Estimating the abundance of clustered and cryptic marine macro-invertebrates in the Galápagos with particular reference to sea cucumbers [PDF]
, 2003 Estimating the abundance of marine macro-invertebrates is complicated by a variety of factors: 1) human factors, such as diver efficiency and diver error; and 2) biological factors, such as aggregation of organisms, crypsis, and nocturnal emergence ...
Edgar, G.J. +2 more
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Molecular evolution of candidate male reproductive genes in the brown algal model Ectocarpus [PDF]
, 2016 Background: Evolutionary studies of genes that mediate recognition between sperm and egg contribute to our understanding of reproductive isolation and speciation. Surface receptors involved in fertilization are targets of sexual selection, reinforcement,
De Clerck, Olivier +2 more
core +6 more sources
Insect Science, EarlyView.The mitogenome was transcribed into complete primary polycistrons on both strands. The heteropteran mitochondrial transcription termination factor (HmTTF) functions as a bidirectional attenuator rather than a terminator, and co‐evolution of HmTTF and the binding sites was observed.
Shiwen Xu +6 more
wiley +1 more source
Thin layer chromatographic separation of lipids in ovary, testis and gut of the sea urchin Salmacis virgulata [PDF]
, 1982 Sea urchins accumulate large amounts of lipid in ovary during its reproductive cycle (Giese, 1966 ; Vivek Raja, 1980); Lipids deposited in the developing gonads may be synthesized within the oocytes or transported from the gut.
Vivek Raja, P
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Integrative Zoology, EarlyView.Juvenile Procambarus clarkii exposed to noise exhibited behavioral changes, shifts in enzymatic activity, and altered expression of stress and immune genes. The findings highlight the sensitivity of invertebrate juveniles to anthropogenic acoustic pollution.
Maria Ceraulo +8 more
wiley +1 more source
Bioerosion on shore platforms developed in the Waitemata Formation, Auckland [PDF]
, 1968 Bioerosion - the removal of lithic substrate by the erosive activities of living organisms- has not previously been discussed for New Zealand shore platforms.
Healy, T.R.
core +1 more source
Microtubule Inner Protein CFAP77 Contributes to Sperm Motility and Male Fertility in Mice
Andrology, EarlyView.ABSTRACT Background Sperm motility is essential for male fertility, and its regulation is dependent on the structural integrity of the axoneme. The axoneme consists of a conserved “9+2” microtubule arrangement and is supported by microtubule inner proteins. However, the functional significance of many microtubule inner proteins remains unclear.
Haoting Wang +4 more
wiley +1 more source
Embryonic and post-embryonic utilization and subcellular localization of the nuclear receptor SpSHR2 in the sea urchin [PDF]
, 1998 SpSHR2 (Strongylocentrotus purpuratus steroid hormone receptor 2) is a nuclear receptor, encoded by a maternal RNA in the sea urchin embryo. These maternal SpSHR2 transcripts, which are present in all cells, persist until the blastula stage and then are ...
Flytzanis, Constantin N. +2 more
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Advancing conservation breeding programs for marine invertebrates
Conservation Biology, EarlyView.Abstract In the face of ecosystem change and biodiversity loss caused by climate change and other stressors, conservation breeding, or captive breeding, with the aim of reintroduction for wild population recovery, is an emerging tool for preventing species’ extinction and rehabilitating ecosystems.
Elora H. López‐Nandam +3 more
wiley +1 more source
Specification of cell fate in the sea urchin embryo: summary and some proposed mechanisms [PDF]
, 1998 An early set of blastomere specifications occurs during cleavage in the sea urchin embryo, the result of both conditional and autonomous processes, as proposed in the model for this embryo set forth in 1989.
Cameron, R. Andrew +2 more
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