The present study investigates the effect of four microalgal diets in two dietary modes viz. mono diets (Dunaliella salina, Isochrysis galbana, Chaetoceros calcitrans) and combined diet (Isochrysis galbana and Chaetoceros calcitrans) on growth parameters such as morphological development, larvae survival and metamorphosis of Salmacis bicolor species grown under laboratory conditions for a period of

Ophichthus sangjuensis (Ji and Kim, 2011), a species reported earlier from the Korean water as Pisodonophis sangjuensis Ji and Kim, 2011, of the Northern Pacific Ocean, is reported here from Indian waters on the basis of 8 specimens collected from the Bay of Bengal. The present paper reports the species for the first time from Indian waters and the distributional range of the species by this report

This study aimed to determine the effect of rearing water temperature on survival, growth and molting cycle of the mud crab, S. paramamosain from Megalopa up to 1st crablet instar (Crablet 1) and from Crablet 1 to 2nd crablet instar (Crablet 2). Different water temperature regimes were implemented i.e. 20 °C, 24 °C, 28 °C, 32 °C, 36 °C and ambient temperature. The observed parameters were: successful

The present study investigates the demographic characteristics of economically, ecologically and medicinally important mudskipper species, Pseudapocryptes elongatus (Cuvier, 1816) from Indian Sundarbans, based on data collected over 15 consecutive months. Length-frequency data of 945 individuals collected from the Indian Sundarbans were analyzed using a FAO-ICLARM Stock Assessment Tool. Length–weight

A new record of Hasselt’s bamboo shark Chiloscyllium hasseltii (Orectolobiformes: Hemiscylliidae) has been confirmed from the St. Martin’s Island, the northeastern part of the Bay of Bengal of Bangladesh. Two male specimens were collected on 19th December 2018 from the coast of St. Martin’s Island as a bycatch of the local fishermen. The traditional morphometric method was applied for taxonomic identification

The colonization of biofouling organisms is a significant problem for the aquaculture installations which affect the economy of the fish farms and wellbeing of the cultured fish. In this study, the colonization of biofouling organisms on cage aquaculture nets submerged near to the existing floating cages was analysed for a period of one year from June 2017 to May 2018. Cage net panels were fitted onto

Brown shrimp Penaeus aztecus Ives, 1891 seems to be well adapted in the Ionian Sea since its first occurrence in the coastal zone of the island of Corfu during 2013. In the current work, we present additional new records from Argostoli Gulf (Cephalonia Island), Sagiada Bay (Therspotia, NW Greece) and Mesoggi (Corfu Island), which verify the wider distribution of the species. Moreover, direct contacts

Although crab Pachygrapsus marmoratus, is one of the common species in the intertidal zones of the Aegean coasts of Turkey, its’ population structure has not been investigated to date. This study aimed to provide information on population characteristics of Pachygrapsus marmoratus, including the sex ratio, size distribution, spawning period, relative growth and catch per unit effort (CPUE). The samples

The Sardine run associated with a bloom of the diatom genus Fragilariopsis was observed along the inshore coastal waters off Kanhangad during the last phase of the summer monsoon 2019. There was an unusual shoreward dumping of live oil sardines along with the waves throughout the day. High salinity (33 psu) and nutrient concentrations (Nitrate 16.33 μmol L−1 and silicate 13.9 μmol L−1) favoured the

Sera 17β-estradiol (E2), 11-ketotestesteron (11-KT) and 17,20-β-dihydroxy-4-pregnen-3-one (17,20βP) levels together with histological changes in liver and gonad tissues were determined after exposing sexually mature female C.carpio to 0.13 and 0.26 mg L− 1 lead for 7, 14 and 21 days. Effects of lead on hepatosomatic - gonadosomatic indices of female fish were also determined after these exposure periods

Trace elements contamination in the aquatic ecosystem is a current and major environmental concern due to their non-degradable nature and toxic effects on human health. Concentrations of arsenic (As), chromium (Cr), cadmium (Cd) and lead (Pb) in fish were estimated to evaluate contamination levels and health risks for Bangladeshi adults. A total of six demersal fish species namely Mystus vittatus,

