English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Fry of rainbow trout,    Oncorhynchus   mykiss    (Walbaum, 1792), was subjected to one-hour and four hours immersion in Alizarin red S ( ARS ) bath 150 mg · L –1 . The experiment involved seven age groups (40, 50, 60, 70, 80, 90, and 100 days) and was conducted to estimate the minimal age of salmonids for mass marking with  ARS  bath enabling subsequent effective, simple field nonlethal identification, based on fin rays checking. The fish were examined at the ages of 200 and 300 days. The results showed a high retention level of  ARS  traces in caudal fin rays ensured satisfactory visibility and quick detection. A success rate of marking detection was &gt;90% at 200 and 300 days of age and the fish were immersed in  ARS  solution from 60 days of age (685°D). This treatment provided better results in fish bathed for four hours. Recognition of marks using a laser pointer and protective glasses was successful even in fish, with a 3.5–5.0 times length increase compared to the marking time. The results indicate a high potential for  ARS  marking and its field identification for juvenile salmonids, which can significantly expand the possibilities of field experiments.

﻿Evaluation of large-scale marking with alizarin red S in different age rainbow trout fry for nonlethal field identification

Evaluation of large-scale marking with alizarin red S in different age rainbow trout fry for nonlethal field identification