Chronic effect of cadmium in sediments on colonization by benthic marine organisms: An evaluation of the role of interstitial cadmium and acid-volatile sulfide in biological availability

1996 ◽  
Vol 15 (12) ◽  
pp. 2126-2137 ◽  
Author(s):  
David J. Hansen ◽  
John D. Mahony ◽  
Walter J. Berry ◽  
Sandra J. Benyi ◽  
Jeffrey M. Corbin ◽  
...  
Keyword(s):  
Marine Organisms ◽  
Acid Volatile Sulfide ◽  
Biological Availability ◽  
Chronic Effect

The Role of Symbioses in the Adaptation and Stress Responses of Marine Organisms

2020 ◽  
Vol 12 (1) ◽  
pp. 291-314 ◽  
Author(s):  
Amy Apprill
Keyword(s):  
Coral Reef ◽  
Significant Role ◽  
Stress Responses ◽  
Current Knowledge ◽  
Technological Development ◽  
Marine Organisms ◽  
Anthropogenic Change ◽  
Subject Knowledge ◽  
Coral Reef Ecosystems

Ocean ecosystems are experiencing unprecedented rates of climate and anthropogenic change, which can often initiate stress in marine organisms. Symbioses, or associations between different organisms, are plentiful in the ocean and could play a significant role in facilitating organismal adaptations to stressful ocean conditions. This article reviews current knowledge about the role of symbiosis in marine organismal acclimation and adaptation. It discusses stress and adaptations in symbioses from coral reef ecosystems, which are among the most affected environments in the ocean, including the relationships between corals and microalgae, corals and bacteria, anemones and clownfish, and cleaner fish and client fish. Despite the importance of this subject, knowledge of how marine organisms adapt to stress is still limited, and there are vast opportunities for research and technological development in this area. Attention to this subject will enhance our understanding of the capacity of symbioses to alleviate organismal stress in the oceans.

The Role of ‘Background Stressors’ in the Formation of Annoyance and Stress Responses

1994 ◽  
Vol 13 (3) ◽  
pp. 95-101 ◽  
Author(s):  
S. Benton ◽  
H.G. Leventhall
Keyword(s):  
Coping Strategies ◽  
Stress Responses ◽  
Low Frequency ◽  
Frequency Noise ◽  
Low Frequency Noise ◽  
Coping Response ◽  
Chronic Effect ◽  
Low Level

Background stresses have a chronic effect on our lives and stimulate the development of coping strategies. The paper considers low level low frequency noise (LLLFN) as a background stressor and the coping response to it of either improving sensitivity as an aid to location or reducing sensitivity in an attempt to habituate. It is considered that LLLFN is a proven background stressor which is not evaluated correctly by conventional noise measures.

Toxicity of cadmium in sediments: The role of acid volatile sulfide

1990 ◽  
Vol 9 (12) ◽  
pp. 1487-1502 ◽  
Author(s):  
Dominic M. Di Toro ◽  
John D. Mahony ◽  
David J. Hansen ◽  
K. John Scott ◽  
Michael B. Hicks ◽  
...  
Keyword(s):  
Acid Volatile Sulfide

scholarly journals The Second Skin: Ecological Role of Epibiotic Biofilms on Marine Organisms

2012 ◽  
Vol 3 ◽  
Author(s):  
Martin Wahl ◽  
Franz Goecke ◽  
Antje Labes ◽  
Sergey Dobretsov ◽  
Florian Weinberger
Keyword(s):  
Marine Organisms ◽  
Ecological Role

scholarly journals Peran Ekosistem Hutan Mangrove Sebagai Habitat Untuk Organisme Laut

2017 ◽  
Vol 17 (2) ◽  
Author(s):  
Karimah, M. Fahrurrozi
Keyword(s):  
Forest Ecosystem ◽  
Mangrove Forest ◽  
Descriptive Analysis ◽  
Mangrove Ecosystem ◽  
Marine Organisms ◽  
Mangrove Forests ◽  
Land Area ◽  
Portunus Pelagicus ◽  
Important Habitat

