Survival and growth of bighead carp fry exposed to low salinities
![Thumbnail](https://repository.seafdec.org.ph/bitstream/10862/1001/4/1001-GarciaLMB1999.pdf.jpg)
រកមើល / បើក Open
Request this document
កាលបរិច្ឆេទ
1999អ្នកនិពន្ធ
Page views
155ទិន្នន័យមេតា
មើលកំណត់ត្រាលម្អិតនៃធាតុCited times in Scopus
Share
អរូបី
Bighead carp (Aristichthys nobilis Oshima) fry of various ages (11, 18, and 35 days post-hatch) were exposed to the low salinities encountered during the annual intrusion of seawater in Laguna Lake, Philippines. Practical indices of salinity tolerance assessed the effect of a 96 h direct exposure to low salinities (0–16‰). Mean (MST) and median survival times (MST50) of fry decreased as salinity of rearing medium increased. Younger fry were less able to tolerate exposure to these salinities than their older cohorts. Median lethal salinity after 96 h (MLS) revealed higher tolerance among 35–day old fry (7.6‰) than 11 (2.3‰) and 18–day old fry (6.0‰), demonstrating that survival in saline water depends on their age at initial exposure to low salinities. Mean body weight of 18–day old fry reared in 0 and 2‰ for 3 and 4 weeks was higher than for those reared in 4 and 6‰ for the same period. Growth over these periods was inversely related with the range of salinities tested. These results demonstrate that, despite their known stenohalinity, bighead carp fry possess some degree of osmoregulatory capability, allowing them to survive and grow in lakes subjected periodically to saltwater inflow.
Suggested Citation
Garcia, L. M., Garcia, C. M. H., Pineda, A. F. S., Gammad, E. A., Canta, J., Simon, S. P. D., Hilomen-Garcia, G. V., Gonzal, A. C., & Santiago, C. B. (1999). Survival and growth of bighead carp fry exposed to low salinities. Aquaculture International , 7(4), 241-250. https://doi.org/10.1023/A:1009277012959
ប្រធានបទ
Taxonomic term
បណ្តុំបណ្តុំ
- AQD Journal Articles [1222]
Related items
Showing items related by title, author, creator and subject.
-
Tolerance of seahorse Hippocampus kuda (Bleeker) juveniles to various salinities
Hilomen-Garcia, G. V.; Delos Reyes, R.; Garcia, C. M. H. (Blackwell Publishing, 2003)In line with current conservation efforts, some success in the captive breeding of the seahorse Hippocampus kuda (Teleostei: Syngnathidae) has been achieved. To evaluate the salinity tolerance of these hatchery-bred ... -
Growth and production of deformed and nondeformed hatchery-bred milkfish (Chanos chanos) in brackishwater ponds
Sumagaysay, N. S.; Hilomen-Garcia, G. V.; Garcia, LM (Society of Israeli Aquaculture and Marine Biotechnology, 1999)This study evaluated the growth and survival of morphologically deformed and nondeformed hatchery-bred milkfish in brackishwater ponds. It compared the size-frequency distribution of the nondeformed fish with the deformed ... -
Critical factors influencing survival and hatching of milkfish (Chanos chanos Forsskal) eggs during simulated transport
Garcia, LM; Toledo, Joebert D. (Elsevier, 1988)The effects of loading density, length of transit time, temperature and salinity on milkfish (Chanos chanos Forsskal) eggs during simulated transport were examined. Rocking motion approximating conditions of transport of ...