228 results match your criteria Advances In Marine Biology[Journal]


The population dynamics of the coral reef crisis-Prologue.

Authors:
Bernhard M Riegl

Adv Mar Biol 2020 ;87(1):xxxvii-xl

Department of Marine and Environmental Science, Halmos College of Arts and Sciences, Nova Southeastern University, Dania Beach, FL, United States.

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Spatial and temporal differences in Acropora cervicornis colony size and health.

Adv Mar Biol 2020 7;87(1):83-114. Epub 2020 Oct 7.

Halmos College of Arts and Sciences, Nova Southeastern University, Dania Beach, FL, United States.

Little to no recovery in Acropora cervicornis populations has been documented since the 1970s and 1980s widespread disease events, and disease and predation appear to remain significant drivers of mortality. However, to date, demographic studies of A. cervicornis lack data temporally or spatially sufficient to quantify factors limiting recovery. Read More

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December 2020

Population dynamics of diseased corals: Effects of a Shut Down Reaction outbreak in Puerto Rican Acropora cervicornis.

Adv Mar Biol 2020 7;87(1):61-82. Epub 2020 Oct 7.

Sociedad Ambiente Marino, San Juan, Puerto Rico.

Chronic coral reef degradation has been characterized by a significant decline in the population abundance and live tissue cover of scleractinian corals across the wider Caribbean. Acropora cervicornis is among the species whose populations have suffered an unprecedented collapse throughout the region. This species, which once dominated the shallow-water reef communities, is susceptible to a wide range of stressors, resulting in a general lack of recovery following disturbances. Read More

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December 2020

A tropical eastern Pacific invasive brittle star species (Echinodermata: Ophiuroidea) reaches southeastern Florida.

Adv Mar Biol 2020 30;87(1):443-472. Epub 2020 Sep 30.

National Oceanographic and Atmospheric Administration, National Marine Fisheries Service, Southeast Fisheries Science Center, Miami, FL, United States.

The invasive brittle star Ophiothela mirabilis (family Ophiotrichidae), a tropical Indo-Pacific endemic species, first reported in Atlantic waters off southern Brazil in 2000, has extended its range northward to the Caribbean Sea, to the Lesser Antilles in 2011, and was first reported in south Florida in January 2019. Its occurrence in southeast Florida extends along nearly 70km of coastline, from near the Port of Miami, Miami-Dade County, northward to Deerfield Beach, Broward County. It occurs abundantly as an epizoite on octocorals, attaining population densities of 25 individuals and more per 10-cm long octocoral stem. Read More

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December 2020

Octocoral populations and connectivity in continental Ecuador and Galápagos, Eastern Pacific.

Adv Mar Biol 2020 29;87(1):411-441. Epub 2020 Sep 29.

Department of Marine and Environmental Sciences, Halmos College of Arts and Sciences, Nova Southeastern University, Dania Beach, FL, United States.

Octocorals are important zoobenthic organisms, contributing to structural heterogeneity and species diversity on hardgrounds. Their persistence amidst global coral reef degradation and ocean acidification, has prompted renewed interest in this taxon. Octocoral assemblages at 52 sites in continental Ecuador and Galápagos (23 species, 3742 colonies) were examined for composition, size distributions within and among populations, and connectivity patterns based on ocean current models. Read More

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December 2020

The rise of octocoral forests on Caribbean reefs.

Adv Mar Biol 2020 30;87(1):361-410. Epub 2020 Sep 30.

Department of Biology, California State University, Northridge, CA, United States.

Coral reefs throughout the tropics have experienced large declines in the abundance of scleractinian corals over the last few decades, and some reefs are becoming functionally dominated by animal taxa other than scleractinians. This phenomenon is striking on many shallow reefs in the tropical western Atlantic, where arborescent octocorals now are numerically and functionally dominant. Octocorals are one of several taxa that have been overlooked for decades in analyses of coral reef community dynamics, and our understanding of why octocorals are favoured (whereas scleractinians are not) on some modern reefs, and how they will affect the function of future reef communities, is not commensurate with the task of scientifically responding to the coral reef crisis. Read More

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December 2020

The timing and causality of ecological shifts on Caribbean reefs.

