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Articles 2731 - 2760 of 7414

Full-Text Articles in Marine Biology

Collaboration, Creativity, Compromise, And Conclusion: U.S. Coast Guard Modifies The Port Of Miami Anchorage Area, Paul D. Lehmann Apr 2018

Collaboration, Creativity, Compromise, And Conclusion: U.S. Coast Guard Modifies The Port Of Miami Anchorage Area, Paul D. Lehmann

Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures

No abstract provided.


Ichthyology Field Notebooks Spreadsheet, Karisa Boyer Apr 2018

Ichthyology Field Notebooks Spreadsheet, Karisa Boyer

Ichthyology Collection

No abstract provided.


Barriers To The Elimination Of Plastic In Single Use Beverage Containers In Byron Bay, Nsw, Katherine Senechal Apr 2018

Barriers To The Elimination Of Plastic In Single Use Beverage Containers In Byron Bay, Nsw, Katherine Senechal

Independent Study Project (ISP) Collection

Plastic debris is a global threat to the natural environment. The accumulation of plastic debris has resulted in the destruction of marine habitat as well as a threat to marine wildlife. Single use plastics, including plastics associated with single use food and beverage containers are contributing to a considerable amount of debris and other litter in the world’s oceans. As awareness of this issue spreads, both large corporations and small businesses are beginning to transition to plastic alternatives for their single use beverage containers. In Byron Bay, Australia, an area of increasing environmental awareness, businesses are beginning to reduce single …


Takataka Talk: Waste Presence And Management In Ushongo, Kristen Jones Apr 2018

Takataka Talk: Waste Presence And Management In Ushongo, Kristen Jones

Independent Study Project (ISP) Collection

Increasingly high levels of waste are being generated each year, resulting in millions of tonnes of plastic and other debris ending up in marine and coastal environments. The impacts of the debris on these environments are wide ranging, affecting both environmental health and human wellbeing. Still though, there is a lack of information concerning the presence and effect of garbage in many coastal and marine ecosystems around the globe. This project studied the presence and management of coastal waste along a small portion of the coast of Tanzania, near the village of Ushongo. General distribution, level, and type of garbage …


The Impact Of Invasive Lionfish On The Feeding Performance Of Endemic Spotted Scorpionfish, Nathaniel Zbasnik Apr 2018

The Impact Of Invasive Lionfish On The Feeding Performance Of Endemic Spotted Scorpionfish, Nathaniel Zbasnik

Masters Theses & Specialist Projects

Invasive species, such as the red lionfish, Pterois volitans, are damaging many ecosystems around the world by out-competing native species. However, little work has been done to determine if P. volitans have a direct influence on the feeding performance of native species with which they compete. This study examines the feeding performance in terms of suction pressure, kinematic timing, and excursion distances of spotted scorpionfish, Scorpaena plumieri. Through multiple trials it was examined how S. plumieri modulate their kinematic behavior in response to P. volitans and a conspecific. The creation of a smaller buccal cavity and a decrease in time …


Assessing Phytoplankton Nutritional Status And Potential Impact Of Wet Deposition In Seasonally Oligotrophic Waters Of The Mid-Atlantic Bight, P. N. Sedwick, P. W. Bernhardt, M. R. Mulholland, R. G. Najjar, L. M. Blumen, B. M. Sohst, C. Sookhdeo, Brittany Widner Apr 2018

Assessing Phytoplankton Nutritional Status And Potential Impact Of Wet Deposition In Seasonally Oligotrophic Waters Of The Mid-Atlantic Bight, P. N. Sedwick, P. W. Bernhardt, M. R. Mulholland, R. G. Najjar, L. M. Blumen, B. M. Sohst, C. Sookhdeo, Brittany Widner

OES Faculty Publications

To assess phytoplankton nutritional status in seasonally oligotrophic waters of the southern Mid-Atlantic Bight, and the potential for rain to stimulate primary production in this region during summer, shipboard bioassay experiments were performed using natural seawater and phytoplankton collected north and south of the Gulf Stream. Bioassay treatments comprised iron, nitrate, iron + nitrate, iron + nitrate + phosphate, and rainwater. Phytoplankton growth was inferred from changes in chlorophyll a, inorganic nitrogen, and carbon-13 uptake, relative to unamended control treatments. Results indicated the greatest growth stimulation by iron + nitrate + phosphate, intermediate growth stimulation by rainwater, modest growth …


