Contributions for larval development optimization of Homarus gammarus
The European lobster, Homarus gammarus , is considered one of the most important fishery resources in Europe, with high economic value and very appreciated seafood. However, in the last century their catch has been decreasing dramatically. Several restocking programs have been developed, but their l...
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ftdoajarticles:oai:doaj.org/article:1dc676a47f2b4e4eb55587ae08e5d6cb 2023-05-15T16:08:49+02:00 Contributions for larval development optimization of Homarus gammarus Pedro Tiago Fonseca Sá Sónia Cotrim Marques 2014-06-01T00:00:00Z https://doi.org/10.3389/conf.fmars.2014.02.00074 https://doaj.org/article/1dc676a47f2b4e4eb55587ae08e5d6cb EN eng Frontiers Media S.A. http://journal.frontiersin.org/Journal/10.3389/conf.fmars.2014.02.00074/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/conf.fmars.2014.02.00074 https://doaj.org/article/1dc676a47f2b4e4eb55587ae08e5d6cb Frontiers in Marine Science, Vol 1 (2014) probiotic Homarus gammarus larval rearing conditions live and dry diets temperature effect Science Q General. Including nature conservation geographical distribution QH1-199.5 article 2014 ftdoajarticles https://doi.org/10.3389/conf.fmars.2014.02.00074 2022-12-31T06:15:39Z The European lobster, Homarus gammarus , is considered one of the most important fishery resources in Europe, with high economic value and very appreciated seafood. However, in the last century their catch has been decreasing dramatically. Several restocking programs have been developed, but their larval development is quite demanding, hindering its cultivation. The present study aimed to contribute to increased knowledge about the larval development and growth of H. gammarus in order to optimize the protocols of captive cultivation. To fulfill these objectives, three complementary and distinct tests were performed, namely: (1) evaluate the effect of different lyophilized diets and live food, (2) evaluate the probiotic effect added to larval rearing and, finally, (3) define the relationship between the temperature effect and the larval development. The diet effect experiment, showed that the dry food, for this type of larval rearing, it is not suitable for H. gammarus larvae, resulting in 100% of mortality before reaching Zoea II, contrasting with the obtained results using live brine shrimp nauplii, with 4.17% survival to PL stage. The addition of probiotics in seawater, proved to be ineffective, with no differences in survival and growth rates, and intermoult period, compared to larvae grown without addition of probiotic in rearing water. The seawater rising temperature resulted in a decrease of intermoult period in all larval development stages and at all tested temperatures, ranging from 4.77 (Z1) to 16.5 days (Z3) at 16°C, whereas at 23°C, ranged from 3:02 (Z1) and 9.75 days (Z3). The results obtained are an extremely useful guide for future optimization of protocols on larval development of H. gammarus . Article in Journal/Newspaper European lobster Homarus gammarus Directory of Open Access Journals: DOAJ Articles Frontiers in Marine Science 1 |
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Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
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language |
English |
topic |
probiotic Homarus gammarus larval rearing conditions live and dry diets temperature effect Science Q General. Including nature conservation geographical distribution QH1-199.5 |
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probiotic Homarus gammarus larval rearing conditions live and dry diets temperature effect Science Q General. Including nature conservation geographical distribution QH1-199.5 Pedro Tiago Fonseca Sá Sónia Cotrim Marques Contributions for larval development optimization of Homarus gammarus |
topic_facet |
probiotic Homarus gammarus larval rearing conditions live and dry diets temperature effect Science Q General. Including nature conservation geographical distribution QH1-199.5 |
description |
The European lobster, Homarus gammarus , is considered one of the most important fishery resources in Europe, with high economic value and very appreciated seafood. However, in the last century their catch has been decreasing dramatically. Several restocking programs have been developed, but their larval development is quite demanding, hindering its cultivation. The present study aimed to contribute to increased knowledge about the larval development and growth of H. gammarus in order to optimize the protocols of captive cultivation. To fulfill these objectives, three complementary and distinct tests were performed, namely: (1) evaluate the effect of different lyophilized diets and live food, (2) evaluate the probiotic effect added to larval rearing and, finally, (3) define the relationship between the temperature effect and the larval development. The diet effect experiment, showed that the dry food, for this type of larval rearing, it is not suitable for H. gammarus larvae, resulting in 100% of mortality before reaching Zoea II, contrasting with the obtained results using live brine shrimp nauplii, with 4.17% survival to PL stage. The addition of probiotics in seawater, proved to be ineffective, with no differences in survival and growth rates, and intermoult period, compared to larvae grown without addition of probiotic in rearing water. The seawater rising temperature resulted in a decrease of intermoult period in all larval development stages and at all tested temperatures, ranging from 4.77 (Z1) to 16.5 days (Z3) at 16°C, whereas at 23°C, ranged from 3:02 (Z1) and 9.75 days (Z3). The results obtained are an extremely useful guide for future optimization of protocols on larval development of H. gammarus . |
format |
Article in Journal/Newspaper |
author |
Pedro Tiago Fonseca Sá Sónia Cotrim Marques |
author_facet |
Pedro Tiago Fonseca Sá Sónia Cotrim Marques |
author_sort |
Pedro Tiago Fonseca Sá |
title |
Contributions for larval development optimization of Homarus gammarus |
title_short |
Contributions for larval development optimization of Homarus gammarus |
title_full |
Contributions for larval development optimization of Homarus gammarus |
title_fullStr |
Contributions for larval development optimization of Homarus gammarus |
title_full_unstemmed |
Contributions for larval development optimization of Homarus gammarus |
title_sort |
contributions for larval development optimization of homarus gammarus |
publisher |
Frontiers Media S.A. |
publishDate |
2014 |
url |
https://doi.org/10.3389/conf.fmars.2014.02.00074 https://doaj.org/article/1dc676a47f2b4e4eb55587ae08e5d6cb |
genre |
European lobster Homarus gammarus |
genre_facet |
European lobster Homarus gammarus |
op_source |
Frontiers in Marine Science, Vol 1 (2014) |
op_relation |
http://journal.frontiersin.org/Journal/10.3389/conf.fmars.2014.02.00074/full https://doaj.org/toc/2296-7745 2296-7745 doi:10.3389/conf.fmars.2014.02.00074 https://doaj.org/article/1dc676a47f2b4e4eb55587ae08e5d6cb |
op_doi |
https://doi.org/10.3389/conf.fmars.2014.02.00074 |
container_title |
Frontiers in Marine Science |
container_volume |
1 |
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1766404843730108416 |