Amphioctopus ovulum is an important species found along the China coast distributed from the East China Sea to the South China Sea. This is the first study about the population structure and diversity carried out for this species in the China Sea. Two mitochondrial DNA genes Cytochrome oxidase subunit 1 and Cytochrome b (CO1 & Cytb) and one nuclear DNA gene (Heat shock protein 70 (HSP-70) were used

During December 2010, an expedition was conducted to the Philippines Islands aiming to collect coastal polychaetes in the area. Among the abundant material, 593 individuals belonging to the family Eunicidae (Annelida; Polychaeta) were found and studied, and their identification yielded seven species. Four of them were new records to Philippines, enlarging the list of eunicid polychaetes of the country

The fourspine sculpin Rheopresbe kazika is a cottid fish endemic to Japan, and this fish is designated as a national monument species in some areas of the country. The natural population of the fish has decreased in recent years, and therefore various efforts have been made to establish an efficient culture system for this species. However, there is little information available regarding the life history

The petal-eyed swimmer crab, Vojmirophthalmus minabensis (Sakai 1961) is reported for the first time from the Indian coast. A single ovigerous female specimen was collected from the Nochikuppam fish landing centre, Chennai coast, southeast India. This species has previously been recorded only from the Sea of Japan and off the coast of Sarawak, Borneo. This report widens the knowledge of its distribution

The Mamanguape River estuary represents an important environment for marine species, where there are the combination of soft-bottoms and reefs zones. The present study reports on the echinoderm species inhabiting Barra de Mamanguape, at Northeast coast of Brazil. A total of 83 specimens were analyzed, belonging to 13 species, 10 families and the classes Crinoidea, Ophiuroidea, Echinoidea and Holothuroidea

The present study was designed to assess the alternate environmental friendly source of protein; here we report the suitability of soybean meal as a plant protein source for partial replacement of fishmeal in the diet of Arabian yellowfin seabream Acanthopagrus arabicus; reared in floating net cages. A total of 56 days feeding trial was conducted to evaluate the growth performance, feed utilization

The length-weight relationships (LWRs) of fourteen marine pelagic fish species were determined in the southeastern Arabian Sea. Specimens were collected on weekly basis from two major fishing harbours (Mangalore and Malpe) along the Karnataka coast during 2017–2018. The fish were caught using wide variety of fishing gears such as trawlnets, purse seines, ring seines, gillnets and long lines. The estimated

The Bearded Ghoul, Inimicus didactylus (Pallas, 1769), a member of stonefish family previously known to be distributed only in the western Pacific from southern Japan, northern Australia and Vanuatu is reported herein from the southeast coast of India. This report constitutes the fifth species of the genus Inimicus to be reported from the Indian waters. The meristic and morphological characters of

The present study reports length-weight relationships (LWRs) and Fulton’s condition factor (K) of five marine finfish species [(Siganus vermiculatus (Valenciennes, 1835), Kathala axillaris (Cuvier, 1830), Exocoetus volitans, Linnaeus, 1758, Chaetodon collare Bloch, 1787 and Boleophthalmus dussumieri Valenciennes, 1837)] from Parangipettai (East coast, Tamil Nadu) and Mumbai (West coast, Maharashtra)

The mudflat crab (Helice tientsinensis) is one of the most common crabs along the coast of China, and it is one of the important commercial species in Chinese aquaculture. However, unlike other consumed crabs, which are omnivores or carnivores, H. tientsinensis is a primarily herbivorous crab. Studies have rarely been conducted on the expression of digestive enzyme genes and their role in regulating

Intersexual hound sharks, Iago cf. omanensis (Triakidae) were found in unusually large numbers from India coast, north-western Bay of Bengal. A total of 154 specimens were collected during August 2018 to July 2019 from Digha Mohana Fish Landing Centre (West Bengal, India) whose size ranged from 21.5 to 59.7 cm total length (TL) with a mean length of 40.06 ± 0.57 cm (Mean ± SE, n = 154). Out of these

The present study reports the Scolopsis xenochrous Günther, 1872 off Vizhinjam coast, from Wadge Bank, Southeastern Arabian Sea. Four specimens of S. xenochrous were collected at a depth of 20 to 30 m by a gill net operated by traditional fishing craft. The morphometric and molecular identification characters of the verified specimens are described. The most of the morphometric measurement and meristic