing a statistical estimation of the true species richness of a community including unobserved species , revealed a high difference between the observed and the expected OTU richness in the samples of A. mate (200 OTUs), E. sexfasciatus (231 OTUs) and E. fuscoguttatus from mariculture (236 OTUs). Only free-living samples had a small difference between expected and observed OTUs (151 OTUs) (). This implies that an even greater diversity of bacteria lies undiscovered. The ecological diversity, measured by Shannon-Wiener diversity index, revealed high bacterial diversity in the samples of A. mate (2.5) and E. sexfasciatus (2.7). In addition, the mariculture samples from E. fuscoguttatus displayed higher bacterial diversity (2.2) than the free-living samples (1.3) (). To measure the differences between the bacterial gut community compositions a nonmetric multidimensional scaling method was used to obtain ordinations based on between-sample dissimilarities calculated by Bray-Curtis distances . The ordinations displayed two different clusters, whereas two samples (am1, es5) were outliers. One cluster was formed by A. mate and E. sexfasciatus. This implied a closer relationship of the microbial communities of A. mate and E. sexfasciatus than the communities of E. fuscoguttatus, which formed the other cluster (). Both fish species were collected from off Cilacap and inside Jakarta Bay, while E. fuscoguttatus originated from the Thousand Islands. This relationship stands in contrast to the phylogeny of the host species, whereas E. fuscoguttatus and E. sexfasciatus belonging to the same genus must be more closely related than to A. mate related at order level. Further analysis, using the statistical method adonis, confirmed the significance of these clusters with an p-value below 0.001.
Different types of Fish for Aquariums - YouTube
Different type of fish - YouTube