Egyptian Journal of Aquatic Research最新文献

{"title":"Effect of background tank color in combination with sand substrate and shelters on survival and growth of Scylla tranquebarica instar","authors":"Fui Yin Thien ,&nbsp;Katsuyuki Hamasaki ,&nbsp;Rossita Shapawi ,&nbsp;Gunzo Kawamura ,&nbsp;Joana Joy de la Cruz-Huervana ,&nbsp;Annita Seok Kian Yong","doi":"10.1016/j.ejar.2022.04.004","DOIUrl":"10.1016/j.ejar.2022.04.004","url":null,"abstract":"<div><p>Effect of tank color in combination with substrate-shelters on the survival and growth of the instar of purple mud crab, <em>Scylla tranquebarica</em> (initial body weight of 28.7 ± 2 mg) was investigated. Ten treatments were tested in triplicate with black (B) and white (W) tanks were set as the control, while other tanks were provided with a combination of sand substrate (S), and/or polyvinyl chloride pipes (P) as horizontal and nets (N) as vertical shelter, referred as B, BS, BSP, BSN, BSPN, W, WS, WSP, WSN and WSPN, respectively. Survival of the instar in black tanks (26.7 to 60.0%) was higher than in white tanks (20.0 to 46.7%) (<em>P</em> = 0.052). Survival in the horizontal shelter treatments (46.7 and 63.3%) exceeded that in the vertical shelter groups (30.0 and 50.0%) (<em>P</em> = 0.068). The final body weight of the instar in black tank (2.4 to 3.8 g) was significantly lower than white tank (2.6 to 4.8 g) (<em>P</em> = 0.02). Specific growth rate was significantly greater in sand substrate treatments (8.4 to 9.1%/day) than in controls (7.9 and 8.0%/day) (<em>P</em> = 0.015). In conclusion, horizontal shelter was better than vertical type, and black tank with substrate and horizontal shelter was more suitable for culture of purple mud crab instar.</p></div>","PeriodicalId":46117,"journal":{"name":"Egyptian Journal of Aquatic Research","volume":"48 3","pages":"Pages 241-246"},"PeriodicalIF":3.5,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1687428522000280/pdfft?md5=d11c82da905fc034fd5b55318b750c6d&pid=1-s2.0-S1687428522000280-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80374586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First insight into the growth and population aspects of the carpet clam Paphia textile (Gmelin, 1791), the main bivalve species along the Suez Canal, Egypt","authors":"Marwa I. Farghaly ,&nbsp;Tamer El-Sayed Ali ,&nbsp;Hanan M. Mitwally ,&nbsp;Fatma A. Abdel Razek","doi":"10.1016/j.ejar.2022.06.003","DOIUrl":"10.1016/j.ejar.2022.06.003","url":null,"abstract":"<div><p>The current study provides the first insights into the growth and population aspects of the commercial<!--> <!-->clam <em>Paphia textile</em>, the most abundant bivalve species produced from the Timsah Lake (TL) and Great Bitter Lake (GBL), along the Suez Canal, Egypt. An intensive study was carried out for one year (December 2019-November 2020). A total of 14,932 random clam samples were obtained from commercial catches (before size-sorting) operated at a depth of five meters. The present results revealed a positive allometric growth pattern of shell length-weight relationship for the <em>Paphia</em> populations. Growth parameters derived were L∞ = 69.5 &amp; 73.9 mm, K = 0.60 &amp; 0.51 yr⁻¹, t_o = −0.214 &amp; −0.249, and Φ' = 3.462 &amp; 3.445 for TL and GBL, respectively. In conclusion, the current findings revealed high mortality and exploitation levels of the venerid <em>P. textile</em> in TL and GBL, which highlighted the urgent need to manage this resource in its primary and exclusive areas of production along the Suez Canal.