Int. J. Biosci.20(6), 1-10, June 2022
There is a paucity of information concerning diminutive gobies in the Philippines. Sexual dimorphism in Celebes goby Glossogobius celebius (Valenciennes, 1837) was described based on the external morphology of the specimens from Orani river systems, Bataan, Philippines. The mean body size of females was larger than males but not significantly different (p > 0.05). The principal component analysis identified the longer snout-to-2nd dorsal fin length, snout-to-anal fin length, and deeper body of females, while males have longer median fins (anal fin and 2nd dorsal fin). Multivariate analysis of variance examined significant variation among and between the sex and maturity groups (Pillai trace = 1.52, F= 13.98, p < 0.001). In canonical variate analysis, a significant morphological deviation between immature and mature specimens is primarily explained by more posteriorly-located anal fin and 2nd dorsal fin, and longer 2nd dorsal fin by the latter. Moreover, the difference between sexes of mature specimens was evident in males having a more elongated 2nd dorsal fin. The observed variation can be attributed to developmental priorities (maturation-related morphology) and the health status of the specimens. Both sexes displayed statistically isometric growth rate (male b = 2.99; female b = 3.03). The relative condition factor (K) was closed to a K-value of 1.00, indicating a state of well-being for the collected fish specimens.
Alcabedos RM, Dela Viña CB, Reyes RC, Laude RP. 2017. Genetic diversity within and among natural populations of five gobies based on cytogenetic and isozyme analyses. Philippine Science Letters 10(1), 58–71.
Ardestani G, Rogelio DR, Reyes RC, Laude RP. 2014. Genetic diversity of two Philippine native freshwater goby species (Perciformes: Gobiidae): implications for conservation. Aquatic Conservation Marine and Freshwater Ecosystems 24(5), 592–600. http://dx.doi.org/10.1002/aqc.2462
Aya FA, Corpuz MNC, Laron MA, Garcia LBM. 2017. Larval and early juvenile development of silver therapon, Leiopotherapon plumbeus (Actinopterygii: Perciformes: Terapontidae), reared in mesocosms. Acta Ichthyologica et Piscatoria 47(4), 347–356. http://dx.doi.org/10.3750/AIEP/02222
Blanco GJ. 1956. Assay of the goby fry (ipon) fisheries of the Laoag River and its adjacent marine shores, Ilocos Norte Province. Philippine Journal of Fisheries 4, 31–80.
Charlebois PM, Marsden JE, Goettel RG, Wolfe RK, Jude DJ, Rudnika S. 1997. The round goby Neogobius melanostomus (Pallas). A review of European and North American Literature. Illinois-Indiana Sea Grant Program and Illinois Natural History Survey. INHS Special Publications. Champaign, IL. 20, 76.
Corpuz MNC. 2011. Morphological variations, sexual dimorphism, and gonadal analysis of populations of the Celebes Goby, Glossogobius celebius (Perciformes: Gobiidae) from Southern Luzon, Philippines. MSc thesis, University of the Philippines Los Baños, College, Laguna, Philippines. (Available at the UPLB Library). http://dx.doi.org/10.13140/RG.2.2.22326.96321
Corpuz MN, Camacho MV, Ocampo PP. 2013. Morphometric and morphomeristic variations in five populations of indigenous Celebes goby Glossogobius celebius (Perciformes: Gobiidae) from southern Luzon, Philippines. The Philippine Agricultural Scientist 96(1), 75–85. http://dx.doi.org/10.1111/j.1095-8649.2009.02314.x
Corpuz MNC, Paller VGV, Ocampo PP. 2015. Environmental variables structuring the stream gobioid assemblages in the three protected areas in southern Luzon, Philippines. Raffles Bulletin of Zoology 63, 357–365.
Corpuz MNC, Paller VGV, Ocampo PP. 2015. Ichthyofaunal survey in selected freshwater habitats in Camarines Sur, Philippines. Asian Journal of Biodiversity 6, 80–99. http://dx.doi.org/10.7828/ajob.v6i1.696
Corpuz MNC, Paller VGV, Ocampo PP. 2016. Diversity and distribution of freshwater fish assemblages in Lake Taal River system in Batangas, Philippines. Journal of Environmental Science and Management 19(1), 85–95. http://dx.doi.org/10.47125/jesam/2016_1/09
De Leon KJA, Manliclic ADC, Corpuz MNC. 2017. Spatial and sexual variation on morphometrics, length and weight, and condition factor dynamics of endemic silver therapon (Leiopotherapon plumbeus, Kner). International Journal of Agricultural Technology 13(7), 1567–1577.