Wrack Lines Spring-Summer 2018, Judy Benson, Ann Baldelli, Bill Hanrahan, Ellen Johnson Apr 2018

Wrack Lines Spring-Summer 2018, Judy Benson, Ann Baldelli, Bill Hanrahan, Ellen Johnson

Wrack Lines

From Sea to Table: Fish, Shellfish and sea vegetables from local waters


Mesoscale Effects On Carbon Export: A Global Perspective, Cheryl S. Harrison, Matthew C. Long, Nicole S. Lovenduski, Jefferson K. Moore Apr 2018

Mesoscale Effects On Carbon Export: A Global Perspective, Cheryl S. Harrison, Matthew C. Long, Nicole S. Lovenduski, Jefferson K. Moore

School of Earth, Environmental, & Marine Sciences Faculty Publications

Carbon export from the surface to the deep ocean is a primary control on global carbon budgets and is mediated by plankton that are sensitive to physical forcing. Earth system models generally do not resolve ocean mesoscale circulation ((10–100) km), scales that strongly affect transport of nutrients and plankton. The role of mesoscale circulation in modulating export is evaluated by comparing global ocean simulations conducted at 1∘ and 0.1∘ horizontal resolution. Mesoscale resolution produces a small reduction in globally integrated export production (<2%); however, the impact on local export production can be large (±50%), with compensating effects in different ocean basins. With mesoscale resolution, improved representation of coastal jets block off-shelf transport, leading to lower export in regions where shelf-derived nutrients fuel production. Export is further reduced in these regions by resolution of mesoscale turbulence, which restricts the spatial area of production. Maximum mixed layer depths are narrower and deeper across the Subantarctic at higher resolution, driving locally stronger nutrient entrainment and enhanced summer export production. In energetic regions with seasonal blooms, such as the Subantarctic and North Pacific, internally generated mesoscale variability drives substantial interannual variation in local export production. These results suggest that biogeochemical tracer dynamics show different sensitivities to transport biases than temperature and salinity, which should be considered in the formulation and validation of physical parameterizations. Efforts to compare estimates of export production from observations and models should account for large variability in space and time expected for regions strongly affected by mesoscale circulation.


Global Conservation Status Of Marine Pufferfishes (Tetraodontiformes: Tetraodontidae), Emilie Stump, Gina M. Ralph, Mia T. Comeros-Raynal, Keiichi Matsuura, Kent E. Carpenter Apr 2018

Global Conservation Status Of Marine Pufferfishes (Tetraodontiformes: Tetraodontidae), Emilie Stump, Gina M. Ralph, Mia T. Comeros-Raynal, Keiichi Matsuura, Kent E. Carpenter

Biological Sciences Faculty Publications

Puffers are biologically and ecologically fascinating fishes best known for their unique morphology and arsenal of defenses including inflation and bioaccumulation of deadly neurotoxins. These fishes are also commercially, culturally, and ecologically important in many regions. One-hundred-and-fifty-one species of marine puffers were assessed against the International Union for Conservation of Nature (IUCN) Red List Criteria at a 2011 workshop held in Xiamen, China. Here we present the first comprehensive review of puffer geographic and depth distribution, use and trade, and habitats and ecology and a summary of the global conservation status of marine puffers, determined by applying the International Union …


Interactive Effects Of Hypoxia And Pcb Co-Exposure On Expression Of Cyp1a And Its Potential Regulators In Atlantic Croaker Liver, Md. Saydur Rahman, Peter Thomas Apr 2018

Interactive Effects Of Hypoxia And Pcb Co-Exposure On Expression Of Cyp1a And Its Potential Regulators In Atlantic Croaker Liver, Md. Saydur Rahman, Peter Thomas

School of Earth, Environmental, & Marine Sciences Faculty Publications

Although marine and coastal environments which are contaminated with xenobiotic organic compounds often become hypoxic during the summer, the interactive effects of hypoxia and xenobiotic exposure on marine species such as teleost fishes remain poorly understood. The expression and activity of monooxygenase enzyme cytochrome P450-1A (CYP1A) in fishes are upregulated by exposure to polychlorinated biphenyls (PCBs), whereas they are down-regulated during hypoxia exposure. We investigated the interactive effects of hypoxia and PCB co-exposure on hepatic CYP1A expression in Atlantic croaker and on potential regulators of CYP1A. Croaker were exposed to hypoxia (1.7 mg/L dissolved oxygen), 3,3′,4,4′-tetrachlorobiphenyl (PCB 77, dose: 2 …


