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Dr. Laska Presents at WHC Conference!

Mark S. Laska, Ph.D., Founder and President of Great Ecology, along with Gregory R. Biddinger, Ph.D., Managing Director and Principal Scientist at Natural Land Management, LLC presented at the Wildlife Habitat Council’s Conservation Conference 2018 earlier today. The name of their session was The Future is Green: Conservation Strategies to Achieve Success.

Dr. Biddinger discussed strategies to incorporate conservation practices throughout the life cycle of a corporate project, describing the triple bottom line benefits of this approach. Dr. Laska followed up with natural land management case studies, using examples from Great Ecology’s 17-year history as ecological consultants. His portion of the session introduced strategies to optimize the value of corporate land assets, and described Great Ecology’s process to evaluate a corporate site based on its  ecological potential, the regional ecosystem marketplace, and the regulatory framework.

If you’re at the Wildlife Habitat Council’s Conservation Conference this year, we hope you’ll stop by our table and say hello! You can also learn about Dr. Laska’s work with Tellurium Partners and Ecology Landwatch, two of Great Ecology’s sister companies.

Mark Laska, Ph.D. (left) and Dave Yozzo, Ph.D

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Colorado Association of Stormwater and Floodplain Managers Award

Great Ecology is thrilled to announce that we have won an Environmental Excellence award from the Colorado Association of Stormwater and Floodplain Managers (CASFM) for our work on the Emergency Watershed Protection (EWP) program. Vice President of Technical Services, Randy Mandel, received this award on behalf of the company at the 2018 Annual CASFM Conference in Snowmass, CO.

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Great Ecology a Finalist for Three AEP Awards

The San Diego office was a finalist for three Association of Environmental Professionals (AEP) San Diego Chaper awards:
  1. Outstanding Technical Report – Pond 20 Delineation Report
  2. Outstanding Innovation in Green Planning and Design – Pond 20 Prospectus
  3. Outstanding Innovation in Green Planning and Design – Constructed Treatment Wetland System at the Del Mar Fairgrounds

We are so proud of the work produced through these projects and honored to have been a finalist. Learn more about the AEP.

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Southern Resident Killer Whales (SRKW) are Key to Salish Sea Ecosystem Health

By Liz Clift

Historically, conservation groups were responsible for saving the whales. The earliest of these groups was the American Cetacean Society, which was founded in 1967. More groups focused on whale conservation, education, and research formed soon after and include the Center for Whale Research which has been performing orca surveys since 1976[1]. The Center for Whale Research has  specifically focused on the study and conservation of the Southern Resident Killer Whales (SRKW; Orcinus orca), which make the Salish Sea their home.

Image by NOAA

The SRKW made news earlier this year, when a grieving mother orca (J35 aka Tahlequah, b. 1998) carried her calf—which died half an hour after it was born—for 17 days. This mourning period is unprecedented among orcas (although a mourning period, in general, is fairly common). At the same time a young orca (J50 aka Scarlet, b. 2014 to a different mother in the J-pod) was, starving to death

The SRKW population totals only 74—a number that puts their population at risk. The death of J35/Tahlequah’s baby brought this into stark relief because no babies have been born—and survived—in any of the three pods that make up the SRKW in the three years. Stress factors attributed to the SRKW plight include: toxic pollutants, vessel noise, and lack of salmon (their primary food).

Drastic measures were taken by multiple agencies, scientists, and researchers from the US, Canada, and the Lummi Nation, who provided chinook (Oncorhynchus tshawytscha) for J50/Scarlet to eat. The team administered an antibiotic injection to J50/Scarlet and as of late August, she’d been spotted socializing with other members of her pod. As of this publication J50 is presumed dead.

SRKW are unique among orcas. They spend their life in the Salish Sea and eat primarily chinook, which has earned them the nickname “fish-eating orcas.” These whales were also heavily impacted by the marine mammal trade for marine park exhibition. Between 1965 and 1975, 13 SRKW died and 45 were delivered to marine parks around the world[2]. In addition to the hardships faced by whales in marine parks, whales were historically killed as part of the commercial whaling industry. Commercial whaling ended in 1986.

