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IDENTIFICATION and TAXONOMIC STUDY of SHRIMPS in BARDAWIL LAGOON, NORTH SINAI, EGYPT Samar A

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IDENTIFICATION and TAXONOMIC STUDY of SHRIMPS in BARDAWIL LAGOON, NORTH SINAI, EGYPT Samar A SINAI Journal of Applied Sciences 10 (1) 2021 039-046 Available online at www.sinjas.journals.ekb.eg SINAI Journal of Applied Sciences Print ISSN 2314-6079 Online ISSN 2682-3527 IDENTIFICATION AND TAXONOMIC STUDY OF SHRIMPS IN BARDAWIL LAGOON, NORTH SINAI, EGYPT Samar A. Amin1*, G.D.I. Hassanen2 and M.S. Ahmed3 1. Post-Grad. Stud., Dept. Fish Res., Fac. Environ. Agric. Sci., Arish Univ., Egypt. 2. Dept. Fish Res., Fac. Environ. Agric. Sci., Arish Univ., Egypt. 3. Fac. Aquacul. and Marine Fisheries, Arish Univ., Egypt. ARTICLE INFO ABSTRACT Article history: Taxonomic study of shrimp on the Bardawil lagoon, were studied in Received: 14/03/2021 specimens of shrimp collected from Bardawil lagoon fishers from Seasonal Revised: 19/03/2021 occurrence of shrimp During, 2019. Identification of species was based on the Accepted: 01/04/2021 morphological characters of rostrum (dorsal and ventral teeth), remarks of Available online: 13/04/2021 carapace, antenna, sub apical spines on telson and the colored pattern of the Keywords: whole body based on standard keys and diagnoses available from the current Species, literature. Modified Key identify shrimp species from Bardawil lagoon, was Shrimps, prepared after morphometric analysis. A total of 5 species from belong to Taxonomic, three genus; Penaeus, Melicertus and Metapenaeus. Among these, two Bardawil lagoon species belong to the genus Penaeus (Penaeus semisulcatus (De Haan, 1844) and Penaeus (Marsupenaeus) japonicas (Bate, 1888). The species which taken from genus Metapenaeus namely Metapenaeus stebbingi (Nobili, 1904) and Metapenaeus monoceros. (Fabricus, 1798), One species belong to the genus Melicertus kerathurus. (Forskål, 1775). Additional research is needed Check for to more clearly define the distribution of shrimp species in Bardawil lagoon. updates INTRODUCTION MATERIALS AND METHODS Penaeid shrimps are important resources Bardawil lagoon (Fig. 1) is a shallow lagoon of high salinity. It’s area about 685 for worldwide fisheries and aquaculture. 2 They supply the increasing population with km (165,000 acres) and extends for a distance of about 95 km, from point 45 km east of animal proteins and provide significant Port Said to the point 18 km west of Al- earnings of foreign exchange for developing Arish and its maximum width is 22 km and countries (Jayawickrama, 2010). Without the average depth is 135 cm (Gafrd, 2009). taxonomy, nobody would be sure of the identity of organisms whether they belonged Sampling and Morphological to the same or different species as the failure Identification to recognize fishes as distinct biological The study was carried out during the 3 units can lead to wrong diagnosis (Guerra- seasons (Summer- Spring-Autumn). The Garcia Without taxonomy, nobody would collection of 731 random samples of shrimp be sure of the identity of organisms whether species from the commercial catch of they belonged to the same or different Bardawil Lagoon, 2019. Which were iced in species as the failure to recognize fishes as an ice bin and transported to the laboratory distinct biological units can lead to wrong of the Institute of Environmental Studies, Arish University for taxonomic examinations diagnosis (Guerra-Garcia et al., 2008; and measurements. The present study was Keat-Chuan et al., 2017). This research is mainly based on the phenotype and meristic preliminary attempt to provide a detailed character observation of fresh specimens in identification of shrimps in Bardawil lagoon. the samples. ـــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــــ * Corresponding author: E-mail address: [email protected] https://doi.org/ 10.21608/SINJAS.2021.67830.1012 © 2020 SINAI Journal of Applied Sciences. Published by Fac. Environ. Agric. Sci., Arish Univ. All rights reserved. 40 Amin, et al. | SINAI Journal of Applied Sciences 10 (1) 2021 039-046 Fig. 1. Satellite image of Bardawil lagoon The present study was mainly based on which taken from genus Metapenaeus the phenotype and meristic character namely Metapenaeus stebbingi and observation of fresh specimens in the Metapenaeus monoceros. One species samples. Shrimps were examined using belong to the genus Melicertus (Melicertus hand lenses and under a binocular stereo kerathurus). Morphometric characteristics microscope (OPTIKA Stereomicroscope showed more distinguish between MB5–4083.B5, Italy). Samples were individuals of Penaeus and Metapenaeus as determined at the species level and before the identification of shrimps traditionally Measurement, samples were separated on are relied on morphometric analysis; however, the basis of phenotype. The identity was it is well known that such characteristics are confirmed with the help of widely used influenced by environmental conditions references (De Bruin et al., 1994; Carpenter (Bowman et al., 1982). Piratheepa et al. and Niem, 1998 and Piratheepa et al., (2016), described Penaeus semisulcatus as 2016). having a reddish brown to pale brown body color may be