Results 91 to 100 of about 109,795 (286)

Sampling effort to characterize estuarine macroinfaunal communities in patchy habitats

Limnology and Oceanography: Methods, EarlyView.
Abstract Estuarine benthic macroinfauna have aggregated, patchy distributions, making accurate community measurements dependent upon sampling scales. The purpose of this study is to determine the appropriate core sizes and sampling effort needed to characterize benthic infaunal communities in Corpus Christi Bay, Texas, USA.
Paul A. Montagna
wiley   +1 more source

Monitoring guidance for marine benthic habitats.

, 2017
Marine benthic monitoring programmes produce evidence against which to evaluate the cause and direction of change in the marine environment. They can also inform which management measures are appropriate, and determine whether they have been successful.
Noble-James, T., Jesus, A., McBreen, F.
openaire   +2 more sources

Applicability of the steady‐state oxygen stable isotope method for estimating metabolism in low‐productivity Arctic lakes

Limnology and Oceanography: Methods, EarlyView.
Abstract Metabolism is a key property of lake ecosystem functioning, but logistical challenges make it difficult to estimate across remote regions. The steady‐state dissolved oxygen (DO) stable isotope method (18O method) estimates metabolism from discrete water samples and thus enables large‐scale surveys.
Fredrik Alriksson, Marcus Klaus, Cristian Gudasz, Matthew Bogard, Gerard Rocher‐Ros, Dominic Vachon, Jan Karlsson   +6 more
wiley   +1 more source

Benthic habitat influences sea scallop distributions and swimming behavior based on underwater imagery and machine learning

Ecological Informatics
Understanding the drivers of Atlantic sea scallop distribution and abundance is a priority for fisheries management. While factors influencing scallop habitat selection and recruitment remain poorly understood, the increasing use of optical surveys for ...
Liese A. Siemann, Matthew Dawkins, Luisa M. Garcia, Jonathan Crall, Tasha E. O'Hara   +4 more
doaj   +1 more source

Archaeological and Biogeochemical Investigation of Past Human Relationships With Now‐Endangered Fish Species: Lake Sturgeon and American Eel in Southern Ontario, Canada

International Journal of Osteoarchaeology, EarlyView.
ABSTRACT This paper explores the historical ecology and biogeography of two fish species that are currently endangered in the North American Great Lakes region, that were of great importance to the Indigenous people in the region, and that are the focus of ongoing conservation efforts on the part of descendant communities: lake sturgeon (Acipenser ...
Suzanne Needs‐Howarth, Alicia L. Hawkins, Trevor J. Orchard, Eric J. Guiry, Louis Lesage   +4 more
wiley   +1 more source

Metazoans of redoxcline sediments in Mediterranean deep-sea hypersaline anoxic basins [PDF]

, 2015
Background: The deep-sea hypersaline anoxic basins (DHABs) of the Mediterranean (water depth similar to 3500 m) are some of the most extreme oceanic habitats known.
Beaudoin, David J, Bernhard, Joan M, Edgcomb, Virginia P, Kormas, Konstantinos Ar, Morrison, Colin R, Pachiadaki, Maria G, Pape, Ellen, Todaro, M Antonio   +7 more
core   +4 more sources

The effects of seasonality and parasitism on diet and habitat selection in the common periwinkle

Oikos, EarlyView.
The common periwinkle Littorina littorea is an ecologically important grazer, known for its strong influence on algal communities and its role in structuring ecosystems. It serves as the first intermediate host for several trematode species in the Baltic Sea, especially for the fluke Cryptocotyle lingua.
Friederike Gronwald, Claudia Bommarito, Dakeishla M. Díaz‐Morales, Alessandro Manfrin, Cindy Martinez Reyes, Milen Nachev, Bernd Sures, Florian Weinberger   +7 more
wiley   +1 more source

Multi-Scale Coral Reef and Seascape Habitat Variables Combine to Influence Reef Fish Assemblages

Fishes
While benthic characteristics of coral reef habitats are a major driver of the structure of coral reef fish assemblages, non-reef habitats adjacent to coral reefs (e.g., mangroves, seagrass beds, and macroalgal beds) can affect reef fish assemblages ...
Katie T. Sievers, Eva C. McClure, Rene A. Abesamis, Garry R. Russ   +3 more
doaj   +1 more source

Habitat-mediated dive behavior in free-ranging grey seals.

PLoS ONE, 2013
Understanding the links between foraging behaviour and habitat use of key species is essential to addressing fundamental questions about trophic interactions and ecosystem functioning.
Mark Jessopp, Michelle Cronin, Tom Hart
doaj   +1 more source

Marine trophic architecture and hidden ecological connections in the Strait of Magellan: keystone species and ecosystem resilience

Oikos, EarlyView.
Understanding the ecological implications of species coexistence is central to biodiversity studies and to identify environmental and anthropogenic drivers of ecosystem dynamics, where ecological network analysis offers valuable insights. This study examines the complexity, structure, and potential responses to disturbances of the Strait of Magellan's ...
Claudia D. Andrade, Taryn Sepúlveda, Cristóbal Rivera, Cristian Aldea, Tomás I. Marina   +4 more
wiley   +1 more source