CD Skripsi

Biologi Reproduksi Ikan Julung-Julung (Hemirhamphodon Pogonognathus) Dari Perairan Umum Universitas Riau

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Hemirhamphodhon pogonognathus is a type of small pelagic fish that inhabit the pond and stream in the Riau University area. This fish is unique, as it lower jaw is longer than the upper jaw. This research aims to understand the reproductive biological aspects of this fish, especially sexuality, sex ratio, gonad development, fecundity and egg diameter. The fish was sampled three times (once/week) from February to March 2018. Total fish captured was 167 (72 males and 95 females). Sex ratio between male and female was 1 : 1.32. Males are larger than female. In males, anal fins are modified into andropodium and there is prominent genital papillae. The males sampled were in 1st and 2nd gonad maturity levels. The gonadal maturity levels in females could not be determined as the eggs present in the ovary had been fertilized and there were developing embryos inside. There were eggs with several embryo level development in the ovary (superfetation). The fecundity of these fish ranged from 1-63 eggs/fish. The eggs were divided into four groups according to embryo development. Stage I was 0.8-1.6 mm diameter, stage II was 1.3-2.2 mm diameter, stage III was 1.6-2.3 mm diameter, and stage IV was 1.6-2.4 mm diameter. The embryo development was inside the egg and this fact indicates that H. pogonognathus is ovoviviparous fish.
Keywords: ovoviviparous, andropodium, superfetation, egg development
1) Student of the Fisheries and Marine Faculty, Riau University
2) Lectures of the Fisheries and Marine Faculty, Riau University

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Ketersediaan

Informasi Detail

Judul Seri

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No. Panggil

04 01. 118 (0047)

Penerbit

Pekanbaru : Universitas Riau – Fakultas Perikanan Dan Kelautan – Manajemen Sumber Daya Perairan., 2018

Deskripsi Fisik

v, 83 hlm.; ill.; 29 cm

Bahasa

Indonesia

ISBN/ISSN

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Klasifikasi

04 01. 118 (0047)

Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

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Subjek

MANAJEMEN SUMBERDAYA PERAIRAN

Info Detail Spesifik

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Pernyataan Tanggungjawab

DAUS

Versi lain/terkait

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