Manukau City, New Zealand
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Jawad L.A.,Flat Bush | Park J.M.,Macquarie University | Kwak S.N.,Environmental Ecological Engineering Institute Co Ltd | Ligas A.,CIBM
Cahiers de Biologie Marine | Year: 2017

Relationships between fish size and otolith measures were analysed in four species from the south-eastern Yellow Sea: marbled flounder Pseudopleuronectes yokohamae (Gunther, 1877), bastard halibut Paralichthys olivaceus (Temminck & Schlegcl, 1846) (Pleuronectiformes), and Korean rockfish Sebastes schlegelii Hilgendorf, 1880, and greenling, Hexagrammos otakii Jordan & Starks, 1895 (Scorpaeniformes). The analysis of covariance (ANCOVA) was used to test the effect of the categorical factor sex in the fish weight and total length relationship. Significant difference in fish weight and total length relationship between males and females was highlighted in P. yokohamae only. The relationship between fish standard length and total length was described by means of a linear regression model, while the relationships between fish weight-Total length, otolith length-fish total length, otolith weight-length, and otolith width-length were analysed by means of non-linear models.


Farrag M.M.S.,Alexandria University | Jawad L.A.,Flat Bush | Elhaweet A.E.A.K.,Arab Academy for Science and Technology
Marine Biodiversity Records | Year: 2016

Background: Priacanthus sagittarius and P. arenatus are the only two priacanthid species recorded from the Mediterranean Sea. Results: The Arrow Bulleye Priacanthus sagittarius is reported for the first time from Egyptian waters of the Mediterranean Sea. On 19 May 2015, a single juvenile specimen (129 mm total length) of P. sagittarius was captured at a depth of 35 m in a trawl in the waters around Alexandria, on the north coast of Egypt. Conclusions: The current specimen represents the first record of the lessepsian P. sagittarius from Egyptian waters and the third from the Mediterranean Sea. © 2016 The Author(s).


Jawad L.A.,Flat Bush | Fjelldal P.G.,Norwegian Institute of Marine Research | Hansen T.,Norwegian Institute of Marine Research
Marine Biodiversity | Year: 2016

Vertebral deformities are reported in fivebeard rockling Ciliata mustela (Lotidae) collected from Masfjorden, Western Norway. Four abdominal and four caudal vertebrae were involved in the anomalies. A hyperostotic haemal spine was observed. In addition, other minor anomalies were noticed in the abnormal specimen. It is possible that either genetic and/or epigenetic factors may have been implicated in this anomaly. © 2016 Senckenberg Gesellschaft für Naturforschung and Springer-Verlag Berlin Heidelberg


Jawad L.A.,Flat Bush | Jig L.,CAS Qingdao Institute of Oceanology
Journal of the Marine Biological Association of the United Kingdom | Year: 2016

Seven osteological characters of the axial skeleton are studied in the eight species of the genus Pampus. The characters include: pattern of interdigitation of the dorsal- and anal-fin pterygiophores with the neural and haemal spines of the vertebrae, structure of the vertebral column, distribution of the dorsal- and ventral- procurrent caudal-fin rays, distribution of the principal caudal-fin rays and the morphology of the caudal-fin skeleton. All these features appear to be useful in the characterization of the eight species of the genus Pampus. Formulae for the structure of the vertebral column, the dorsal- and anal-fin pterygiophores’ interdigitation with the neural and haemal spines of the vertebrae, distribution of the dorsal and ventral procurrent caudal-fin rays, and distribution of the principal caudal-fin rays were developed. Pampus nozawae was recently considered a synonym of P. argenteus. However, according to the characters used in the present study, this species is notably distinct from P. argenteus. Copyright © Marine Biological Association of the United Kingdom 2016


In this study a case of hyperostosis was studied in teleost fish Pagrus auratus sampled from Bay of Plenty and the North Eastern coast of New Zealand. New characteristics of the hyperostosis (position and shape) were added to those previously given for the species Pagrus auratus. The hyperostosis was found in the neural spine of the sixth caudal vertebra and the haemal spine of the sixth, seventh, and eighth caudal vertebrae. The present study showed that shape of hyperostosis in the silver bream could be irregular-spherical, spherical, elongated, pear-shaped, and elongated pear-shaped. © 2015, Instytut Technologii Drewna. All rights reserved.


