DOCSLIB.ORG

Reproductive System of Flower Crab, Charybdis

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text

Load more

Soundarapandian et al., 2:4 http://dx.doi.org/10.4172/scientificreports701 Open Access Open Access Scientific Reports Scientific Reports Research Article OpenOpen Access Access Reproductive System of Flower Crab, Charybdis feriata (Linnaeus) Soundarapandian P1*, Ilavarasan N2 and Varadharajan D1 1Faculty of Marine Sciences, Centre of Advanced Study in Marine Biology, Annamalai University, Parangipettai-Tamil Nadu, India 2Department of Zoology, Government Arts College, Karur, India Abstract Information about the reproductive biology of a crab species is important for the successful seed production in captivity. Hence the present study was aimed to investigate the male and female reproductive system of C. feriata. The male reproductive system of C. feriata composed of a pair of testes, a pair of vas differentia and a pair of ejaculatory ducts. The testes are connected with the vas deferens through a short small duct called vas efferens. The vas differentia has been divided into three distinct regions, based on the morphological and functional criteria: Anterior (AVD), Median (MVD) and Posterior (PVD) vas deferens. The developmental stages of male gonads include immature, maturing and matured. The gonadosomatic index of the male crab was increased from immature crabs (0.48) to matured crabs (0.79). The female reproductive system composed of a pair of ovaries, a pair of seminal receptacles (or) spermatheca and a pair of oviducts. The ovaries of C. feriata are categorized into five stages according to the size, colour and external morphology of the ovaries. They are immature, early maturing, late maturing, ripe and spent. The GSI in females were increased from immature crabs (1.95) to ripened crabs (3.97). Based on the change in colour, increase in the size and change in the shape of the berry eggs, three different stages (I, II & III) of egg development was observed. The fecundity of the female was found to be from 2, 83,963 to 9, 67,293 eggs in the animals had the carapace width of 10.6 to 14.1 cm. Keywords: Reproductive biology; Pair of testes; Pair of ovaries; Pair eggs were selected for egg counting (Fecundity). To estimate the of oviducts; C. feriata fecundity, pleopods bearing eggs were removed carefully and the weight of the whole egg mass (berry) was taken to the nearest 0.001 Introduction g, then four subsamples of berried eggs (0.1 g) were cut from different locations of the egg mass. Number of eggs in each four sub samples Berried females are important to start a commercial hatchery, but was counted with the help of counting tray under stereomicroscope. berried females are not available throughout the year from the wild. So Average no of eggs present in the samples was then calculated. In order the production of berried females in a controlled condition is essential. to find out the total weight of the egg mass, the eggs were removed from Before that once should know the morphology of the reproductive the pleopods and weight of the pleopods was taken.This was subtracted system and reproductive biology of a particular crab is important [1-3]. from the weight of the whole egg mass. Fecundity was then calculated Reproduction is the main mechanism to maintain species proliferation by the following formula [6]. and continuity [4,5]. The recognition of biological data about n reproduction is required for judicious management and exploitation of N = W × particular species resources. Hence in the present study an attempt has W been made on the various aspects of reproductive biology of the male Where W= total weight of the egg mass only; w=average weight of and female crabs of C. feriata, such as morphology of the reproductive the four egg samples; n = average number of eggs in the samples; N= tract, gonad development, gonado somatic index (GSI), size at maturity total number of eggs (Fecundity). and fecundity. Results Materials and Methods Morphology of the male reproductive system The crabs for the present study was collected from Parangipettai landing centre (Lat.11°29’N; Long.79°46’E) and brought to the The male reproductive system of C. feriata is bilaterally laboratory by using plastic container. The crabs were segregated as symmetrical creamy to whitish in colour, composed of a pair of testes, male and females. They were weighed individually and the size of the a pair of vas differentia and a pair of ejaculatory ducts internally and a carapace width was measured. Sexes were determined by examining pair of pleopods externally as accessory reproductive organs, present the abdominal morphology. The pleopods and gonopores were analyzed to find out the mating and extrusion of eggs. Presence of the eggs or egg remnants or their *Corresponding author: Soundarapandian P, Faculty of Marine Sciences, Centre of Advanced Study in Marine Biology, Annamalai University, absence on pleopods, colour of the egg mass was also noted. The Parangipettai-608 502, Tamil Nadu, India, Tel: 04144-243223; Fax: 04144- crabs were dissected to study the morphology of the reproductive 243553; E-mail: [email protected] tract and stages of maturation, size, weight, colour of the gonads and Received March 18, 2012; Published May 27, 2013 gonadosomatic index (GSI).The dissected gonads were measured to Citation: Soundarapandian P, Ilavarasan N, Varadharajan D (2013) Reproductive the nearest 0.001g by using the electronic balance and subsequently System of Flower Crab, Charybdis feriata (Linnaeus). 