Elliot NG, Haskard K, Koslow JA. 1995. Morphometric analysis of orange roughy (Haplostethus atlanticus) off the continental slope of southern Australia. Journal of Fish Biology 46, 202–220. http://dx.doi.org/10.1111/j.10958649.1995.tb05962.
Froese R, Pauly D. 2018. FishBase. World Wide Web electronic publication. Available at: http://www.fishbase.org, Accessed date: 20 August 2018.
Hammer O, Harper DAT, Ryan PD. 2001. PAST: Paleontological Statistics software package for education and data analysis. Palaeo Electronica 4, 1–9.
Herre AH, ed. 1927 Gobies of the Philippines and the China Sea. Monograph Bureau of Science Manila. Bureau of Printing, Manila. 352.
Islam MN. 2004. Eco-biology of freshwater gobi, Glossogobius giuris (Hamilton) of the River Padma in relation to its fishery: a review. Journal of Biological Sciences 4, 780–793. http://dx.doi.org/10.3923/jbs.2004.780.793
Jones JC, Reynolds JD. 1999. Costs of egg ventilation for male common gobies breeding in conditions of low dissolved oxygen. Animal Behavior 57, 181–188. http://dx.doi.org/10.1006/anbe.1998.0939
Le Cren ED. 1951. The length–weight relationships and seasonal cycle in gonad weight and condition in the perch (Perca fluviatilis). Journal of Animal Ecology 20, 201–219. http://dx.doi.org/10.2307/1540
Mashiko K, Yamane S. 1993. Sexual dimorphism in the goby Tridentiger kuroiwae brevispinis. Japan Journal of Ichthyology 40, 363–368.
Miller PJ. 1984. The tokology of gobioid fishes. In Fish Reproduction Strategies and Tactics. Academic Press, London. Edited by Potts GW, Wootton RJ. 119–153.
Paller VV, Ocampo PP, Corpuz MNC. 2011. Fish Ark Philippines: direction for the conservation of native and endemic Philippine Freshwater Fishes Project 1: Survey of diminutive freshwater fishes indigenous to isolated crater lakes, mountain crater lakes, mountain streams and cataracts in Southern Luzon, Philippines. Accessed date: December 2018. http://agris.fao.org/agrissearch/search.do?recordID=PH2012000274.
Rabadon MLL Corpuz MNC. 2021. Multivariate analyses of selected hydro-bacterial variables along the longitudinal gradient of Orani River, Philippines. IOP Conference Series Earth and Environmental Science 798(1), 012004.1. http://dx.doi.org/10.1088/1755-1315/798/1/012004
Ricker WE. 1973. Linear regressions in fishery research. Journal of Fisheries Research Board of Canada 30, 409–434. http://dx.doi.org/10.1139/f73-072
Romero CS, Villaflor KC, Dela Rosa D, Corpuz MNC. 2016. Environmental variables affecting the riverine ichthyofaunas and macroinvertebrate communities in Orani river systems (Tala-Silahis continuum), Bataan, Philippines. 2nd International Conference in Research, Education, Management, and the Social Sciences, Harbour Hotel, Canal Road, Subic Bay Freeport Zone, Zambales p 31-48.
Santos DA, Manliclic ADC, Corpuz MNC. 2020. Length-weight relationship and condition factor of silver therapon, Leiopotherapon plumbeus (Terapontidae) from two brackishwater habitats. AACL Bioflux 13(2), 1495–1503.
Silva MN, Gordo LS. 1997. Age, growth and reproduction of the black goby, Gobius niger from Obidos Lagoon, Portugal. Cahiers de Biologue Marine 38, 175–180.
Susatyo P, Setyaningrum N, Winarni E, Chasanah T, Atang T. 2018. Reproduction characteristics of ricefield eel (Monopterus albus Zuieuw) on several functionally changed lands in Banyumas Regency. Journal of Tropical Life Science 8(2), 177–186. http://dx.doi.org/10.11594/jtls.08.02.12
Tesch FW. 1971. Age and growth. In: Methods for Assessment of Fish Production in Fresh Waters. Blackwell Scientific Publications, Oxford. Edited by Ricker E. 99–130.