While this may (or may not) tug at your heart-strings, protecting whales means increasing the resiliency of marine ecosystems. “Whales,” as Asha de Vos states in her TED Talk Why You Should Care about Whale Poop, “are ecosystem engineers. They help maintain the stability and health of the oceans, and even provide services to human society.”

Whales help cycle nutrients from deeper in the ocean—which stimulates the growth of phytoplankton (which forms the base of all marine ecosystems), help move carbon from the surface of the water into the deeper ocean and provide a meal for up to 400 different species when they die. They’re also an apex predator, which helps keep their prey populations in check. Whales feed on a variety food ranging from plankton and krill to sharks—and it’s through this feeding (and their fecal plumes) that whales are able to sink carbon.

But even with the moratorium on commercial whale fishing, whale populations continue to remain well below their historic levels. To help our ocean ecosystems, we must continue to make steps toward helping whales. The specific steps needed to protect whales varies from species to species—and location to location—so from here, I’ll return my focus to the SRKW. The three major stressors impacting the SRKW are degraded habitats (including those of their prey species) and contaminants within those habitats, prey population, and disturbance from vessels.

Habitat Restoration & Contaminants

SRKW depend on chinook populations—but damming rivers and commercial fishing both impact chinook populations. The average adult SRKW needs to eat 18 – 25 adult chinook a day. Chinook can weigh up to 100 pounds, but average about 30 pounds as adults. And, in recent years, very large chinook are becoming rarer.

Dam removal projects, such as the Elwha dam removal, can help restore connectivity between the ocean and salmon spawning grounds—and improve overall forest and watershed health (which are linked to improved ocean health). The Columbia River and the Snake River have been identified key rivers to restore.

The waters of the Salish Sea—as well as adjacent upland areas—should also be the focus of a restoration effort with the goal of reducing the number of contaminants entering the food chain. Since the SRKW are apex predators, they consume contaminants consumed in all the lower trophic levels, through bioaccumulation. This may lead to lower rates of fertility, increased calf mortality, and other problems with the whales. In addition, these contaminants can impact populations of fish (known as forage fish) that chinook rely on, thus also reducing prey populations for the SRKW.

In addition, continuing efforts to restore seagrass in the Salish Sea is critical to improving salmon habitat. Seagrass provides habitat for juvenile fish of many species, including salmon and increases in seagrass meadows could lead to higher overall fish populations as well as Chinook populations.

Prey Populations

In addition to habitat restoration activities that can help restore overall salmon populations, as well as populations of forage fish, daily bag limits on chinook can help ensure more fish make it to their spawning grounds. Recently, some Washington restaurants made the decision to stop serving chinook for the foreseeable future, in order to support the SRKW population. Although not many restaurants are currently choosing this route, if enough do elect to stop serving chinook, it could begin to force changes on commercial fisherman.

It isn’t just human salmon catches that have raised concerns. Recently, discussions have begun anew on reducing the number of other ocean-dwelling predators that eat salmon, including harbor seals and sea lions. The thought behind this is that if these competing predators are killed, more salmon would be available for the whales. But predator-control efforts often don’t result as intended and are focused on a top-down management view (i.e. – fewer predators equals more prey instead of more prey equaling more food for predators—as thus allowing target predator populations to expand [in the case of the SRKW]).

Noise Pollution and Vessel Disturbance

Noise within the Salish Sea has been cited as another problem impacting the SRKW. The Salish Sea is a popular shipping channel, contains numerous port cities, and is traversed by ferries taking people from the mainland to the populated islands off the Washington coast, as well as whale watching and fishing boats. In 2008, regulations were put in place to require boaters to steer clear of orcas, which can help reduce noise and general disturbance from these boats. In addition, a voluntary “no-go” zone has been established at one of the SRKW forage and socialization sites.

