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TOKSISITAS TIMBAL (Pb) PADA GONAD IKAN TAMBAKAN (Helostoma temminckii) BETINA: STUDI HISTOLOGI SEBAGAI INDAKATOR KERUSAKAN REPRODUKSI

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Penilaian

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Lead (Pb) is a toxic heavy metal that can cause damage to various organs, including the ovaries of female fish, which play a vital role in the survival and sustainability of fish populations. Considering that kissing gourami fish are often found in natural waters that may be exposed to lead contamination from human activities, such as rivers and swamps, it is important to understand the impact of lead exposure on the reproductive organs of fish for the sustainability of kissing gourami populations in aquatic ecosystems. This study employed four treatments in the toxicity test using Pb(NO₃)₂ concentrations of 20 mg L⁻¹, 30 mg L⁻¹, 40 mg L⁻¹, and 50 mg L⁻¹, followed by a 30-day maintenance period to histological examination. Mortality was observed in the lead toxicity test at the highest concentration, namely 50 mg L⁻¹, which resulted in approximately 66.6% fish mortality, and the result of the LC50-96 hours is 42,3%, accompanied by behavioral observations showing abnormal behavioral changes in the test fish during exposure. Histological analysis also revealed gonad damage in all test female fish, which reduced reproductive optimality or even led to failure. Although the doses used were not lethal, sublethal effects were observed that could impair reproduction and threaten population continuity and productivity. Gonad damage in female fish due to lead exposure included vacuolization, cytoplasmic fragmentation, follicular disruption, oocyte degeneration, irregular oocyte size, atresia, and edema. Key words: kissing gourami, lead, ovarium.

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Availability

Inventory Code	Barcode	Call Number	Location	Status
2507006691	T186875	T1868752025	Central Library (Reference)	Available but not for loan - Not for Loan

Detail Information

Series Title

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Call Number

T1868752025

Publisher

Indralaya : Prodi Budidaya Perairan,Jurusan Perikanan, Fakultas Pertanian Universitas Sriwijaya., 2025

Collation

xiv, 58 hlm.; ilus.; tab.; 29 cm.

Language

Indonesia

ISBN/ISSN

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Classification

639.307

Content Type

Text

Media Type

unmediated

Carrier Type

other (computer)

Edition

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Subject(s)

budidaya perikanan
Prodi Budidaya Perairan,Jurusan Perikanan

Specific Detail Info

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Statement of Responsibility

MI

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