Molluscan diversity in the mangrove ecosystem of Mumbai, west coast of India

Accepted Manuscript Molluscan diversity in the mangrove ecosystem of Mumbai, west coast of India G. Kantharajan, P.K. Pandey, P. Krishnan, V. Deepak Samuel, V.S. Bharti, R. Purvaja

PII: DOI: Reference:

S2352-4855(16)30296-1 http://dx.doi.org/10.1016/j.rsma.2017.06.002 RSMA 257

To appear in:

Regional Studies in Marine Science

Received date : 16 December 2016 Revised date : 6 June 2017 Accepted date : 6 June 2017 Please cite this article as: Kantharajan, G., Pandey, P.K., Krishnan, P., Deepak Samuel, V., Bharti, V.S., Purvaja, R., Molluscan diversity in the mangrove ecosystem of Mumbai, west coast of India. Regional Studies in Marine Science (2017), http://dx.doi.org/10.1016/j.rsma.2017.06.002 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain.




Molluscan diversity in the mangrove ecosystem of Mumbai, west coast of




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1. Introduction




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2.1.

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Figure Caption: Fig. 1: Map showing the study areas in mangrove ecosystem of Mumbai Figure Legend: Gorai (1) Bhyander (2) Dahisar (3) Gorai jetty (4) Near Essel World; Versova (5) Malad Creek (6) Dharavali (7) Aksa Beach (8) Pascalwadi (9) Near CIFE; Juhu (10) Versova Beach (11) Near Rajiv Gandhi Institute; Bandstand (12) Chimbai (13) Shirley (14) Bandstand; Bandra (15) Near BKC (16) Mithi River; Sewri (17) Chembur-Wadala road (18) Mahul jetty (19) Sewri Flamingo watch; Vikhroli (20) Vikhroli (21) Ghatkopar (22) Mankhurd; Elephanta Island (23) Mangrove point1 (24) Mangrove point2 (25) Mangrove point3 Fig. 2: Bivalves collected from the mangrove ecosystem of Mumbai Fig. 3: Gastropods collected from the mangrove ecosystem of Mumbai Fig. 4: Gastropods collected from the mangrove ecosystem of Mumbai Fig. 5: Gastropods collected from the mangrove ecosystem of Mumbai
























TABLE CAPTION: Table 1: List of molluscan species recorded from mangrove ecosystem of Mumbai TABLE LEGEND: GOR – Gorai, VER – Versova, JUH – Juhu, BST – Bandstand, BAN – Bandra, SEW – Sewri, VIK – Vikhroli, ELE – Elephanta Island +  denotes Presence -  denotes Absence

Table 2: Molluscan diversity in different mangrove ecosystems

Family

Littorinidae

1 2 3 4 5 6 7 8 9 10

Iravadidae Buccinidae

Ranellidae Assimineidae

Family

No.

Laternulidae 1 Pharidae 2 Donacidae 3 Teredinidae 4 Glauconomidae 5 Trapezidae 6 Cyrenidae 7 Veneridae 8 Arcidae 9 10 Noetiidae 11 Mytilidae 12 Ostreidae 13 14 Sub – Total

No.

Bivalvia

GOR Laternula sp. Pharella javanicus (Lamarck, 1818) Donax scortum (Linnaeus, 1758) Teredo sp. Glauconome chinensis (Gray, 1828) + Neotrapezium sublaevigatum (Lamarck, 1819) Geloina erosa (Lightfoot, 1786) Gafrarium divaricatum (Gmelin, 1791) Barbatia sp. Tegillarca granosa (Linnaeus, 1758) Noetiella pectunculiformis (Dunker, 1866) Perna viridis (Linnaeus, 1758) Crassostrea sp. Saccostrea cucullata (Born, 1778) 1 Gastropoda Species GOR Littoraria carinifera (Menke, 1830) + Littoraria intermedia (Philippi, 1846) + Littoraria scabra (Linnaeus, 1758) Littoraria undulata (Gray, 1839) Gyrineum natator (Röding, 1798) Assiminea brevicula (Pfeiffer, 1855) Assiminea sp1 Assiminea sp2 Iravadia bombayana (Stoliczka, 1868) Cantharus spiralis (Gray, 1839) -

Species

VER + + + + -

VER + + + + + + + 7 Mangrove areas in Mumbai JUH BST BAN SEW + + + + + + + + +

Mangrove areas in Mumbai JUH BST BAN SEW + + + + + + + + + + + 2 4 0 5

Table 1: List of molluscan species recorded in mangrove ecosystem of Mumbai

VIK -

VIK + + + 3

ELE + + + + +

ELE + + + 3

11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

Melongenidae

Nassariidae

Neritidae

Ellobiidae

Thiaridae Haminoeidae Plakobranchidae Physidae Ariophantidae Onchidiidae Amphibolidae

