Pristolepis fasciata
Bleeker,1851. Perciformes; Nanidae, Pristolepidinae.
Demersal; patamodromus; freshwater; pH range 7,0-?; dH range 10-?
Climate tropical; 23° C – 28° C
Description. D XIII-XVI/14-16; A III/8-9; P 15; V I/5; C 14; l.lat.21-24+7-8, l.tr.5/1/11, branchiostegal rays 6, pyloric caeca 2, vertebral formula 13+12=25. Body thick-set very deep compressed. Mouth small, narrow slightly protusible, upper jaw reaching as far as anterior edge of eye. Teeth villiform on jaws and palatines, globular on vomer. Gill membranes broadly united. Gill cover with two flattened spines. Scales ctenoid. Lateral line interrupted under the soft ray dorsal fin and displaced further ventrally. Dorsal spines strong, second anal spine strongest but not so long as third. Tail fin rounded. Colour; in life greenish or brownish-yellow, with a deep black spot on shoulder and anothoner over upper part of pectoral fin base; 8-12 rather regular dark transverse bands, which are especially prominent in the yung. Upper side darker, belly pale, usually yellowish. Pectoral fins yellowish other fins greenish. Several dark longitiudonal lines beneath the eye, extending from the mouth to the gill-cover. Total lenght 20 cm (male), weight over 0,5 kg.
Distributions. Asia: Mekong and Chao Phraya basins, Malay Peninsula, Sumatra and Borneo. Reported from the Maeklong River. It prefers areas of aquatic vegetation or submerged tree limbs, and is more common in pernament lakes than in rivers. Kottelat(1996) records the species from the lower and middle Xe Bang Fai. It is occasionally recorded from deep pools during the dry season in the Mekong mainstream.
Migration/Spawning. This species undertakes short lateral migrations (and not longitudinal migrations). It moves from the main river to smaller stream and floodplains of the beginning of the wet season, and returns at the beginning of the dry season. It breeds mainly during the beginning of the wet season.
Habitat/ Biology: Found in sluggish or standing waters, including reservoirs, from Burma to Indonesia. Frequently seen in areas with a lot of aquatic vegetation or submerged tree limbs. Feeds on filamentous algae, submerged land plants, fruits, and seeds with some aquatic insects and crustaceans. They are sexually mature in first year and reach 7-8 cm. Longevity 4,4 years. The study on some biological aspects of Striped Tiger Nandid (Pristolepis fasciata) was conducted during May 2003 to April 2004 by sampling fish from Kwan Phayao (Phayao Lake), Phayao Province (Thailand). Total number of 724 fish specimens, was compose of 456 male and 268 female. The average sample sizes of male was 10.21±1.82 cm in total length and 23.59±11.49g of body weight, and the average sample sizes of female was 11.34±2.93cm in total length and 39.39±29.93g of body weight. The sex ratio was 1:0.59. The results showed that body shape of Pristolepis fasciata was compress body, short and deep, yellow with brown or black colour with about 8-12 blackish vertical on the middle body, 1-2 spine on opercular, a small and only slightly protractile mouth. Normally, these species were found in aquatic plant area. In the spawning season, the fish would be built for foam nets spawning egg. The ratio between intestine length and body length was 1:0.51. In the stomach content was found 60.74% of shrimp, 11.29% insects larvae, 2.41 % of fish and other 25.56 % . The study of spawning season from gonad development indicated that the spawning period of this species started from February to August. The characteristics of egg were spherical, yellow in colour and floating type. The average fecundity was 39,562±33,531 eggs from the average spawner sizes of 14.05±2.16 cm and 71.53±38.01g The relationship between fecundity and weight (R2 =0.9111) was higher related than the relationship between fecundity and total length (R2 = 0.8778). The growth parameters were 0.94 per year of growth constant (K), 21.0cm of the maximum theoretical length, 3.65 per year for total mortality (Z) and 1.76 per year for fishing mortality (F), the level of exploitation rate (E) was 0.48.
Aquarium. Little is known of the behaviour of this species in captivity. Probably the are territorial fishes and liable to be quarrelsome among themselves. The male usually gathers the eggs places then in the nest and guards them until they reach the free-swimming stage. Live food of all kinds.
Links:
http://www.archive.org/stream/fishes02dayfiala#page/84/mode/2up/search/pristolepis
http://www.arcbc.org.ph/wetlands/thailand/tha_kwapha.htm
http://www.vncreatures.net/chitiet.php?page=1&loai=1&ID=5686
http://www.archive.org/stream/cu31924084820632#page/n157/mode/2up
http://www.adb.org/Documents/Reports/Consultant/CAM/37576/37576-CAM-TACR.pdf