Use Of The Sea Hare (Aplysia Fasciata) In Marine Pollution Biomonitoring Of Harbors And Bays, Frank J. Dirrigl, Zachariah Badaoui, Carlos Tamez, Christopher Vitek, Jason Parsons Apr 2018

Use Of The Sea Hare (Aplysia Fasciata) In Marine Pollution Biomonitoring Of Harbors And Bays, Frank J. Dirrigl, Zachariah Badaoui, Carlos Tamez, Christopher Vitek, Jason Parsons

School of Integrative Biological & Chemical Sciences (Formerly Dept. of Biology)

Our study evaluated heavy metal concentrations in soft tissues of sea hare, Aplysia fasciata, from the Lower Laguna Madre, Texas. Heavy metals in tissues followed Se > As > Pb > Cd. Concentrations ranged As (BDL-28.08), Cd (BDL-5.50), Pb (BDL-12.85) and Se (4.25-93.43 ppm). Median As, Cd, Pb, and Se tissue levels exceeded exposure levels. Significant relationships occurred in metal-metal (As-Cd, As-Pb, Cd-Pb, Cd-Se, and Pb-Se), metal-tissue (significant Se uptake by inhalant and exhalant siphons and As in the hepatopancreas), and metal-metal within tissue (As-Pb in the hepatopancreas and Cd-Pb in the digestive cecum) analyses (p


The Effect Of Hypoxia On The Nervous System Of Aplysia Californica, Victor Escalona, Lynne Annette Fieber, Joseph Serafy Mar 2018

The Effect Of Hypoxia On The Nervous System Of Aplysia Californica, Victor Escalona, Lynne Annette Fieber, Joseph Serafy

2018 Entries

The intertidal zone of California’s Pacific coast is home to the marine snail known as Aplysia californica, an organism that has found use as a model in experiments focused on understanding the basis of learning and memory. Its simple nervous system consisting of easily identifiable neurons, its life span of a year, and a readily-accessed aquacultured source from the National Resource for Aplysia make it an excellent model for ontogenetic, neural, and behavioral studies. Here, however, the focus was on strategies this species uses to survive in an environment rife with risks of hypoxia and desiccation during the tidal …


Descriptive Density Models Of Scyphozoan Jellyfish In The Northern Gulf Of Mexico, Katrina T. Aleksa, Redwood W. Nero, Jerry D. Wiggert, William M. Graham Mar 2018

Descriptive Density Models Of Scyphozoan Jellyfish In The Northern Gulf Of Mexico, Katrina T. Aleksa, Redwood W. Nero, Jerry D. Wiggert, William M. Graham

Faculty Publications

Jellyfish play an important role in the food web of many coastal environments but are generally considered a nuisance to scientific fieldwork and industrial and economic trades. A better understanding of how jellyfish densities and distributions are affected by environmental parameters could elucidate population trends and provide assistance in ecological research and undesirable human interactions. In this study, abundance data for scyphozoan medusae, Chrysaora sp. and Aurelia spp., were extracted from Southeast Area Monitoring and Assessment Program trawling surveys for the northern Gulf of Mexico (nGoM) during the summer and fall months. Both in situ and satellite oceanographic measurements were …


The Influence Of River Discharge On Fishes And Invertebrates Associated With Small Oil And Gas Platforms In Nearshore Louisiana, David Bradley Reeves Mar 2018

The Influence Of River Discharge On Fishes And Invertebrates Associated With Small Oil And Gas Platforms In Nearshore Louisiana, David Bradley Reeves

LSU Doctoral Dissertations

The nearshore region off Louisiana’s coast is one of the most productive areas in the United States. Nutrient-rich discharge from the Mississippi and Atchafalaya rivers forms the base of this productivity, but it also contributes to the annual formation of a large hypoxic zone (DO < 2.0 mg l-1). This region contains >900 oil and gas platforms (platforms) that are de facto artificial reefs and support fish and invertebrate communities. In this dissertation, I examined how select platform-associated fishes and invertebrates responded to river-driven productivity and hypoxia. Settlement plates were used to compare barnacle production at depths of 2 and 7-m along …


