Results 41 to 50 of about 4,603,944 (167)

Identifying the potential of anadromous salmonid habitat restoration with life cycle models.

PLoS ONE, 2021
An investigation into the causes of species decline should include examination of habitats important for multiple life stages. Integrating habitat impacts across life stages with life-cycle models (LCMs) can reveal habitat impairments inhibiting recovery
Jeffrey C Jorgensen, Colin Nicol, Caleb Fogel, Timothy J Beechie   +3 more
doaj   +1 more source

Functional clinical outcomes in multiple sclerosis: Current status and future prospects [PDF]

, 2015
For decades, the Expanded Disability Status Scale (EDSS) has been the principal measure of disability in clinical trials in patients with multiple sclerosis (MS) and in clinical practice.
Deleu, Dirk T., Dahdaleh, Maurice P., Alroughani, Raed, Inshasi, Jihad Said, Yamout, Bassem I., Bohlega, Saeed A., Sahraian, Mohammed A., AlTahan, Abdulrahman M., Rieckmann, Peter, Al-Jumah, Mohammed A., Alsharoqi, Isa Ahmed, Deleu, Dirk, Aljumah, Mohammed, Daif, Abdulkader Kader M., Karabudak, Rana, Alroughani, Raed A., Sahraian, Mohammad Ali, Inshasi, Jihad S., Dahdaleh, Maurice, Alsharoqi, I. Ahmed, Amous, Amer, Daif, Abdulkader   +21 more
core   +1 more source

Gonad development and reproduction of the ballyhoo half beak, Hemiramphus brasiliensis from the coastal waters of Rio Grande do Norte, Brazil

Brazilian Journal of Biology
The gonad development and reproductive aspects of Hemiramphus brasiliensis from the coastal waters of Rio Grande do Norte, Brazil were verified. This paper presents data on the length-weight relationship, sex ratio, length at first sexual maturity, gonad
MR. Oliveira, NB. Silva, ME. Yamamoto, S. Chellappa   +3 more
doaj   +1 more source

Reproductive biology, steroid and biochemical profiles of Dentex dentex ovaries in the Eastern Mediterranean in relation to histological structure

Egyptian Journal of Aquatic Research, 2016
This study focuses on reproductive biology in female Dentex dentex, which is a summer multiple spawner with the spawning period extending from late April to June. Females with body length over 35 cm were mature.
R.F. Ismail, S.S. Assem, A.F. Fahmy, N.M. Abou Shabana, H.S. El-Sayed, M.A. Al-Absawey   +5 more
doaj   +1 more source

Reproductive resilience: a paradigm shift in understanding spawner‐recruit systems in exploited marine fish

, 2017
A close relationship between adult abundance and stock productivity may not exist for many marine fish stocks, resulting in concern that the management goal of maximum sustainable yield is either inefficient or risky.
Andres Ospina‐Alvarez, Ospina Alvarez, Andres, Claire B Paris, DeCelles, Greg, Tringali, Michael D, Susan Lowerre‐Barbieri, Steven X Cadrin, Stachura, Megan M, Alós, Josep, Ospina-Alvarez, Andres, Lowerre-Barbieri, Susan, Cadrin, Steven X, Catalán, Ignacio A, Erisman, Brad, Cadrin, Steven X., Brad Erisman, Muhling, Barbara, Sarah Walters Burnsed, Barbara Muhling, Paris, Claire B, Paris, Claire B., Greg DeCelles, Pierre Pepin, Ignacio A Catalán, Tringali, Michael D., Michael D Tringali, Burnsed, Sarah Walters, Catalan, Ignacio A., Stachura, Megan M., Josep Alós, Megan M Stachura, Lowerre Barbieri, Susan, Pepin, Pierre   +32 more
core   +1 more source

Reproductive biology of Chromidotilapia guntheri (Sauvage, 1882) (Cichlidae, Perciformes) in four coastal rivers (Ehania, Noé, Soumié and Eholié) of Côte d’Ivoire in West Africa

Knowledge and Management of Aquatic Ecosystems, 2010
The reproductive activities of a small Cichlid Chromidotilapia guntheri were investigated from July 2003 to March 2005 in four coastal rivers (Ehania, Eholié, Noé and Soumié), in the southeast of Côte d’Ivoire.
Boussou C.K., Edia Edia O., Konan Felix K., Ouattara Mamadou, Ouattara Allassane, Gourène Germain   +5 more
doaj   +1 more source

Spawner-recruit relationships and fish stock carrying capacity in aquatic ecosystems

, 2003
Few marine ecologists have addressed important questions about the relative productivity and carrying capacity of different ecosystems required to support fish populations. Whereas many researchers have investigated interannual variability in recruitment
MacKenzie, Brian, Myers, R.A., Bowen, K.G.   +2 more
core   +1 more source

Reproductive biology of Bryconamericus iheringii (Ostariophysi: Characidae) from rio Vacacaí, RS, Brazil

Neotropical Ichthyology
In this paper we describe some aspects of the reproduction and development of secondary sexual characters of Bryconamericus iheringii, based on the analysis of 194 females and 210 males collected monthly in the rio Vacacaí (30º21'34"S and 54º18'48"W ...
Vinicius Renner Lampert, Marco Aurélio Azevedo, Clarice Bernhardt Fialho   +2 more
doaj   +1 more source

Quantifying flow and nonflow management impacts on an endangered fish by integrating data, research, and expert opinion

Ecosphere, 2022
Managers charged with recovering endangered species in regulated river segments often have limited flexibility to alter flow regimes and want estimates of the expected population benefits associated with both flow and nonflow management actions ...
Charles B. Yackulic, Thomas P. Archdeacon, Richard A. Valdez, Monika Hobbs, Michael D. Porter, Joel Lusk, Ashley Tanner, Eric J. Gonzales, Debbie Y. Lee, Grace M. Haggerty   +9 more
doaj   +1 more source

Aspects of fishing and reproduction of the black grouper Mycteroperca bonaci (Poey, 1860) (Serranidae: Epinephelinae) in the Northeastern Brazil

Neotropical Ichthyology
The reproductive biology of the black grouper Mycteroperca bonaci, caught by artisanal fishermen using hook and line or compressor - assisted spear fishing, from the Northeastern shelf and oceanic banks of Brazil, was studied between August 1996 and ...
Simone Ferreira Teixeira, Beatrice Padovani Ferreira, Isaíras Pereira Padovan   +2 more
doaj   +1 more source