All of these are helpful measures; however, noise from these boats can impair the orcas ability to hunt—as well as limit their ability to communicate with the rest of their pod to stay safe or find mates. In 2017, some ships participated in a voluntary slow down near one of the SRKW popular feeding grounds west of San Juan Island. The hope was that slower ships would decrease underwater noise—and hopefully have a positive impact on the whales. The preliminary analysis indicated that this experiment was a success, with underwater noise levels falling by nearly half.

In short, there’s no easy answer. But Washington state governor, Jay Inslee signed Executive Order 18-02 in March 2018 designating state agencies establish a Task Force and take other immediate action to benefit the SRKW, with a goal of developing longer term recommendations for SRKW recovery and sustainability. A full draft of the recommendations was released earlier this month and a final set of recommendations is due by November 2018. A second report, which will outline progress made, lessons learned, and unmet needs will be developed by October 1, 2019.

Steps recommended by the Task Force, along with steps already being taken by those who have dedicated their lives (or free time) to ecological restoration, improved fisheries, whale conservation, and marine science, among other fields will hopefully lead to healthier and more vibrant whale populations—as well as healthier marine ecosystems, overall.

 

[1] In this blog, I’ll use whale to refer to both baleen and toothed whales, including orcas. Orcas are the largest member of the dolphin family.

[2] Free Willy provides a fictionalized glance (Keiko was not an SRKW) into what happened to whales who were captured for marine parks (Freeing Willy provides a 12 minute long look into what happened to Keiko, the whale who played Willy, after the movie was filmed)—and the movie Blackfish highlights the living conditions of whales in these marine parks.

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Vice President of Technical Services to Present at Army Corps Natural and Nature-Based Features Symposium

Vice President of Technical Services, Randy Mandel, has been invited to present the Bioengineering Manual he coauthored for the Emergency Watershed Protection (EWP) Program as well as Riparian Restoration Matrix, also developed for EWP, at the September Army Corps International Natural and Nature-Based Features Symposium at UC Santa Cruz. His presentation will occur on September 20.

US Army Corps of Engineers (USACE) initiated a collaborative project to develop, publish, and promote guidelines on the development of Natural and Nature-Based Features (NNBF). NNBF support engineering functions in the context of the overall sustainability and resilience of coasts, bays, and estuaries. The workshop at which Mr. Mandel will present is part of a series of workshops that relate to USACE’s multi-agency effort to develop guidance describing how to implement, monitor, and evaluate NNBF projects.

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Climate Change and Coastal Fish Assemblages

By David J. Yozzo, PhD

Climate change is impacting the health and biological integrity of marine and estuarine waters throughout the United States, and globally.  Rising average air and water temperatures, more frequent and extreme weather events, and steadily rising sea levels are changing baseline environmental conditions, and may alter the distributions and life history patterns of marine/estuarine organisms, including fish, invertebrates, sea birds, sea turtles and marine mammals. The magnitude of these ecological changes is expected to increase in the future, with important implications for strategic, effective management of marine and coastal resources, including sustainable fisheries and swimmable waters. One especially widespread (global) indicator of the effects of climate change (specifically increased sea surface temperatures) on marine resources is the increasing magnitude of change in the distribution of marine and estuarine fish species. (Roessig et al. 2004, Nye et al. 2009, Koenigstein et al. 2016). For example:

  • Along the southeastern Brazilian coast, up to 50 fish species have altered their distribution patterns in recent decades, with subtropical species contracting their range in the north, and tropical species expanding their ranges to the south. (Araujo et al. 2018);
  • A general shift northward in fish migration patterns has been documented in European estuaries, from Portugal to Scotland, from the mid-1970s to present (Nicolas et al. 2011);
  • Within the Tagus Estuary, along the Portuguese Atlantic coast, an increase in sea surface temperatures from 1978 to 2006 was correlated with greater abundance of sub-topical species and a decline in temperate fish species (Vinagre et al. 2009); and
  • Tropical fish species are increasing in abundance within temperate estuaries along the coast of South Africa, and future projected changes in the intensity and periodicity of precipitation and river flow is anticipated to strongly affect coastal fish populations in this region (James et al. 2013).