Killi-Data News (Winter), Tyrone Genade Mar 2018

Killi-Data News (Winter), Tyrone Genade

Killifish Research Review

Valued readers, it is with a heavy heart that I inform you that this is the last issue of Killi-Data News. The good news is that we will be back as Killifish Research Review. The dissolution of Killi-Data International created a prob- lem: how can the newsletter of a defunct organization live on without that organization? But other additional problems were building in the background. The first issue numbered 15 pages. The previous issue was 28 pages. The number of killifish related papers is increasing while time on our end (the editorial team) is running out. It takes a lot …


Killi-Data News (Fall), Tyrone Genade Mar 2018

Killi-Data News (Fall), Tyrone Genade

Killifish Research Review

Many interesting papers have been published over the last three months. The large volume of papers coupled with the start of the new college semester (and the workload it brings) delayed this issue of Killi-Data News. But better late than never—or so I hope! In this issue Richard van der Laan provides an insightful review of the recent Aphanius papers as to their taxonomic implications and questions. The systematic issues he raises show the importance of the Molecular project: we need to get more samples of the various cyprinodontiforme families to resolve unsettled systematic and taxonomic issues. In the Next …


Killi-Data News (Summer), Tyrone Genade Mar 2018

Killi-Data News (Summer), Tyrone Genade

Killifish Research Review

Over the last three months several interesting and exciting pa- pers have been published. By now most of you have heard the Nothobranchius fish poo news emanating from the Valenzano lab. That paper is reviewed and certainly has repercussions for the health of our captive fish. Polaçik et al have published interesting data with ramifications as to how we breed and incubate annual killifish. The big news in this issue is the paper from the Reznick lab which Jean Huber reviews. The contents of that paper goes to the heart of the question of just what a killifish is. The …


Killi-Data News (Spring), Tyrone Genade Mar 2018

Killi-Data News (Spring), Tyrone Genade

Killifish Research Review

This is the start of Killi-Data News’ second year. In this first issue of the year we have the usual review of research pub- lications as well as input from Martin Reichard on his lab’s Nothobranchius research. Martin is responding to my reviews of his lab’s work in the previous edition. I am serious about making sure the content in this newsletter is reliable but I erred in the previous edition and Martin has written extensively to correct my mistake in the section “Erratum”. This reply is welcomed and owed to readers. I must confess that I don’t know everything …


Killi-Data News (Winter), Tyrone Genade Mar 2018

Killi-Data News (Winter), Tyrone Genade

Killifish Research Review

This is the fourth edition, and concluding issue of the first volume, of Killi-Data News and I am happy that it has been well received by readers. At 25 pages this issue is a bit thin- ner than the last but this is because we agreed to make the cut-off for submissions the 1 st of December so we could get this edition out by the New Year. This is an exciting edition full of new species descrip- tions and analyses that will keep taxonomists busy for years to come. Costa has given us two molecular phylogenies on Melanorivulus as …


Killi-Data News (Spring), Tyrone Genade Mar 2018

Killi-Data News (Spring), Tyrone Genade

Killifish Research Review

This is the start of Killi-Data News’ second year. In this first issue of the year we have the usual review of research pub- lications as well as input from Martin Reichard on his lab’s Nothobranchius research. Martin is responding to my reviews of his lab’s work in the previous edition. I am serious about making sure the content in this newsletter is reliable but I erred in the previous edition and Martin has written extensively to correct my mistake in the section “Erratum”. This reply is welcomed and owed to readers. I must confess that I don’t know everything …


Alluvial Substrate Mapping By Automated Texture Segmentation Of Recreational-Grade Side Scan Sonar Imagery, Daniel Hamill, Daniel Buscombe, Joseph Michael Wheaton Mar 2018

Alluvial Substrate Mapping By Automated Texture Segmentation Of Recreational-Grade Side Scan Sonar Imagery, Daniel Hamill, Daniel Buscombe, Joseph Michael Wheaton

Watershed Sciences Faculty Publications

Side scan sonar in low-cost ‘fishfinder’ systems has become popular in aquatic ecology and sedimentology for imaging submerged riverbed sediment at coverages and resolutions sufficient to relate bed texture to grain-size. Traditional methods to map bed texture (i.e. physical samples) are relatively high-cost and low spatial coverage compared to sonar, which can continuously image several kilometers of channel in a few hours. Towards a goal of automating the classification of bed habitat features, we investigate relationships between substrates and statistical descriptors of bed textures in side scan sonar echograms of alluvial deposits. We develop a method for automated segmentation of …


