Range extension of a vulnerable Sea horse Hippocampus fuscus (Actinopterygii: Syngnathidae) on the north-eastern Bay of Bengal coast

Mahapatro, Debasish; Mishra, Rajani Kanta; Panda, S.K.

doi:10.1186/s41200-017-0108-z

Cited by 5 publications

(4 citation statements)

References 11 publications

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“…Although, it is not exact whether the Alepes kleinii is endemic to the coastal Bangladesh region, or a recent migrant into these waters, despite the nearest reported findings being Sri Lanka (Robins et al 1991) and South-East India (Kapoor et al 2002). The authors agree with the proposition of Mahapatro et al (2017), that fish always seek better environmental conditions can lead to alterations in geographical distribution. Furthermore, frequent climatic changes and human interventions have worked altogether to distribute species in new areas far from their natural habitat (Hanif et al 2017b).…”

Section: Discussionsupporting

confidence: 80%

First record of the razorbelly scad Alepes kleinii (Bloch, 1793) (Carangidae) along the coast of Bangladesh

et al. 2017

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Background: The Bay of Bengal coast, Bangladesh is a hotspot of fisheries abundance and diversity. A new species of Carangid family Alepes kleinii is recorded and described for the first time in the coastal waters of Bangladesh. Results: A total of 29 individuals of Alepes kleinii were collected from the surveyed areas between January to March, 2016. Validation of this species was confirmed by phenotypic characteristics including body and fins colour, shape, vertical stripes, number of fin rays etc. which were found to be identical to that of the Alepes kleinii described in existing literature. The regression parameter value (b = 2.81) of the length-weight relationship (W = aL b) indicates that the Bay of Bengal provides favourable environmental conditions for the growth and development of this species. Conclusion: The discovery of the razorbelly scad in these waters provide valuable information regarding species distribution and extension, location and habitat preference. This information is prerequisite for the sound management of the coastal fisheries of Bangladesh.

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Section: Discussionsupporting

confidence: 80%

First record of the razorbelly scad Alepes kleinii (Bloch, 1793) (Carangidae) along the coast of Bangladesh

et al. 2017

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“…A southward dispersal of H. histrix~1800 km under the influence of East Australian Current in the Great Barrier Reef has been reported [33]. Furthermore,~1100 km dispersal from the south to the northeast coast of India by H. fuscus under the influence of East India Coastal Current has been also reported [35]. A Direct evidence for passive long-distance dispersal of H. trimaculatus at Malacca Strait has been documented recently [36].…”

Section: Plos Onementioning

confidence: 99%

“…Evidences of long-distance dispersal of seahorse species via rafting (floating debris and seaweeds) [2,12,30] and subsequent colonization [21] have also been documented. The role of oceanic currents facilitating long-distance dispersal and range expansion of many seahorse species has also been highlighted [31][32][33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Morphological and molecular evidence for first records and range extension of the Japanese seahorse, Hippocampus mohnikei (Bleeker 1853) in a bay-estuarine system of Goa, central west coast of India

