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Record W2913207454 · doi:10.20473/jipk.v2i2.11643

Kemampuan Reproduksi Daphnia magna Jantan Hasil Induksi Logam Berat (Cd, Pb) Dan Pestisida Diazinon <br><i>[Reproductive Ability Of Male Daphnia magna Induction Results Of Heavy Metal (Cd, Pb) And Pesticide Diazinon]<i>

2010· article· en· W2913207454 on OpenAlexfundno aff
Ahmad Shofy Mubarak, Desi Nawang Purnamasari, Laksmi Sulmartiwi, Sudarno Sudarno

Bibliographic record

VenueJurnal Ilmiah Perikanan dan Kelautan · 2010
Typearticle
Languageen
FieldAgricultural and Biological Sciences
TopicAquatic life and conservation
Canadian institutionsnot available
FundersUniversitas AirlanggaMemorial University of NewfoundlandNorth Carolina State University
KeywordsDaphnia magnaBiologyDiazinonDaphniaMatingCladoceraParthenogenesisZoologyReproductionToxicologyAnimal scienceCadmiumCrustaceanEcologyPesticideFisheryToxicityChemistryEmbryo

Abstract

fetched live from OpenAlex

Abstract Daphnia magna is one of the natural food which is used widely in fish hatchery. Generally, Daphnia magna is used widely in larval rearing of fish that are traded in the form of resting eggs called ephipia. Ephipia production can be performed with Daphnia magna culture in conditions that are not optimal, one of which is pollution. If the conditions are not optimal then the parthenogenesis Daphnia magna would produced a male individual. The presence of Daphnia magna males will initiate sexual reproduction, where Daphnia magna males will perform on the female and copulation produce ephipia. Ephipia production is influenced by the efficiency of matting, reproduction ephipia will improve if a high mating eficiency of Daphnia magna. Mating eficiency describes the number of females that successflly fertilized by the male.The purpose of this study is to determine the reproductive capacity of Daphnia magna male’s induction of heavy metals (Cd, Pb) and the Pesticide Diazinon on mating efficiency and quality ephipia produced. The research method used is an experimental method by using completely randomized design with 4 treatments and 5 replications so that was followed by Duncan Multiple Range Test. This study uses the ratio of male to female sex 1:30 for each treatment. The treatments in this study consist of control males mated with females, male induced lead (Pb) were mated with female, males induced cadmium (Cd) were mated with females, the male mated with the induction of pesticide Diazinon female. Results showed that treatments using natural male produced an average value of mates which were the highest efficiency and quality ephipia optimal, with precentage of 88,66 and 88,71. So that in order to produce ephipia in large quantities and quality needed natural male culture can be done in the unpolluted waters.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.002
metaresearch head score (Gemma)0.002
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.834
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0020.002
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.001
Science and technology studies0.0010.001
Scholarly communication0.0000.001
Open science0.0010.000
Research integrity0.0010.001
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.019
GPT teacher head0.233
Teacher spread0.213 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one teacher head, not a consensus.

Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2010
Admission routes1
Has abstractyes

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