The talk with present the key results of the IPCC Working Group III 5th assessment report. Concluding four years of intense scientific collaboration by hundreds of authors from around the world, the report responds to the request of the world's governments for a comprehensive, objective and policy neutral assessment of the current scientific knowledge on mitigating climate change. The report has been extensively reviewed by experts and governments to ensure quality and comprehensiveness.

Climate change 2014 - Mitigation of climate change

Beginning with Emlen (1966) and MacArthur and Pianka (1966) and extending through the last ten years, several authors have sought to predict the foraging behavior of animals by means of mathematical models. These models are very similar,in that they all assume that the fitness of a foraging animal is a function of the efficiency of foraging measured in terms of some "currency" (Schoener, 1971) -usually energy- and that natural selection has resulted in animals that forage so as to maximize this fitness. As a result of these similarities, the models have become known as "optimal foraging models"; and the theory that embodies them, "optimal foraging theory." The situations to which optimal foraging theory has been applied, with the exception of a few recent studies, can be divided into the following four categories: (1) choice by an animal of which food types to eat (i.e., optimal diet); (2) choice of which patch type to feed in (i.e., optimal patch choice); (3) optimal allocation of time to different patches; and (4) optimal patterns and speed of movements. In this review we discuss each of these categories separately, dealing with both the theoretical developments and the data that permit tests of the predictions. The review is selective in the sense that we emphasize studies that either develop testable predictions or that attempt to test predictions in a precise quantitative manner. We also discuss what we see to be some of the future developments in the area of optimal foraging theory and how this theory can be related to other areas of biology. Our general conclusion is that the simple models so far formulated are supported are supported reasonably well by available data and that we are optimistic about the value both now and in the future of optimal foraging theory. We argue, however, that these simple models will requre much modification, espicially to deal with situations that either cannot easily be put into one or another of the above four categories or entail currencies more complicated that just energy.

Citation classic - optimal foraging - a selective review of theory and tests

DNA sequencing with chain terminating inhibitors

Thank you for reading computation and interpretation of biological statistics of fish populations. As you may know, people have search numerous times for their favorite books like this computation and interpretation of biological statistics of fish populations, but end up in harmful downloads. Rather than enjoying a good book with a cup of coffee in the afternoon, instead they cope with some infectious bugs inside their laptop.

Computation And Interpretation Of Biological Statistics Of Fish Populations

Marine microscopic plastic (microplastic) debris is a modern societal issue, illustrating the challenge of balancing the convenience of plastic in daily life with the prospect of causing ecological harm by careless disposal. Here we develop the concept of microplastic as a complex, dynamic mixture of polymers and additives, to which organic material and contaminants can successively bind to form an 'ecocorona', increasing the density and surface charge of particles and changing their bioavailability and toxicity. Chronic exposure to microplastic is rarely lethal, but can adversely affect individual animals, reducing feeding and depleting energy stores, with knock-on effects for fecundity and growth. We explore the extent to which ecological processes could be impacted, including altered behaviours, bioturbation and impacts on carbon flux to the deep ocean. We discuss how microplastic compares with other anthropogenic pollutants in terms of ecological risk, and consider the role of science and society in tackling this global issue in the future.

Interactions of microplastic debris throughout the marine ecosystem

Akumulasi logam berat pada kerang hijau (Perna viridis) di Perairan Teluk Jakarta

Perairan laut tropis seperti di Indonesia yang memiliki variasi lingkungan yang hampir konstan– diduga periode pemijahan karang melebar sampai beberapa bulan dan pada fase bulan yang berbeda, sehingga sulit menentukan waktu pemijahannya dalam skala bulan, hari dan jam. Penelitian ini akan memberikan informasi pola reproduksi dan sinkronisasi pemijahan beberapa jenis karang Acropora spp di Kepulauan Spermonde, Makassar. Sebanyak tujuh jenis karang Acropora spp . diamati kematangan atau kemunculan gonad dan pemijahannya di alam (in situ) dan atau di laboratorium (ex situ) di Marine Station Universitas Hasanuddin. Pola reproduksi menunjukkan spawning berlangsung setiap musim hujan pada bulan Februari-Maret selama tiga tahun berturut-turut. Pemijahan berlangsung secara sinkron dan broadcasting pada awal bulan purnama (0 BP sampai +2 BP), pada jam 18:10–19:00). Bersamaan dengan itu, kondisi lingkungan pemijahan berlangsung  saat puncak pasang tinggi dengan suhu rata-rata harian perairan 30,3oC dan curah hujan yang masih tinggi di bulan Maret. Informasi ilmiah ini akan bermanfaat untuk mengembangkan riset dan tehnik reproduksi karang di alam dan laboratorium sebagai upaya merestorasi dan merepopulasi jenis karang tertentu. Kata kunci : Acropora spp, reproduksi seksual, Kepulauan Spermonde It has been thought that Indonesian marine tropical waters have less environmental variability, so that spawning period of coral extend for several months and occured during different lunar phases. Therefore the timing of coral spawning in a year cannot be predicted especially for monthly, daily and hourly scales. This study was aimed to investigate the reproductive pattern, and the environmental cues of Acropora spp . in Spermonde Islands  reefs of Makassar. Spawning corals have been determined the presence of mature gonad and spawning event in their habitats (in situ) and in the laboratory (ex situ) of Marine Station of Barrang Lompo Island, Hasanuddin University. Here we showed that seven species of Acropora spp . spawned in February and March of rainy season for consecutive three years (2010, 2011, 2012). The multispecific broadcasting spawning took place in lunar period (0–2 AFM) at 06:10–07:00 pm). The spawning time occured in high tide and the temperature was 30,3 o C. This study will be useful for development of coral reproduction research and technique in both field and laboratory as an effort to restore coral reef and enhance coral population in particular. Keywords : Acropora spp, sexual reproduction, Spermonde Islands

