mpa monitoring plan
... MPAs to facilitate adaptive management of MPAs and ensure that the MPA network meets the goals of the Act. On August 5, 2009, the California Fish and Game Commission adopted a regional MPA network for a section of California’s waters called the North Central Coast region and these MPAs took effect o ...
... MPAs to facilitate adaptive management of MPAs and ensure that the MPA network meets the goals of the Act. On August 5, 2009, the California Fish and Game Commission adopted a regional MPA network for a section of California’s waters called the North Central Coast region and these MPAs took effect o ...
Enabling the Market: Incentives for Biodiversity in the Rangelands
... have received little investment largely because the landscapes are perceived to be relatively intact. However, recent State of the Environment reports suggest that rangeland ecosystems are in slow decline and extremely vulnerable to inappropriate land uses, fire management practices and invasive wee ...
... have received little investment largely because the landscapes are perceived to be relatively intact. However, recent State of the Environment reports suggest that rangeland ecosystems are in slow decline and extremely vulnerable to inappropriate land uses, fire management practices and invasive wee ...
Draft Comprehensive Conservation Plan and Environmental Impact
... Charles M. Russell National Wildlife Refuge and UL Bend National Wildlife Refuge, and describes and evaluates four alternative plans for managing wildlife, habitat, and wildlife-dependent public use. This process has involved the development of a vision, goals, objectives, and strategies that meet t ...
... Charles M. Russell National Wildlife Refuge and UL Bend National Wildlife Refuge, and describes and evaluates four alternative plans for managing wildlife, habitat, and wildlife-dependent public use. This process has involved the development of a vision, goals, objectives, and strategies that meet t ...
The interaction between cyanobacteria and zooplankton in a more
... The ongoing and predicted global increase in cyanobacterial dominance is one of the most visible threats to the ecology of lakes, rivers, and some estuaries (Paerl and Huisman, 2008). The structure and function of aquatic ecosystems largely depends on the quality and quantity of primary production f ...
... The ongoing and predicted global increase in cyanobacterial dominance is one of the most visible threats to the ecology of lakes, rivers, and some estuaries (Paerl and Huisman, 2008). The structure and function of aquatic ecosystems largely depends on the quality and quantity of primary production f ...
The eco-geography of the brown shrimp Crangon crangon in Europe
... Morocco within the Atlantic, and throughout the Mediterranean and Black Seas reflects the capability of C. crangon to cope with a wide range of temperature and salinity conditions, and is further explained by its migratory capacity. Present knowledge suggests that the limiting factor at the northern ...
... Morocco within the Atlantic, and throughout the Mediterranean and Black Seas reflects the capability of C. crangon to cope with a wide range of temperature and salinity conditions, and is further explained by its migratory capacity. Present knowledge suggests that the limiting factor at the northern ...
Scofield Reservoir predator-prey interactions:
... and subsequent predator foraging decisions. Given these complexities, understanding the mechanisms driving predator-prey relationships in cold water impoundments can be challenging, but is also therefore critical for making informed management decisions (Johnson and Goettle 1999). Bioenergetics-base ...
... and subsequent predator foraging decisions. Given these complexities, understanding the mechanisms driving predator-prey relationships in cold water impoundments can be challenging, but is also therefore critical for making informed management decisions (Johnson and Goettle 1999). Bioenergetics-base ...
chapter9
... Despite some efforts to limit farmed crawfish populations only to the red swamp crawfish, excluding the white river crawfish from ponds whenever possible, both species are responsive to routine culture practices and often coexist in production ponds. In general, these two species have environmental ...
... Despite some efforts to limit farmed crawfish populations only to the red swamp crawfish, excluding the white river crawfish from ponds whenever possible, both species are responsive to routine culture practices and often coexist in production ponds. In general, these two species have environmental ...
Draft Upper Columbia Salmon Recovery Plan
... 1.1 Definition of a Recovery Plan ..............................................................................................2 1.2 Organization of Plan .............................................................................................................3 1.2.1 Executive Summary .......... ...
... 1.1 Definition of a Recovery Plan ..............................................................................................2 1.2 Organization of Plan .............................................................................................................3 1.2.1 Executive Summary .......... ...
UCSRP Recovery Plan
... Draft Upper Columbia Spring Chinook Salmon, Steelhead, and Bull Trout Recovery Plan ...
... Draft Upper Columbia Spring Chinook Salmon, Steelhead, and Bull Trout Recovery Plan ...