2: 701 doi:10.4172/ gonadosomatic index was calculated by the following formula. scientificreports.701 Wet weight of the gonad GSI = x 100 Copyright: © 2013 Soundarapandian P, et al. This is an open-access article Wet weight of the animal distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided Recently spawned females with bright yellow or orange coloured the original author and source are credited. Volume 2 • Issue 4 • 2013 Citation: Soundarapandian P, Ilavarasan N, Varadharajan D (2013) Reproductive System of Flower Crab, Charybdis feriata (Linnaeus). 2: 701 doi:10.4172/scientificreports.701 Page 2 of 7 on the inner side of the abdominal flab. The testes are flat and highly differentia becoming enlarged middle and posterior vas differentia coiled roughly in the form of “H” located on the dorsal portion of straight and opaque extending to both the side of the heart. the hepatopancreas sandwiched between the hepatopancreas and the hypodermis of the carapace, and continuing laterally to the stomach Matured: Testes showed further enlargement as vas differentia are upto vas deferens.Just before the posterior stomach and anterior to the coiled and very much swollen occupying full body cavity. The AVD heart the left and right testis are bridged by a commissure. and MVD are enlarged and milky white in colour, PVD enlarged and convoluted but still opaque. Gonads of males measuring above 10.5 cm The testes are connected with the vas deferens through a short small duct called vas efferens. Vas differentia is a pair of elongated and coiled carapace width are in mature stage. tubules which extend longitudinally from the posterior testes upto Gonadosomatic Index (GSI) in male crabs the posterior region of the body. The vas differentia has been divided into three distinct regions, based on the morphological and functional The Gonadosomatic index of the male and female crabs was studied criteria: Anterior (AVD), Median (MVD) and Posterior (PVD) vas according to the size and weight of the crab. The GSI of the male crab deferens. The AVD are white, tightly coiled and lying on either side (0.48) was increased from immature crabs to matured crabs (0.79).The of the median line of cephalothorax posterior to the dorsal part of the size of the animals was ranging between 8.0 – 8.5 cm carapace width to stomach. The coils of the AVD increase in size posterio-ventrally and 14.1–14.5 cm carapace width (Table 1). lead into the middle vas deferens, which are milky-white meandering tubules of a higher caliber than both the testes and AVD. The posterior Morphology of the female reproductive tract vas deferens are whitish in colour arises from the posterior end of The female reproductive system composed of a pair of ovaries, a the median vas deferens, which are massive for its proximal part, but gradually narrow before opening to the ejaculatory duct.Each posterior pair of seminal receptacles (or) spermatheca and a pair of oviducts VD is connected with an ejaculatory duct, which is a smooth narrow (open to the exterior through the female genital opening situated on duct extending between the musculature of the swimming peddles. the left and right sternites of sixth thoracic segment).The oviducts The ejaculatory duct leads into the slender weak tube like genital pass ventrally from the seminal receptacle.The ovary is surrounded papilla (or) penis, which are located at the base of the swimming legs. by a fibrous connective tissue which separates the ovary from the Each penis passes into the two pairs of abdominal appendages called surrounding hemocoel.The ovary is roughly in the form of a 'H' and lies pleopods (or) gonopods situated in the inner side of the abdominal on top of the hepatopancreas extending on both sides along the anterior flab. The first pleopod is made up of two segments, the basal one is margin of the cephalothorax is called anterior horns. The ovaries run in broad to the sternal wall and the terminal one is long tube-like and posterior cardial direction to the cardiac stomach and just posterior to tapering towards the tip, which is actually inserted into the seminal the stomach, anterior horns are joined by a commissure.The posterior receptacle of the female during copulation.
Recommended publications
  • Analysis of Fishery and Stock of the Portunid Crab, Charybdis Feriata (Linnaeus, 1758) from Veraval Waters, North-West Coast of India