Reproduction Pattern and Multispecific Spawning of Acropora spp. in Spermonde Islands Reef, Indonesia (Pola Reproduksi dan Pemijahan Multispecific Acropora Spp. di Kepulauan Spermonde, Indonesia)

Green turtle (Chelonia mydas; Testudines) is included in the group of polyandry animals, which is single female mated with many male. DNA polymorphism method generally considered to have a high degree of accuracy as compared to other methods to elucidate polyandry phenomena on many animals. In this research, three microsatellite loci were used to identify the number and frequency of genotypes per locus, the number and frequency alleles per locus, and genotypes and number of alleles in the nest. The purpose of this research was to study the reproductive pattern of Chelonia mydas and compensation eggs of males from hatchling's population in turtle conservation area of Pangumbahan Coastal Park, West Java. The result showed that from 10 nests, we could find 37 genotypes with 11 alleles for D108 locus, 21 genotypes with 9 alleles for B103 locus, and 27 genotypes with 9 alleles for C102 locus. The alleles number of each nest was more than 5 alleles for 5 nests, and more than 4 alleles for the remaining nests. Based on the probabilities of alleles contribution of each parent, the green turtle is a polyandry animal.

https://journal.ipb.ac.id/index.php/hayati/article/download/7319/pdf

Microsatellite DNA Analysis on the Polyandry of Green Sea Turtle Chelonia mydas

Soft coral is predicted to outcompete with hard coral in future ocean acidification scenarios. Beside the biological resilience shown in acidic conditions, soft corals ability to maintain or compete for space is shown to relate with their ability to produce cytotoxic cembranoid-type compounds. The aim of this study was to investigate composition of cytotoxic cembranoid compounds of Sarcop h yton glaccum soft coral exposed to current and predicted future ocean acidification scenarios. Sarcophyton glaccum colonies were acclimated along a pH gradient to simulate predicted increases in ocean acidification: natural/current (pH 8,2), slight increase in acidification (pH 8.0 year -1 2060), and moderate increase in acidification (pH 7,8 year­ -1 2100). Cembranoid composition was determined by quantitative Nuclear Magnetic Resonance spectroscopy while cytotoxic activity was determined against tumor cell lines. Results of the study showed cytotoxicity and sarcophytoxide (the most active cembranoid compound in observed Sarcophyton glaccum) were both found to be higher at pH 8,0. However, a further increase of acidification resulted on a reduction of both the cytotoxicity and sarcophytoxide production. This suggests that acidification pressures affect directly the defense system metabolism of Sarcophyton glaccum and that while they may be resilient to small decreases in pH, their ability to compete for space may be hampered by more pronounced changes. Keywords: Cembranoids; Cytotoxic; Sarcophyton glaccum; Seawater Acidification; Soft Coral.

/pdf/bioactive-cembranoid-composition-in-the-soft-coral-of-1na0r23imr.pdf

Bioactive Cembranoid Composition in the Soft Coral of Sarcophyton glaccum on The Response to Changing pH

Tolerance to fluctuating environmental conditions is regarded as a key trait of successful marine invasive species as it presumably promotes survival in recipient habitats, which are often anthropogenically impacted systems such as harbours. Little is known, however, about how transport of fouling organisms on ship hulls influences the condition of the transported individuals and how this is related to their tolerance to environmental stress. We investigated the influence of transport on a ship hull on the ability of Asian green mussels, Perna viridis, to survive low concentrations of dissolved oxygen (0.5 and 1 mg/l DO). This was done by comparing the performance under stress in mussels from a eutrophic habitat in Jakarta Bay to that of mussels that had spent their lifetime on a passenger ferry crossing the Indonesian Archipelago from Jakarta in the west to West Papua in the east. We found that the mussels that came from the eutrophic habitat survived twice as long as mussels from the ferry when exposed to low oxygen concentrations. Mussels collected from the ferry, however, had a generally higher byssus production under experimental conditions, which can be attributed to their life on a moving object where they are exposed to drag. We suggest that Jakarta Bay mussels survived oxygen stress longer because they had higher Body Condition Indices than their conspecifics from the ship hull and thus had more energy available for stress compensation. These results show that transport on ship hulls can weaken the robustness of P. viridis, if the journey leads the ship through areas of low food supply for mussels, if the stopovers in eutrophic coastal ecosystems are short and if the sailing times are long (several weeks). This finding might explain the lack of establishments of P. viridis in tropical areas of Australia, from where repeated incursions have been reported.

Neviaty P. Zamani

Papers

Akumulasi logam berat pada kerang hijau (Perna viridis) di Perairan Teluk Jakarta

Reproduction Pattern and Multispecific Spawning of Acropora spp. in Spermonde Islands Reef, Indonesia (Pola Reproduksi dan Pemijahan Multispecific Acropora Spp. di Kepulauan Spermonde, Indonesia)

Microsatellite DNA Analysis on the Polyandry of Green Sea Turtle Chelonia mydas

Bioactive Cembranoid Composition in the Soft Coral of Sarcophyton glaccum on The Response to Changing pH

Tolerance to hypoxia in Asian green mussels, Perna viridis, collected from a ship hull in the non-native range in eastern Indonesia