AbstrakTulisan ini menjelaskan tentang peran ekosistem hutan mangrove sebagai habitat untuk organisme laut dengan menggunaan analisis diskriptif. Data diambil dari literatur-literatur terkait yang kemudian didiskripsikan lebih lanjut. Data yang diperoleh menunjukkan bahwa hutan mangrove di Indonesia diperkirakan mencakup area seluas 4,25 juta hektar, hanya sekitar 2% dari seluruh wilayah daratan, namun nilai ekonomi dan lingkungannya tidak boleh di bawah perkiraan, oleh karena itu kehadirannya harus dijaga. Sebagai zona transisi antara ekosistem terestrial dan laut, ekosistem mangrove telah lama dikenal memiliki banyak fungsi dan merupakan penghubung penting dalam menjaga keseimbangan biologis ekosistem pesisir. Ekosistem hutan mangrove merupakan habitat penting bagi organisme laut. Umumnya didominasi oleh moluska dan krustasea. Moluska ini terdiri terutama dari Gastropoda dan selanjutnya didominasi oleh dua keluarga, yaitu Potamidae dan Ellobiidae. Sedangkan untuk krustasea, terutama terdiri dari Brachyura. Beberapa fauna mangrove juga dikenal sebagai bahan habis pakai dan secara ekonomi penting seperti Terebralia palustris, Telescopium telescopium (Gastropoda), Anadara kuno, Coaxans polymesoda, Ostrea cucullata (Bivalvia), dan Scylla serrate, S. olivacea, Portunus pelagicus, Epixanthus dentatus, Labnanium politum (Crustacea).Kata kunci : hutan mangrove, ekosistem mangrove, moluska                                                                     Abstract              This paper describes the role of the mangrove forest ecosystem as a habitat for marine organisms by using descriptive analysis. The data are drawn from related literatures which are further described. The data obtained indicate that mangrove forests in Indonesia are estimated to cover an area of 4.25 million hectares, only about 2% of the entire land area, but its economic and environmental value should not be underestimated, therefore its presence must be maintained. As a transition zone between terrestrial and marine ecosystems, the mangrove ecosystem has long been known to have many functions and is an important link in maintaining the biological balance of coastal ecosystems. The mangrove forest ecosystem is an important habitat for marine organisms. Generally dominated by molluscs and crustaceans. This mollusc consists mainly of Gastropods and is further dominated by two families, namely Potamidae and Ellobiidae. As for crustaceans, mainly consisting of Brachyura. Some mangrove fauna are also known as economical and economically important materials such as Terebralia palustris, Telescopium telescopium (Gastropoda), ancient Anadara, Coaxans polymesoda, Ostrea cucullata (Bivalvia), and Scylla serrate, S. olivacea, Portunus pelagicus, Epixanthus dentatus, Labnanium politic (Crustacea).Keywords: mangrove forest, mangrove ecosystem, mollusk,

Predicting the acute toxicity of copper in freshwater sediments: Evaluation of the role of acid-volatile sulfide

1993 ◽  
Vol 12 (2) ◽  
pp. 315-320 ◽  
Author(s):  
Gerald T. Ankley ◽  
Vincent R. Mattson ◽  
Edward N. Leonard ◽  
Corlis W. West ◽  
Jon L. Bennett
Keyword(s):  
Acute Toxicity ◽  
Acid Volatile Sulfide ◽  
Freshwater Sediments

scholarly journals New Drugs from the Sea: Pro-Apoptotic Activity of Sponges and Algae Derived Compounds

Marine Drugs ◽  
2019 ◽  
Vol 17 (1) ◽  
pp. 31 ◽  
Author(s):  
Giuseppe Ercolano ◽  
Paola De Cicco ◽  
Angela Ianaro
Keyword(s):  
Molecular Mechanisms ◽  
Human Cancer ◽  
Biological Activities ◽  
Mitochondrial Pathway ◽  
Marine Organisms ◽  
New Drugs ◽  
Bioactive Molecules ◽  
Bioactive Metabolites ◽  
Apoptotic Activity

Natural compounds derived from marine organisms exhibit a wide variety of biological activities. Over the last decades, a great interest has been focused on the anti-tumour role of sponges and algae that constitute the major source of these bioactive metabolites. A substantial number of chemically different structures from different species have demonstrated inhibition of tumour growth and progression by inducing apoptosis in several types of human cancer. The molecular mechanisms by which marine natural products activate apoptosis mainly include (1) a dysregulation of the mitochondrial pathway; (2) the activation of caspases; and/or (3) increase of death signals through transmembrane death receptors. This great variety of mechanisms of action may help to overcome the multitude of resistances exhibited by different tumour specimens. Therefore, products from marine organisms and their synthetic derivates might represent promising sources for new anticancer drugs, both as single agents or as co-adjuvants with other chemotherapeutics. This review will focus on some selected bioactive molecules from sponges and algae with pro-apoptotic potential in tumour cells.

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