Adv Mar Biol 2020 8;87(1):331-360. Epub 2020 Oct 8.

Department of Biological Sciences, Simon Fraser University, Burnaby, BC, Canada.

Caribbean reefs have experienced unprecedented changes in the past four decades. Of great concern is the perceived widespread shift from coral to macroalgal dominance and the question of whether it represents a new, stable equilibrium for coral-reef communities. The primary causes of the shift-grazing pressure (top-down), nutrient loading (bottom-up) or direct coral mortality (side-in)-still remain somewhat controversial in the coral-reef literature. Read More

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December 2020

Projected shifts in coral size structure in the Anthropocene.

Adv Mar Biol 2020 7;87(1):31-60. Epub 2020 Sep 7.

Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, Australia.

Changes in the size structure of coral populations have major consequences for population dynamics and community function, yet many coral reef monitoring projects do not record this critical feature. Consequently, our understanding of current and future trajectories in coral size structure, and the demographic processes underlying these changes, is still emerging. Here, we provide a conceptual summary of the benefits to be gained from more comprehensive attention to the size of coral colonies in reef monitoring projects, and we support our argument through the use of case-history examples and a simplified ecological model. Read More

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December 2020

Coral community life histories and population dynamics driven by seascape bathymetry and temperature variability.

Authors:
Tim R McClanahan

Adv Mar Biol 2020 24;87(1):291-330. Epub 2020 Oct 24.

Wildlife Conservation Society, Marine Programs, Bronx, NY, United States. Electronic address:

Temperature variability, habitat, coral communities, and fishing intensity are important factors influencing coral responses to climate change. Consequently, chronic and acute sea-surface temperatures (SSTs) and their interactions with habitat and fishing were studied along the East African coast (~400km) by evaluating changes over a ~25-year period in two major reef habitats-island and fringing reefs. These habitats had similar mean and standard deviation temperature measurements but differed in that islands had lower ocean heights and flatter and less right-skewed temperature distributions than fringing reefs. Read More

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December 2020

COTSMod: A spatially explicit metacommunity model of outbreaks of crown-of-thorns starfish and coral recovery.

Adv Mar Biol 2020 ;87(1):259-290

The Environment Institute and School of Biological Sciences, University of Adelaide, Adelaide, SA, Australia.

Outbreaks of the Pacific crown-of-thorns starfish (COTS; Acanthaster cf. solaris) have been responsible for 40% of the decline in coral cover on the GBR over the last 35 years. With the intensity and frequency of bleaching and cyclonic disturbances increasing, effectively managing these outbreaks may allow reefs an opportunity to recover from these cumulative impacts. Read More

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December 2020

Larval connectivity and water quality explain spatial distribution of crown-of-thorns starfish outbreaks across the Great Barrier Reef.

Adv Mar Biol 2020 8;87(1):223-258. Epub 2020 Oct 8.

Australian Research Council Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD, Australia.

Outbreaks of the coral eating crown-of-thorns starfish (COTS; Acanthasts cf. solaris) occur in cyclical waves along the Great Barrier Reef (GBR), contributing significantly to the decline in hard coral cover over the past 30 years. One main difficulty faced by scientists and managers alike, is understanding the relative importance of contributing factors to COTS outbreaks such as increased nutrients and water quality, larval connectivity, fishing pressure, and abiotic conditions. Read More

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December 2020

Biophysical model of coral population connectivity in the Arabian/Persian Gulf.

Adv Mar Biol 2020 17;87(1):193-221. Epub 2020 Aug 17.

Department of Marine and Environmental Sciences, Halmos College of Arts and Sciences, Nova Southeastern University, Dania Beach, FL, United States.