Large School of Fish (from Wikimedia Commons)

However, discerning climate-driven changes in marine fish distributions is challenging – the signal from climatic effects may be confounded by other factors such as forage availability, changes in inshore habitat structure and commercial overharvesting. In addition, marine fish populations can undergo cyclic patterns of abundance associated with multi-decadal natural changes in oceanic currents, such as the North Atlantic Oscillation (NAO), the Pacific Decadal Oscillation (PDO), and the El Nino-Southern Oscillation (ENSO) (Crozier and Hutchings 2014). Even under nearly constant environmental conditions, fish distributions are not static. Fish populations occupy optimal habitats under low abundances, but also disperse into less optimal habitats at high abundances (Sinclair 1988, MacCall 1990). This means that species that are only rarely or periodically seen in temperate estuaries may be driven there in response to higher densities/competition for resources in more tropical waters and not necessarily because of favorable temperatures.

Many aquatic and marine species are sensitive to temperatures just a few degrees higher than those they are generally adapted to in nature (Kennedy et al. 2002). Oceanic warming simultaneously reduces the total amount of dissolved oxygen that can be held in water and increases demand for oxygen in cold blooded aquatic animals. Even modest increases in ocean temperatures may affect growth/metabolism, determine behavior and alter distribution patterns. The Intergovernmental Panel on Climate Change (IPCC 2014) has documented an average global temperature increase among land and ocean surfaces of 0.85 °C (1.53 °F) between 1880 and 2012. The upper ocean (0 to 75 m) has, on average, warmed by 0.11 °C (0.20 °F) every decade since the early 1970s.

Increased surface water temperature, along with changing patterns of precipitation and riverine hydrology may alter the timing and magnitude of phytoplankton production in estuaries, favoring production by species known to form harmful algal blooms (HABs) (Pyke et al. 2008)—such as the notorious “red tides” currently occupying a large expanse of the southwestern Florida coastline, resulting in massive fish kills, and respiratory distress to humans on beaches. Toxic effects of HABs vary; some forms may exhibit toxicity to fish and aquatic biota even at low cell concentrations, while others may be essentially non-toxic but present a nuisance through high biomass production – they interfere with grazing by zooplankton and alter patterns of nutrient supply and elemental recycling (Gobler et al. 2017).

Along the U.S. Atlantic coast, warm-temperate fish species fish assemblages may benefit from climate changes that are impacting cooler-water species, by expansion of their range to more northern estuaries. One of the most compelling examples of this phenomenon is Narragansett Bay, Rhode Island. Nye et al. (2009) documented changes in the abundance and latitudinal distribution for several bottom-dwelling species, which were historically abundant and characteristic of the Narragansett Bay winter fish community, including red hake (Urophycis chuss), and silver hake (Merluccius bilinearis). Simultaneously, the abundance of warm water species that migrate into the Bay during summer such as butterfish (Peprilus triacanthus) and scup (Stenotomus chrysops) increased.  These changes coincided with a 90% decline in winter flounder (Pseudopleuronectes americanus) abundance in the Bay (Oviatt 2004, Jefferies et al. 2011). Winter flounder spawn in estuaries at temperatures ranging from 1 to 10 °C, with optimal spawning conditions at 2 to 5 °C. The evolution of cold water spawning in winter flounder is a mechanism for avoiding predation on newly emerged/metamorphosing larvae, principally by sand shrimp (Crangon septemspinosa). Winter flounder eggs hatch when sand shrimp have historically been absent or dormant in the Bay. However, as winter water temperatures increased, sand shrimp remained active and consumed flounder larvae (Taylor and Collie 2003). Warmer waters are also associated with greater egg mortality rates, reduced larval growth rates, and diminished larval condition (Keller and Klein-McPhee 2000). Winter flounder have historically exhibited long-term cyclical abundance patterns; however, abundance peaks have diminished in recent decades.

