Study of morphological charachteristic and distribution of Indomysis annandalei and Rhopalophthalmus sp. (Crustacea: Mysida) for the first time from Iranian costal of Persian Gulf

Mysida includes small planktonic Crustaceans that are cosmopolitan, this tiny animals could be found in variety of marine habitats and depts. In this investigation mysida populations were sampled and studied from Iranian costal waters of Persian Gulf (estuary of Arvand and Bahmanshir rivers) in monthly basis from March to October 2011. Sampling process was conducted using plankton net 300 µm mesh size and oblique tows were made from near the bottom to the surface in 7 stations. Finally two species identify and morphological charachteristic of Indomysis annandalei and Rhopalophthalmus sp. was drew with Camera Lucida. Species abundance was measured in different months and stations. Maximum value of the average abundance of species was shown in June (2.85 1 N per M^3)

First record of Sternaspis thorsoni (Polychaeta: Sternaspidae) from Northern Oman Sea (Chabahar Bay, Iran)

117-122In this study report of Sternaspis thorsoni from Iranian coasts of northern Oman Sea was undertaken. Sternaspid polychaetes are usually found at different depths of marine habitats ranging from soft bottoms of coastal waters to deep-sea areas. Sternaspis thorsoni was identified as a new species by Sendall & Salazar-Vallejo in 2013.. Sternaspis thorsoni was observed between 3m and 5.5m depths of Chabahar bay during March 2014. Previous record refers this species in the Persian Gulf from 3 to 110m depth

Fatty acid composition of Spirulina sp., Chlorella sp. and Chaetoceros sp. microalgae and introduction as potential new sources to extinct omega 3 and omega 6

Background: This study was carried out to determine the oil fatty acids from two special species of microalgae; Spirulina sp.,Chlorella sp. and also Chaetoceros sp. collected from Bahmanshir River. Materials and Methods: Sampling of microalgae Chaetoceros sp. from Bahmanshir River was under taken using bottle samplers during spring season of 2013. Microalgae Spirulina sp. and Chlorella sp. were supplied from Shrimp Research Institute of Iran in Bushehr Province. Samples then were cultured under controlled laboratory conditions and mass culture for 100 liters was undertaken. Isolation of microalgae species from water of cultured media was carried out using filtration and centrifugation methods. The fatty acid compositions were determined by Gas – FID chromatography. Results: Results showed that regarding Saturated Fatty Acids (SFA) obtained from purified culture of Chaetoceros sp., Spirulina sp. and Chlorella sp. the maximum amount of total fatty acids were belonged to palmitic acids (C16:0) with 15.21%, 30.1% and 25.17% of total fatty acids  respectively. Analysis of Mono Unsaturated Fatty Acids (MUFA) showed that in the Oleic acid was maximum amount of 34% in Spirulina sp. In addition the amount of MUFA in Chlorella sp. was 16.37% of total fatty acids. On the other hand the amount of palmeotic acid in purified culture of Chaetoceros sp. was 30.33% from total content of fatty acids. Analysis of Poly Unsaturated Fatty Acids (PUFA), Linoleic acid (C18:2) (Omega 6), revealed maximum percentage in Spirulina sp. with 18.8%. Results of Alpha linoleic acid (C18:3) (Omega3) analysis showed maximum amount of 9.66% in Chlorella sp. compared to other microalgae with lower omega 3 contents. Spirulina sp. contained maximum amount of Linoleic acid (C18:2) with 18.8% of total fatty acids. Therefore, Spirulina sp. can be considered as a rich source of omega 6 for the purpose of fatty acid extractions. The presence of PUFA in Chlorella sp. and Spirulina sp. was equivalent whereas the amount of Omega 3 in Chlorella sp. was higher than two other species. Conclusion: Results of this study revealed a diverse profile of fatty acids among many species of phytoplanktons and microalgae. There Chlorella sp. with a good candidate and a rich source of Omega 3 future applications. It is indicated that different species have totally different fatty acid profiles. Therefore, to acquire special products for a particular target, selection of specific species is essential

New records of the brittle stars Ophiothela venusta and Ophiactis modesta (Echinodermata: Ophiuroidea) from the northern Persian Gulf, with morphological details

Peyghan, Soroor, Doustshenas, Babak, Nabavi, Mohammad Bagher, Rounagh, Mohammad Taghi, Larki, Amir Ashtari, Stöhr, Sabine (2018): New records of the brittle stars Ophiothela venusta and Ophiactis modesta (Echinodermata: Ophiuroidea) from the northern Persian Gulf, with morphological details. Zootaxa 4527 (3): 425-435, DOI: https://doi.org/10.11646/zootaxa.4527.3.1

FIGURE 2 in New records of the brittle stars Ophiothela venusta and Ophiactis modesta (Echinodermata: Ophiuroidea) from the northern Persian Gulf, with morphological details

FIGURE 2. Live specimens of Ophiothela venusta associated with the gorgonian Euplexaura sp. A, note the high number of brittle stars (>10) and their colour variability with red–black–white bands, white–red, yellow–red and uniformly greyish–green animals. B, magnified upper right quarter of A, upper animal with wider dark blue and red bands, separated by thin white bands, lower animal with wide white and narrower red bands. Scale bars in millimetre