Dark in color. The pulpit has RESULTS AND DISCUSSION 5-8 teeth on the top and 2-4 teeth on the ventral side. Based on the morphological Morphological Analyses and Shrimp characteristics, two groups of P. semisulcatus Species are distinguished in the Persian Gulf. The first group is characterized by a reddish In this study, a total of five species of body color with deep red or brown Penaeid shrimps were identified by transverse bands, cream and brown striped morphologically. Shrimp were determined color of the whip antenna. Second group based on the following morphological subspecies of P. persicus, is characterized characteristics. Number of rostral teeth, by a creamy pink body color without distinct down area telson and exopods on fifth transverse stripes, and its whip antenna has pereiopods were considered one of the a cream color without stripes (Rahnama et major morphological characteristics used to al., 2010). Otero et al. (2013), were identified identify shrimp species, which is categorized Marsupenaeus japonicus, result showed a under one family, the Penaeidae family. It well-developed rostrum with 7 - 11 teeth on became clear through the study, there are the dorsal margin and 1 tooth on the ventral five species belong to three genus; Penaeus, marginal. The body was pale, with brown Melicertus and Metapenaeus. Among these, bands and the pereiopods and pleopods two species belong to the genus Penaeus were pale yellow near their bases with blue (Penaeus semisulcatus and Penaeus markings near the tips. FAO (2011) describe (Marsupenaeus) japonicas). The species Amin, et al. | SINAI Journal of Applied Sciences 10 (1) 2021 039-046 41 Melicertus kerathurus body is light creamy 7. Rostrum with one tooth on ventral side brown with gray spots and rust colored. …. Penaeus (Marsupenaeus) japonicas Carapace is Creamy. Rostrum has Mostly 9 and Melicertus kerathurus. teeth on the top and 1 tooth appear on the 8. Rostrum with 9–10 teeth on dorsal side, ventral side. There are 3 cicatrices on the pereiopods and pleopods yellow and blue last abdominal segments. Piratheepa et al. and 3 pairs of movable spines on telson. (2016) descriptive remarks for Metapenaeus Body with yellow and brown bands monoceros as follows body pink, antennae ……Penaeus (Marsupenaeus) japonicas. with a red Colour; pereopods and pleopods of same Colour as body, sometimes more 9. Rostrum with 8–13 teeth on dorsal side and there are spines on base of first 2 intensely pink. Carapace is pink with a pairs of pereiopods ………. Melicertus grayish dark spot. Rostrum has 9-12 teeth kerathurus. on the top and no tooth appear on the ventral side. The outer tip of the Telson is Shrimps were identified based on the blue. Jayawickrama (2010). Describe of morphological characteristics. Through Metapenaeus stebbingi. Body white to virtual examination and microscopic creamy–yellow with grey and rust coloured examination inside the laboratory, each specks; antennae Colour to grey–purplish. species was determined separately by The rostrum there is no tooth on ventral studying its phenotype as a follow: side and 7-10 teeth on the top. Telson with Penaeus semisulcatus (De Haan, 1844) spines. All of these results are in complete Common name agreement with the results of this thesis in describing their type in terms of Green tiger prawn. appearance. Colour Key Identifies Shrimp Species from Pale reddish brown with dark brown Bardawil Lagoon dorsal transverse stripes. White and brown antenna. 1. Rostrum with teeth on its dorsal side only ......... Genus Metapenaeus. Descriptive remarks 2. Rostrum with 9–12 teeth on dorsal side, The carapace is reddish brown Colour telson with movable spines and there are with Brown transverse lines. The rostrum basial spines on first 3 pereiopods has 5-8 teeth on the top and 2-4teeth appear ……… Metapenaeus monoceros. on the ventral side. Antenna banded white and brown. 3. Rostrum with 8–10 teeth on dorsal side and no ischial spine on 1stpereiopod Penaeus (Marsupenaeus) japonicus …….. Metapenaeus stebbingi. (Spence Bate, 1888) Common name 4. Rostrum with teeth on its dorsal and ventral side………Genus Penaeus. Kuruma prawn 5. Rostrum with 2–4 teeth on ventral side Colour ………. Penaeus semisulcatus. Lightly brown to greenish brown with 6. Rostrum with 5–8 teeth on dorsal side, blue edge at tail fan. and no spines on telson and antennae Descriptive remarks banded white and brown. Dark green to The carapace is soft and shiny. The dark brown cross bands on the abdomen, rostrum has one tooth on ventral side and 9 leg with yellow and reddish bands ……. teeth on the top. Telson has a mixture of Penaeus semisulcatus. three colors brown, yellow and blue. 42 Amin, et al. | SINAI Journal of Applied Sciences 10 (1) 2021 039-046 Fig. 2. Penaeus semisulcatus from Bardawil lagoon during fishing season, 2019 Fig. 3. Penaeus (Marsupenaeus) japonicus from Bardawil lagoon during fishing season, 2019 Fig. 4. Melicertus kerathurus from Bardawil lagoon during fishing season, 2019 Melicertus kerathurus (Forskål, 1775) Descriptive remarks Colour The carapace is pink with a grayish dark spot. The rostrum has 9-12 teeth on the top The body is light creamy brown with and no tooth appear on the ventral side.
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