Length-weight Relationships and Fecundity Estimates in Mudskipper, Periophthalmus papilio (Bloch and Schneider 1801) Caught from the Mangrove Swamps of Lagos Lagoon, Nigeria

Lawson, E. O.

doi:10.3923/jfas.2011.264.271

Cited by 31 publications

(17 citation statements)

References 7 publications

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“…Ismen (2005) reported that the functional regression of b value is directly related to weight and is affected by environmental parameters such as food supply. There are some studies that have been done on the length-weight relation and feeding habits in fish (Hosseini et al, 2009;Lawson, 2011). In the present study, feed supply with different probiotic concentrations was studied and a positive allometric growth was observed in the treatment which was fed on 3×10 4 CFU g -1 level of B.subtilis and B. circulance.…”

Section: Discussionmentioning

confidence: 74%

“…Peters (1983) reported that fecundity in fishes is positively correlated with the length and the amount of energy available for egg production, and the egg accommodation capacity of the body cavity increases with fish size. Also other researchers report that fecundity may increase with increased body size in fish (Lawson, 2011). The improvement of fish fecundity in aquaculture will give rise to sustainable expanse in this industry.…”

Section: Discussionmentioning

confidence: 94%

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GROWTH AND LENGTH-WEIGHT RELATIONSHIP OF Trichopodus trichopterus (Pallas, 1770) FED A SUPPLEMENTED DIET WITH DIFFERENT CONCENTRATIONS OF PROBIOTIC

Jafaryan

Sahandi

Dorbadam

2014

CJF

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The aim of the present study was to evaluate the effects of diet with different microbial concentrations on the growth and length-weight relationship of Trichopodus trichopterus. For this aim a study was designed with four experimental treatments and the control to evaluate different microbial concentrations on growth and length-weight relationship. The counts of bacteria that were used for dietary supplementation were 1×10 4 , 2×10 4 , 3×10 4 and 4×10 4 CFU g -1 in T1, T2, T3 and T4 treatments, respectively. The results indicated that the use of 3×10 4 CFU g -1 concentration increased the length, and a positive allometric growth was observed. The higher length frequency was estimated in T3. The results indicated that the use of microbial additives with proper concentration causes different allometric growth.

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Section: Discussionmentioning

confidence: 74%

Section: Discussionmentioning

confidence: 94%

GROWTH AND LENGTH-WEIGHT RELATIONSHIP OF Trichopodus trichopterus (Pallas, 1770) FED A SUPPLEMENTED DIET WITH DIFFERENT CONCENTRATIONS OF PROBIOTIC

Jafaryan

Sahandi

Dorbadam

2014

CJF

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“…The development of spermatogenesis in fish proceeds through stages of multiplication, growth and maturation (Schulz et al . ; Lawson ). Within the seminal vesicle of B. sharpeyi testes, spermatogonia, spermatocytes, spermatids and spermatozoa were observed.…”

Section: Discussionmentioning

confidence: 99%

“…Tissue samples were fixed in 10% neutral‐buffered formalin. Following dehydration in graded ethanol concentrations (50–99.9%), the tissues were cleared in xylene and embedded in paraffin wax (Lawson ). Sections of 4 mm were cut from the middle part of each testicular lobe using a rotational microtome (RM 2155; Leica, Heidelberg, Germany), mounted on glass slides and stained in haematoxylin and eosin.…”

Section: Methodsmentioning

confidence: 99%

Retracted : Study of testis histology and sperm morphology in the Bunnei, Barbus sharpeyi (Gunther, 1874) induced by luteinizing hormone-releasing hormone analogue and carp pituitary extract

2015

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This study was conducted to determine the effects of hormone treatment on testis structure in Barbus sharpeyi, as well as the morphology of sperm examined by scanning electronic microscopy (SEM). Male B. sharpeyi were divided into three groups (three fish per group) and injected with luteinizing hormone -releasing hormone analogue (LHRH-A 2 ) or carp pituitary extract (CPE). The first and second groups were treated with 10 lg kg À1 LHRH-A 2 and metoclopramide (MET), and their testis were sampled pre-and Poststripping respectively. The third group received 2 mg kg À1 CPE and were killed pre-stripping. Based on the histological results obtained, the testicular connective tissue of the lumen was thicker, and seminal vesicles were of a lower volume, in fish injected with CPE in comparison to the other groups. After treatment with LHRH-A 2 and MET, not all spermatozoa within the testis were ejaculated, and only a small amount of sperm was obtained by abdominal stripping. The highest and lowest diameters of connective tissue within lobules were observed in fish receiving CPE and LHRH-A 2 treatments respectively. There was a significant difference (P < 0.05) in lobule space between the fish injected with the CPE and the fish injected with the LHRH-A 2 and MET. The SEM results revealed that the spermatozoa of B. sharpeyi were composed of a spherical to elliptical head, a cylindrical midpiece, and a lengthy flagellum. In conclusion, it was found that injection with LHRH-A 2 and MET improved the spermatogenic process in comparison to injection with CPE.

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“…Hubungan panjang-berat juga berguna dalam pengelolaan perikanan baik untuk penggunaan penelitian dasar maupun aplikasi (Pitcher andHart 1982 dalam Shingadia 2012), mengestimasi berat dari panjang ikan observasi, menghitung produksi dan biomas dari populasi ikan serta memberikan informasi tentang stok atau kondisi organisme (Hossain et al 2006). Menurut Lawson (2011) informasi data hubungan panjang berat ikan bermanfaat dalam manajemen dan konservasi suatu perairan.…”

Section: Pendahuluanunclassified

DISTRIBUSI UKURAN IKAN TERI (Stolephorus sp) YANG DITANGKAP PADA PERIKANAN BAGAN TANCAP DI MUARA SUNGSANG SUMATERA SELATAN (Size Distribution of Anchovy (Stolephorus sp.) Caught in Stationary Liftnets at Sungsang Estuary South Sumatera)

Fauziyah¹,

Hadi²,

Saleh³

et al. 2016

Jurnal Marfis

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Length-weight Relationships and Fecundity Estimates in Mudskipper, Periophthalmus papilio (Bloch and Schneider 1801) Caught from the Mangrove Swamps of Lagos Lagoon, Nigeria

Cited by 31 publications

References 7 publications

GROWTH AND LENGTH-WEIGHT RELATIONSHIP OF Trichopodus trichopterus (Pallas, 1770) FED A SUPPLEMENTED DIET WITH DIFFERENT CONCENTRATIONS OF PROBIOTIC

GROWTH AND LENGTH-WEIGHT RELATIONSHIP OF Trichopodus trichopterus (Pallas, 1770) FED A SUPPLEMENTED DIET WITH DIFFERENT CONCENTRATIONS OF PROBIOTIC

Retracted : Study of testis histology and sperm morphology in the Bunnei, Barbus sharpeyi (Gunther, 1874) induced by luteinizing hormone-releasing hormone analogue and carp pituitary extract

DISTRIBUSI UKURAN IKAN TERI (Stolephorus sp) YANG DITANGKAP PADA PERIKANAN BAGAN TANCAP DI MUARA SUNGSANG SUMATERA SELATAN (Size Distribution of Anchovy (Stolephorus sp.) Caught in Stationary Liftnets at Sungsang Estuary South Sumatera)

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