    Analysis of Fishery and Stock of the Portunid Crab, Charybdis Feriata (Linnaeus, 1758) from Veraval Waters, North-West Coast of India

    Indian J. Fish., 61(4) : 1-9, 2014 1 Analysis of fishery and stock of the portunid crab, Charybdis feriata (Linnaeus, 1758) from Veraval waters, north-west coast of India GYANARANJAN DASH, SWATIPRIYANKA SEN, K. MOHAMMED KOYA, K. R. SREENATH R. THANGAVELU, SURESH KUMAR MOJJADA AND M. S. ZALA Veraval Regional Centre of Central Marine Fisheries Research Institute, Matsya Bhavan, Bhidia, Veraval - 362 269 Gujarat, India e-mail: [email protected] ABSTRACT Fishery and stock characteristics of the portunid cab Charybdis feriata from the waters off the north-west coast of India was studied based on commercial trawl landings at Veraval during 2009-2011. Growth parameters L∞, K and -1 -1 t0 were estimated as 171.5 mm, 0.97 yr and -0.10 yr respectively. Mortality parameters Z, M and F were 3.97 yr , -1 -1 1.49 yr and 2.48 yr respectively. The length at capture (L50) and length at maturity (LM50) were 95.4 mm and 87.3 mm, respectively which indicates that crabs enter into peak exploitation phase after attaining sexual maturity. The bio-economic stock assessment model showed that the species can be exploited at the present fishing level to maintain the economy of the fishery at maximum level (MEY) or the effort can be increased by 2.4 times to maximise the yield (MSY) depending upon the management objective. However, since the stock recruitment relationship is not defined, as a precautionary approach, the effort should not be increased more than 1.3 times the present level to conserve the spawning stock. Keywords: Charybdis feriata, Fisheries management, Management reference point, Spawning stock biomass, Stock assessment Introduction the important edible marine crab resources of India.
  • Charybdis Hellerii Global Invasive

    Charybdis Hellerii Global Invasive

    FULL ACCOUNT FOR: Charybdis hellerii Charybdis hellerii System: Marine_terrestrial Kingdom Phylum Class Order Family Animalia Arthropoda Malacostraca Decapoda Portunidae Common name Indo-Pacific swimming crab (English), spiny hands (English), Ishigani New Caledonia (Japanese), New Caledonia-íshigani (Japanese) Synonym Goniosoma hellerii , (A. Milne-Edwards, 1867) Goniosoma merguiense , (DeMan, 1888) Charybdis merguiensis , (Sakai, 1934; Barnard, 1950; Guinot, 1962) Charybdis (Goniosoma) merguiense , (Alcock, 1899; Nobili, 1906, Chopra, 1935; Leene, 1973; Shen, 1937) Goniosoma sexdentatum , (De Man, 1879) Charybdis amboinensis , (Leene, 1938) Goniosoma spiniferum Charybdis vannamei , Ward 1941 Similar species Summary Charybdis hellerii is an Indo-Pacific, portunid crab that has invaded several locations in the Mediterranean Sea, by Erythrean invasion through the Suez Canal, and the South Atlantic in the Caribbean and United States via ballast water fouling. Charybdis hellerii is a potential threat to native crab populations and benthic communities and its introduction should be avoided by adhering to ballast water management guidelines. view this species on IUCN Red List Species Description Charybdis hellerii is a small crab measuring from about 5-8 cm wide. It is dark green with a light purple on the upper inner surface of palm and dark purple on dorsal surfaces of distal 4 segments of walking and swimming legs. The carapace has pale green to whitish areas on frontal, hepatic, and epibranchial regions. It is most easily identifiable by the spine on the posterior of the carpus on the fifth leg which bears its chela, or claws giving it one of its common names: spiny hands. Its dorsal carapace is naked and its anterolateral margin has 6 prominent black-tipped teeth.
  • Notes on the Behaviour of the Portunid Crab Charybdis Longicollis Leene Parasitized by the Rhizocephalan Heteros&Ccas Dollfa

