Results 11 to 20 of about 357 (147)

COELENTERATA

open access: yes, 2023
Boshliqichlilar tipiga 9000ga yaqin tur kiradi. Koʻpchilik turlari dengizlarda ayrim turlari chuchuk suvlarda uchraydi. Oʻtroq,erkin yakka yoki kaloniya boʻlib yashaydi. Tanasi radial oʻqli simmetriyaga ega.Tanasi orqali bitta asosiy oʻq oʻtkaziladigan boʻlsa,tana organlari ana shu oʻq atrofida radial nur boʻylab joylashadi.
openaire   +1 more source

ISOLASI DAN KARAKTERISASI KITIN DARI LIMBAH UDANG

open access: yesSains Natural, 2017
Isolation and Characterization of Chitin From Shrimp Waste            Chitin is a natural biopolymer that is widespread in nature and the second abundance only to cellulose organic compounds are available in the earth.
Mahyudin A. R   +2 more
doaj   +1 more source

Investigations of the Evolved Molecular Basis for Terpenoid Biosynthesis in Marine Sponges

open access: yesAdvanced Science, EarlyView.
Confirming and extending a previous observation in another Bubarida sponge, genomic and functional analyses of A. cavernosa reveal that sponges retain the mevalonate pathway and employ single α‐domain T1TSs and UbiA‐type TSs for terpenoid biosynthesis. The absence of T1TSs clustering with other biosynthetic genes tentatively suggests, based on limited ...
Fangyan Chen   +6 more
wiley   +1 more source

Partners or passengers? Revisiting the association between diatoms and aquatic animals

open access: yesBiological Reviews, EarlyView.
ABSTRACT Numerous studies have revealed the importance of research on the communities capable of colonizing animal surfaces (epibionts) and the animals on which they live (basibionts). Very few studies have considered epizoic diatoms, and there are gaps and biases in our knowledge, including the choice of basibionts, the methods used, and the habitats ...
Gianluca Vacca   +2 more
wiley   +1 more source

Review of the fauna associated with wild and farmed mussels and oysters in the Mediterranean

open access: yesBiological Reviews, EarlyView.
ABSTRACT Mussels and oysters are important ecosystem engineers which modify the physical and chemical characteristics of the environment and create habitats that support highly diverse associated communities. In the Mediterranean Sea, the native Mediterranean mussel Mytilus galloprovincialis and the European flat oyster Ostrea edulis, together the ...
Barbara Mikac   +5 more
wiley   +1 more source

Evidence for adaptive explanations of semelparity in animals

open access: yesBiological Reviews, EarlyView.
ABSTRACT Semelparity, the reproductive strategy of reproducing once, is widespread but uncommon in animals. Classes of models to explain the evolution of semelparity are based either on age structure and mortality schedules – demographic models in which high post‐reproductive mortality risk favours high reproductive effort and semelparity results from ...
Diana O. Fisher   +1 more
wiley   +1 more source

A shining starlet: Nematostella vectensis as a model for developmental, regenerative, and comparative biology

open access: yesDevelopmental Dynamics, EarlyView.
Abstract The sea anemone, Nematostella vectensis, has been used as a model organism in developmental biology studies for many years. This estuarine species has the notable capacity to regenerate its full body plan from small pieces throughout life. Nematostella have been described as having a great degree of cellular plasticity.
Patrick A. Lewis   +3 more
wiley   +1 more source

Coelenterata. Anthozoa.

open access: yes, 1922
Die erste Koralle aus dem Tertiär von Java ist 1864 durch Duncan vom Goenoeng Sela im Tji Lanangtal beschrieben worden. 1867 hat dann Reuss die erste grössere Suite von Tertiärkorallen bearbeitet, die v. Hochstetter anlässlich der Novara-Expedition gesammelt hatte.
openaire   +2 more sources

From the sea to DNA barcode: Optimized preservation method for gelatinous zooplankton integrative taxonomy

open access: yesLimnology and Oceanography: Methods, EarlyView.
Abstract Assigning taxonomic identity and thus assessing taxonomic diversity in gelatinous zooplankton is challenging due to their fragility and difficult preservation. Formalin fixation compromises DNA integrity, while flash‐freezing, ethanol, and acetone preservation affect morphological features. In this study, we developed a methodological protocol
Claudia Traboni   +4 more
wiley   +1 more source

Under the cover of darkness: Foraging behaviour increases on cloudy, new moon nights in a pelagic seabird

open access: yesIbis, EarlyView.
While many visual predators feed exclusively during the day, others exploit foraging opportunities at night, although the efficiency with which they do so is strongly influenced by ambient light levels. We investigated the influence of variation in nocturnal light on the foraging behaviour of a small pelagic seabird, the European Storm‐petrel ...
Darren Wilkinson   +3 more
wiley   +1 more source

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