</p></div>","PeriodicalId":46117,"journal":{"name":"Egyptian Journal of Aquatic Research","volume":"48 3","pages":"Pages 265-272"},"PeriodicalIF":3.5,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1687428522000449/pdfft?md5=e88176924d2dea0f4b4b6c07c626267d&pid=1-s2.0-S1687428522000449-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81384152","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Diet composition, feeding dynamics and proximate composition of obtuse barracuda Sphyraena obtusata (Cuvier, 1829) in the southeastern Arabian Sea","authors":"Meshram M M ,&nbsp;Mridula Rajesh ,&nbsp;Suyani N K ,&nbsp;Rajesh K M","doi":"10.1016/j.ejar.2021.09.008","DOIUrl":"10.1016/j.ejar.2021.09.008","url":null,"abstract":"<div><p>The feeding dynamics and nutritional value of obtuse barracuda, Sphyraena obtusata collected from the coastal waters of Karnataka, southeastern Arabian Sea, India, were investigated between August 2019 to March 2020. Three hundred and fifty five specimens of obtuse barracuda having 16.5–30.1 cm total length and 23.63–175.27 g total weight were analyzed. Of the analyzed stomachs, 119 stomachs (vacuity index = 33.52%) were empty. The high feeding intensity was observed during March with 32.43% fishes having full stomachs. Stomach fullness index values were significantly (p &lt; 0.05) higher during November (2.46 ± 0.44) and March (2.46 ± 0.41). The most dominant prey item in terms of frequency (87.80%), number (57.63%), volume (91.82%), and % IRI (93.76%) was teleosts. Crustaceans and cephalopods were encountered less frequently and were represented by Acetes sp. and Uroteuthis duvauceli respectively. The high protein (21.39 ± 0.52%) and fat (1.21 ± 0.33%) content recorded during March resulted in high-energy value (102.11 ± 5.20). The information on dietary composition and nutritional value of obtuse barracuda provided in this study can be useful for sustainable management of the fish stock in the Karnataka coast. The high protein and energy content indicated that this fish may be considered as highly nutritive food for a healthy diet.</p></div>","PeriodicalId":46117,"journal":{"name":"Egyptian Journal of Aquatic Research","volume":"48 2","pages":"Pages 163-168"},"PeriodicalIF":3.5,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1687428521000728/pdfft?md5=adb6afc08da64abf364b933c692486a2&pid=1-s2.0-S1687428521000728-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88110176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The degradation scenario of man-made lakes from satellite observations: A case of Wadi El-Rayan lakes, Egypt","authors":"Radwan G. Abd Ellah ,&nbsp;Md. Nazmul Haque","doi":"10.1016/j.ejar.2022.03.003","DOIUrl":"10.1016/j.ejar.2022.03.003","url":null,"abstract":"<div><p>The environmental changes in the wetlands are one of the major problems facing us in recent decades. Lately, many fluctuations have been observed in Wadi El-Rayan lakes. The geo-spatial analysis plays a great role in detecting the changes in Wadi El-Rayan lakes. The aim of the current study is to enrich the knowledge about Wadi El-Rayan Depression and to identify the changes in its lakes (Upper Lake and Lower Lake) and land cover by integration between RS and GIS techniques. The Upper Lake has become completely full with relative stability in its water area of around 53.61 (±2%) million m², but the Lower Lake is markedly decreasing by 1.92 million m² per year. It should be noted that it is hard to manage those artificial lakes because of human activities. These activities include reusing drainage water, land reclamation, and rapidly expanding aquaculture. Therefore, the optimum solution to this problem is to adjust water allocation within Wadi El-Rayan lakes by reducing the amount of water diverted for reuse, agriculture, and fish farms, or at least resecting the growth in these water uses to help stop or slow the decrease in Wadi El-Rayan lakes.</p></div>","PeriodicalId":46117,"journal":{"name":"Egyptian Journal of Aquatic Research","volume":"48 2","pages":"Pages 99-106"},"PeriodicalIF":3.5,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1687428522000231/pdfft?md5=685a74b469c812a6513c280dfdee70db&pid=1-s2.0-S1687428522000231-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85470799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pathogenicity of newly emerged bacterial pathogens, Pseudomonas stutzeri and P. oleovorans, in the Red Sea seabream Diplodus noct","authors":"Arafah M. Emam ,&nbsp;Mohie Haridy ,&nbsp;Nahla Hossam Eldin Ahmed","doi":"10.1016/j.ejar.2022.02.001","DOIUrl":"10.1016/j.ejar.2022.02.001","url":null,"abstract":"<div><p><em>Pseudomonas</em> is one of the most varied genera noted for its metabolism and genetic versatilities, which