The coral reef ecosystems of the Arabian/Persian Gulf (the Gulf) are facing profound pressure from climate change (extreme temperatures) and anthropogenic (land-use and population-related) stressors. Increasing degradation at local and regional scales has already resulted in widespread coral cover reduction. Connectivity, the transport and exchange of larvae among geographically separated populations, plays an essential role in recovery and maintenance of biodiversity and resilience of coral reef populations. Read More

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December 2020

Considering the rates of growth in two taxa of coral across Pacific islands.

Adv Mar Biol 2020 27;87(1):167-191. Epub 2020 Oct 27.

Scripps Institution of Oceanography, UC San Diego, La Jolla, CA, United States.

Reef-building coral taxa demonstrate considerable flexibility and diversity in reproduction and growth mechanisms. Corals take advantage of this flexibility to increase or decrease size through clonal expansion and loss of live tissue area (i.e. Read More

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December 2020

Population fluctuations of the fungiid coral Cycloseris curvata, Galápagos Islands, Ecuador.

Adv Mar Biol 2020 30;87(1):141-166. Epub 2020 Sep 30.

Department of Marine and Environmental Sciences, Halmos College of Arts and Sciences, Nova Southeastern University, Dania Beach, FL, United States.

Fungiid corals (Cnidaria: Anthozoa: Scleractinia) occur at isolated locations scattered throughout the eastern tropical Pacific. They can be reef-associated but are often found on sand and rubble substrata distant from reef coral habitat. Cycloseris curvata is known in this region from the southern Gulf of California, through Mexico, Costa Rica, and Panamá, and with the southern-most populations occurring in the Galápagos Islands, Ecuador. Read More

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December 2020

Population dynamics and growth rates of free-living mushroom corals (Scleractinia: Fungiidae) in the sediment-stressed reefs of Singapore.

Adv Mar Biol 2020 27;87(1):115-140. Epub 2020 Oct 27.

Experimental Marine Ecology Laboratory, Department of Biological Sciences, National University of Singapore, Singapore, Singapore.

The reefs of Singapore provide an excellent opportunity to study the population dynamics and growth rates of free-living mushroom corals (Fungiidae) under sediment-stressed conditions. Transect surveys at four study sites revealed a total of 11 free-living mushroom coral species-the same 11 species as those found by local studies since the 1980s. The abundance of the four most common species ranged from 1. Read More

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December 2020

Population dynamics of the reef crisis: Consequences of the growing human population.

Adv Mar Biol 2020 20;87(1):1-30. Epub 2020 Aug 20.

Department of Marine Biology and Ecology, Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, United States.

An unequivocal link exists between human population density and environmental degradation, both in the near field (local impacts) and far field (impacts due to teleconnections). Human population is most widely predicted to reach 9-11 billion by 2100, when the demographic transition is expected in all but a handful of countries. Strongest population growth is in the tropics, where coral reefs face dense human population and concomitant heavy usage. Read More

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December 2020

Marine environmental DNA: Approaches, applications, and opportunities.

Adv Mar Biol 2020 21;86(1):141-169. Epub 2020 May 21.

Genomics and Bioinformatics Cluster, Department of Biology, University of Central Florida, Orlando, FL, United States.

Environmental DNA (eDNA) is increasingly being used to document species distributions and habitat use in marine systems, with much of the recent effort focused on leveraging advances in next-generation DNA sequencing to assess and track biodiversity across taxonomic groups. Environmental DNA offers a number of important advantages over traditional survey techniques, including non-invasive sampling, sampling where traditional approaches are impractical or inefficient (e.g. Read More

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The biology and ecology of the banana prawns: Penaeus merguiensis de Man and P. indicus H. Milne Edwards.

Adv Mar Biol 2020 13;86(1):1-139. Epub 2020 Jun 13.

CSIRO Oceans & Atmosphere, Queensland BioSciences Precinct, St Lucia, QLD, Australia.