A review of the biology of Gambusia affinis and G. holbrooki
... them as being highly beneficial to humans through controlling mosquitoes and the diseases they harbor, and others expressing concern about the negative impacts that these fish may have on other species with which they interact. Because of the widespread distribution, high levels of abundance, ease of ...
... them as being highly beneficial to humans through controlling mosquitoes and the diseases they harbor, and others expressing concern about the negative impacts that these fish may have on other species with which they interact. Because of the widespread distribution, high levels of abundance, ease of ...
Beds of blue mussels and Pacific oysters
... were made: 1. Further research is needed to get insight into the spatfall process in general, and the cause of low recruitment of intertidal mussels and mussel beds. 2. The settlement of the introduced Pacific oysters may have a major impact on native mussel beds and their biomass in the near futu ...
... were made: 1. Further research is needed to get insight into the spatfall process in general, and the cause of low recruitment of intertidal mussels and mussel beds. 2. The settlement of the introduced Pacific oysters may have a major impact on native mussel beds and their biomass in the near futu ...
CURRICULUM VITAE - CAP Network
... important?” UNC Sea Grant #NA46RG0087, Project R/MRD-35, J.A. Rice and L.B. Crowder (PIs), February 1997-January 1999, $61,296. “Impact of low oxygen dynamics on the spatial/temporal distribution of fishes in the Neuse River, NC,” NC Sea Grant #NA46RG0087; R/MG-94-20, L.B. Crowder (PI) April 1997-Ma ...
... important?” UNC Sea Grant #NA46RG0087, Project R/MRD-35, J.A. Rice and L.B. Crowder (PIs), February 1997-January 1999, $61,296. “Impact of low oxygen dynamics on the spatial/temporal distribution of fishes in the Neuse River, NC,” NC Sea Grant #NA46RG0087; R/MG-94-20, L.B. Crowder (PI) April 1997-Ma ...
... development through official reports from its member countries. These data are analysed, and the status and trends of the sector’s development are regularly reported through two main publications of the FAO Fisheries Department: The state of world fisheries and aquaculture (SOFIA) and Review of the ...
Influence of intraguild interactions on resource use by
... reindeer carcasses found at lynx clusters as probable lynx kills. Confirmed lynx kills were defined by clean bite marks to the throat of a reindeer, but the throat often was consumed by the time we arrived. Throat bites were observed in only ,2% of the reindeer kills despite 10% of the kill sites ha ...
... reindeer carcasses found at lynx clusters as probable lynx kills. Confirmed lynx kills were defined by clean bite marks to the throat of a reindeer, but the throat often was consumed by the time we arrived. Throat bites were observed in only ,2% of the reindeer kills despite 10% of the kill sites ha ...
Influence of intraguild interactions on resource use by
... reindeer carcasses found at lynx clusters as probable lynx kills. Confirmed lynx kills were defined by clean bite marks to the throat of a reindeer, but the throat often was consumed by the time we arrived. Throat bites were observed in only ,2% of the reindeer kills despite 10% of the kill sites ha ...
... reindeer carcasses found at lynx clusters as probable lynx kills. Confirmed lynx kills were defined by clean bite marks to the throat of a reindeer, but the throat often was consumed by the time we arrived. Throat bites were observed in only ,2% of the reindeer kills despite 10% of the kill sites ha ...
Research Information Needs
... RIN 2.3.1 - How do parasite/disease loads affect population viability? RIN 2.3.2 - How will warming mainstem temperatures affect the abundance and distribution of parasites/disease? RIN 2.3.3 - How does nonnative fish control/affect disease/parasite loads? (Note: The concept is if there are fewer ho ...
... RIN 2.3.1 - How do parasite/disease loads affect population viability? RIN 2.3.2 - How will warming mainstem temperatures affect the abundance and distribution of parasites/disease? RIN 2.3.3 - How does nonnative fish control/affect disease/parasite loads? (Note: The concept is if there are fewer ho ...
Predicting the invasion success of an introduced
... Abstract: We demonstrate that invasion success, through the introduction and establishment stages, can generally be predicted based on biological characteristics of the organisms and physical aspects of the environment; however, predicting subsequent effects during integration is more challenging, e ...
... Abstract: We demonstrate that invasion success, through the introduction and establishment stages, can generally be predicted based on biological characteristics of the organisms and physical aspects of the environment; however, predicting subsequent effects during integration is more challenging, e ...
Northern Abalone (Haliotis kamtschatkana)
... Population sizes and trends Surveys have provided a time series of abalone densities and size frequencies from the southeast Queen Charlotte Islands (Haida Gwaii) and the central coast of British Columbia every 3-5 years from 1978 to 2007. Since 1978, abalone densities have declined by 83% on the ce ...