Variable Utilization Of Shelf Break-Associated Habitats By Chick-Brooding Rhinoceros Auklets In The California Current System, Bradley Wilkinson, Jaime Jahncke, Pete Warzybok, Russell Bradley, Scott A. Shaffer Mar 2018

Variable Utilization Of Shelf Break-Associated Habitats By Chick-Brooding Rhinoceros Auklets In The California Current System, Bradley Wilkinson, Jaime Jahncke, Pete Warzybok, Russell Bradley, Scott A. Shaffer

Faculty Publications, Biological Sciences

Identifying frequently complex and dynamic spatial distributions of marine predators via the modeling of at-sea observations can be inherently challenging, especially when attempting to predict habitats of specific populations. Remotely-sensed tracking devices provide a viable alternative way to gather this information. We collected fine-scale spatiotemporal movement data for a small seabird, the rhinoceros auklet Cerorhinca monocerata, in the California Current System. Chick-brooding adults nesting on Southeast Farallon Island were outfitted with GPS loggers during the 2015 and 2016 breeding seasons (n = 15). Along with basic movement parameters, kernel density and residence time analyses were conducted to characterize at-sea distribution …


Dataset For: Tracking An Oil Tanker Collision And Spilled Oils In The East China Sea Using Multisensor Day And Night Satellite Imagery, Shaojie Sun Mar 2018

Dataset For: Tracking An Oil Tanker Collision And Spilled Oils In The East China Sea Using Multisensor Day And Night Satellite Imagery, Shaojie Sun

C-IMAGE data

In this dataset, we used a multi-sensor day and night satellite approach to track the SANCHI oil tanker collision and oil spill event in January 2018 in the East China Sea. The drifted on fire oil tanker was tracked by Visible Infrared Imaging Radiometer Suite (VIIRS) Nightfire product and Day/Night Band (DNB) imagery. Such pathway and locations were also reproduced with a numerical model, with RMS error of < 15 km. MultiSpectral Instrument (MSI) optical imagery during daytime shows smokes on 13 January 2018, further confirms the drifted tanker location. MSI imagery after 4 days of the tanker’s sinking (18 January 2018) reveals oil on the ocean surface to the east and northeast of the tanker sinking location. This combination of all available remote sensing and modeling techniques can provide effective means to monitor marine accidents and oil spills to assist event response.


Dispersant Enhances Hydrocarbon Degradation And Alters The Structure Of Metabolically Active Microbial Communities In Shallow Seawater From The Northeastern Gulf Of Mexico, Lena Chu, Elisa Mercando, Roger C. Prince, Isabel C. Romero, David Hollander Mar 2018

Dispersant Enhances Hydrocarbon Degradation And Alters The Structure Of Metabolically Active Microbial Communities In Shallow Seawater From The Northeastern Gulf Of Mexico, Lena Chu, Elisa Mercando, Roger C. Prince, Isabel C. Romero, David Hollander

C-IMAGE data

The seawater samples were collected from Pensacola Beach, FL in June and August, 2016. The seawater was incubated with low concentration of oil (2ppm) with or without dispersant. Oil analysis and sequencing data were generated.


Legacy Contaminants In The Northern Gulf Of Mexico Shelf, Jessica N. Landry Mar 2018

Legacy Contaminants In The Northern Gulf Of Mexico Shelf, Jessica N. Landry

LSU Master's Theses

The Mississippi River watershed is the third largest in the world and drains from 31 states in the United States. Due to its route through the U.S., it passes through hundreds of EPA labeled Superfund sites as well as agricultural and suburban watersheds. These sites are known to have historical chemical contamination, and as a result chemicals can be transported by runoff down the Mississippi River into the Gulf of Mexico where their ultimate fate is unknown. Organochlorine chemicals are known to be persistent and are found in agricultural land as well as US EPA Superfund sites, especially DDT, PCBs, …


P-46 A Periodic Matrix Model Of Seabird Behavior And Population Dynamics, Mykhaylo M. Malakhov, Benjamin Macdonald, Shandelle M. Henson, J. M. Cushing Mar 2018

P-46 A Periodic Matrix Model Of Seabird Behavior And Population Dynamics, Mykhaylo M. Malakhov, Benjamin Macdonald, Shandelle M. Henson, J. M. Cushing

Honors Scholars & Undergraduate Research Poster Symposium Programs

Rising sea surface temperatures (SSTs) in the Pacific Northwest lead to food resource reductions for surface-feeding seabirds, and have been correlated with several marked behavioral changes. Namely, higher SSTs are associated with increased egg cannibalism and egg-laying synchrony in the colony. We study the long-term effects of climate change on population dynamics and survival by considering a simplified, cross-season model that incorporates both of these behaviors in addition to density-dependent and environmental effects. We show that cannibalism can lead to backward bifurcations and strong Allee effects, allowing the population to survive at lower resource levels than would be possible otherwise.