et al. 2020

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Accurate information of taxonomy and geographic range of seahorse species (genus Hippocampus) is the first step in preparing threat assessments and designing effective conservation measures. Here, we report first records and a range extension of the Japanese seahorse, Hippocampus mohnikei (Bleeker, 1853) from the Mandovi estuarine ecosystem of Goa, central west coast of India (CWCI) based on morphological and molecular analyses. The morphometric and meristic traits, particularly short snout (29-35% head length), double cheek spine, low coronet, long tail (51.2-57.9% of standard length), 11 trunk rings, 37-39 tail rings, 15-16 dorsal and 12-14 fin rays observed in four collected specimens matched with the reported key diagnostic morphological criteria of vouchered specimens of H. mohnikei. The seahorse mitochondrial cytochrome oxidase subunit I (COI) and cytochrome b (Cyt b) genes were partially sequenced for conclusive genetic identification of the species under study. Molecular analysis showed that all four individuals clustered together suggesting a monophyletic lineage. Using the maximum similarity with GenBank database, maximum likelihood network and subsequent morphological analysis, the identity of the collected seahorse species was reconfirmed as H. mohnikei. With this new report, the geographic range of H. mohnikei extended significantly to the west from its previously known range. This new sighting of H. mohnikei could indicate a long-distance dispersal facilitated by the prevailing oceanic circulation in the Indo-Pacific region or increased habitat suitability in bay-estuarine systems of Goa, CWCI. Comparison of the pair-wise genetic distances (Kimura 2-parameter) based on COI and Cyt b sequences revealed that the specimens examined in this study are genetically closer to H. mohnikei populations from Vietnam and Thailand than they are to those in Japan and China. To test the hypothesis whether H. mohnikei are vagrants or previously unreported established population, long-term inter-annual sampling and analyses are warranted. PLOS ONE PLOS ONE | https://doi.org/10.1371/journal.pone.0220420 March 24, 2020 1 / 22 OPEN ACCESS Citation: Sanaye SV, Khandeparker R, Rayadurga AS, Shivaramu MS, Kankonkar H, Narvekar J, et al. (2020) Morphological and molecular evidence for first records and range extension of the Japanese seahorse, Hippocampus mohnikei (Bleeker 1853) in a bay-estuarine system of Goa, central west coast of India. PLoS ONE 15(3): e0220420. https://

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“…For successful maintenance of their population seahorses depend on range extension and migration to new habitats despite being poor swimmers and their dependence on rafting for long-distance dispersal (Teske et al 2005;Luzzatto et al 2013). Range extension in seahorses of India has been previously documented for H. fuscus from southeastern coast, northwards towards the Chilika lagoon (Mahapatro et al 2017), and for H. mohnikei from the southeastern coast into Mandovi estuary in Goa (Sanaye et al 2020). Hippocampus kelloggi is one of the common seahorse species found along the Coromandel coast with distribution limited only to the…”

mentioning

confidence: 99%

First record of the Great Seahorse Hippocampus kelloggi Jordan & Snyder, 1901 (Actinopterygii: Syngnathiformes: Syngnathidae) from the northwestern coast of Bay of Bengal

Behera

Mahari²,

Mishra³

2023

J. Threat. Taxa

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This study reports the first occurrence of the Great Seahorse Hippocampus kelloggi from the state of Odisha in the eastern coast (Bay of Bengal) of India. The seahorse was captured in a ring net during daily fishing activities. The sample was collected from the Ariyapalli fish landing center and identification was carried out based on the morphometric features of the specimen and the seahorse identification guide. The total length of the juvenile seahorse was 12.5 cm (with a tail length of 6.6 cm (52.8%), trunk length of 3.4 cm (27.2%) and head length of 2.5 cm (20%)). The length of the snout was 1 cm. There were 38 tail rings followed by 11 rings on the trunk of the animal. Both eye and cheek spines were present. Northward migration (~1,300 km) of this species can be a response of extensive fishing activities around the southern coast of India. This calls for increased monitoring of the coast coastal ecosystems of India on the east coast for better conservation and management of the remaining seahorse populations.

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Range extension of a vulnerable Sea horse Hippocampus fuscus (Actinopterygii: Syngnathidae) on the north-eastern Bay of Bengal coast

Cited by 5 publications

References 11 publications

First record of the razorbelly scad Alepes kleinii (Bloch, 1793) (Carangidae) along the coast of Bangladesh

First record of the razorbelly scad Alepes kleinii (Bloch, 1793) (Carangidae) along the coast of Bangladesh

Morphological and molecular evidence for first records and range extension of the Japanese seahorse, Hippocampus mohnikei (Bleeker 1853) in a bay-estuarine system of Goa, central west coast of India

First record of the Great Seahorse Hippocampus kelloggi Jordan & Snyder, 1901 (Actinopterygii: Syngnathiformes: Syngnathidae) from the northwestern coast of Bay of Bengal

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