The effect of different pH and photoperiod regimens on the survival rate and developmental period of the larvae of Portunus pelagicus (Decapoda, Brachyura, Portunidae)
Crustacean larval development occurs within a narrow range of environmental parameters (Sastry, 1983). Among the abiotic characteristics that influence the developmental period and survival rate of the larvae, pH and photoperiod are of great importance. High and low levels of pH are known to adverse...
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ftoceandocs:oai:aquadocs.org:1834/11632 2023-05-15T17:54:37+02:00 The effect of different pH and photoperiod regimens on the survival rate and developmental period of the larvae of Portunus pelagicus (Decapoda, Brachyura, Portunidae) Ravi, R. Manisseri, M. K. India 2013 pp.490-499 http://hdl.handle.net/1834/11632 en eng 1562-2916 http://hdl.handle.net/1834/11632 Aquaculture Decapoda Brachyura Portunidae Crangon crangon Paralithodes camtschaticus Jasus edwardsii Panulirus japonicus Pseudocarcinus gigas Portunus pelagicus Photoperiod Larval rearing Larval development Larval survival Journal Contribution Refereed 2013 ftoceandocs 2023-04-06T16:59:23Z Crustacean larval development occurs within a narrow range of environmental parameters (Sastry, 1983). Among the abiotic characteristics that influence the developmental period and survival rate of the larvae, pH and photoperiod are of great importance. High and low levels of pH are known to adversely affect the physiology of the animals due to the increased amounts of ammonia and nitrite (Oanh et al., 2000). High values and sudden fluctuations in pH are found to cause disease outbreaks (Cheng and Chen, 1998) and stress (Oanh et al., 2000), respectively in crustacean larvae. A pH around 8.5 was found to be the optimum for larval rearing of the mud crab Scylla paramamosain (Nghia et al., 2007). Another important parameter that decides the survival and developmental period of crustacean larvae is the period of exposure to light or darkness. Other aspects of behaviour and physiology that are influenced by lighting includes entrainment of physiological processes to circadian cycles (Dalley, 1980), endocrine control of metamorphosis (Eagles et al., 1986), initiation of ecdysis (Waddy and Aiken, 1991), cannibalism (Hecht and Pienaar, 1993) and swimming activity and hence metabolism (Gardner, 1996). Published Book Paralithodes camtschaticus IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications Gardner ENVELOPE(65.903,65.903,-70.411,-70.411) |
institution |
Open Polar |
collection |
IODE-UNESCO: OceanDocs - E-Repository of Ocean Publications |
op_collection_id |
ftoceandocs |
language |
English |
topic |
Aquaculture Decapoda Brachyura Portunidae Crangon crangon Paralithodes camtschaticus Jasus edwardsii Panulirus japonicus Pseudocarcinus gigas Portunus pelagicus Photoperiod Larval rearing Larval development Larval survival |
spellingShingle |
Aquaculture Decapoda Brachyura Portunidae Crangon crangon Paralithodes camtschaticus Jasus edwardsii Panulirus japonicus Pseudocarcinus gigas Portunus pelagicus Photoperiod Larval rearing Larval development Larval survival Ravi, R. Manisseri, M. K. The effect of different pH and photoperiod regimens on the survival rate and developmental period of the larvae of Portunus pelagicus (Decapoda, Brachyura, Portunidae) |
topic_facet |
Aquaculture Decapoda Brachyura Portunidae Crangon crangon Paralithodes camtschaticus Jasus edwardsii Panulirus japonicus Pseudocarcinus gigas Portunus pelagicus Photoperiod Larval rearing Larval development Larval survival |
description |
Crustacean larval development occurs within a narrow range of environmental parameters (Sastry, 1983). Among the abiotic characteristics that influence the developmental period and survival rate of the larvae, pH and photoperiod are of great importance. High and low levels of pH are known to adversely affect the physiology of the animals due to the increased amounts of ammonia and nitrite (Oanh et al., 2000). High values and sudden fluctuations in pH are found to cause disease outbreaks (Cheng and Chen, 1998) and stress (Oanh et al., 2000), respectively in crustacean larvae. A pH around 8.5 was found to be the optimum for larval rearing of the mud crab Scylla paramamosain (Nghia et al., 2007). Another important parameter that decides the survival and developmental period of crustacean larvae is the period of exposure to light or darkness. Other aspects of behaviour and physiology that are influenced by lighting includes entrainment of physiological processes to circadian cycles (Dalley, 1980), endocrine control of metamorphosis (Eagles et al., 1986), initiation of ecdysis (Waddy and Aiken, 1991), cannibalism (Hecht and Pienaar, 1993) and swimming activity and hence metabolism (Gardner, 1996). Published |
format |
Book |
author |
Ravi, R. Manisseri, M. K. |
author_facet |
Ravi, R. Manisseri, M. K. |
author_sort |
Ravi, R. |
title |
The effect of different pH and photoperiod regimens on the survival rate and developmental period of the larvae of Portunus pelagicus (Decapoda, Brachyura, Portunidae) |
title_short |
The effect of different pH and photoperiod regimens on the survival rate and developmental period of the larvae of Portunus pelagicus (Decapoda, Brachyura, Portunidae) |
title_full |
The effect of different pH and photoperiod regimens on the survival rate and developmental period of the larvae of Portunus pelagicus (Decapoda, Brachyura, Portunidae) |
title_fullStr |
The effect of different pH and photoperiod regimens on the survival rate and developmental period of the larvae of Portunus pelagicus (Decapoda, Brachyura, Portunidae) |
title_full_unstemmed |
The effect of different pH and photoperiod regimens on the survival rate and developmental period of the larvae of Portunus pelagicus (Decapoda, Brachyura, Portunidae) |
title_sort |
effect of different ph and photoperiod regimens on the survival rate and developmental period of the larvae of portunus pelagicus (decapoda, brachyura, portunidae) |
publishDate |
2013 |
url |
http://hdl.handle.net/1834/11632 |
op_coverage |
India |
long_lat |
ENVELOPE(65.903,65.903,-70.411,-70.411) |
geographic |
Gardner |
geographic_facet |
Gardner |
genre |
Paralithodes camtschaticus |
genre_facet |
Paralithodes camtschaticus |
op_relation |
1562-2916 http://hdl.handle.net/1834/11632 |
_version_ |
1766162419426525184 |