    Notes on the Behaviour of the Portunid Crab Charybdis Longicollis Leene Parasitized by the Rhizocephalan Heteros&Ccas Dollfa

    JounNnr op Narunal Hrsronr 1998.32. 15ll 1585 Notes on the behaviour of the portunid crab Charybdis longicollis Leene parasitized by the rhizocephalan Heteros&ccasdollfasi Boschma G. INNOCENTIT, M. VANNINIT and B. S. GALTLI 'La I Museo Zoologico Specola', (Jniversitd di Firenze, via Romctna 17, 50125 Firenze, Italy f Israel Oceanographic and Limnological Research, P.O. Box 8030, HaiJa 31080, Israel (Accepted8 May 1998) A significant portion of the population of Charybdis longicollis (Decapoda: Portunidae) along the Mediterranean coast of Israel is parasitized by the rhizo- cephalan Heterosaccusdollfusi. The behaviour of the parasitized crabs, in different stages of infection, is examined and compared with the behaviour of non- parasitized crabs. Locomotion, rest, body-, egg- and parasite-grooming,digging and burying, courtship and mating are described qualitatively and analysed quantitatively under standardized conditions. Behaviour patterns of parasitized crabs lacking externae,either immature or scarred,were similar to those of non- parasitized crabs. The presenceof externae was observedto modify digging and to inhibit burying behaviour. The presenceof externae induces an imitation of egg-grooming behaviour pattern in both males and females. Exlernae-bearing crabs engagedin parasite-groomingmore intensely than ovigerous crabs in egg- grooming. Ksvwono s: Charyhdis, H et er osac cus, Rhizocephala, parasitism, behaviour. Introduction The lessepsian portunid crab Charybdis longicollis Leene is one of the most common decapods along the Mediterranean coast of Israel, where it was first recorded about 40 years ago (Lewinsohn and Holthuis, 1964). Since 1993, it has been parasitized by the rhizocephalan Heterosaccusdollfusi Boschma, a lessepsian migrant too (Galil and Litzen, 1995). H. dollfusi penetrates through the gills of young C.
  • Lady Crab Charybdis Japonica (A. Milne-Edwards, 1861) Crustacea: Decapoda: Brachyura: Portunidae Status Exotic (Intercepted in Australia)

    Lady Crab Charybdis Japonica (A. Milne-Edwards, 1861) Crustacea: Decapoda: Brachyura: Portunidae Status Exotic (Intercepted in Australia)

    PaDIL - Fact Sheet Page 1 of 4 Lady Crab Charybdis japonica (A. Milne-Edwards, 1861) Crustacea: Decapoda: Brachyura: Portunidae Status Exotic (intercepted in Australia) Other Common Names None Listed Scientific Synonyms None Listed Host Types Marine Distribution - Regions Australasian - Oceanian South and South-East Asia Distribution - Notes A single mature male specimen was found in the Port River Adelaide, by a recreational fisher in 2000. A three day search by fisheries officiers found no additional specimens (Poore, 2004). Diagnostic Characters: Description: carapace hexagonal and pilose; chela propodus with 5 spines on upper surface (including spine at carpus articulation; Size: to 80 mm wide. Broad Sweep Marine Commodity Marine Specifics Specimen Contact Point [email protected] Name Gary Poore Web links None Listed http://www.padil.gov.au/viewPest.aspx?id=1167 13/06/2008 PaDIL - Fact Sheet Page 2 of 4 Padil links swimmer crab References Poore, G. C. B. (2004) Marine decapod Crustacea of southern Australia. A guide to identification (with chapter on Stomatopoda by Shane Ahyong). Melbourne: CSIRO Publishing. Acknowledgements Citation Dane, E. & Poore, G.C.B. (2008) Lady Crab (Charybdis japonica) Pest and Diseases Image Library. Updated on 12/06/2008 1:05:01 PM. Available online: http://www.padil.gov.au Last Updated 12/06/2008 1:05:01 PM Diagnostic Images Anterior body appendages Caption: Photo of inner claw showing spines Source: Peter Davie, Queensland Museum http://www.padil.gov.au/viewPest.aspx?id=1167 13/06/2008 PaDIL - Fact Sheet Page 3 of 4 carapace Caption: Partial drawing of carapace Source: Gary Poore, Museum Victoria Overview Images http://www.padil.gov.au/viewPest.aspx?id=1167 13/06/2008 PaDIL - Fact Sheet Page 4 of 4 Dorsal Caption: Photo of preserved specimen from Adelaide, Australia Source: Peter Davie, Queensland Museum Full size images available at http://www.padil.gov.au.
  • In Vietnam Gioáng Gheï Charybdis