... Population sizes and trends Surveys have provided a time series of abalone densities and size frequencies from the southeast Queen Charlotte Islands (Haida Gwaii) and the central coast of British Columbia every 3-5 years from 1978 to 2007. Since 1978, abalone densities have declined by 83% on the ce ...
Thresholds in Habitat Supply: A Review of the Literature
... populations, or species extirpation or extinction. These threshold changes in species populations ultimately occur due to insufficient amounts of habitat, leading to the concept of minimum thresholds in habitat amount, or the “extinction threshold.” Although thresholds can manifest in many aspects o ...
... populations, or species extirpation or extinction. These threshold changes in species populations ultimately occur due to insufficient amounts of habitat, leading to the concept of minimum thresholds in habitat amount, or the “extinction threshold.” Although thresholds can manifest in many aspects o ...
Linking Landscapes and Food Webs: Effects of Omnivorous Fish
... 25 to 30 mm in length) develop morphological features, inof aquatic ecosystems, including other fish species, zoocluding a subterminal mouth, muscular gizzard, and elongated plankton, phytoplankton, and nutrients (Drenner et al. 1986, intestinal tract that allow them to feed on sediment detritus, 19 ...
... 25 to 30 mm in length) develop morphological features, inof aquatic ecosystems, including other fish species, zoocluding a subterminal mouth, muscular gizzard, and elongated plankton, phytoplankton, and nutrients (Drenner et al. 1986, intestinal tract that allow them to feed on sediment detritus, 19 ...
The Variable Position of Arctic Charr (Salvelinus alpinus (L.))
... of the lake, where benthic macroinvertebrates, such as small clams and chironomid larvae, are mainly consuming settling or sedimented organic matter produced in the pelagic and littoral areas. The pelagic zone is the photic, open-water area above the profundal zone, where photosynthetic phytoplankto ...
... of the lake, where benthic macroinvertebrates, such as small clams and chironomid larvae, are mainly consuming settling or sedimented organic matter produced in the pelagic and littoral areas. The pelagic zone is the photic, open-water area above the profundal zone, where photosynthetic phytoplankto ...
The diet of saltmarsh consumers - LSU Digital Commons
... with increases in MPB, macroalgae and phytoplankton deposition (Kelaher and Levinton 2003, Marsh and Tenore 1990). Stable isotopes have revealed the importance of MPB and phytoplankton to the food web of a variety of salt marshes. For example, Wainright et al. (2000) found MPB was as important as S ...
... with increases in MPB, macroalgae and phytoplankton deposition (Kelaher and Levinton 2003, Marsh and Tenore 1990). Stable isotopes have revealed the importance of MPB and phytoplankton to the food web of a variety of salt marshes. For example, Wainright et al. (2000) found MPB was as important as S ...
INTRODUCTION - Wild Utah Project
... abundant in the areas where they made their collections. In 1889, D. S. Jordan collected least chub from the Provo River drainage and noted that they were “extremely common in the pools of water about the mouth of the Provo River and in the carp ponds next to Utah Lake” (Jordan 1891). Jordan and Eve ...
... abundant in the areas where they made their collections. In 1889, D. S. Jordan collected least chub from the Provo River drainage and noted that they were “extremely common in the pools of water about the mouth of the Provo River and in the carp ponds next to Utah Lake” (Jordan 1891). Jordan and Eve ...
Overexploitation
Overexploitation, also called overharvesting, refers to harvesting a renewable resource to the point of diminishing returns. Sustained overexploitation can lead to the destruction of the resource. The term applies to natural resources such as: wild medicinal plants, grazing pastures, game animals, fish stocks, forests, and water aquifers.In ecology, overexploitation describes one of the five main activities threatening global biodiversity. Ecologists use the term to describe populations that are harvested at a rate that is unsustainable, given their natural rates of mortality and capacities for reproduction. This can result in extinction at the population level and even extinction of whole species. In conservation biology the term is usually used in the context of human economic activity that involves the taking of biological resources, or organisms, in larger numbers than their populations can withstand. The term is also used and defined somewhat differently in fisheries, hydrology and natural resource management.Overexploitation can lead to resource destruction, including extinctions. However it is also possible for overexploitation to be sustainable, as discussed below in the section on fisheries. In the context of fishing, the term overfishing can be used instead of overexploitation, as can overgrazing in stock management, overlogging in forest management, overdrafting in aquifer management, and endangered species in species monitoring. Overexploitation is not an activity limited to humans. Introduced predators and herbivores, for example, can overexploit native flora and fauna.