Nearshore sediment dynamics of Kavaratti Island, Lakshadweep archipelago using integrated modelling system

845-857The Kavaratti Island of Lakshadweep archipelago exhibits high coastal erosion and shoreline changes due to the anthropogenic stresses on the island morphology. This study focuses on the shoreline analysis using Digital Shoreline Analysis System model and nearshore sediment dynamics using an integrated modeling system with high resolution bathymetry of ~15 m. The sediment load and bed level change were estimated using the sediment transport model through the feedback mechanism of flow and wave forces. The model simulations were performed during winter, pre-monsoon, monsoon and post-monsoon seasons for the year 2015 and calibrated using the field observation datasets. Shoreline change studies indicate the coastal erosion of about 83.43 % and accretion of about 16.55 % along the island coast. The study signifies the erosion around the fishing jetty and accretion at the western (Katchery) jetty due to wave induced currents and tidal influx. The scouring effect due to the presence of tetrapods along the island coast is observed between 0.02 and 0.18 m

Checklist of serranid and epinephelid fishes (Perciformes: Serranidae & Epinephelidae) of India

We provide an updated checklist of fishes of the families Serranidae and Epinephelidae reported or listed from India, along with photographs. A total of 120 fishes in this group are listed as occurring in India based on published literature, of which 25 require further confirmation and validation. We confirm here the presence of at least 95 species in 22 genera occurring in Indian marine waters. The majority of the species belong to the grouper genus Epinephelus (41%), followed by Pseudanthias (15%) and Cephalopholis (13%). Most species (92%) found in India have been assessed globally either as Data Deficient (DD) or Least Concern (LC) on the IUCN Red List of Threatened Species. Since information on groupers from India is limited, there is an urgent need to document the diversity, ecology, life history, population status, and fisheries status of this group of fishes from the country

Epigonus indicus, a new species of deepwater cardinalfish (Perciformes: Epigonidae) from the Indian Ocean

A new species of deepwater cardinalfish, Epigonus indicus, is described from two specimens, 105.2 and 100.2 mm SL, from Kavaratti Island, Lakshadweep (Laccadive) Sea, India. The specimens were collected from storage tanks at a desalination plant where seawater was piped up from 350–400 m depths. Diagnostic features distinguishing the new species from congeners include no pungent opercular spines, no maxillary mustache-like process, no projections on the symphysis of the lower jaw, ribs absent on the last abdominal vertebra, no isolated dorsal-fin spine between the first and second dorsal fins, gill rakers 26–27, pectoral-fin rays 15–17, pectoral-fin length about 22–23% SL, and body depth about 28–29% SL

FIGURE 3 in Two new species of the codling fish genus Physiculus from Lakshadweep, India (Gadiformes: Moridae)

FIGURE 3. Physiculus lakshadeepa sp. nov., holotype, MTRLDST 00112, preserved. A. Lateral view. B. Ventral of the abdomen. C. Radiograph.Published as part of Idrees Babu, K. K., Ho, Hsaun-Ching, Mariyambi, P.C. & Sureshkumar, S., 2022, Two new species of the codling fish genus Physiculus from Lakshadweep, India (Gadiformes: Moridae), pp. 111-124 in Zootaxa 5104 (1) on page 116, DOI: 10.11646/zootaxa.5104.1.6, http://zenodo.org/record/625809

FIGURE 4 in Two new species of the codling fish genus Physiculus from Lakshadweep, India (Gadiformes: Moridae)

FIGURE 4. Physiculus lakshadeepa sp. nov., paratype, MTRLDST 00113, preserved. A. Lateral view. B. ventral view of abdomen. C. Radiograph.Published as part of <i>Idrees Babu, K. K., Ho, Hsaun-Ching, Mariyambi, P.C. & Sureshkumar, S., 2022, Two new species of the codling fish genus Physiculus from Lakshadweep, India (Gadiformes: Moridae), pp. 111-124 in Zootaxa 5104 (1)</i> on page 117, DOI: 10.11646/zootaxa.5104.1.6, <a href="http://zenodo.org/record/6258095">http://zenodo.org/record/6258095</a&gt

Two new species of the codling fish genus Physiculus from Lakshadweep, India (Gadiformes: Moridae)

Idrees Babu, K. K., Ho, Hsaun-Ching, Mariyambi, P.C., Sureshkumar, S. (2022): Two new species of the codling fish genus Physiculus from Lakshadweep, India (Gadiformes: Moridae). Zootaxa 5104 (1): 111-124, DOI: https://doi.org/10.11646/zootaxa.5104.1.

FIGURE 5 in Two new species of the codling fish genus Physiculus from Lakshadweep, India (Gadiformes: Moridae)

FIGURE 5. Physiculus lakshadeepa sp. nov., fresh condition, from the holotype???. A. Lateral view of anterior body, fresh condition. B. Close-up of high first dorsal fin with first ray filamentous. C. Ventral view of abdomen showing the pelvic-fin base, light organ and anus.Published as part of <i>Idrees Babu, K. K., Ho, Hsaun-Ching, Mariyambi, P.C. & Sureshkumar, S., 2022, Two new species of the codling fish genus Physiculus from Lakshadweep, India (Gadiformes: Moridae), pp. 111-124 in Zootaxa 5104 (1)</i> on page 118, DOI: 10.11646/zootaxa.5104.1.6, <a href="http://zenodo.org/record/6258095">http://zenodo.org/record/6258095</a&gt