Results 61 to 70 of about 1,879 (181)
Retention Bans Are Beneficial but Insufficient to Stop Shark Overfishing
ABSTRACT Sharks are among the most threatened groups of exploited fishes, comprising common bycatch across many fisheries. Management efforts intended to safeguard threatened species have increasingly focused on retention bans to reduce bycatch mortality. However, the population effects of such measures remain unevaluated across species.
Leonardo Manir Feitosa +7 more
wiley +1 more source
Observations on Phallocryptus spinosa (Branchiopoda, Anostraca) populations from the high plateaus of Northeastern Algeria [PDF]
Phallocryptus spinosa (Thamnocephalidae) is a small primitive crustacean which lives in temporary saline pools of the Palaearctic region called Chott, Sebkha, Garâa or Daya in North Africa. Data on its biology and life history are very scarce despite its
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Transgenerational Plasticity of Maternal Hemolymph Trehalose in Aphids
Maternal hemolymph trehalose influences aphid transgenerational plasticity and adaptation to environmental stress. Higher trehalose levels in winged aphids are associated with increased trehalose levels in the offspring, potentially aiding resilience.
Naomi Soma, Shingo Kikuta
wiley +1 more source
The vertical transmission of microbes from mother to offspring is critical to the survival, development, and health of animals. Invertebrate systems offer unique opportunities to conduct studies on microbiome‐development‐reproduction dynamics since ...
Emily C. Jennings +3 more
doaj +1 more source
The brine shrimp Artemia: adapted to critical life conditions
The brine shrimp Artemia is a micro-crustacean, well adapted to the harsh conditions that severely hypersaline environments impose on survival and reproduction.
Gonzalo M Gajardo, John A Beardmore
doaj +1 more source
The whale shark: Is the species endangered or vulnerable? [PDF]
Notable contributions summarising our knowledge of the known habits of the whale shark in general, and its occurrence in Indian coastal waters have been made by Gudger (1935), Chevey (1936) and Prater (1941).
Silas, E G
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The increase in fish production in aquaculture reflects the growth of the world population. However, this expansion is accompanied by challenges, such as the intensification of production systems through increased stocking density, which induces stress in fish, weakening their immune system and making them more susceptible to disease outbreaks ...
Maria Carolina Ribeiro +5 more
wiley +1 more source
Observations on the egg-cases of some ovo-viviparous and viviparous elasmobranchs, with a note on the formation of the elasmobranch egg-case [PDF]
Egg-cases of a number of oviparous Elasmobranchs have been described from time to time, the oblong egg-capsules of skates and rays being known as `skate barrows,' 'sailors' purses,' 'mermaids' purses,' and 'mermaids' pin-boxes'.
Raghu Prasad, R
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Turtle body size and limb size scale nearly isometrically along the group's evolution, although major deviations are only seen in highly specialized ecological or morphological groups. The evolution of the shell constrained turtle body proportions, as they show lower rates of variance accumulation in these allometries than other more diverse and ...
Guilherme Hermanson, Serjoscha W. Evers
wiley +1 more source
Extraembryonic Membranes and Placentation in the Mexican Snake Conopsis lineata
This research is mainly focused on the structure of the extraembryonic membranes and placentation of the viviparous snake Conopsis lineata, during the gestation. C. lineata is a lecithotrophic species, eggs/embryos that develop inside the uterus remain enclosed by a thin eggshell membrane with unchanged fibers throughout gestation; and it has five ...
Cecilia de Dios‐Arcos +1 more
wiley +1 more source