    In Vietnam Gioáng Gheï Charybdis

    The genus Charybdis (Crustacea: Portunidae) in Viet Nam Item Type Journal Contribution Authors Nguyen, Van Chung Download date 26/09/2021 22:50:28 Link to Item http://hdl.handle.net/1834/9267 Collection of Marine Research Works, 2002, XII: 167-178 THE GENUS CHARYBDIS (CRUSTACEA: PORTUNIDAE) IN VIETNAM Nguyen Van Chung Institute of Oceanography (Nha Trang) ABSTRACT 14 species of Charybdis were determinated in Vietnamese coastal waters, including two new records, all species were described, identified by key and illustrated on pictures. GIOÁNG GHEÏ CHARYBDIS (CRUSTACEA: PORTUNIDAE) ÔÛ VIEÄT NAM Nguyeãn Vaên Chung Vieän Haûi Döông Hoïc (Nha Trang) TOÙM TAÉT Baøi baùo ñaõ ñöa ra 14 loaøi thuoäc gioáng gheï Charybdis, hoï cua Bôi (Portunidae) ôû Vieät Nam, bao goàm 2 loaøi môùi boå sung cho khu heä cua bieån Vieät Nam. Moãi loaøi ñeàu ñöôïc ñònh teân khoa hoïc, moâ taû hình thaùi, phaân boá, hình veõ vaø khoùa xaùc ñònh loaøi. I. INTRODUCTION II. MATERIALS AND METHODS The genus Charybdis de Haan, All specimens concerned in this 1833, which is considered after paper were collected from the surveys Thalamita because of their close of Marine Study Program conducted in relationship (Stephenson and Hudson, the coastal provinces of Vietnam in the 1957), has been monographed by Leen periof of 1970 - 2001 and deposited at (1938). the Oceanographic Museum and the In Vietnam, there have been very Depart. of Aquaculture Biotechnology of few studies on Charybdis. The studies the Institute of Oceanography (IO) in of Serene (1937), Dawydoff C. (1952), Nha Trang and the Museum of Hai Starobogatov (1972), N.
  • Systema Brachyurorum: Part I

    Systema Brachyurorum: Part I

    THE RAFFLES BULLETIN OF ZOOLOGY 2008 17: 1–286 Date of Publication: 31 Jan.2008 © National University of Singapore SYSTEMA BRACHYURORUM: PART I. AN ANNOTATED CHECKLIST OF EXTANT BRACHYURAN CRABS OF THE WORLD Peter K. L. Ng Raffles Museum of Biodiversity Research, Department of Biological Sciences, National University of Singapore, Kent Ridge, Singapore 119260, Republic of Singapore Email: [email protected] Danièle Guinot Muséum national d'Histoire naturelle, Département Milieux et peuplements aquatiques, 61 rue Buffon, 75005 Paris, France Email: [email protected] Peter J. F. Davie Queensland Museum, PO Box 3300, South Brisbane, Queensland, Australia Email: [email protected] ABSTRACT. – An annotated checklist of the extant brachyuran crabs of the world is presented for the first time. Over 10,500 names are treated including 6,793 valid species and subspecies (with 1,907 primary synonyms), 1,271 genera and subgenera (with 393 primary synonyms), 93 families and 38 superfamilies. Nomenclatural and taxonomic problems are reviewed in detail, and many resolved. Detailed notes and references are provided where necessary. The constitution of a large number of families and superfamilies is discussed in detail, with the positions of some taxa rearranged in an attempt to form a stable base for future taxonomic studies. This is the first time the nomenclature of any large group of decapod crustaceans has been examined in such detail. KEY WORDS. – Annotated checklist, crabs of the world, Brachyura, systematics, nomenclature. CONTENTS Preamble .................................................................................. 3 Family Cymonomidae .......................................... 32 Caveats and acknowledgements ............................................... 5 Family Phyllotymolinidae .................................... 32 Introduction .............................................................................. 6 Superfamily DROMIOIDEA ..................................... 33 The higher classification of the Brachyura ........................
  • Portunidae 1115