enable it to survive in various environmental conditions, including marine habitats. <em>Pseudomonas</em> species associated with fish diseases have rapidly increased, and new species are constantly being isolated. In this study, two newly emerged marine <em>Pseudomonas</em> pathogens, AMP-HB1 and AMP-FB1, were isolated from infected blackspot snapper, <em>Lutjanus ehrenbergii</em>, and blacktail butterflyfish, <em>Chaetodon austriacus</em>, from the National Institute of Oceanography and fisheries aquarium in Hurghada. External signs of naturally infected fish were ulcers, erosion, ophthalmitis, and cutaneous hemorrhage. The results of 16S rDNA sequencing and phylogenetic analysis confirmed that the AMP-HB1 and AMP-FB1 isolates were <em>Pseudomonas stutzeri</em> and <em>P. oleovorans</em>/<em>pseudoalcaligenes</em>, respectively. A challenge experiment was conducted in which the Red Sea seabream <em>Diplodus noct</em> were injected with a series of three different doses of 1 × 10⁷, 1.5 × 10⁸, and 3 × 10⁸ CFU from each isolate. After 7 days, the survival rates were found to be 25%, 16.6%, and 0% for <em>P. stutzeri</em> and 66.6%, 16.6%, and 0% for <em>P. oleovorans</em>, respectively. In addition, <em>P. stutzeri</em> exhibited multiantibiotic resistance to streptomycin, chloramphenicol, and ciprofloxacin. As well, <em>P. oleovorans</em> exhibited 100% resistance to the antibiotics used in this study.</p></div>","PeriodicalId":46117,"journal":{"name":"Egyptian Journal of Aquatic Research","volume":"48 2","pages":"Pages 169-174"},"PeriodicalIF":3.5,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1687428522000073/pdfft?md5=13ed5872b28657dcfd29fbb4c3dc0535&pid=1-s2.0-S1687428522000073-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86195007","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"First record of a swarm of Thalia democratica (Chordata: Tunicata) in the Egyptian Mediterranean coast","authors":"Khaled M. Abdelsalam ,&nbsp;Sherif E. Ramadan ,&nbsp;Hamdy O. Ahmed","doi":"10.1016/j.ejar.2021.09.004","DOIUrl":"10.1016/j.ejar.2021.09.004","url":null,"abstract":"<div><p>The current study is the first to document a vast swarm of the pelagic tunicate <em>Thalia democratica</em> inshore of the Egyptian Mediterranean waters. On the May 05, 2021, a swarm of the Salpida <em>T</em>. <em>democratica</em> was discovered inshore of the coast of Stanley. The swarm coincided with a red tide bloom in the research area. The documented species is given a brief redescription with illustrative photographs, taxonomic annotations, habitat notes, and distribution.</p></div>","PeriodicalId":46117,"journal":{"name":"Egyptian Journal of Aquatic Research","volume":"48 2","pages":"Pages 131-135"},"PeriodicalIF":3.5,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1687428521000686/pdfft?md5=40a7e0b32efca241b1bfb27de6d27964&pid=1-s2.0-S1687428521000686-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82244141","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Trammel net size selectivity and determination of a minimum legal size (MLS) for the haffara seabream, Rhabdosargus haffara in the Gulf of Suez","authors":"Mahmoud A. Saber,&nbsp;Azza A. El-Ganainy,&nbsp;Amgad M. Shaaban,&nbsp;Hanan M. Osman,&nbsp;Ayman S. Ahmed","doi":"10.1016/j.ejar.2022.02.005","DOIUrl":"10.1016/j.ejar.2022.02.005","url":null,"abstract":"<div><p>The size selectivity of trammel nets used in the Suez Bay in small-scale fishing operations was calculated for the haffara seabream <em>Rhabdosargus haffara</em> using length-frequency distributions of the catch from three different mesh sizes (34, 37 and 40 mm) of the inner layer of the trammel net. Three experimental fishing trials were conducted in the Suez Bay during October 2018, and<!--> <!-->January and September 2019. The SELECT method has been used to estimate selectivity parameters using five major models (log-normal model, normal location model, normal scale model, gamma model, and bi-normal model). The bi-normal was assessed as the most appropriate model for the haffara seabream<em>.