How does emersion time affect embryos of coastal marine invertebrate species? Biochemical responses of three porcelain crabs from the Southeastern Pacific

2021 ◽  
Author(s):  
Natalia Viña‐Trillos ◽  
Fabián Guzmán‐Rivas ◽  
Ángel Urzúa
Keyword(s):  
Marine Invertebrate ◽  
Biochemical Responses ◽  
Invertebrate Species ◽  
Southeastern Pacific ◽  
Coastal Marine ◽  
Porcelain Crabs

scholarly journals Silent oceans: ocean acidification impoverishes natural soundscapes by altering sound production of the world's noisiest marine invertebrate

2016 ◽  
Vol 283 (1826) ◽  
pp. 20153046 ◽  
Author(s):  
Tullio Rossi ◽  
Sean D. Connell ◽  
Ivan Nagelkerken
Keyword(s):  
Ocean Acidification ◽  
Sound Production ◽  
Marine Invertebrate ◽  
Empirical Test ◽  
Sound Level ◽  
Similar Reduction ◽  
Snapping Shrimp ◽  
Larval Stages ◽  
Coastal Marine ◽  
Ecological Importance

Soundscapes are multidimensional spaces that carry meaningful information for many species about the location and quality of nearby and distant resources. Because soundscapes are the sum of the acoustic signals produced by individual organisms and their interactions, they can be used as a proxy for the condition of whole ecosystems and their occupants. Ocean acidification resulting from anthropogenic CO 2 emissions is known to have profound effects on marine life. However, despite the increasingly recognized ecological importance of soundscapes, there is no empirical test of whether ocean acidification can affect biological sound production. Using field recordings obtained from three geographically separated natural CO 2 vents, we show that forecasted end-of-century ocean acidification conditions can profoundly reduce the biological sound level and frequency of snapping shrimp snaps. Snapping shrimp were among the noisiest marine organisms and the suppression of their sound production at vents was responsible for the vast majority of the soundscape alteration observed. To assess mechanisms that could account for these observations, we tested whether long-term exposure (two to three months) to elevated CO 2 induced a similar reduction in the snapping behaviour (loudness and frequency) of snapping shrimp. The results indicated that the soniferous behaviour of these animals was substantially reduced in both frequency (snaps per minute) and sound level of snaps produced. As coastal marine soundscapes are dominated by biological sounds produced by snapping shrimp, the observed suppression of this component of soundscapes could have important and possibly pervasive ecological consequences for organisms that use soundscapes as a source of information. This trend towards silence could be of particular importance for those species whose larval stages use sound for orientation towards settlement habitats.

scholarly journals EXCESS POTASSIUM INDUCES LARVAL METAMORPHOSIS IN FOUR MARINE INVERTEBRATE SPECIES

1986 ◽  
Vol 170 (2) ◽  
pp. 255-266 ◽  
Author(s):  
ANDREA J. YOOL ◽  
SUSAN M. GRAU ◽  
MICHAEL G. HADFIELD ◽  
REBECCA A. JENSEN ◽  
DOUGLAS A. MARKELL ◽  
...  
Keyword(s):  
Marine Invertebrate ◽  
Larval Metamorphosis ◽  
Invertebrate Species

scholarly journals Toxicity responses for marine invertebrate species of brazilian occurrence

2019 ◽  
Vol 14 (1) ◽  
pp. 15-25
Author(s):  
Artal M.C. ◽  
Santos A. ◽  
Dornelas L.L. ◽  
Vannuci-Silva M. ◽  
Vacchi F.I. ◽  
...  
Keyword(s):  
Marine Invertebrate ◽  
Invertebrate Species

scholarly journals Viromes in Marine Ecosystems Reveal Remarkable Invertebrate RNA Virus Diversity

2021 ◽  
Author(s):  
Yu-Yi Zhang ◽  
Yicong Chen ◽  
Xiaoman Wei ◽  
Jie Cui
Keyword(s):  
Rna Viruses ◽  
Rna Virus ◽  
Marine Invertebrate ◽  
Ecological Factors ◽  
Virus Evolution ◽  
Marine Ecosystems ◽  
Invertebrate Species ◽  
Virus Diversity ◽  
First Time ◽  
Special Notice

AbstractOcean viromes remain poorly understood and little is known about the ecological factors driving aquatic RNA virus evolution. In this study, we used a meta-transcriptomic approach to characterize the viromes of 58 marine invertebrate species across three seas. This revealed the presence of 315 newly identified RNA viruses in nine viral families or orders (Durnavirales, Totiviridae, Bunyavirales, Hantaviridae, Picornavirales, Flaviviridae, Hepelivirales, Solemoviridae and Tombusviridae), with most of them are sufficiently divergent to the documented viruses. With special notice that we first time revealed an ocean virus rooting to mammalian hantaviruses. We also found evidence for possible host sharing and switch events during virus evolution. In sum, we demonstrated the hidden diversity of marine invertebrate RNA viruses.

Mytilus protamine-like sperm-specific protein genes are multicopy, dispersed, and closely associated with hypervariable RFLP regions

Genome ◽  
1998 ◽  
Vol 41 (4) ◽  
pp. 587-596 ◽  
Author(s):  
Daniel D Heath ◽  
Thomas J Hilbish
Keyword(s):  
Southern Blot ◽  
Gene Sequence ◽  
Marine Invertebrate ◽  
Specific Protein ◽  
Southern Analysis ◽  
Single Individual ◽  
Southern Blots ◽  
Invertebrate Species ◽  
Marine Mussels

Protamine-like sperm packaging proteins replace somatic histones during spermatogenesis, and although the proteins have been well-characterized in many marine invertebrate species, little is known of the arrangement of the genes. The research described here was designed to determine the sequence and structure of the protamine-like PL-III (or "1") gene in marine mussels (Mytilus spp). The PL-III sequence was found to be extremely variable not only among the closely related Mytilus species, but also within species and populations. The variation observed among eight PL-III sequences from a single individual indicated that PL-III was probably multiple-copied. Southern analysis confirmed that PL-III, and another protamine-like gene, (PL-II), were multicopy and dispersed, as well as associated with a hypervariable element. Some PL-III genes are also arranged in nontandem clusters, and the spacer regions are probably the source of the hypervariable nature of the Southern blots. The arrangement of the protamine-like genes in Mytilus appears to be closer to that reported for histones than protamines; however, their association with a hypervariable element is novel.Key words: mussels, histones, protamine, gene sequence, Southern blot.

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