PubMed | College of Charleston, Flat Bush and Fisheries Research Center Salalah
Type: Journal Article | Journal: Zootaxa | Year: 2015

Symphysanodon andersoni was described in 1974 from a single specimen collected southwest of Socotra Island, near the entrance to the Gulf of Aden. A more recent report (2003) of its capture in the Gulf of Kutch, Arabian Sea, was based on a misidentification. The second known specimen of the Bucktoothed Slopefish, S. andersoni, (at 204 mm SL the largest known specimen of the genus Symphysanodon) was collected off the south coast of Oman, Arabian Sea, in April 2014. Symphysanodon andersoni is distinguishable from its congeners by number of tubed scales in the lateral line, 60 to 65 versus 42 to 59 in the other species of the genus. In view of the fact that S. andersoni is poorly known, we redescribe it based on the holotype and the new specimen collected off Oman and provide the first color photograph of the species.


Avigliano E.,University of Buenos Aires | Jawad L.A.,Flat Bush | Volpedo A.V.,University of Buenos Aires
Journal of the Marine Biological Association of the United Kingdom | Year: 2015

In the present work we describe nine saccular otolith morphometric indices (circularity, rectangularity, aspect ratio, percentage of the otolith surface occupied by the sulcus, percentage of the sulcus length occupied by the cauda length and ostium length, otolith length relative to the length of the fish, rostrum aspect ratio and percentage of the rostrum length occupied by the otolith length) of 41 species of the Tripterygiidae family collected mainly from New Zealand, Australia, Chile, South Africa, Mediterranean Sea and North America. The principal component of analysis showed that the indices that best explain the variability between species were related to sulcus and rostrum morphometry. According to cluster analysis, otolith morphometry could reflect the diversity of microenvironments for some genera such as Notoclinops and Forsterygion, while this does not happen to genera like Enneapterygius and Ruanoho. The discriminant analysis showed that the species Helcogrammoides cunninghami, Karalepis stewarti, Lepidoblennius haplodactylus, Notoclinus compressus, Ucla xenogrammus can be discriminated by using the morphometric indices. Two new indices related to the sulcus that were of great value for the discrimination of these species are described for the first time. This information will be a useful tool for palaeontological, taxonomic and trophic ecology studies. Copyright © Marine Biological Association of the United Kingdom 2015


Asymmetry analysis was carried out for three bilateral characters of two cichlid fish species, Sarotherodon melanotheron and Coptodon guineensis collected from two localities, Lake Ahémé and Porto-Novo lagoon, Republic of Bénin, West Africa. For both S. melanotheron and C. guineensis snout length (SL), eye diameter (ED) and number of scales on lateral line (LLS), bilateral asymmetry was higher in the fish specimens collected from Porto-Novo lagoon compared with that of specimens from Lake Ahémé. Bilateral asymmetry in S. melanotheron and C. guineensis increased with the fish size at all localities. The possible causes of bilateral asymmetry in the two cichlid species are discussed in relation to different pollutants in both water bodies. © 2016 Elsevier Ltd.


Asymmetry analysis was carried out for three bilateral characters of two cichlid fish species, Sarotherodon melanotheron and Coptodon guineensis collected from two localities, Lake Ahémé and Porto-Novo lagoon, Republic of Bénin, West Africa. For both S. melanotheron and C. guineensis snout length (SL), eye diameter (ED) and number of scales on lateral line (LLS), bilateral asymmetry was higher in the fish specimens collected from Porto-Novo lagoon compared with that of specimens from Lake Ahémé. Bilateral asymmetry in S. melanotheron and C. guineensis increased with the fish size at all localities. The possible causes of bilateral asymmetry in the two cichlid species are discussed in relation to different pollutants in both water bodies. © 2016 Elsevier Ltd.


Asymmetry analysis was carried out for three bilateral characters of two cichlid fish species, Sarotherodon melanotheron and Coptodon guineensis collected from two localities, Lake Ahm and Porto-Novo lagoon, Republic of Bnin, West Africa. For both S. melanotheron and C. guineensis snout length (SL), eye diameter (ED) and number of scales on lateral line (LLS), bilateral asymmetry was higher in the fish specimens collected from Porto-Novo lagoon compared with that of specimens from Lake Ahm. Bilateral asymmetry in S. melanotheron and C. guineensis increased with the fish size at all localities. The possible causes of bilateral asymmetry in the two cichlid species are discussed in relation to different pollutants in both water bodies.

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