Further south, faunal shifts have also been documented for the Hudson-Raritan Estuary, including the extirpation of rainbow smelt (Osmerus mordax). Smelt abundance in Hudson River tributaries began to decline during the 1970s, and the last recorded specimen from the Hudson drainage was collected in 1998 (Waldman 2006). Another cold-water species, Atlantic tomcod (Microgadus tomcod), has also diminished in the lower Hudson River; a contributing factor may be the species’ naturally short lifespan at this extreme southern portion of their distributional range (most Hudson River tomcod only live one year compared to 3 to 4 years in the northern reaches of their range). It is expected that the Hudson River population will further diminish, and perhaps become extirpated entirely in the coming decades (Waldman 2014).

In contrast, gizzard shad (Dorosoma cepedianum), historically rare north of Sandy Hook, New Jersey, colonized the Hudson River during the 1970s and has become established as far north as the Merrimack River, Massachusetts.  Channel catfish (Ictalurus punctatus), another species most often associated with aquatic habitats (including large coastal river basins) to the south of the Hudson drainage, became increasingly abundant in the tidal Hudson river during the mid- to late-1990s (Daniels et al. 2005). Another recent faunal shift in the Hudson-Raritan Estuary is the increasing presence of species in the drum family (Sciaenidae), including Atlantic croaker (Micropogonias undulatus), spotted seatrout (Cynoscion nebulosus), and red drum (Sciaenops ocellatus). These species are most often associated with estuaries to the south such as Delaware Bay and Chesapeake Bay, and Albemarle-Pamlico Sound (Waldman 2014).

The coastal management community is paying close attention to changes in the distribution and abundance of marine and estuarine biota, as well as other climate-related impacts on coastal habitats, water quality, and recreation. Future climate projections and vulnerability may require re-assessing present-day federal, state, and local water quality (e.g., temperature and dissolved oxygen) standards for estuaries and coastal waters. For example, meeting existing thermal standards may represent an increasing challenge for electrical power generating facilities and other industries which discharge heated effluent into estuaries and coastal bays. Maintaining compliance will likely require the development of newer, more efficient technology and operational procedures, especially if regulators were to adopt more stringent (protective) criteria to protect coastal resources.

Power Plant (photo by Dr. Yozzo)

The U.S. Environmental Protection Agency’s (EPA) National Estuary Program (NEP) has identified projected Increases in ocean surface temperature as a key vulnerability of its program to protect and restore the water quality and ecological integrity of estuaries of national significance. EPA’s Climate Ready Estuaries Program (https://www.epa.gov/cre) provides resources to support individual NEP component programs, and the coastal management community, in identifying climate vulnerabilities, developing adaptation measures/strategies and educating and engaging local stakeholders affected by climate change impacts in coastal areas throughout the U.S.

 

 

 

Literature Cited

Araujo, F.G., T.P. Teixeira, A.P.P. Guedes, M. C. C. de Azevedo and A.L.M. Pessanha. 2018. Shifts in the abundance and distribution of shallow water fish fauna on the southeastern Brazilian coast: a response to climate change. Hydrobiologia 814: 205-218.

Crozier, L.G. and J.A. Hutchings. 2014. Plastic and evolutionary responses to climate change in fish. Evolutionary Applications 7:68-87.

Daniels, R.A., K.E. Limburg, R.E. Schmidt, D.L. Strayer and R.C. Chambers. 2005. Changes in Fish Assemblages in the Tidal Hudson River, New York. American Fisheries Society Symposium 45:471–503.

Gobler, C. J., O.M. Doherty, T.K. Hattenrath-Lehmann, A.W. Griffith, Y. Kang and R.W. Litaker. 2017. Ocean warming since 1982 has expanded the niche of toxic algal blooms in the North Atlantic and North Pacific oceans. Proceedings of the National Academy of Sciences, 114: 4975-4980.