    Portunidae 1115

    click for previous page Portunidae 1115 Portunidae PORTUNIDAE Swimming crabs iagnostic characters: Carapace hexagonal, transversely ovate to transversely hexagonal,some- Dtimes circular; dorsal surface relatively flat to gently convex, usually ridged or granulose; front broad, margin usually multidentate; usually 5 to 9 teeth on each anterolateral margin, posterolateral margins usually distinctly converging.Endopodite of second maxillipeds with strongly developed lobe on inner margin. Legs laterally flattened to varying degrees, last 2 segments of last pair paddle-like. Male abdominal segments 3 to 5 completely fused, immovable. anterolateral margin with 5-9 teeth 5 segments 4 3-5 fused, immovable 3 male abdomen sedments 3-5 immovable male abdomen last pair of legs paddle-like Habitat, biology, and fisheries: Benthic to semipelagic crabs with diverse habits. Many species of great fishery value, notably Scylla serrata, Portunus pelagicus, P. sanguinolentus, P. trituberculatus, and Charybdis feriatus. Similar families occurring in the area Portunids may be confused with spanner crabs (Raninidae) and moon crabs (Calappidae: Matutinae), which also possess paddle-like legs. They can be separated from portunids as follows: Raninidae: carapace usually longitudinally ovate; sternum very narrow; fingers of chela strongly bent; meri of third maxillipeds triangular (quadrate in portunids). Calappidae (subfamily Matutinae): carapace circular to subcircular; at least last 3 pairs of legs paddle-like, (not only the last pair); meri of third maxillipeds triangular in cross-section (quadrate in portunids). fingers strongly bent Calappidae (subfamily Matutinae) carapace all legs longitudinally ovate paddle-like Raninidae 1116 Crabs Key to species of interest to fisheries occurring in the area 1a. Carapace with 2 anterolateral teeth; eyes very long, reaching lateral edge of carapace (Fig.
  • Crustacea : Portunidae) Collected by Thenaga Expedition by W

    Crustacea : Portunidae) Collected by Thenaga Expedition by W

    NAGA REPORT Volume 4, Part 1 Scientific Results of Marine Investigations of the South China Sea and the Gulf of Thailand 1959-1961 Sponsored by South Viet Natll, Thailand and the United States of Atnerica The University of California Scripps Institution of Oceanography La Jolla, California 1967 EDITORS: EDWARD BRINTON, MILNER B. SCHAEFER, WARREN S. WOOSTER ASSISTANT EDITOR: VIRGINIA A. WYLLIE Editorial Advisors: Jorgen Knu·dsen (Denmark) James L. Faughn (USA) Le van Thoi (Viet Nam) Boon Indrambarya (Thailand) Raoul Serene (UNESCO) Printing of this volume was made possible through the support of the National Science Foundation. The NAGA Expedition was supported by the International Cooperation Administration Contract ICAc-1085. ARTS & CRAFTS PRESS, SAN DIEGO, CALIFORNIA CONTENTS The portunid crabs (Crustacea : Portunidae) collected by theNAGA Expedition by W. Stephenson ------ 4 Gammaridean Amphipoda from the South China Sea by Marilyn Clark Inlbach ---------------- 39 3 THE PORTUNID CRABS (CRUSTACEA: PORTUNIDAE) COLLECTED BY THE NAGA EXPEDITION by w. STEPHENSON* * Senior Foreign Science Fellow of the National Science Foundation, Hancock Foundation, Univer­ sity of Southern California, and Professor of Zoology, University of Queensland, Brisbane, Australia. THE PORTUNID CRABS ( CRUSTACEA : PORTUNIDAE) CONTENTS Systematics ­ - - - - - 7 Literature - ----- 23 Plates 29 Appendix ------ 36 5 INTRODUCTION Although the collections of NAGA Expedition are small and contain many well-known and widely distributed species of the Indo-West Pacific area, they also contain several little-known forms (e.g. Charybdis edwardsi Leene and Buitendijk, Portunus minutus [ShenJ and P. tweediei [ShenJ) and two new species. A few additional Indo-West Pacific Specimens from the col­ lections of the Scripps Institution, other than NAGA material, are included in the present report.
  • Discovery of an Alien Crab, Scylla Serrata (Forsskål, 1775) (Crustacea: Decapoda: Portunidae), from the Caribbean Coast of Colombia