The two banana prawns Penaeus merguiensis and P. indicus are arguably the most commercially important species of penaeid prawns in the tropical and sub-tropical Indo-West Pacific region. They are fecund, short-lived, and have a complex life history involving offshore spawning, inshore mangrove-lined nursery grounds, and migrations between the two locations. Read More

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Conclusions: Do we eat them or watch them, or both? Challenges for conservation of sharks in Mexico and the NEP.

Adv Mar Biol 2020 4;85(1):93-102. Epub 2020 May 4.

Washington Department of Fish and Wildlife, Fish Management Division, Marine Fish Science Unit, Olympia, WA, United States.

Mexico is a country that makes heavy use of the shark populations that inhabit the southern portion of the Northeast Pacific Ocean (NEP). Shark meat has become an essential food source in this country, while shark fins are used to supply traditional Asian markets. In addition to consumptive utilization, charismatic shark species support an ecotourism industry that has gained significance in several tourist resorts across the country. Read More

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Shark ecotourism in Mexico: Scientific research, conservation, and contribution to a Blue Economy.

Adv Mar Biol 2020 26;85(1):71-92. Epub 2019 Aug 26.

Ecosistemas y Conservación: Proazul Terrestre A.C., Héroes de Independencia, La Paz, BCS, Mexico.

Shark ecotourism has the potential to contribute significantly to local and national economies and conservation, though this depends on a concerted effort to implement evidence-based management. Sharks are key attractions at some of the most important marine ecotourism sites throughout Mexico, focusing particularly on whale sharks, white sharks, hammerhead sharks, and several other reef-associated and pelagic species. This generates important employment opportunities and millions of USD in revenue, but truly implementing ecotourism requires that education and conservation be a part of activities and that these benefit local communities, so that the industry can be socially, economically and ecologically sustainable. Read More

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Fisheries interactions and the challenges for target and nontargeted take on shark conservation in the Mexican Pacific.

Adv Mar Biol 2020 4;85(1):39-69. Epub 2020 May 4.

Instituto Nacional de Pesca y Acuacultura, National Fisheries and Aquaculture Institute, Centro Regional de Investigación Pesquera Ensenada, Ensenada, Baja California, México.

Sharks have been of great cultural and socioeconomic importance in Mexico since the late 19th century, when the first fisheries were prosecuted in the Gulf of California to export fins to China. Mexican shark and ray fisheries are classified mainly by the size of the fishing vessel and include small- (7.5-10m), medium- (10-27m), and large-sized (>27m) fisheries. Read More

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Shark movement patterns in the Mexican Pacific: A conservation and management perspective.

Adv Mar Biol 2020 20;85(1):1-37. Epub 2020 May 20.

Biotelemetry Consultants, Petaluma, CA, United States; MigraMar, Olema, CA, United States.

Marine animal tracking has become one of the major tools used to understand the behavior and ecology of a multitude of species in the ocean, thus there is an increasing body of knowledge about this subject worldwide, particularly for sharks. Nevertheless, little was known of the movement patterns of shark in the Mexican Pacific (MXP) and Gulf of California (GOC), except for the pioneering work carried out in the 1980s on the movements of scalloped hammerhead sharks in El Bajo Espiritu Santo and other islands in the region, as well as ongoing studies on white shark movements, migratory patterns and behavior off Isla Guadalupe. Here we present an overview of previous studies on the movements of sharks, as well as a comprehensive description of new studies currently being carried out by our research group at Pelagios Kakunjá on several species of sharks in the MXP. Read More

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Predatory marine bivalves: A review.

Adv Mar Biol 2019 15;84:1-98. Epub 2019 Nov 15.

Department of Animal Biology, University of Campinas (Unicamp), Brazil.

Most bivalves are suspension feeders. On the deep sea floor, however, some are predators, typically of meiobenthic crustaceans: copepods, cumaceans and ostracods. Propeamusiid scallops are one such group of predators. Read More

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Shark ecology, the role of the apex predator and current conservation status.

Adv Mar Biol 2019 12;83:61-114. Epub 2019 Sep 12.

Instituto Nacional de Pesca (INAPESCA), Centro Regional de Investigacion Pesquera (CRIP), La Cruz de Huanacaxtle, Nayarit, Mexico.