</em> Modal sizes were estimated as 11.8, 12.1, 16.1 cm for 34, 37 and 40 mm mesh sizes, respectively. The calculated lengths at first maturity (L_m) were 13.67 cm for males and 14.15 cm for females. Our findings revealed that the fish lengths caught by the inner layer 34 and 37 mm mesh sizes were less than the length at first maturity, while, those caught with 40 mm were more than the length at first maturity. The minimum legal size (MLS) for <em>R. haffara</em> was fixed at 14.15 cm. Finally, the results revealed that increasing the mesh size of the trammel nets, especially the inner layer mesh, can lead to significant improvements in size selectivity and allow the protection of this valuable fish resource.</p></div>","PeriodicalId":46117,"journal":{"name":"Egyptian Journal of Aquatic Research","volume":"48 2","pages":"Pages 137-142"},"PeriodicalIF":3.5,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1687428522000206/pdfft?md5=6ebe8f221afef633ceaeeddbae0ffbbe&pid=1-s2.0-S1687428522000206-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80699728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Utilization of Caulerpa sp. as a feed ingredient for growth and survival of whiteleg shrimp and Chanos chanos in polyculture","authors":"Nasmia,&nbsp;Syahir Natsir,&nbsp;Rusaini,&nbsp;Akbar Marzuki Tahya,&nbsp;Jusri Nilawati,&nbsp;Siti Nurdjana Ismail","doi":"10.1016/j.ejar.2022.01.005","DOIUrl":"10.1016/j.ejar.2022.01.005","url":null,"abstract":"<div><p>The addition of seaweed <em>Caulerpa</em> sp. flour to the whiteleg shrimp and <em>Chanos chanos</em> feed is a viable alternative to lower the feed costs by reducing the usage of imported materials. The current study is planned to transform the seaweed into a feed material that is rich in nutrients and bioactive compounds that can boost whiteleg shrimp and <em>C. chanos</em> growth and survival. A completely randomized design is applied in the present study with four levels of <em>Caulerpa</em> sp. flour addition, each with 3 replications. The experimental animals used were juveniles of the whiteleg shrimp at a stocking density of 20 ind. tank⁻¹ and <em>C. chanos</em> of 0.89–1.18 g. ind^-1 at a stocking density of 10 ind. tank⁻¹, polycultured in 30-L aquaria for 30 days. The statistical analysis showed that the addition of <em>Caulerpa</em> sp. flour at different doses had significantly affected the specific growth rate of the <em>C. chanos</em> and the absolute growth of the whiteleg shrimp (P &lt; 0.05). The highest feed efficiency was achieved with the addition of 6% <em>Caulerpa</em> sp. flour (55.16% ± 0.09), whereas the lowest value was recorded in the treatment of no <em>Caulerpa</em> sp. flour addition (38.59% ± 2.02). The highest feed conversion ratio was obtained when no <em>Caulerpa</em> sp. flour was added (1.57) and the lowest value was recorded in the treatment of 6% <em>Caulerpa</em> sp. flour addition (1.20 ± 0.06).</p></div>","PeriodicalId":46117,"journal":{"name":"Egyptian Journal of Aquatic Research","volume":"48 2","pages":"Pages 175-180"},"PeriodicalIF":3.5,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S168742852200005X/pdfft?md5=e198333fef929bf763dfe95539182822&pid=1-s2.0-S168742852200005X-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84533242","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Morphometric and meristic characteristics of the first record Fistularia petimba (Lacepède, 1803) and Fistularia commersonii (Rüppell, 1838) (Piscès: Fistulariidae) from the Egyptian Mediterranean waters (West Alexandria)","authors":"Evelyn Ragheb","doi":"10.1016/j.ejar.2022.01.003","DOIUrl":"10.1016/j.ejar.2022.01.003","url":null,"abstract":"<div><p>In the present study, morphometric and meristic characteristics of the cornetfishes, <em>Fistularia</em> spp., from the Egyptian Mediterranean coast were described. The linear length-length relationships and the allometric growth pattern were also investigated. Specimens were sampled from October 2017 to March 2019, by trawling in the marine area along the west of Alexandria City. The data analysis showed that the red cornetfish, <em>Fistularia petimba</em> (Lacepède, 1803), which is one of the IUCN Red List, was