    Discovery of an Alien Crab, Scylla Serrata (Forsskål, 1775) (Crustacea: Decapoda: Portunidae), from the Caribbean Coast of Colombia

    BioInvasions Records (2013) Volume 2, Issue 4: 311–315 Open Access doi: http://dx.doi.org/10.3391/bir.2013.2.4.08 © 2013 The Author(s). Journal compilation © 2013 REABIC Rapid Communication Discovery of an alien crab, Scylla serrata (Forsskål, 1775) (Crustacea: Decapoda: Portunidae), from the Caribbean coast of Colombia Rafael Lemaitre1*, Néstor H. Campos2, Efraín A. Viloria Maestre3 and Amanda M. Windsor1 1 Department of Invertebrate Zoology, National Museum of Natural History, Smithsonian Institution, 4210 Silver Hill Road, Suitland, MD 20746 USA 2 Sede Caribe, Universidad Nacional de Colombia, c/o INVEMAR, Calle 25 # 2 - 55, Rodadero sur, Playa Salguero, Santa Marta, Colombia 3 Efraín A. Viloria Maestre, Programa Valoración y Aprovechamiento de Recursos Marinos, INVEMAR, Calle 25 # 2 - 55, Rodadero sur, Playa Salguero, Santa Marta, Colombia E-mail: [email protected] (RL), [email protected] (NHC), [email protected] (EAVM), [email protected] (AMW) *Corresponding author Received: 13 September 2013 / Accepted: 14 November 2013 / Published online: 19 November 2013 Handling editor: Vadim Panov Abstract A specimen of the swimming crab Scylla serrata, a species native to the tropical Indo-West and South Pacific, is reported from Cartagena Bay, Colombia, in the southern Caribbean. It is the third alien decapod crustacean documented from the Caribbean coast of Colombia. Analyses of genetic sequences points to a northern Indian Ocean origin of this specimen. Presence of this specimen is considered an isolated case, most likely kept alive for human consumption on board ship and discarded in the Bay. Key words: Scylla serrata; “giant mud crab”; alien marine species; Crustacea; Brachyura; Indo-West Pacific; western Atlantic; southern Caribbean; Colombia Introduction was collected in the Bay of Bengal, Indian Ocean, from a depth of 82 m.
  • Public Engagement for the Detection of the Introduced Marine Species Charybdis Japonica in Western Australia

    Public Engagement for the Detection of the Introduced Marine Species Charybdis Japonica in Western Australia

    Management of Biological Invasions (2015) Volume 6, Issue 3: 243–252 doi: http://dx.doi.org/10.3391/mbi.2015.6.3.03 Open Access © 2015 The Author(s). Journal compilation © 2015 REABIC Research Article Public engagement for the detection of the introduced marine species Charybdis japonica in Western Australia Mathew Hourston*, Justin I. McDonald and Matthew J. Hewitt Department of Fisheries, Western Australia, PO Box 20, North Beach W.A. 6020, Australia E-mail: [email protected] (MH), [email protected] (JIM), [email protected] (MJH) *Corresponding author Received: 29 October 2014 / Accepted: 10 March 2015 / Published online: 8 April 2015 Handling editor: Vadim Panov Abstract The introduced crab, Charybdis japonica, was captured in the Swan River Estuary in Western Australia during October 2012. This constitutes the second documented report of this species in Western Australia after a single specimen was reported in 2010 from a nearby estuary. Given the invasive history of this species in locations such as New Zealand, a rapid-response delimiting survey was conducted to assess the prevalence of this crab within this estuary. A large public engagement campaign was run concurrently with the delimiting survey to inform and enlist the recreational crab fishers that use the Swan River and other nearby estuaries to report any more specimens that they caught. These activities yielded a total of three specimens, all handed in by recreational fishers as a result of the public engagement campaign. All three specimens were caught within a very limited area within the estuary, approximately 8 kilometres from the entrance.
  • New Record of Color Morphs of Brachyuran Crab Charybdis Annulata Fabricius, 1798 (Decapoda: Portunidae)