Cerithiidae Planaxidae Potamididae

Muricidae

Indothais lacera (Born, 1778) Indothais sacellum (Gmelin, 1791) Semiricinula tissoti (Petit de la Saussaye, 1852) Clypeomorus bifasciata (G. B. Sowerby II, 1855) Planaxis sulcatus (Born, 1778) Pirenella cingulata (Gmelin, 1791) Pirenella conica (Blainville, 1829) Telescopium telescopium (Linnaeus, 1758) Melanoides tuberculata (O. F. Müller, 1774) Haminoea crocata (Pease, 1860) Elysia bengalensis (Swennen, 2011) Physella gyrina (Say, 1821) Macrochlamys sp. Onchidium sp. Salinator fragilis (Lamarck, 1822) Salinator burmana (Blanford, 1867) Ellobium gangeticum (L. Pfeiffer, 1855) Melampus sincaporensis (L. Pfeiffer, 1855) Melampus sp. (Linnaeus,1758) Auriculastra subula (Quoy & Gaimard, 1832) Cassidula aurisfelis (Bruguière, 1789) Cassidula nucleus (Gmelin, 1791) Pythia plicata (Férussac, 1821) Neripteron violaceum (Gmelin, 1791) Nerita albicilla (Linnaeus, 1758) Nerita balteata (Reeve, 1855) Nerita chamaeleon (Linnaeus, 1758) Nerita oryzarum (Récluz, 1841) Nassarius foveolatus (Dunker, 1847) Nassarius stolatus (Gmelin, 1791) Nassarius sufflatus (Gould, 1860) Volegalea cochlidium (Linnaeus, 1758)

+ + + + + + + + + + + + +

+ + + + + + + -

+ + + + + + + + + + -

-

+ + + + + + + + + + + + + + + + + + + + -

+ + + + + + + + + + + + -

+ + + + + + + + + + + + + + + -

+ + + + + + + + -

+




-  denotes Absence

+  denotes Presence

Family

Sub – Total

Chilodontidae Trochidae

Species

Euchelus asper (Gmelin, 1791) Trochus cariniferus (Reeve, 1842) Clanculus scabrosus (Philippi, 1850) Umbonium vestiarium (Linnaeus, 1758) Polyplacophora

9

+ + 19

+ 13

+ + + 17

9

16

Mangrove areas in Mumbai GOR VER JUH BST BAN SEW Chitonidae Ischnochiton yerburyi (E. A. Smith, 1891) + 47 10 27 15 21 9 21 Total GOR – Gorai, VER – Versova, JUH – Juhu, BST – Bandstand, BAN – Bandra, SEW – Sewri, VIK – Vikhroli, ELE – Elephanta Island

No.

43 44 45 46 15

VIK 18

14

ELE 17

-

Aperture height 5.62 – 6.01 mm, Aperture width 2.52 – 2.56 mm Shell solid, oval-elongate to fusiform in shape, shiny and pale yellow color in appearance and moderately high spire. Aperture forms the major portion of the shell (about 50-65%). Columella truncate and having one or two folds. The inner lip with one small twisted columellar plicae and sharp outer lip with smooth thickening inside.

Aperture height 2.80 - 3.12 mm, Aperture width 1.98 -

2.56 mm

Shell small to medium in size, transparent, umbilicated

and creamy fawn coloured with broad dark brown band

surrounding the upper portion of the whorl. The whorls,

five in number. Sutures are deeply impressed. Aperture is

large and roundly expanded. The Inner columellar lip,

strictly attached to major part of the body wall, creates

Muddy mangrove swamps New record to west coast of India

Muddy patches in mangrove habitats

New record to west coast of India

Habitat

Remarks

wide umbilical cavity

Shell length 9.32 – 9.34 mm, Shell width 3.52 – 3.57 mm,

Shell length 3.98 - 4.47 mm, Shell width 4.04 - 4.49 mm,

Measurements

Features

Ellobiidae (L. Pfeiffer, 1854 (1822))

Auriculastra subula

Amphibolidae Gray, 1840

Salinator fragilis

Family

Details

Table 2: Details of the new distributional records

Table 3: Molluscan diversity in different mangrove ecosystems

Reference

Place

Irma and Sofyatuddin (2011) Zvonareva et al. (2015) Printrakoon and Wells (2008) Jiang and Li (1995) Hamdard et al. (2016) Ghasemi et al. (2011) Dey (2006) Ranjan and Babu (2015) Chakravarty and Ranjan (2014) Satheeshkumar and Khan (2012) Venkatesan et al. (2010)

Indonesia Central Vietnam Thailand China Karachi (Pakistan) Iran Sundarbans Bhavanapadu Nuvvalarevu Pondicherry Karangad (Gulf of Mannar) Andaman and Nicobar Islands Gulf of Kutch Uran (Raigad) Bhayte (Ratnagiri) Kali, Gangavali, Sharavathi and Aghanashini Estuary Kerala Lakshadweep Mumbai

Das and Roy (1989) Saravanakumar et al. (2007) Pawar (2012) Kulkarni and Mukadam (2015) Boominathan et al. (2012) Radhakrishnan et al. (2006) Susan et al. (2012) Present Study

No. of

No. of

No. of

Gastropods

Bivalves

Polyplacophorans

14 53 31 30 12 28 31 15 6 21 13

5 16 24 2 25 4 3 16 12

-

66

32

-

17 38 4 12

16 13 8 4

-

14 9 46

7 14

1







A total of 61 molluscs, represented by 46 gastropods, 14 bivalves and 1




The findings would be useful for identifying areas with high conservation value and in preparing region-specific conservation management plan.

time from the west coast of India.

Two gastropods, Salinator fragilis and Auriculastra subula were reported for the first

polyplacophora has been documented.

Molluscan diversity of mangrove ecosystem of Mumbai, India has been studied.




Highlights