observed in this zone for the first time. <em>Fistularia petimba</em> dorsal, anal, pectoral, ventral, and caudal fins formulas were defined as follows: D 15; A 15; P (I + 14); V (i + 5); and C 18. This fish species was characterized by, elongated bony plates that were present anteriorly and posteriorly to the dorsal fin with a number of 23 bony plates anterior to the dorsal fin with the absence of gill rakers. Arched lateral line and sharp spines were on the posterior ossifications. The body color was orange–brown on the upper side and white on the bottom with transparent fins and a touch of orange color on the tips. The bluespotted cornetfish, <em>Fistularia commersonii</em> (Rüppell, 1838) reached 107.5 cm in total length. Its fins formulas were as follows: D (13–17); A (12 – 18); P (I + 13) – (I + 15); V (i + 5); and C 18. The vertebrae count was between 84 and 88, including the urostyle that had the first 4 vertebrae fused and without bony plate or gill rakers. Arched lateral line and rows of blue spots or line appeared on the back. The body color varied from brownish to olive on the upper side and white on the bottom with transparent fins and a touch of rosy pink color on the tips. The linear regression equations for the different morphometric characters of <em>F. commersonii</em> were highly correlated (R² &gt; 0.90). The allometric coefficients (b) of the various morphometric characters of <em>F. commersonii</em> were also studied. Further studies on the biological and fisheries parameters are recommended for <em>F. commersonii</em> as well as following the presence and establishment of <em>F. petimba</em> in the Egyptian waters.</p></div>","PeriodicalId":46117,"journal":{"name":"Egyptian Journal of Aquatic Research","volume":"48 2","pages":"Pages 143-150"},"PeriodicalIF":3.5,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1687428522000036/pdfft?md5=aa1b29b3943148f14d830b11193d97bb&pid=1-s2.0-S1687428522000036-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85010869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"More evidences for the nutritional quality and future exploitation of the invasive crayfish Procambarus clarkii (Girard, 1852) from the River Nile, Egypt","authors":"Mahmoud M.S. Farrag ,&nbsp;Mennat-Allah M.A. El-Geddawy ,&nbsp;Zeinab S.A. Ahmed","doi":"10.1016/j.ejar.2022.01.001","DOIUrl":"10.1016/j.ejar.2022.01.001","url":null,"abstract":"<div><p>This study aimed to evaluate the nutritional quality with some food applications of the invasive <em>Procambarus clarkii</em> from the River Nile, Egypt. The moisture content was 75.75 ± 2.3% and crude protein on dry weight basis was estimated as 73.25 ± 4.1%. Essential amino acids were 0.529, 0.131, 0.181, 0.016 and 0.058 mg/g for isoleucine, leucine, lysine, methionine, and valine, respectively, whereas non-essential amino acids were 0.173 and 0.032 mg/g for tyrosine and cystine, respectively. A total of 15 fatty acids was detected [8 saturated fatty acids (SFAs) and 7 unsaturated fatty acids (USFA)], the major SFA was palmitic acid (C16:0; 26.63%), whereas the major USFA was oleic acid (C18:1n-9; 29.26%). Vitamins A, D, E, and K were 3181, 2, 175, and 1.7 mg/kg, respectively. Minerals were 937.7, 1639.1, 2171.6, and 0.01 mg/kg for Na, K, Mg, and I, respectively. Six heavy metals were monitored (mg/kg) 0.47, 0.32, 0.05, 81.31, 203.21, and 0.23 for Hg, Pb, Ca, Fe, Zn, and Ni, respectively. For food processing applications, the two products had acceptable levels for consumption in test panel responses. Moreover, <em>P. clarkii</em> should be considered for exploitation and recommended for further investigation as a potential raw material for the pharmaceutical industry and a new cheap animal protein source.</p></div>","PeriodicalId":46117,"journal":{"name":"Egyptian Journal of Aquatic Research","volume":"48 2","pages":"Pages 151-156"},"PeriodicalIF":3.5,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1687428522000012/pdfft?md5=c2d5e58c2f047104b18ce9d0df333331&pid=1-s2.0-S1687428522000012-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81876941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}