Microbiome And Bacterioplankton Rrna Gene Sequence Data Collected From Gulf Of Mexico Seawater Samples, Cruises Dp03 And Dp04 From April - August 2016, Cole Easson, Lindsey Freed Mar 2018

Microbiome And Bacterioplankton Rrna Gene Sequence Data Collected From Gulf Of Mexico Seawater Samples, Cruises Dp03 And Dp04 From April - August 2016, Cole Easson, Lindsey Freed

DEEPEND Datasets

Seawater was collected and filtered for microbiome and bacterioplankton sequencing and analyses at various depths during planned DEEPEND cruise expeditions to the GOM in 2016. Filters were stored and then processed for total environmental genomic DNA according to standard methods (see earthmicrobiome.org). 16S rRNA amplicon libraries covering the V4 hypervariable regions were generated with universal PCR primers and then sequenced on an Illumina MiSeq DNA sequencing platform. Raw paired-end sequences were joined and quality filtered in the bioinformatics program, QIIME. Vertical baseline characterizations will track alpha and beta diversity at different depths ranging from 0 – 1500 m, assess seasonal …


Evaluation Of Diet Matrix Uncertainty For The Atlantis Model, Cameron Ainsworth Mar 2018

Evaluation Of Diet Matrix Uncertainty For The Atlantis Model, Cameron Ainsworth

C-IMAGE data

We conducted 1000 Atlantis simulations, using permutated diet matrices created by drawing from a beta distribution that represented uncertainty in predator diet. We also employed a statistical emulator which simulates the production of many more Atlantis runs than could be achieved through numerical simulation. This dataset includes 3 products: statistical emulator output, diet matrices, and Atlantis simulations. These are each contained in their own zip file.


Comparison Of A Simplified Cupric Oxide Oxidation Hplc Method With The Traditional Gc-Ms Method For Characterization Of Lignin Phenolics In Environmental Samples (Vol 13, Pg 1, 2015), Luni Sun, Robert G. M. Spencer, Peter J. Hernes, Rachael Y. Dyda, Kenneth Mopper Mar 2018

Comparison Of A Simplified Cupric Oxide Oxidation Hplc Method With The Traditional Gc-Ms Method For Characterization Of Lignin Phenolics In Environmental Samples (Vol 13, Pg 1, 2015), Luni Sun, Robert G. M. Spencer, Peter J. Hernes, Rachael Y. Dyda, Kenneth Mopper

Chemistry & Biochemistry Faculty Publications

In our article entitled “Comparison of a simplified cupric oxide oxidation HPLC method with the traditional GC-MS method for characterization of lignin phenolics in environmental samples” (Limnol. Oceanogr.: Methods 13, 2015, 1–52), doi: 10.1002/lom3.10001, we would like to correct the errors in Fig. 2 and Table 2 as mentioned below. The label to Fig. 2(a) needs to be transposed as indicated in the corrected Fig. 2 image below.


Evaluating Recruitment Seasonality Of Red Abalone (Haliotis Rufescens) To Inform Fisheries Management And Conservation Policy, Leslie Christine Hart Mar 2018

Evaluating Recruitment Seasonality Of Red Abalone (Haliotis Rufescens) To Inform Fisheries Management And Conservation Policy, Leslie Christine Hart

Master's Theses

Recruitment, the addition of new individuals to a population, must be understood to make predictions about population growth of marine invertebrates. Red abalone (Haliotis rufescens) represent a former important commercial fishery in California, and until recently, supported a major recreational fishery. However, there have been statewide declines since the 1960s due to overfishing, disease, and climatic factors. Thus, understanding population dynamics to inform management and population restoration is critical. Recruitment dynamics of red abalone are poorly understood, with no prior knowledge of seasonal trends. To address this knowledge gap, I assessed monthly (July 2016-June 2017) and annual (2012-2016) …