IPCC 2014. Climate Change 2014: Impacts, Adaptation, and Vulnerability. Part A: Global and Sectoral Aspects. Contribution of Working Group II to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, 1132 pp.

James, N.C., L. van Niekerk, A.K. Whitfield, W.M. Potts, A. Gotz and A.W. Paterson. 2013. Effects of climate change on South African estuaries and associated fish species. Climate Research 57: 233–248.

Jeffries, H.P., A. Keller and S.Hale. 2011. Predicting Winter Flounder (Pseudopleuronectes americanus) Catches by Time Series Analysis. Canadian Journal of Fisheries and Aquatic Sciences 46:650-659.

Keller, A.A. and G. Klein-MacPhee. 2000. Impact of elevated temperature on the growth, survival, and trophic dynamics of winter flounder larvae: a mesocosm study. Canadian Journal of Fisheries and Aquatic Sciences 57: 2382-2392.

Koenigstein, S., F.C. Mark, S. Gofsling-Reisemann, H. Reuter and H. Poertner. 2016. Modelling climate change impacts on marine fish populations: process-based integration of ocean warming, acidification and other environmental drivers. Fish and Fisheries 17: 972–1004.

MacCall, A.D. 1990. Dynamic Geography of Marine Fish Populations. Seattle: University of Washington Press.

Nicolas, D., A. Chaalali, J. Drouineau, J. Lobry, A. Uriarte, A. Borja and P. Boet. 2011. Impact of global warming on European tidal estuaries: some evidence of northward migration of estuarine fish species. Regional Environmental Change Journal 11:639–649.

Nye, J.A., J.S. Link, J.A. Hare and W.J. Overholtz. 2009. Changing spatial distribution of fish stocks in relation to climate and population size on the Northeast United States continental shelf. Marine Ecology Progress Series 393: 111-129.

Oviatt, C.A. 2004. The changing ecology of temperate coastal waters during a warming trend. Estuaries 27:895–904.

Pyke, C. R., R. G. Najjar, M. B. Adams, D. Breitburg, M. Kemp, C. Hershner, R. Howarth, M. Mulholland, M. Paolisso, D. Secor, K. Sellner, D. Wardrop, and R. Wood. 2008. Climate Change and the Chesapeake Bay: State-of-the-Science Review and Recommendations. A Report from the Chesapeake Bay Program Science and Technical Advisory Committee (STAC), Annapolis, MD. 59 pp.

Roessig, J.M., C. M. Woodley, J.J. Cech, Jr. and L.J. Hansen. 2004. Effects of Global Climate Change on Marine and Estuarine Fishes and Fisheries. Reviews in Fish Biology and Fisheries 14: 251–275.

Sinclair, M. 1988. Marine Populations: an Essay on Population Regulation and Speciation. University of Washington Press, Seattle, WA.

Taylor D.L. and J.S. Collie. 2003. Effect of temperature on the functional response and foraging behavior of the sand shrimp Crangon septemspinosa preying on juvenile winter flounder Pseudopleuronectes americanus. Marine Ecology Progress Series 263:217–234.

Vinagre, C., F.D. Santos, H.N. Cabral and M.J. Costa. 2009. Impact of climate and hydrology on juvenile fish recruitment towards estuarine nursery grounds in the context of climate change. Estuarine, Coastal and Shelf Science 85:479-486.

Waldman, J.R. 2006. The diadromous fish fauna of the Hudson River: life histories, conservation concerns, and research avenues. Chapter 13, pp. 171-188 in: J.S. Levinton and J.R. Waldman, (Eds.) the Hudson River Estuary. Cambridge University Press, New York.

Waldman, J. 2014. Climate change: a cool-eyed look at fishing in our warmer waters. The Fisherman, March 2014: 4-7.

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Great Ecology’s Blog Named a Top 40 Blog of 2018

Great Ecology is proud to announce that our blog was selected as one of the top 40 ecology blogs of 2018 by Feedspot (we’re number 18, and in good company with folks like The Prairie Ecologist, Sonoma Ecology Center, and The Applied Ecologist’s Blog, just to name a few!). We strive to make complex research accessible, keep on the forefront of the latest trends in ecological science, and highlight innovations, designs, policies, and ideas that are important to our field.