Feeding studies, since traditional stomach content analysis to stable isotopes analyses, provides insights into the trophic relationship among the apex predators and the ecosystems they inhabit. The Pacific Coast of Mexico (PCM) is inhabited by 62 known species (or 12%) of living sharks, which belong to 21 families and 34 genera. We divide the Pacific Coast of Mexico (PCM) into four regions for consideration: (1) the western coast of Baja California (WcBJ), (2) the Gulf of California (GC), (3) the Central Pacific Mexican (CPM), and (4) the Gulf of Tehuantepec (GT). Read More

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October 2019

Conservation genetics of elasmobranchs of the Mexican Pacific Coast, trends and perspectives.

Adv Mar Biol 2019 12;83:115-157. Epub 2019 Sep 12.

Molecular Ecology Lab, College of Science and Engineering, Flinders University, Adelaide, SA, Australia. Electronic address:

One of the most critical threats to biodiversity is the high extinction rate driven by human activities. Reducing extinction rates requires the implementation of conservation programmes based on robust scientific data. Elasmobranchs are important ecological components of the ocean, and several species sustain substantial economic activities. Read More

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October 2019

Biodiversity and conservation of sharks in Pacific Mexico.

Adv Mar Biol 2019 3;83:11-60. Epub 2019 Sep 3.

Coordination of Mexican CITES Scientific Authority, National Commission for the Knowledge and Use of Biodiversity (CONABIO), Mexico City, México.

Mexico is home to a broad biodiversity of shark species, and more than half of the sharks in Mexican waters are distributed in the Mexican Pacific, with over 62 species recorded. This high biodiversity is the result of numerous and diverse marine and coastal environments, including the dynamic Mexican seas, where circulation and spatial variation of oceanic currents is complex, and the seasonal variation of isotherms can be substantial. In the Mexican Pacific we can distinguish some patterns of species distribution, with temperate water and subtropical species found in the northern regions, and tropical conditions and species found in the south. Read More

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October 2019

Introduction: The sharks of Pacific Mexico and their conservation: Why should we care?

Adv Mar Biol 2019 4;83:1-9. Epub 2019 Sep 4.

Seattle Aquarium, Department of Conservation Programs and Partnerships, Seattle, WA, United States.

Sharks exhibit a broad range of body forms, occupy diverse ecological niches, and are found in every ocean on earth. They have roles as both predator and prey and have an evolutionary history far longer than that of human beings. As long as humans have interacted with the ocean they have interacted with sharks and, as a result, sharks have featured in the mythology, history, and fisheries of diverse cultures around the world. Read More

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October 2019

Forever young: The successful story of a marine biotic index.

Adv Mar Biol 2019 10;82:93-127. Epub 2019 Jun 10.

AZTI, Marine Research Division, Pasaia, Spain.

In 2000, the AZTI's Marine Biotic Index (AMBI) was published and was one of a number of marine benthic indices development to assess the ecological status of soft-bottom macroinvertebrates. This index, and its derivatives, has been very successful in its application to different geographical areas, across the world, as well as to different environments, from the intertidal to the abyssal, or from tidal freshwater to offshore habitats. In this review, we explain the story behind the AMBI development, and look for an explanation of the index's success. Read More

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Predatory zooplankton on the move: Themisto amphipods in high-latitude marine pelagic food webs.

Adv Mar Biol 2019 24;82:51-92. Epub 2019 Apr 24.

British Antarctic Survey, Natural Environment Research Council, Cambridge, United Kingdom.

Hyperiid amphipods are predatory pelagic crustaceans that are particularly prevalent in high-latitude oceans. Many species are likely to have co-evolved with soft-bodied zooplankton groups such as salps and medusae, using them as substrate, for food, shelter or reproduction. Compared to other pelagic groups, such as fish, euphausiids and soft-bodied zooplankton, hyperiid amphipods are poorly studied especially in terms of their distribution and ecology. Read More

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