    New Record of Color Morphs of Brachyuran Crab Charybdis Annulata Fabricius, 1798 (Decapoda: Portunidae)

    Arthropods, 2012, 1(4):129-135 Article New record of color morphs of brachyuran crab Charybdis annulata Fabricius, 1798 (Decapoda: Portunidae) J. N. Trivedi, K. D. Vachhrajani Division of Environment and Toxicology, Department of Zoology, Faculty of Science, The Maharaja Sayajirao University of Baroda, Vadodara, Gujarat, India E-mail: [email protected] Received 31 August 2012; Accepted 3 October 2012; Published online 1 December 2012 IAEES Abstract Charybdis annulata (Fabricius, 1798) is a common portunid crab species found on rocky shore habitat. It mostly prefers coral reef and algal assemblage area as living and foraging habitats. During the study on brachyuran crab diversity of Saurashtra coast, Gujarat, India, we came across the presence of color polymorphism in the species. Total 62 specimens were collected from the field and two color morphs- orange morph and brown morph were identified. The differences in the morphological characteristic were recorded properly on the basis of detail observation of both the morphs. The orange morph shows specific micro habitat preference while the brown morph utilizes wide range of micro habitats. Keywords polymorphism; Charybdis annulata; brachyuran crab; rocky shore; Saurashtra coast. 1 Introduction Polymorphism or color variation in different individuals of the same species is the common phenomenon observed in many invertebrates, especially in mollusks and arthropods like butterflies, spiders etc. (Wicksten, 1989). A color change is employed by many animals in the form of crypsis as survival strategy because it decreases predation risk (Endler, 1991; Bonte and Maelfait, 2004). Factors like geographic isolation of population, predation risk, age, diet, infection by pathogens and genetic inheritance play significant role in occurrence of color morphs in species (Oetinger and Nichol, 1982; Jormalainen and Tuomi, 1989).
  • Survey, Morphometric and Molecular Analysis of Marine Crab Charybd Is Feriatus (Linnaeus, 1758) from Southeast Coast of India

    Survey, Morphometric and Molecular Analysis of Marine Crab Charybd Is Feriatus (Linnaeus, 1758) from Southeast Coast of India

    Journal of Zoological Research Volume 2, Issue 2, 2018, PP 15-23 ISSN 2637-5575 Survey, Morphometric and Molecular Analysis of Marine Crab Charybd is Feriatus (Linnaeus, 1758) from Southeast Coast of India a, b Murali Shankar Anaiappan *, Thiruvarasu Soundarrajan , Henciya Santhaseelanc, Jaganathan Kamalesh a, Soundarapandian Peyila a Center of Advanced Study in Marine Biology, Annamalai University, Parangipettai, Tamilnadu, India. b Department of Fisheries and Oceanography, Kerala University of Fisheries and Ocean Studies, Panangad, Kochi, Kerala, India. c Department of Marine science, Bharathidasan university, Trichirapalli, Tamilnadu, India. *Corresponding Author: Murali Shankar Anaiappan, Center of Advanced Study in Marine Biology, Annamalai University, Parangipettai, Tamilnadu, India. ABSTRACT In population studies, Morphometric and molecular investigation provides a powerful complement to environmental and genetic stock identification approach and length-weight relationships allow the conversion of growth-in-length equations to growth-in-weight for use to a stock assessment. The survey of C. feriatus were made in eight landing centers, viz., Annankoil, Mudasalodai, Arukkattuthurai, Muthupettai, Mallipattinam, Sethubavchatram, Manamelkudi and Jegathapattinam, Southeast coast of India. Whereas other study animals were collect only from Annankoil(Lat.11°24′ N; Long. 79°464′ E). In general, male crab landings contributions were highest followed by females irrespective of the stations of the current study. C. feriatus males showed to undertake positive allometric growth at value of „b‟ being 3.06. C. feriatus females showed to undergo negative allometric growth in „b‟ value of 2.89. The COX1 Sequenced nucleotide regions were deposit in GenBank under the accession number KR186011. The present tree topology clearly shows that the C.