N-3 HUFA’ca zenginleştirilmiş Artemia ile beslenen Yeşil kaplan karidesi (Penaeus semisulcatus) larvalarının büyüme performansı

Catchability and natural mortality are key quantities in fisheries stock assessment. However, it is difficult to estimate these two parameters simultaneously using only fishery catch and effort data. A Bayesian state–space modified delay–difference model is outlined that can estimate time series of catchability by fleet as well as natural mortality. This model, and three variants thereof, is fitted to data for grooved tiger prawns ( Penaeus semisulcatus ) in Australia’s Northern Prawn Fishery during the period of the year when there is little recruitment. A model that allows for both observation and process error and estimates natural mortality is best, in terms of model selection criteria as well as fit diagnostics. The posterior median estimate for catchability for the primary target fleet ranges from 6.15 × 10−4 to 1.09 × 10−4 during 1980–2007, while the posterior median estimate for catchability for a fleet with P. semisulcatus as its byproduct is about 20% of that for the primary fleet. Fishing efficiency increased at approximately 2% annually during 1980–2007, while the weekly natural mortality is estimated to be 0.053 week–1.

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IN VITRO PRIMARY CELL CULTURES FROM PENAEUS SEMISULCATUS

Pathology in Marine Science ◽

10.1016/b978-0-12-550755-4.50007-0 ◽

1990 ◽

pp. 7-13 ◽

Cited By ~ 9

Author(s):

Joshua Rosenthal ◽

Ariel Diamant

Keyword(s):

Cell Cultures ◽

Primary Cell ◽

Primary Cell Cultures ◽

Penaeus Semisulcatus

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Quantitative genetics of disease resistance in different groups of Penaeus semisulcatus from preliminary controlled challenge test with Vibrio parahaemolyticus the aetiological agent of acute hepatopancreatic necrosis disease (AHPND)

Journal of Applied Aquaculture ◽

10.1080/10454438.2018.1545723 ◽

2018 ◽

Vol 31 (1) ◽

pp. 17-33 ◽

Cited By ~ 3

Author(s):

Mohamed E. Megahed

Keyword(s):

Disease Resistance ◽

Quantitative Genetics ◽

Vibrio Parahaemolyticus ◽

Challenge Test ◽

Aetiological Agent ◽

Penaeus Semisulcatus ◽

Acute Hepatopancreatic Necrosis Disease

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Are Vitellin and Vitellogenin Coded by One Gene in the Marine Shrimp Penaeus semisulcatus?

Journal of Molecular Endocrinology ◽

10.1677/jme.0.0120251 ◽

1994 ◽

Vol 12 (2) ◽

pp. 251-254 ◽

Cited By ~ 16

Author(s):

M Khayat ◽

E Lubzens ◽

A Tietz ◽

B Funkenstein

Keyword(s):

Cdna Library ◽

Cdna Clone ◽

Gel Electrophoresis ◽

Gene Products ◽

Cdna Insert ◽

Full Length Cdna ◽

Penaeus Semisulcatus ◽

Marine Shrimp ◽

Female Specific ◽

Very High

ABSTRACT A cDNA clone encoding a female-specific ovarian protein (presumably vitellin, Vt) has been isolated from a cDNA library prepared from poly (A)+ RNA extracted from vitellogenic ovaries of the shrimp Penaeus semisulcatus. The cDNA library was constructed and screened using a major cDNA band which was observed following analysis of total cDNA products by gel electrophoresis. This band, as well as the cDNA insert purified from the library, was estimated to have 1.1 kb. Both hybridized to mRNA prepared from ovaries or hepatopancreas (HEP) of vitellogenic females and showed a faint signal with ovaries from non-vitellogenic females, but did not hybridize to HEP from non-vitellogenic females or to HEP from males or testes. The size of the transcripts from the ovary and HEP was estimated to be 1.1 kb, similar to that of the cDNA insert, suggesting that a full length cDNA had been synthesized. Furthermore, the identical sizes of the transcripts from ovary and HEP and the ability of the ovarian cDNA to detect a transcript in HEP mRNA suggest that Vt from the ovary and vitellogenin (Vg) from HEP are the gene products of one gene. Alternatively, the homology between Vt and Vg is very high.

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