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Upwells of Life and Oil

By Amber Jackson

If someone asks you to describe spring or summer, you might talk about new life, with pops of color flowering in open spaces and on trees, and a seemingly endless soundtrack of bird songs. The land, however, is not the only place where life is replenished in the spring and summer months. The ocean, with its seemingly unchanging surface, is also privy to the productivity of these seasons, especially off the coast of California, where the winds and deep underwater canyons provide the perfect conditions for upwelling. These coastal upwelling regions are relatively rare, accounting for less than 1% of the ocean surface, however, they are incredibly productive regions and contribute roughly 50% of the world’s fishing landings.

Life Beneath a Platform (in Gulf of Mexico)

But before we dive below the surface, imagine the feel of a breeze across your skin. Winds create a powerful and direct effect on oceans and are an important force in creating currents. From the global circulation of entire ocean systems to small eddies nearshore, winds move water and its resident animals and plants in complex and interesting patterns.

In the spring and summer months, warm winds from the north blow parallel to the coastline towards southern California. When this occurs, an intriguing and biologically important event takes places. Affected by the rotation of the earth, these winds move water at right angles to the direction the wind is blowing, a phenomenon known as the Coriolis effect. Along the California coastline, winds that blow from the north drive surface waters offshore. As surface waters are pushed offshore, water is drawn from below to replace them. The upward movement of this deep, colder water is called upwelling.

Upwelling brings cold, nutrient-rich waters to the surface, which encourages the growth of large blooms of phytoplankton. The phytoplankton blooms form the ultimate energy base for large animal populations higher in the food chain, such as tuna, seabass, and even large marine mammals, like whales. Although an impressive biological event, this is not the only major consequence of upwelling because upwelling also affects animal movement. Upwelling moves nearshore surface water offshore and takes with it whatever is floating in the water column, such as larval young produced by most marine fish and invertebrates. These larvae are tiny, ranging from microscopic to the size of a potato chip, and they spend the first few weeks or months of life adrift in the water column. Upwelling that moves surface water offshore can potentially move drifting larvae long distances away from their natural habitat, to shelters such as a nearby oil and gas platform.

This past spring, I experienced the plethora of larval young swarming around California’s offshore oil and gas platforms. Although my dive partners and I focused our cameras on the anemone-covered beams, and the sea lion curiously swimming by, when we revisited our footage after the dive we found that many of the photos had been “photobombed” by a larva that landed on the lens! Even, when we exited the water, we noticed that our wetsuits were crawling with life. It was quite a shock to see thousands of tiny white shrimp and other larvae contrasted against our black wetsuits.

Larva Photobombing!

Offshore oil and gas platforms don’t cause upwelling but act as a landing site for those larvae displaced by upwelling. In fact, the vertical platform structures may cause a slight shift in current direction that mixes the surrounding ocean nutrients. This mixing, although small, provides the distribution of an important foundational food source for other, larger fish that call offshore oil and gas platforms home—which contributes to these offshore platforms being an important fisheries resource that can be disrupted if the platform is completely removed after it is decommissioned.

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Plants with a Purpose

by Jared Huennekens

Horticulture Encounter, ‘Plants with a Purpose’, Miramar Landscape Center and Growing Grounds

When I stepped into the Village Nurseries’ Horticulture Encounter, ‘Plants with a Purpose,’ at the Miramar Landscape Center and Growing Grounds, my senses felt bombarded with incoming stimulus. Like an owl who’s spotted a nest of mice, my head flew in circles absorbing an array of aromatic and beautiful plants.

