Dwi Anggorowati Rahayu
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Morphological Study for Identification Improvement of Poeciliidae Family Based on Gonopodium structures and Morphometric analysis Dwi Anggorowati Rahayu; Dwi Listyorini; Ibrohim Ibrohim
Journal of Tropical Life Science Vol. 3 No. 2 (2013)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.3.2.%x

Abstract

Poeciliidae family consists of small live-bearer fishes with sexual dimorphic. This fishes are widely distributed across Indonesian archipelago, but biological studies on this fish are very limited. This research is aimed to identify the species of Peciliidae fishes which lives in Sari Lake Pasuruan based on gonopodium structures and morphometric analysis. A specific characteristic of the Poeciliidae family is its gonopodium structures which is a modification of 3rd, 4th, and 5th rays of the males anal fin. Each species represented 50 samples male and female from each type we found and measured 26 characters (in mm). Cladogram based on morphometric measurements showed that sample 1 and 2 had 100% similarity, sample 3 had 94% similarity with sample 1 and 2. Sample 4 had 54% similarity with sample 1, 2, and 3. Based on gonopodium structures sample 1 and sample 2 included Xiphophorus hellerii Heckel possess large claw on the terminus of ray 5 hook is small crescent-moon shaped on 3rd ray and lacking of gonopodium palp, sample 3 possesses distal platform with 11 retrosse serrae,and membranous hook so we were able to identify the sample 3 as Poecilia mexicana Steindachner, whilst sample 4 was Poecilia reticulata Peter had a long-pointed comb-like spines on ray 3rd and and has a small hook on the tip of 5p ray.
Morphometric Analysis of Local Fish from Banyu Biru Lake, Pasuruan Compared with Closely Related to Tor spp. from Indonesia Dwi Anggorowati Rahayu; Endik Deni Nugroho; Rodliyati Azrianingzih; Nia Kurniawan; Haryono Haryono
Journal of Tropical Life Science Vol. 3 No. 3 (2013)
Publisher : Journal of Tropical Life Science

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Abstract

Banyu Biru is a natural lake in Sumber Rejo Village, Winongan District, Pasuruan Regency. There are local fishes in the Banyu Biru called sengkaring and tambra. Biological studies on these fishes are not so much known. This study aims to identify the relationship of sengkaring and tambra compared with the related species ( Tor spp.: Cyprinidae) from Indonesia. Morphometric analysis can be used to clustering and understanding the relationship of taxa. Each species represents 17 specimens (Tambra and Sengkaring) and measured 22 characters (in mm) by using digital caliper and the additional characters (21 characters). The canonical, clustering, similarity and distances were used. Based on morphometric measurements, sengkaring and tambra had similarity with the four species found in Indonesia. Commonly, the population of Sengkaring and Tambra was critical; therefore, studies needed to be carried out to support conservation.