Results 61 to 70 of about 95,405 (215)
Geological Journal, EarlyView.In this study, we re‐examine the depositional architecture of the Erfoud limestone in Morocco. Introducing new biostratigraphic constraints from chitinozoan assemblages, we show that Katian to Hirnantian bryozoan‐pelmatozoan meadows reflect flooding events linked to a series of interglacial transgressions known to have occurred immediately prior to the
Philippe Razin +4 more
wiley +1 more source
Journal of Quaternary Science, EarlyView.ABSTRACT Marine isotope substage 11c (~426–366 ka) is widely regarded as the most recent Pleistocene interglacial that is broadly analogous to the Holocene. The timing and magnitude of sea‐level changes during MIS 11 have been much debated, particularly concerning whether sea levels were significantly higher than during the Holocene. Empirical evidence
Tom S. White +3 more
wiley +1 more source
Periostracal mineralization in the gastrochaenid bivalve Spengleria [PDF]
We investigated the spikes on the outer shell surface of the endolithic gastrochaenid bivalve genus Spengleria with a view to understand the mechanism by which they form and evaluate their homology with spikes in other heterodont and palaeoheterodont ...
Checa, Antonio G., Harper, Elizabeth M.
core +1 more source
Optimal designs of mollusk shells from bivalves to snails [PDF]
Scientific Reports, 2017 AbstractBivalve, ammonite and snail shells are described by a small number of geometrical parameters. Raup noted that the vast majority of theoretically possible shell forms do not occur in nature. The constraint factors that regulate the biased distribution of natural form have long since been an open problem in evolution.
Takuya Okabe, Jin Yoshimura
openaire +2 more sources
Microbial communities and functional diversity in seafood
JSFA reports, EarlyView.Abstract Functional diversity encompasses ecosystem processes that enhance adaptability to environmental change. This study explores the diversity of microorganisms associated with seafood. In this paper, we present our knowledge of microbial diversity in relation to seafood.
Christian Larbi Ayisi +3 more
wiley +1 more source
Economic analysis of five oyster farms in Southern Brazil
Agropecuária Catarinense, 2021 The article describes a comparative economic analysis executed on five oyster farms in Florianópolis, on the southern coast of Brazil. The analysis was carried out based on interviews with the producers and the data were grouped into components of the ...
Felipe Matarazzo Suplicy
doaj
Taphonomic processes in recent thanatocenoses at playa el pelícano, baja california
Ciencias Marinas, 2000 The northeastern coast of Baja California (Mexico) has extensive surface mollusk-shell deposits in exposed, semiprotected or protected sandy beaches.
G Avila-Serrano, MA Téllez-Duarte
doaj +1 more source
Environmental Toxicology, EarlyView.ABSTRACT Over the past decades, the growth in human population and economic activities has led to an increase in maritime traffic. This rise puts additional pressure on marine environments, vessel fuel spills being considered to have a major impact on the ecosystem.
Carlos Valiente‐Diaz +2 more
wiley +1 more source
Metal trace elements in mussels in Urubuqueçaba Island, Santos Bay, Brazil [PDF]
Pesquisa Agropecuária Brasileira, 2017 : The objective of this work was to verify the existence of bioaccumulation in mussels of the species Perna perna, by determining the concentration of metal trace elements, in Urubuqueçaba Island, Santos Bay, Santos, SP, Brazil. Mussels were collected in
Marcos Bührer Campolim +4 more
doaj +2 more sources
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