The Encounter, curated by Suzie Wiest, a one stop shop for all your horticulture questions, boasts a robust collection of plants highlighting relevant landscape topics within San Diego county: fire resistance, edible flowers, fillers, deer and rabbit tolerance, pollination, pairings, and plants that promote well-being (health, productivity, and happiness). The San Diego office of Great Ecology (and the office dogs!) had the pleasure to learn and engage in a productive dialogue concerning these plants and the plants we use in our own projects and homes. Wiest has over 20 years of experience of experience in wholesale industry and her ability to navigate landscaping issues, pollination, native versus non-native species, and water resiliency was impressive to say the least.

For Great Ecology, the fire resistance collection titled ‘Blaze Battlers’ poses particular relevance to upcoming projects such as trail routing at Camp Ramah because of the recent wildfires in Southern California. Wiest developed a phenomenal collection to address our wildfire outbreaks and increase the ecological health of impacted spaces.

This collection was of particular interest to us, not only for large landscaping projects conducted at Great Ecology, but the yards and canyons in our neighborhoods. For me, this collection could mean a difference in the way my friends and family experience wildfires. At  four years old, I was forced to evacuate my home because of wildfires in our area. Over the next 15 years, three major wildfires have occurred in my area burning down a few of my friends homes and favorite natural environments.

Horticulture Encounter

Many plants within the collection deserve mention on the merit of their beauty, aroma, and potential value as a sustainable solution (not specific to California). An exceptional succulent, the hybrid Aloe ‘Always Red,’ blooms masses of stark, blood-red blooms ten months of the year. Light frost, rain, and drought pose no threat for this South African native known as a magnet for droves of hummingbirds. The needle-like red and white bloom on the evergreen shrub Grevillea hybrid ‘Kings Celebration’ stood apart along with the Verbena lilacina ‘De La Mina,’ a fragrant purple bloom that attracts hosts of butterflies and bees. My personal favorite, the ‘Meerlo’ Lavender, displays an unassuming, untraditional cream, pale green color, but its aroma permeates my mind to this day, a week later.

Unfortunately, describing the beauty and smell of these plants is akin to a food critic describing a 12 course meal at Noma or google searching the Northern Lights. Nothing compares to the real thing.

Laurel with Her Pup, Scooter, at the Horticulture Encounter

The Great Ecology team enjoyed our visit and would like to thank Suzie Wiest along with the Village Nursery for allowing us to escape the routine of the  work day, spend time outside learning about plants that influence our ecological works, and letting us take home a few plants free of charge!

 

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Public Notice for the South San Diego Bay Wetland Mitigation Bank Released for Public Comment

The Public Notice for the South San Diego Bay Wetland Mitigation Bank (Bank) Prospectus has been released by the U.S. Army Corps of Engineers for public comment. Great Ecology led the development of the Prospectus on behalf of the Bank Sponsor, the Port of San Diego (Port), and its release is the culmination of three years of collaboration between the Port and the Great Ecology team. The proposed 80-acre wetland mitigation bank is located within an 83.5-acre parcel owned by the Port, and if approved, will include the establishment, re-establishment, and rehabilitation of tidal wetland and upland transitional habitats. Tidal wetlands, and their associated buffers, provide important ecosystem services, support nursery habitat for fisheries of ecological and commercial importance, and act as key feeding and breeding grounds for coastal and migratory bird species.  Great Ecology’s team includes ESA and RECON who provided engineering, hydrological, and restoration biology design.

The Bank Site is located within a former salt pond in San Diego. Historically, this salt pond was part of the Western Salt Work Company and served as a part of a network of condensation and crystallization salt evaporator ponds. Today, the Bank Site is largely upland and surrounded by large earthen berms, which isolates the interior of the site from tidal flows and prevents it from being a tidal wetland. The proposed project will restore tidal wetlands to the site by reducing the overall site elevation and breaching the surrounding berm to allow tidal flows to enter the site.

The completed project will include subtidal eelgrass, mudflat, transition zone, and upland habitats. The majority of the site’s historic perimeter berms will remain to provide a hydrological buffer around the site.

The Port and Great Ecology team are focusing on the next steps of the project planning, permitting, and bank entitlement process.

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